Answer:
x=1
y=2
Step-by-step explanation:
Hope this helps (3
What are expressions equivalent to 12X+36Y?
To express 12X+36Y in different terms, we can use other variables or coefficients while maintaining the same relationship between X and Y. Two equivalent expressions are 4A+12B and 6C+18D.
To express the expression 12X+36Y in terms of equivalent mathematical expressions using different variables or coefficients, we can use any other variables or coefficients as long as they maintain the same relationship between X and Y. Here are two distinct expressions:
4A + 12B, where A is equivalent to X and B is equivalent to Y.6C + 18D, where C is equivalent to X/2 and D is equivalent to Y/2.For more such questions on equivalent expressions, click on:
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The probable question may be:
Express the expression 12X+36Y in terms of equivalent mathematical expressions using different variables or coefficients. Provide at least two distinct expressions that are equivalent to 12X+36Y.
What should be done to x^2 + 15x in order to create a perfect square?
[tex]\bf \qquad \textit{perfect square trinomial} \\\\ (a\pm b)^2\implies a^2\pm \stackrel{\stackrel{\text{\small 2}\cdot \sqrt{\textit{\small a}^2}\cdot \sqrt{\textit{\small b}^2}}{\downarrow }}{2ab} + b^2 \\\\[-0.35em] ~\dotfill[/tex]
[tex]\bf x^2+15x+\boxed{?}^2\implies \stackrel{\textit{we know the middle term is}}{2\sqrt{x^2}\cdot \sqrt{\boxed{?}^2}\implies 2x\boxed{?}}\qquad then\qquad 2x\boxed{?}=15x \\\\\\ \boxed{?}=\cfrac{15x}{2x}\implies \boxed{?}=\cfrac{15}{2}\qquad \impliedby \textit{we should add that much \underline{squared}} \\\\[-0.35em] ~\dotfill\\\\ x^2+15x+\left( \cfrac{15}{2} \right)^2\implies \left(x+ \cfrac{15}{2} \right)^2[/tex]
Ummmmm don’t pay any attention to the writing there just so he problem for me please.I really need help
I dont know how to help you bud give me a geometry and I could maybe solve it lol
150 is divisible by which of the following numbers:2,3,4,5,6,9 or 10
Answer: 150 is divisible by 1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 75, and 150.
I hope that this helps! :D
Answer:
2,3,5,6, and 10
Step-by-step explanation:
If you get a whole number when you divide by one of these numbers that means the number is divisible, if you get a fraction/decimal then it isn't divisible
an isosceles triangle has an angle that measures 140 degrees. which other angles could be in that isosceles triangle?
An Isosceles triangle means it has two sides that measures the same.
When we have two sides that measures the same also means that they have the same angles.
If one angel measures 140 that means that the other angles are 20 and 20
Because the angles of the triangle has to sum to 180
In an isosceles triangle, two angles are same and the sum of all angles is 180 degrees. If one angle is 140 degrees, the other two angles must sum to 40 degrees, and since they are equal, each would measure 20 degrees.
Explanation:In an isosceles triangle, two of the angles are equal, and the third angle, also known as the base angle, is different. The total sum of the angles in any triangle, including an isosceles triangle, is always 180 degrees. Thus, if one of the angles measures 140 degrees, the remaining two angles must sum up to 40 degrees. Since these two angles are equal (as it is an isosceles triangle), each of them would measure 20 degrees. Thus, in the given isosceles triangle, the other two angles would measure 20 degrees each.
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plz help to do it of math
A leap year consists of 366 days.
52 weeks + 2 days.
These 2 days can be: (mon,tue),(tue,wed),(wed,thu),(thu,fri),(fri,sat)(sat,sun)(sun,mon)
Thus, the total number of cases = 7.
The number of cases in which we get Friday = 2(Thu, Fri)(Fri, Sat).
Therefore the required probability = 2/7.
The area sector AOB is 20.25π ft squared. Find the exact area of the shaded region.
Check the picture below.
so the triangle has a height of 9 and a base of 9, since it's the radius anyway.
if we subtract the area of that triangle from the area of the circle's sector, what's leftover is just the shaded area.
20.25π - 40.5.
Help solve 87 please
Answer:
The inequality is y > 1/2 x - 2
Step-by-step explanation:
* To solve this problem we must to know how to make an equation
of the line from two point
- If the line passes through points (x1 , y1) and (x2 , y2)
- The form of the equation is y = mx + c, where m is the slope of the
line and c is the y-intercept
- The rule of the slope is m = (y2 - y1)/(x2 - x1)
- The y-intercept means the line intersect the y-axis at point (0 ,c)
* Now lets solve the problem
- To write the inequality we must to make the equation of the line
from any two points on it
∵ The line passes through points (4 , 0) and (0 , -2)
- Let (4 , 0) is (x1 , y1) and (0 , -2) is (x2 , y2)
∵ m = (y2 - y1)/(x2 - x1)
∴ m = (-2 - 0)/(0 - 4)
∴ m = (-2)/-4 = 1/2
- Lets write the form of the equation
∵ y = mx + c ⇒ substitute the value of m
∴ y = 1/2 x + c
- The line intersects the y-axis at point (0 , -2)
∴ c = -2
∴ y = 1/2 x + -2
∴ y = 1/2 x - 2
- lets look to the line if it is dashed line then there is no equal with the
inequality (> , <) sign, if it is solid line then there is equal with the
inequality sign (≥ , ≤)
∵ The line is dashed line
∴ The sign of inequality is > or <
- Lets look to the shaded part, if it is over the line then the inequality
will be y > 1/2 x - 2, if it is under the line then the inequality will
be y < 1/2 x - 2
∵ The shaded part is over the line
∴ y > 1/2 x - 2
* The inequality is y > 1/2 x - 2
The measure of an angle is 78° less than the measure of its complement. What is the measure of the angle?
84°
51°
6°
12°
The measure of the angle is 6°
A complementary angle consists of two angles who's sum is 90 degrees. Since there are two we know this for sure:
1st angle: x (unknown value)
2nd angle: x-78 (78 less then its complement)
total: 90
If we put the equation together we get: x+x-78= 90
x+x-78+78=90+78
2x=168
2x/2=168/2
x=84
Now we know that x = 84, know we gonna find the 2nd angle:
1st: x=84
2nd: 84-78 = 6
total: 84+6=90
48j 5 k 2 ÷ (-3j 3 k)
where are the signs between the 5 and 48j, and k and 2? is at multiplication? cause you use parentheses only for that.
If it is multiplication... then 3j * 3k = 9jk
48j * 5 = 240j * k =240jk * 2 = 480jk / 9jk = 53.3333333333jk
Σ20/n=1(3n+2) = what
Which of the following is a polynomial function in standard form with zeros at -8, -1, and 3?
Answer:
Option A is correct.
Step-by-step explanation:
Zeros at -8, -1 and 3 means these are the factors of the polynomial.
x=-8, x=-1 and x =3
It can be written as:
x+8=0, x+1=0 and x-3=0
Factors can be written as:
(x+8)(x+1)(x-3)=0
Multiplying the first two terms and then their product with third terms:
[tex](x(x+1) +8(x+1))(x-3) =0\\(x^2+x+8x+8)(x-3)=0\\Adding\,\, like\,\, terms\,\,:\,\,\\(x^2+9x+8)(x-3) =0\\x(x^2+9x+8) -3(x^2+9x+8)=0\\x^3+9x^2+8x-3x^2-27x-24=0\\Adding\,\, like\,\, terms\,\,:\,\,\\x^3+9x^2-3x^2+8x-27x-24=0\\x^3+6x^2-19x-24=0\\or\,\,f(x) = x^3+6x^2-19x-24[/tex]
So, Option A is correct.
Find the price of an MP3 player that costs 129.50 with a markdown of 60%?
Answer:
323.75
Step-by-step explanation:
129.50=40% because it is the selling price not the marked price
if,129.50=40 what about 100
129.50×100/40
To calculate the discounted price of the MP3 player after a 60% markdown, multiply the original price of $129.50 by 60% to find the markdown amount of $77.70, then subtract it from the original price to get the final price of $51.80.
Explanation:To find the price of an MP3 player with a markdown of 60%, you can perform the following calculations:
First, calculate the amount of the markdown by multiplying the original price by the markdown percentage.Then, subtract the markdown amount from the original price to get the discounted price.The original price of the MP3 player is $129.50 and the markdown is 60%. We calculate 60% of $129.50 which is 0.60 × 129.50 = $77.70. Next, we subtract this markdown from the original price: 129.50 - 77.70 = $51.80.
Therefore, the discounted price of the MP3 player is $51.80.
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Lorenzo is moving from New York to California. he will drive 2641 miles from his old Home to his new home. every hour he will drive 60 miles. about how many days will it take him to get to his new home if he drives for 8 hours a day?
Answer:
Every hour he drives 60 miles and if he drives 8 hours a day ( 8x60 ), that means that he drives 480 miles a day. Then you would do, 2641 / 480, to find the number of days it should take. The answer is around 5.5 days.
What is the median of
17,23,8,5,9,16,22,11,13,15,17,18
Answer:
15.5 or 15 1/2
arrange all numbers least to greatest and cross out each number until u get to the last two, once u get to the last two add them and divide them by two:
Help ITS DUE Tomorrow!!!!!!!!
Answer:
C 18%
Step-by-step explanation:
To find the percent increase ,take the new amount and subtract the old amount
12.39 - 10.50 = 1.89
Divide this by the original amount
1.89/10.50 = .18
Multiply this by 100 to get the percent
.18*100% = 18%
What is the prescribed dosage of a certain medicine for a 6-year-old child if the adult dosage of
the medicine is 180 milligrams?
What is C?
The formula below is used to calculate the correct dosage for a child:
C= a/(a+12) ∙ A
C = child’s dosage in milligrams
a = age of the child
A = adult dosage in milligrams
Show work
Answer:
The dose in milligrams of a 6-year-old child is 60.
Step-by-step explanation:
The formula is:
[tex]C = \frac{a}{(a+ 12)}A[/tex]
We know that
A= adult dosage in milligrams=180 milligrams
a = age of the child = 6 years-old
So the child’s dosage in milligrams is:
[tex]C = \frac{6}{(6+12)}*180[/tex]
[tex]C = \frac{1}{(3)}*180[/tex]
[tex]C = \frac{180}{(3)}[/tex]
[tex]C = 60\ milligrams[/tex]
Final answer:
To find the child's dosage of medicine, apply the formula C = a/(a+12) x A with a being the child's age and A the adult dosage. For a 6-year-old, the dosage is 60 milligrams.
Explanation:
To calculate the prescribed dosage of medicine for a 6-year-old child when the adult dosage is 180 milligrams, we use the formula C = a/(a+12) ⋅ A, where C is the child’s dosage in milligrams, a is the age of the child, and A is the adult dosage in milligrams.
Plugging the given values into the formula we get:
C = 6 / (6 + 12) ⋅ 180
C = 6 / 18 ⋅ 180
C = 1 / 3 ⋅ 180
C = 180 / 3
C = 60 milligrams
Therefore, the prescribed dosage for a 6-year-old child is 60 milligrams.
Find the value of x if m<4 = 2x + 20 and m<8 = 3x - 5. Use that info to calculate the exact measure of each angle.
Since m<4 and m<8 both add up to 180 degrees. Combine 2x + 20 and 3x - 5 and set it equal to 180. By subtracting 15 to the other side and dividing five to the other side you get x=33. Plug 33 back into the angle measurement separate equations to find degree angle measurement. Your welcome.
A.
x f(x)
0 1
2 3
3 4
4 5
5 6
6 7
B.
x f(x)
-3 9
-2 4
-1 1
0 0
1 1
2 4
C.
x f(x)
0 3
2 3
3 3
4 3
5 3
6 3
D.
x f(x)
0 -1
2 3
0 4
2 5
0 6
2 7
Which table does NOT represent a function?
A)
B)
C)
D)
Answer:
D)Step-by-step explanation:
A function is a relation that associates each element x of a set X, to a single element y of another set Y.
In D) for x = 0 we have three values of y = f(x): -1, 4 and 6.
Therefore this table does not represent a function.
Answer:
for the first graph it is
a=1
b= 1/16
c=1/256
for the second graph it is
d=1
e=4/9
f=16/81
Please help the year is almost over and I need help with this or I will fail and get held back and my sisters will tease me!!!! 20 points
Answer:
The total weight of the packages of fruit that weigh less than half a pound is, 7/8.
Step-by-step explanation:
This reason being is because 2 of the 1/8ths are under 1/2 of a pound, and the 1/4th and the 3/8 is all under 1/2 of a pound. You add the 2 1/8ths together and get 2/8 + the 3/8 = 5/8. Then you add the 5/8 together with the only 1/4th and you get 7/8, as your answer.
Hope this helps!! :)
Find the total area of the solid figure
Answer:
126 ft²Step-by-step explanation:
We have
2 rectangles 3ft × 5ft
2 rectangles 5ft × 6ft
2 rectangles 3ft × 6ft
The formula of an area of a rectangle:
A = lw
l, w - dimensions of a rectangle
Calculate:
A₁ = (3)(5) = 15 ft²
A₂ = (5)(6) = 30 ft²
A₃ = (3)(6) = 18 ft²
The total area of the solid figure:
A = 2A₁ + 2A₂ + 2A₃ = 2(A₁ + A₂ + A₃)
Substitute:
A = 2(15 + 30 + 18) = 2(63) = 126 ft²
What are the solutions of the following system?
X+y = 25
| 2x+y= -5
(0,-5) and (-5,5)
(0,-5) and (5, -15)
(0, -5) and (-4, 3)
(0, -5) and (4, -13)
Final answer:
The solutions of the given system can be found by solving the equations simultaneously using the method of substitution. The solution is (x, y) = (-30, 55).
Explanation:
The solutions of the given system of equations can be found by solving it simultaneously. We have the following equations:
X+y = 25
| 2x+y= -5
To solve this system, we can use the method of substitution or elimination. Let's use the method of substitution:
From equation 1, we can express y in terms of x as: y = 25 - xSubstitute this value of y into equation 2: 2x + (25 - x) = -5Simplify the equation: x + 25 = -5Solve for x: x = -30Substitute this value of x back into equation 1 to find y: y = 25 - (-30) = 55Therefore, the solution to the system is (x, y) = (-30, 55).
Explain how to write the rational number 3.21 in the form a/b.
Answer:
3 21/100
just a fraction.
The polynomial 24x3 − 54x2 + 44x − 99 is factored by grouping. 24x3 − 54x2 + 44x − 99 24x3 + 44x − 54x2 − 99 4x(____) − 9(____) What is the common factor that is missing from both sets of parentheses?
Answer: [tex]6x^2+11[/tex]
Step-by-step explanation:
Given the polynomial of degree 3:
[tex]24x^3 - 54x^2 + 44x -99[/tex]
You can observe make two groups or two terms each:
[tex](24x^3 + 44x) - (54x^2 + 99)[/tex]
The Greatest Common Factor (GCF), is the highest number that divides into two or more numbers without leaving remainder.
You can observe that the GCF of both set are factored out ([tex]4x[/tex] and [tex]9[/tex]), then, you can find the common factor that is missing from both sets of parentheses with this procedure:
[tex](\frac{24x^3}{4x}+\frac{44x}{4x})-(\frac{54x^2}{9}+\frac{99}{9})=(6x^2+11)-(6x^2+11)[/tex]
You can observe that the common factor that is missing from both sets of parentheses is:
[tex]6x^2+11[/tex]
Given that p is an integer, q = -12 and the quotient of
p
q
is -3, find p.
A) -36
B) -4
C) 4
D) 36
Answer: D
Step-by-step explanation:
What value of c makes the equation true? Assume x>0 and y>0 3√x^3/cy^4=x/4y(3√y) c = 12 c = 16 c = 81 c = 64
The value of c=12 will makes the equation true. for the given expression.
what is the value?Here in the question we have expression:
[tex]\dfrac{3\sqrt{x^3}}{cy^4}}=\dfrac{x}{4y^3\sqrt{y}}[/tex]
By solving the above equation we will get:
[tex]12\sqrt{x}=c\sqrt{y}[/tex]
So value of c=12 will makes the equation true. for the given expression.
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The correct value of [tex]\( c \)[/tex] that makes the equation true is [tex]\( c = 64 \)[/tex].
To find the value of [tex]\( c \)[/tex], we start by simplifying the given equation:
[tex]\[ 3\sqrt{\frac{x^3}{cy^4}} = \frac{x}{4y}(3\sqrt{y}) \][/tex]
First, we simplify the left side of the equation by applying the cube root to both the numerator and the denominator:
[tex]\[ \frac{3\sqrt{x^3}}{3\sqrt{cy^4}} = \frac{x}{4y}(3\sqrt{y}) \][/tex]
The cube root of [tex]\( x^3 \)[/tex] is [tex]\( x \)[/tex] , and the cube root of [tex]\( y^4 \)[/tex] is [tex]\( y \)[/tex] times the cube root of [tex]\( y \)[/tex], which is [tex]\( y \cdot y^{1/3} \)[/tex]. Simplifying further, we get:
[tex]\[ \frac{x}{3\sqrt{c} \cdot y} = \frac{x}{4y}(3\sqrt{y}) \][/tex]
Now, we simplify the right side of the equation:
[tex]\[ \frac{x}{3\sqrt{c} \cdot y} = \frac{x \cdot 3\sqrt{y}}{4y} \][/tex]
Since [tex]\( x \)[/tex] and [tex]\( y \)[/tex] are positive, we can multiply both sides by [tex]\( 4y \)[/tex] to eliminate the denominators:
[tex]\[ \frac{4yx}{3\sqrt{c} \cdot y} = x \cdot 3\sqrt{y} \][/tex]
Simplifying, we get:
[tex]\[ \frac{4x}{3\sqrt{c}} = 3x\sqrt{y} \][/tex]
Now, we can divide both sides by [tex]\( x \)[/tex] since [tex]\( x > 0 \)[/tex]:
[tex]\[ \frac{4}{3\sqrt{c}} = 3\sqrt{y} \][/tex]
Next, we square both sides to eliminate the square root:
[tex]\[ \left(\frac{4}{3\sqrt{c}}\right)^2 = (3\sqrt{y})^2 \][/tex]
[tex]\[ \frac{16}{9c} = 9y \][/tex]
Since [tex]\( y > 0 \)[/tex], we can multiply both sides by [tex]\( 9c \)[/tex] to get rid of the denominator:
[tex]\[ 16 = 81cy \][/tex]
Now, we divide both sides by [tex]\( y \)[/tex]:
[tex]\[ \frac{16}{y} = 81c \][/tex]
Finally, we multiply both sides by [tex]\( y \)[/tex] to solve for [tex]\( c \)[/tex]:
[tex]\[ 16 = 81c \][/tex]
[tex]\[ c = \frac{16}{81} \][/tex]
[tex]\[ c = \left(\frac{2^4}{3^4}\right) \][/tex]
[tex]\[ c = \left(\frac{2}{3}\right)^4 \][/tex]
[tex]\[ c = \left(\frac{3}{2}\right)^{-4} \][/tex]
[tex]\[ c = 64 \][/tex]
Therefore, the value of [tex]\( c \)[/tex] that makes the equation true is [tex]\( c = 64 \)[/tex].
39 POINTS!! ALGEBRA. PLEASE HELP, I AM FAILING AND THIS IS DUE IN AN HOUR.
Answer:
Question 10: [tex]f(x)=1/2x-1[/tex] Question 13: [tex]f(-2)=-1[/tex] Question 11: [tex]f(8)=60[/tex]
Step-by-step explanation:
For Question 10:
The functionis in the form of [tex]f(x)[/tex]. We know the slope is [tex]\frac{1}{2}[/tex] (rise 1 run 2)and the y intercept is -1 (where the line goes through the y axis). We can then put the function is slope intercept form ([tex]y=mx+b[/tex]) and we would have [tex]f(x)=1/2x-1[/tex].
For Question 13:
To evaluate the function[tex]f(x)=\frac{3}{2} x-4[/tex] for [tex]f(-2)[/tex] we need to plug -2 into the function as x. [tex]f(-2)=\frac{3}{-2} (-2)-4[/tex]. [tex]\frac{3}{-2}[/tex] times -2 would equal 3 because the negatives cancle out. 3-4 equals -1 so the solution is [tex]f(-2)=-1[/tex].
For question 11:
Same as question 13. plug 8 into x in [tex]f(x)=x^2-4[/tex]. This would be [tex]f(8)=(8)^2-4[/tex]. 8 squared is 64 and 64-4 is 60. Therefore [tex]f(8)=60[/tex].
Luz’ family went out to breakfast on Saturday. The bill was $38.50 and the family wanted to leave a 20 percent tip for the server. Below is Luz’s calculation.
$38.50(0.02) = $0.77
Did Luz calculate the gratuity correctly?
A) No, she should have multiplied by 2.
B) No, she should have multiplied by 0.2.
C) No, she should have divided by 2.
D) Yes, the tip is correct.
No. It would be B because she multiplied by 0.02 which is 1 percent and the tip is 20 percent. 0.2 is 20 percent, so it is B
Answer:
Step-by-step explanation:
38.50 x 20%
38.50 x 0.20= 7.70
Answer: 7.70
solve the equation 6+1/5q=10
Answer:
q = 20
Step-by-step explanation:
1/5q = 4
q = 20
115) Working alone, it takes Sebastian nine hours to
pick forty bushels of apples. Eduardo can pick
the same amount in 11 hours. How long
would it take them if they worked together?
It will take them 20 hours, since the question is asking how long it will take them when working together you add each of their hours together,9+11=20