Answers
Answer: The answer is A
Step-by-step explanation: You use substitution because it says that 4-t is equal to r.
Related Questions
use the law of cosines to find each missing side
Answers
Answer:
29.03 units
Step-by-step explanation:
x^2 = 10^2 + 19^2 - 2*19*20 cos 122
= 100 + 361 - 720 * -0.52992
= 842.54
x = 29.03
PLS HELP!!!!!! NOW PLS!!!!
Given that the points (-1, 5) and (2, 1) are vertices of a rectangle with sides parallel to the axes, how much longer is the length than the width?
A. 1 Unit
B. 2 Units
C. 3 Units
D. 4 Units
Answers
Answer:
The right answer is 1 unit or A
Step-by-step explanation:
i’m in algebra 2 and it’s long division please help
Answers
[tex]\dfrac{5x^4+10x^3-7x+1}{x+2}=(5x^4+10x^3-7x+1):(x+2)[/tex]
[tex]_+\begin{matrix}(5x^4&+&10x^3&-&7x&+&1)&:&(x+2)&=5x^3-7\\-5x^4&-&10x^3\end{matrix}\\\overline{_+\begin{matrix}\ \ =&&&&=&\ \ \ -&7x&+&1\\&&&&&&7x&+&14\end{matrix}}\\\overline{\qquad\qquad\qquad\qquad\qquad\qquad\qquad\ 15}[/tex]
[tex]\dfrac{5x^4+10x^3-7x+1}{x+2}=(5x^4+10x^3-7x+1):(x+2)=5x^3-7+R(15)\\\\5x^4+10x^3-7x+1=(x+2)(5x^3-7)+15[/tex]
Final answer:
Long division is a method used to divide two polynomials in algebra. It involves arranging the dividend and divisor, determining the term of the quotient, subtracting and repeating until there are no more terms left to bring down.
Explanation:
In algebra, long division is a method used to divide two polynomials. It is especially useful when the dividend (the polynomial being divided) has a higher degree than the divisor (the polynomial dividing the dividend).
Here's a step-by-step explanation:
Arrange the dividend and divisor in descending order.Determine the term of the quotient by dividing the leading terms of the dividend and divisor.Multiply the entire divisor by the term of the quotient and subtract it from the dividend.Repeat steps 2 and 3 until there are no more terms left to bring down.The result is the quotient and any leftover terms are the remainder.Let me know if you need further assistance or if there's anything else I can help you with!
Drag and drop the correct answer into each box to complete the proof. parallelogram K L M N where K N is parallel to L M and K L is parallel to M N Given: Parallelogram KLMN Prove: ∠N≅∠L and ∠M≅∠K
Answers
Answer:
Opposite angles of a parallelogram are congruent.
Step-by-step explanation:
Given:
KLMN is a parallelogram.
KN ║ LM and KL ║MN.
To prove:
∠N ≅ ∠L
∠M ≅ ∠K
Proof:
∠N ≅ ∠L since the opposite angles of a parallelogram are congruent.
∠M ≅ ∠K since the opposite angles of a parallelogram are congruent.
Answer: Parallelogram KLMN Given
KL¯¯¯¯¯∥NM¯¯¯¯¯¯¯ and Kn---------llLM Definition of parallelogram
m∠K+m∠N=180°
m∠L+m∠M=180°
m∠K+m∠L=180° Same-Side Interior Angles Theorem
m∠K+m∠N=m∠K+m∠L
m∠L+m∠M=m∠K+m∠L Substitution Property of Equality
m∠N=m∠L
m∠M=m∠K Subtraction Property of Equality
∠N≅∠L
and ∠M≅∠K
Angle Congruence Postulate
Step-by-step explanation:
I took the test and got a 100
what is the measure of A, in degrees?
Answers
Answer:
B
Step-by-step explanation:
Since AB = AC = 8 then the triangle is isosceles and
∠C = ∠B = 30° ( base angles of an isosceles triangle )
The sum of the 3 angles in a triangle = 180°
Subtract the sum of the base angles from 180, hence
∠A = 180° - (30 + 30)° = 180° - 60° = 120° → B
Solve for v.
.
Simplify your answer as much as possible.
Answers
Answer:
v = 9
Step-by-step explanation:
Use the method of cross- multiplying
[tex]\frac{a}{b}[/tex] = [tex]\frac{c}{d}[/tex] ⇒ ad = bc
8v = 12 × 6
8v = 72 ( divide both sides by 8 )
v = 9
Answer:
[tex]v=9[/tex]
Step-by-step explanation:
The given equation is
[tex]\frac{v}{12}=\frac{6}{8}[/tex].
We multiply both sides of the equation by 12 to obtain,
[tex]12\times \frac{v}{12}=\frac{6}{8}\times 12[/tex].
This implies that;
[tex]v=\frac{3}{4} \times 12[/tex]
This gives
[tex]v=\frac{3}{1} \times 3[/tex]
[tex]v=3\times 3[/tex]
[tex]v=9[/tex]
You earn $8.60/hr. You work 32 hr/wk and your deductions are FICA (7.65%), federal tax withholding (10.6%), and state tax withholding (8.25%). How much do you have direct-deposited bi-weekly?
Answers
The amount that is direct-deposited bi-weekly is 404.30.
To calculate the bi-weekly direct deposit amount, we need to follow these steps:
1. Calculate the gross pay for a week:
Gross pay per week = Hourly wage * Hours worked per week
Gross pay per week = $8.60/hr * 32 hr/wk
Gross pay per week = $275.20
2. Calculate the total deductions per week:
Total deductions rate = FICA rate + federal tax rate + state tax rate
Total deductions rate = 7.65% + 10.6% + 8.25%
Total deductions rate = 26.5%
Total deductions per week = Gross pay per week * Total deductions rate
Total deductions per week = $275.20 * 26.5%
Total deductions per week = $73.049
3. Calculate the net pay for a week:
Net pay per week = Gross pay per week - Total deductions per week
Net pay per week = $275.20 - $73.049
Net pay per week = $202.151
4. Calculate the bi-weekly net pay:
Bi-weekly net pay = Net pay per week* 2
Bi-weekly net pay = $202.151 * 2
Bi-weekly net pay = $404.302
Since the net pay is calculated to the nearest cent, we can round the bi-weekly net pay to the nearest cent as well:
Bi-weekly net pay (rounded) = $404.30
Therefore, the amount that is direct-deposited bi-weekly is 404.30.
The answer is: $404.30.
70% of a number is what fraction
Answers
It's going to be 7/10
7 1/3 ∙ x = 1.6 ÷ 6/11
x = __
Please Help!
Answers
Answer:
x= 0.4
Step-by-step explanation:
We need to solve and find the value of x
7 1/3x = 1.6 ÷ 6/11
Converting mixed fraction into improper fraction
22/3 x = 1.6 ÷ 6/11
Converting ÷ sign by X and reciprocating the term
22/3 x = 1.6 * 11/6
Now divide both sides by 3/22
x = 1.6 * 11/6 * 3/22
x = 1.6 * 1/2 * 1/2
x = 1.6/4
x = 0.4
S0, x= 0.4
In addition to an $80 bonus Joan earned eight dollars per hour working last week Joans total earnings last week or $240 how many total hours did she work last week
Answers
Answer:
20 hours
hope it helps
Step-by-step explanation:
total earnings was $240 but to find how much he made working you first have to deduct the $80 bonus
240 - 80 = 160
so he made $160 working now to find out how many hours worked you have to divide by 8 because he got paid $8.00 an hour
160 ÷ 8 = 20
Answer:
20hrs
Step-by-step explanation:
We need to find out how many hours she worked last week.
The bonus added $80 to the money she got from her hours worked so lets take that away:
240-80=160
Since she gets $8/hr we should divide 160 by 8
160÷8=20
What is the equation of the graph below?
Answers
Answer:
[tex]y=cos(x+\pi )[/tex]
Step-by-step explanation:
From the graph, we can see that y = -1 when x = 0.
So to check whether which of the given options is the equation of the given graph, we will set our calculator to the radian mode and then plug the value of x as 0.
1. y = cos(x + pi/2) = cos(0 + pi/2) = 0
2. y = cos(x+2pi) = cos(0+2pi) = 1
3. y = cos(x+pi/3) = cos(0+pi/3) = 1/2 = 0.5
4. y = cos(x+pi) = cos(0+pi) = -1
Therefore, the equation of this graph is y = cos(x+pi) = cos(0+pi) = -1.
Combine the like terms to create an equivalent expression. 3n+7−2
Answers
Answer:
3n+5
Step-by-step explanation:
The infinite geometric sum formula can be used to write 0.126126126...as a fraction. What is the numerator of this reduced fraction?
A. 7
B.14
C.42
D.126
Answers
Answer:
B. 14
Step-by-step explanation:
The sum of infinite geometric series is given by
[tex]\frac{a}{1-r}[/tex]
0.126126126... = [tex]\frac{126}{1000}+\frac{126}{1000000}+\frac{126}{1000000000}[/tex]
Here a =126/1000, r= 1/1000
0.126126126... = [tex]\frac{126/1000}{1-1/1000}[/tex] =126/999 = 14/111
∴ 0.126126126... = 14/111
So, the numerator of the reduced fraction is 14.
Answer:
B. 14
Step-by-step explanation:
A lot is in the shape of a trapezoid. The sum of the bases is 280 feet. If the area of the lot is 8,400 square feet, what is the distance across the lot, i.e., the altitude of the figure? The altitude of the trapezoid is feet.
Answers
Answer:
The altitude of the trapezoid is 60 feet.
Step-by-step explanation:
Trapezoid
Sum of the bases: B+b=280 feet
Area of the trapezoid: A=8,400 feet^2
Altitude of the trapezoid: h=?
The formula to calculate the area of a Trapezoid is:
A = (1/2) (B+b) h
Replacing the given values:
8,400 feet^2 = (1/2) (280 feet) h
(1/2) (280 feet) = (140 feet)
8,400 feet^2 = (140 feet) h
Solving for h: Dividing both sides of the equation by 140 feet:
8,400 feet^2 / (140 feet) = (140 feet) h / (140 feet)
60 feet = h
h = 60 feet
Answer: The altitude of the trapezoid is 60 feet.
Answer:
60
Step-by-step explanation:
There are 90 students in Grade 5, and 10% of them were absent today.In Grade 6, 15% of the 80 students were absent today.What was the total number of students in the two grades who were present today?
Answers
Answer:
21 students
Step-by-step explanation:
90 x .10 = 9
80 x .15 = 12
9 + 12 = 21 students
can someone help me and explain how you did it?
Answers
Answer:
Step-by-step explanation: To find a y intercept you must find what y is when x is 0 so because it already tells you on the table the y intercept is 4. To find slope take 2 x intercepts and 2 y intercepts. For this well take the 0,4 and 5,1. The take the y from both pairs and minus them so it will look like 4 minus 1. Then draw a line under the equation under this line do the same thing but with the x's from both pairs so 0-5 then you will get as a result of both -3/5 as your slope.
Answer:
slope: -3/5
y-intercept: (0, 4)
slope-intercept form: y = -3/5x + 4
Step-by-step explanation:
Finding the slopeTo find the slope of this line, you would take two points from the table and substitute their coordinates into the slope formula.
Slope formula: [tex]\frac{y_2-y_1}{x_2-x_1}[/tex]
I'm going to use the points (0, 4) and (5, 1). You can really use any point from the table. Substitute these points into the formula to find the slope.
(0, 4), (5, 1) → [tex]\frac{1-4}{5-0} \rightarrow \frac{-3}{5}[/tex]
This means the slope of the line is -3/5.
Finding the y-interceptThe y-intercept will always have the value of x be 0 (so the point is solely on the y-axis), so by looking at the table we can see that the y-intercept is at (0, 4).
Finding the slope-intercept formSince we have the slope and a point of the line, we must use point-slope form to find the equation of the line in slope-intercept form. Substitute in the point (0, 4) --you could use any point from the table-- and the slope -3/5 into the point-slope form equation.
point-slope form: y - y1 = m(x - x1) --you'll be substituting the point coordinates and slope into y1, x1, and m.
y - (4) = -3/5(x - (0))
Simplify.
y - 4 = -3/5x
Add 4 to both sides.
y = -3/5x + 4 is the equation of the line in slope-intercept form (you have both the slope and the y-intercept in this form).
Find the value of y. Please help
Answers
if the ∡E = ∡F = 90°, that means for that quadrilateral of BEGF, the other angles are ∡B = ∡G = 90°, which means is a square, meaning all its sides are equal, therefore
[tex]\bf y + 5 = 3y\implies 5=2y\implies \cfrac{5}{2}=y\implies 2\frac{1}{2}=y[/tex]
On a coordinate graph the point in which the x-axis and the y-axis cross is called the
Answers
Rob spent 25\%25% more time on his research project than he had planned. He spent an extra hh hours on the project.
Which of the following expressions could represent the number of hours Rob actually spent on the project?
Answers
Answer: 5h represents the number of hours Rob actually spent on the project.
Step-by-step explanation:
Let Rob planned that he will spend x hours in his project.
According to the question,
He spent 25% more time on his project than he planned.
That is, his actual time = x + 25% of x = 125% of x
Again according to the question,
He spent an extra h hours on his project.
That is, 25% of x = h
[tex]\frac{25\times x}{100} = h[/tex]
[tex]x=\frac{100h}{25}[/tex]
x = 4h
Thus, his actual time = 125% of x = 125% of 4h = [tex]\frac{125\times 4h}{100}[/tex] = 5h
Which is the required expression.
Answer:
5h and (h/0.25)1.25
Step-by-step explanation:
This means he planned to spend \dfrac{\maroonD{h}}{\greenD{25\%}}\cdot100\%
25%
h
⋅100%start fraction, start color maroonD, h, end color maroonD, divided by, start color greenD, 25, percent, end color greenD, end fraction, dot, 100, percent hours on the research project.
Hint #33 / 6
Because 25\%25%25, percent means 252525 per hundred, we can write it in equivalent forms.
\begin{aligned} 25\%&=\dfrac{25}{100}\\\\ &=0.25 \end{aligned}
25%
=
100
25
=0.25
an aquarium tank is 3 feet long, 1 foot wide, and 2 feet high. how many gallons of water would it take to fill the tank two-thirds full?
Answers
Answer: the answer is 6ft
Step-by-step explanation:
3 times 1 times 2 = 6ft
Number of gallons of water would it take to fill the tank two-thirds full is,
⇒ 30 gallons
What is Multiplication?To multiply means to add a number to itself a particular number of times. Multiplication can be viewed as a process of repeated addition.
We have to given that;
An aquarium tank is 3 feet long, 1 foot wide, and 2 feet high.
Hence, Volume of tank is,
⇒ V = 3 x 1 x 2
⇒ V = 6 feet³
Hence, Number of gallons of water would it take to fill the tank two-thirds full is,
⇒ 2/3 of 6
⇒ 4 feet³
⇒ 4 × 7.5
⇒ 30 gallons
Thus, Number of gallons of water would it take to fill the tank two-thirds full is,
⇒ 30 gallons
Learn more about the multiplication visit:
https://brainly.com/question/10873737
#SPJ2
If y = 2x − 8, what is the value of x when y = 0?
Answers
8 = 2x
4 = x
which ratio forms a proportion with 18/27
Answers
Answer:
[tex]\frac{2}{3}[/tex]
Step-by-step explanation:
The given ratio is [tex]\frac{18}{27}[/tex]
9 is the common factor of 18 and 27
divide numerator and denominator by 9
[tex]\frac{18/9}{27/9} =\frac{2}{3}[/tex]
hence [tex]\frac{2}{3}[/tex] is proportion with [tex]\frac{18}{27}[/tex]
A building is casting a 140 foot shadow at the same time a nearby post is casting a 10 ft shadow. If the post is 18 feet tall how tall is the building
Answers
Answer: 252 feet tall
Step-by-step explanation:
1) make a proportion
x/18=140/10
2)solve
10x=140*18
x=140*18/10
x=14*18
x=252
3) Answer
The building is 252 feet tall
Answer fast!!!!!!!!!!!
Answers
.because the object is in axonometry, and the front view will be a square
4. FLOWERS Bethany placed a bouquet of roses in a vase full of water. Each day she recorded how much water had evaporated from the vase before refilling it. The results are shown in the table below. Over the course of five days how much water had evaporated? Use mental math to find your answer.
Answers
Answer:
A x 5
Step-by-step explanation:
Answer:
take all evaporation numbers and add them together to get the answer u r looking for
Step-by-step explanation:
I need help!!!!
Can someone help me
Answers
Answer:
D
Step-by-step explanation:
note that the values in the domain map to the values in the domain as
- 1 → 2 ( that is 1 + 3 = 2 )
3 → 6 ( that is 3 + 3 = 6 )
5 → 8 ( that is 5 + 3 = 8 )
In each case 3 is added to the value in the domain(x) to obtain the value in the range ( y = f(x) )
Hence f(x) = x + 3 → D
A regular dodecagon has 12 sides. What is the smallest angle of rotation about its center that carries a dodecagon onto itself?
Answers
Answer:
30°
Step-by-step explanation:
No. of sides in dodecagon = 12
No. of angles = 12
Since its regular, all sides and all angles are equal.
total rotational angle = 360°
since no. of angles = 12
and all angles are equal,
rotational angle at which, it will co - incide with itself = [tex]\frac{360}{12}[/tex]
= 30°
A regular dodecagon will be onto itself it is rotated about the central angle 30°.
Answer: 30°
Step-by-step explanation:
The area of a rectangular dog pen is 8/1/2 square feet. If the width is 3/2/5 feet what is the length in feet
Answers
Answer:
l = 2 1/2 ft
Step-by-step explanation:
The formula for A is l*w for a rectangular length
A= lw
Putting in what we know
8 1/2 = l * 3 2/5
I will change mixed numbers to improper fractions
8 1/2 = (2*8+1)/2 = 17/2
3 2/5 = (5*3+2)/5 = 17/5
17/2 = l*17/5
Multiply both sides by 5/17 to isolate l
5/17* 17/2 = l* 17/5 * 5/17
5/2 = l
Changing this back to a mixed number
2 1/2 = l
please view my question down below
Answers
[tex]\frac{422}{8}=52.75mph[/tex]
A.
[tex]average=\dfrac{distance}{time}\\\\\text{We have}\\\\distance=422\ miles\\\\time=8\ hours.\\\\\text{Substitute:}\\\\\boxed{x=\dfrac{422\ miles}{8\ hours}=52.75\ mph}[/tex]
what numbers do I use for 45678910 please help
Answers
Answer:
4) 80 5) 96 6) 50 7) 28 8) 17 9) 14 10) 58
Step-by-step explanation:
4) 41+39 5) 28+32+46 6) 13+37 7) 45-17 8) 39-22 9) 31-17 10) 18+40