Plzzzzz helppp me plzzz
Answer:
X=-2
Step-by-step explanation:
You start with adding 7 to the side with -9 to get the (x) alone. Then you have x=-2.
Answer:
x = -2
Adding two negative numbers is easy: you're just adding two "negative" arrows, so it's just like "regular" addition, but in the opposite direction. For instance, 4 + 6 = 10, and –4 – 6 = –4 + (–6) = –10.
what is 3(4m + 2)
A. 12m + 2
B. 12m + 6
C. 18m
D. 14m
Answer:
B. 12m + 6
Step-by-step explanation:
Just distribute the 3 to both 4m and 2.
Answer:
B. 12m + 6
Step-by-step explanation:
Because there is a three, we must do three times both of the terms:
(3 x 4m) + (3 x 2)
When you do it, we get:
12m + 6
We cannot simplify it any further, so 12m + 6 is out final answer.
Hope this helped :]
Which polygon will tessellate the plane?
Answer:
Equilateral triangles, squares and regular hexagons are the only regular polygons that will tessellate. Therefore, there are only three regular tessellations.
Step-by-step explanation:
In a volley ball game, Steve served the ball over the net 17 out of 25 times. What percent did he not make over the net?
Answer:
32%
Step-by-step explanation:
25 - 17 = 8
8/25 x 100% = 32%
Answer:
32
Step-by-step explanation:
ed 2020
Place the number 62.5 and 62.35 in the number line
Answer:
62.5 would go 5 lines out and 23.35 would go in the middle of the third and fourth line
Step-by-step explanation:
Helppppppp please, all math lovers I'm calling for you
Answer:
Dive by n square root two, also option one.
Step-by-step explanation:
The first step to any algebra equation is to isolate the variable and you do that by divide square root 2 since it cancels out on the left side and now n is alone.
Hoped that helped :)
i only need to know the first one
Answer:
x = 9
Step-by-step explanation:
2/3x +5 = -2/6x +14
Simplify
2/3x +5 = -1/3x +14
Add 1/3x to each side
2/3x + 1/3x +5 = -1/3x +1/3x +14
3/3x +5 = 14
x+5 = 14
Subtract 5 from each side
x+5-5=14-5
x = 9
What is the solution to 2x-8 <12?
0x<2
x <8
X <10
x <40
Answer:
c.x<10Step-by-step explanation:
Step 1: Add 8 to both sides.
2x−8+8<12+8
2x<20
Step 2: Divide both sides by 2.
2x/2<20/2
x<10
Hope this helps!Question 6:
Factor 5x4 – 20x3 + 20x2
completely.
The factors of the given expression are 5x², (x - 2), and (x - 2).
What is Polynomial?A polynomial is a mathematical equation that solely uses the operations addition, subtraction, multiplication, and non-negative integer exponentiation of variables. Variables are sometimes known as indeterminate in mathematics. Majorly used polynomials are binomial and trinomial.
It is given that the polynomial expression 5x⁴ – 20x³ + 20x²
It is required to find its factor.
We have a polynomial expression let's denote it with f(x)
f(x) = 5x⁴ – 20x³ + 20x²
taking 5x² common
f(x) = (x²-4x +4) 5x²
from the formula (a -b)² = a² +b² -2ab
f(x) = (x -2)²*5x²
Thus, the factors of the given expression are 5x², (x - 2), and (x - 2).
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What quadrilaterals can you draw that have two sides with length 7 cm and two sides with length
4 cm?
Which of these quadrilaterals can have two sides with length 7 cm and two sides with length 4 cm?
Select all that apply.
O A. Square
B. Rectangle
C. Trapezoid
OD. Parallelogram
Final answer:
Quadrilaterals that can have two sides of length 7 cm and two of length 4 cm are a rectangle and a parallelogram; a square cannot, and a trapezoid is not certain.
Explanation:
The type of quadrilaterals that can be drawn with two sides of length 7 cm and two sides of length 4 cm are a rectangle and a parallelogram. A square cannot have sides of different lengths, so it wouldn't fit the requirement. A trapezoid could possibly have these side lengths, but only if the non-parallel sides are of different lengths, which isn't stated in the question.
The reason for choosing a rectangle is because it has four right angles and the opposite sides are equal, allowing for two sides to be 7 cm and the other two to be 4 cm. A parallelogram can also have sides of these lengths as long as the opposite sides are equal, and the angles are not restricted to 90 degrees like in a rectangle.
I need this ASAP please
Answer:
It's the first answer. Remember, equations like that are always y=mx+b. Y is whatever y value, m is the slope, x whatever the x value is. b is the y intercept (the y value when x equals 0). In this case, you can tell that 1/2 and 2 are the m, m is slope, so the first option should be correct.
square pyramide has base edges of 48cm and a slant height of 26cm, what is the volume
Answer:
C)
Step-by-step explanation:
Given: Base edge of square pyramid a= 48 cm
Slant height square pyramid l =26 cm
Let h be the height of the right pyramid
Thus,
The volume of square pyramid
Thus C is the right option.The volume of square pyramid=
hope this helped plz let me know :)
what does y and x equal?
Answer:
(C)
Step-by-step explanation:
I solved it by graphing.
[see picture]
Mrs. Hughes needs to rent tables for the 325 guests who will attend her
daughter's wedding reception. If Mrs. Hughes seats 8 guests at each table, how
many tables will be completely full? HINT: Is there a remainder in this problem? If
so, solve the division problem and then go back and read the question again
carefully. *
Answer:
40
Step-by-step explanation:
To solve this, divide the number of guests by the number of guests that can be seated at each table.
325/8 = 40 with a reminder of 5
This means that 40 tables will be completely full while one table has only 5 people
Maria wants to buy a new bicycle that costs $129.89. She has saved $78 of her babysitting money. Maria’s grandfather gave her $25 for her birthday. She finds $13.73 in her piggy bank. She expects to make another $12 for babysitting this weekend. Approximately, how much money will Maria have after she babysits this weekend?
Answer:
$128.73
Step-by-step explanation:
78 + 25 + 13.73 + 12= 128.73
You invest $200 in a savings account. The account pays 3% interest compounded monthly. How
much money is in the account after 8 years?
Final answer:
To find out how much money will be in the account after 8 years with $200 initial investment and a 3% interest compounded monthly, use the compound interest formula A = P(1 + r/n)^(nt). The calculation results in approximately $256.67 in the account after 8 years.
Explanation:
To calculate how much money will be in the savings account after 8 years with an initial investment of $200 and a 3% interest rate compounded monthly, we can use the formula for compound interest:
A = P(1 + r/n)^(nt)
Where:
A is the amount of money accumulated after n years, including interest.P is the principal amount (the initial amount of money).r is the annual interest rate (decimal).n is the number of times that interest is compounded per year.t is the time the money is invested for, in years.In this case, P = $200, r = 0.03, n = 12 (since interest is compounded monthly), and t = 8.
The formula becomes:
A = 200(1 + 0.03/12)^(12*8)
Calculating this we get:
A = 200(1 + 0.0025)^(96)
A = 200(1.0025)^96
A = 200(1.283362)
A ≈ $256.67
After 8 years, the savings account will have approximately $256.67.
Find the mean:
8, 10, 10, 10, 6, 7, 8
Answer:
8.43
Step-by-step explanation:
8 + 10 + 10 + 10 + 6 + 7 + 8 = 59
59/7 = 8.43 (or keep as improper fraction)
Dallas wants to know what elective subjects the students at his school like best. He surveys students
who are leaving band dass. Is this a random or biased sample, and why?
It is a (select) sample because
(select)
Answer:
It is a biased because he only asked the people who left band class. He wanted the people of band class to represent his entire school's opinion. Besides, the students of that class are limited number. If he randomly asked the question, the people chosen would be of any gender, class, etc. and its all random.
Identify all solutions for a triangle with A = 38 degrees b = 10, and a= 8. Round to the nearest tenth.
Answer:
A = 38°
B = 50.32°
C = 91.68°
a = 8
b = 10
c = 12.77
Step-by-step explanation:
The first thing is to find the angle B, like this:
sin B = b * sin A / a = 10 * sin (38 °) / 8
sin B = 0.77
B = arc sin (0.77)
B = 50.32 °
For angle C, it would be:
C = 180 - 38 - 50.32
C = 91.68 °
Side c, we calculate it like this:
c = a * sin C / sin A = 8 * sin (91.68 °) / sin (38 °)
c = 12.77
please help answer this
Answer:
b
Step-by-step explanation:
Darius flipped a coin 500 times and it landed heads up 300 times. What is the relative frequency of the coin landing heads up based on the results of this experiment?
Group of answer choices
4%
6%
40%
60%
Answer:
Answer is D
500 times, lets divide that by 100. So... 3 out of 5 times is 60%
Step-by-step explanation:
Which student solves and explains the equation correctly? Will choose brainliest.
Answer:
Jerry is correct
Step-by-step explanation:
[tex]8^{x} = 512[/tex]
this equation is asking 8 to what power is 512
Emma said the solution is x=3. Her explanation is 8 x 3 which would equal 24. This is not the correct answer.
Jerry's solution is x = 3. His explanation is 8 x 8 x 8 which would equal 512. This is the correct answer.
Mel's solution is x = 8. Her explanation is 8 x 3 which equals 24. This is not the correct answer.
Victoria's solution is x = 8. Her explanation is 8 x 8 x 8 which would equal 512. However, her explanation is correct, her solution is not. [tex]8^{8} = 16777216[/tex]. That is what her solution is saying.
Nala is designing a piece of jewelry made of wire that has the shape shown below. It consists of two sides of a square and three-quarters of a circle. To the nearest tenth, what is the length of wire needed? Note that no wire is needed along the dashed line segment. (the curved part is three fourths the circumference)
(1) 14.1
(2) 18.4
(3) 20.1
(4) 24.8
Answer:
Option (3) is the answer.
Step-by-step explanation:
Given question is incomplete; find the complete question in the attachment.
Jewelry made by Nala is a composite figure having three fourth of a circle and two sides of a square.
Perimeter of the whole figure will give us the length of wire needed to design the jewelry.
Perimeter of three fourth of a circle P(circle) = [tex]\frac{3}{4}(2\pi r)[/tex]
Here, r = radius
P(circle) = [tex]\frac{3\pi (3)}{2}[/tex]
= 14.14 cm
Perimeter of the complete (composite) figure = 14.14 + 3 + 3
= 20.13
≈ 20.1 cm
Therefore, Option (3) is the answer.
I have no idea just please helppp ☺️
Answer:
x=0
Step-by-step explanation:
2x-6+9=3x+3+x
2x+3=4x+3
2x=4x
2x-4x=0
-2x=0
x=0
Miss Burns is making cookies the recipe calls for 3 1/2 cups of flour and 3/4 cup of sugar if she wants to double the recipe how much flour and sugar does Miss Burns need
Answer:
Ms. Burns would need 7 cups of flour and 1 1/2 cups of sugar.
Step-by-step explanation:
I MULTIPLIED each fraction by 2.
Answer: 7 cups of flour 1 1/2 cups of sugar
Step-by-step explanation:
Glad to help
Compare Loan Terms
So you want to finance a car for $4,840. Let's say we offer you a 4.5%
interest rate on a 2-year loan and 6% on a 5-year loan. Enter this info
into the calculator to see your monthly and total cost by loan term.
Financing Amount
$4,840
Interest Rate on 2-Year Loan
$_____
Interest Rate on 5-Year Loan
$______
Answer:
Step-by-step explanation:
the answer is basically 4.5% and the 6%
Answer:
it's the 2 year loan is 4.5%
Please help! 30 points!
Rectangle ABCD is graphed in the coordinate plane. The following are the vertices of the rectangle: A(-2,2), B(6,2), C(6,3), D(-2,3),
What is the area of rectangle ABCD
[Blank] Square Units
Answer:
The answer is eight.
All you have to do is graph the points and count how many boxes are inside the points.
Answer:
The Answer is 8.
Step-by-step explanation:
When you graph the plots on a graph you might look at the graph and say this looks complicated but if you count the boxes in the shape, you will get your answer as 8 square units.
5. If a student is chosen at random from
those who participated in the survey,
what is the probability that the student is
male, given that the student participates
in sports?
Answer choices:
0.379
0.42
0.524
0.58
Answer:
0.524
Step-by-step explanation:
The probability that the chosen student is a male is 0.524 .
Given,
Number of male students who participated in sports = 110
Number of female students who participated in sports = 100
Number of male students who did not participated in sports = 180
Number of female students who did not participated in sports = 210
Now,
The probability that the male students is chosen will be given by,
P(MALE) = 110/210
P(MALE) = 55/105
P(MALE) = 11/21
P(MALE) = 0.524
Thus the probability of chosing a male student who participates in the sport is 0.524 .
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Bacteria grows at an alarming rate of 75% each hour. How many bacteria will there be by the end of the day?
A. 680,634
B. 16,335,198
C. 68,633
D. 680,633
Hi.
This is a geometric sequence with the rational of the sequence : 1.75
If you start with 1,
Then U0 = 1
and U24 = 1*1.75^24≈ 680 634
HELP WILL GIVE BRAINLIEST
Which is the equation of an ellipse with directrices at y = ±2 and foci at (0, 1) and (0, −1)?
(possible answers shown in image)
Answer:
[tex]\frac{x^{2} }{1} +\frac{y^{2} }{2}=1[/tex]
Step-by-step explanation:
The directrices of an ellipse are defined by
[tex]x=(+-)\frac{a}{e}[/tex]
Where [tex]a >b[/tex], and [tex]e[/tex] is the eccentricity defined by [tex]e=\frac{c}{a}[/tex]
So, in the first choice, we have the equation
[tex]\frac{x^{2} }{4}+\frac{y^{2} }{1} =1[/tex]
Where [tex]a^{2}=4[/tex] and [tex]b^{2}=1[/tex], which means [tex]a=2[/tex] and [tex]b=1[/tex].
In an ellipse, we have the relation
[tex]c^{2}=a^{2}-b^{2}[/tex]
Replacing values, we have
[tex]c^{2} =4-1=3\\c=\sqrt{3}[/tex]
So, the eccentricity is [tex]e=\frac{\sqrt{3} }{2}[/tex] and the directrices are [tex]x=(+-)\frac{2}{\sqrt{3} }[/tex], which means the first choice is not the right answer. In other words, the right answer is the second choice, because third and fourth choices don't represent an ellipse, both fractions must be positive in that case.
Therefore, the right answer is
[tex]\frac{x^{2} }{1} +\frac{y^{2} }{2}=1[/tex]
Answer:
OPTION B IS CORRECT
Step-by-step explanation:
FOR A VERTICAL ELLIPSE a IS ALWAYS LARGER THAN b AND a is always right under y-squared in the equation.