Mathematics College

simplify -2+5(2+6r)

I’ll mark brainlist

Answers

Answer 1

Answer:

10+30r

Step-by-step explanation:

-2+5(2+6r)

expand 5(2+6r)

5x2=10

(6r)x(5)=30r

so it is 10+30r

then add that to -2

8+30r

Hope that helps :)

Related Questions

find the value of b in rectangle

Answers

be will equal 23. i’ll attach work

What is the value of k if (1, 1) is a solution of 2x + 7y=k?​

Answers

answer: k=9
reasoning: just plug in 1 for x and 1 for y

Donna and Darcy collected newspapers for recycling. Donna collected 5 3/4 pounds of newspaper. Darcy collected 2 1/4 pounds of newspaper. How much newspaper did they collect between them?

Answers

Answer:

8 pounds

Step-by-step explanation:

5 3/4 + 2 1/4 = 7 4/4 = 8

I NEED HELP WORTH THIS there is one more option of 6,6 also

Answers

Answer:

C. (2,4)

Step-by-step explanation:

Need help fast with this

Answers

Answer:

c

Step-by-step explanation:

For the first one the answer would be A. 4x^10y^2. The second one it would be D. 64. The third one would be B. -15m^6. And the fourth one it would be D. m^24.

PLEASE HELP!
F.11
G.12
H.22
J.24

Answers

Answer:

G. 12

Step-by-step explanation:

5/10=(x+5)/(3x+3)

1/2=(x+5)/(3x+3)

Cross multiply

3x+3=2x+10

x=7

AC=x+5=12

Answer: G.12

Hope it’s right

Side 2. What is the sogel
What is the slope between the
points (2, 150) and (5,375)?

Answers

Step One: Identify two points on the line.Step Two: Select one to be (x1, y1) and the other to be (x2, y2).Step Three: Use the slope equation to calculate slope.

Answer:

75

Step-by-step explanation:

Use the slope formula (rise/run):

[tex]\frac{y_{2} - y_{1}}{x_{2} - x_{1}}[/tex]

(375 - 150)/(5-2) = 225/3 = 75

What is the solution to the system of equations graphed below?

y = 4x + 11

y = -2x - 1

Answers

Answer:

Step-by-step explanation:

y = 4x + 11, and y = -2x - 1, so

4x + 11 = -2x - 1

6x + 11  = -1

6x = -12

x = -2

y = 4x+11 = 3

y = 4x + 11

y = -2x - 1

4x + 11 = -2x - 1

4x + 2x = -1 - 11

6x = -12

x = -12/6

x = -2

y = 4x + 11

y = 4(-2) + 11

y = -8 + 11

y=3

Answer is (-2,3).

Find the value of x. Round the length to the nearest tenth.
A. 7.2 ft
B. 6.9 ft
C. 13.9 ft
D. 9.7 ft

Answers

Answer: 7.2ft

I explanation

Part 2! Please help once again! This is confusing me since I've never been good at geo. :((

Answers

Answer:

B is the answer that is incorrect and must be rejected.

Step-by-step explanation:

A trapezoidal shape need not have a line of symmetry to be a trapezoid.

FREE BRAIN LIST NEED HELP ASAP

Answers

Answer:

i am not to sure but i thinks it D and can you help me with mine i really need help i will give brainlest too

Step-by-step explanation:

Answer:

D) 9.8

Step-by-step explanation:

Because you use h^2 = a^2 + b^2

and yiu rearranged the equation for one of the sides to get x = square root of h^2 and b^2 and get 9.79... which rounds to 9.8

Can someone tell me how to do this task please?

Answers

the answers are basically the first 5 numbers in the 14 times tables
so 14,28,42,56,70

The function for the cost of materials to make a hat is f(x)=1/2 x+1 where x is the number of hats. The function for the selling price of those hats is g(f(x)) where g(x)=x+2 find the selling price of 10 hats???​

Answers

Answer:

Step-by-step explanation:

g(f(10)) = g(½·10+1)

= g(6)

= 6+2

= 8

Answer:

the answer is 10

Step-by-step explanation:

Can anyone please help with this? I will love you forever

Answers

Answer:

1 and 2, 3 and 4, 5 and 6, 7 and 8

Step-by-step explanation:

Supplementary angles are angles that add up to 180°. Since 180° would basically be a straight line, those angles are supplementary

2, 3, 6, 7 are the correct answers!Angle 1 + (Any of the angles I mentioned) = 180 degreesPlease let me know if I am wrong.

A line includes the points (4,1) and (8, 2). What is its equation in slope-intercept form?

Write your answer using integers, proper fractions, and improper fractions in simplest form.

Answers

Answer:

[tex]y = \frac{1}{4} x[/tex]  

Step-by-step explanation:

1) First, find the slope of the equation. Use the slope formula [tex]m= \frac{y_2-y_1}{x_2-x_1}[/tex]. Substitute the x and y values of the given points into the formula and solve:

[tex]m = \frac{(2)-(1)}{(8)-(4)} \\m = \frac{2-1}{8-4}\\m = \frac{1}{4}[/tex]

Thus, the slope is [tex]\frac{1}{4}[/tex].

2) Now, use the point-slope formula [tex]y-y_1 = m (x-x_1)[/tex] to write the equation in point-slope form (from there we can convert it to slope-intercept). Substitute values for [tex]m[/tex], [tex]x_1[/tex], and [tex]y_1[/tex].

Since [tex]m[/tex] represents the slope, substitute [tex]\frac{1}{4}[/tex] for it. Since [tex]x_1[/tex] and [tex]y_1[/tex] represent the x and y values of one point the line intersects, choose any of the given points (it doesn't matter which one, the end result will be the same) and substitute its x and y values into the formula as well. (I chose (4,1), as seen below.) Then, isolate y to put the equation in slope-intercept form and find the answer.

[tex]y-(1) = \frac{1}{4} (x-4)\\y-1 = \frac{1}{4} x-1\\y = \frac{1}{4} x+0\\y=\frac{1}{4}x[/tex]

if you increase the length on a parallelogram by 4 cm, what happens to the perimeter?​

Answers

Answer:

It gains 8 cm

Step-by-step explanation:

Answer:

We know that all the sides of a square are equal. Perimeter of a square is 4 times of s side. Perimeter of a square = 4 × length of a side.

Step-by-step explanation:

Subtract the fractions. Simplify if possible. 3/4 - 1/4 - 2/4 =

Answers

This ones really easy. When the denominators are the same, all you have to do is subtract the numerators. So 3-1-2=0. Now put the denominator in: 0/4. But to simplify it, just 0.
Answer is 0

I WILL GVE BRAINLIEST JUST HELP ASAP

Use the Rational Zeros Theorem to write a list of all potential rational zeros
f(x) = 14x3 + 56x2 + 2x - 7

Answers

Answer:

± 1 , ± 1/2 , ± 1/7 , ± 1/14 , ± 7 , ± 7/2

Step-by-step explanation:

Which table shows a linear relationship

Answers

Answer:

B

Step-by-step explanation:

the answer to the problem is B

Julie manages a franchise restaurant and is analyzing the tips left at her location. From corporate informational material, she knows the overall
population mean is $6.85 with a standard deviation of $1.25. Julie has a sample of 180 tips for her franchise. By the central limit theorem, which
interval can Julie be 95% certain that the sample mean will fall within?
OA. $6.76 and $6.94
O B. $6.57 and $7.13
OC. $6.66 and $7.04
OD. $6.83 and $6.87

Answers

Answer:

$6.66 and $7.04

Step-by-step explanation:

I got it right

The $6.76 and $6.94 is the interval Julie can be 95% certain that the sample means will fall within option (A) is correct.

What is the standard deviation?

It is defined as the measure of data disbursement, It gives an idea about how much is the data spread out.

[tex]\rm \sigma = \sqrt{\dfrac{ \sum (x_i-X)}{n}[/tex]

σ is the standard deviation

xi is each value from the data set

X is the mean of the data set

n is the number of observations in the data set.

From the central limit theorem:

σ(x) = σ/√n

The standard deviation σ = $1.25

The sample n = 180

σ(x) = 1.25/√180

σ(x) = 1.25/√1801

σ(x) = 0.0931

The lower limit = 6.85 - 0.0931 = 6.756 = 6.76

The upper limit = 6.85 - 0.0931 = 6.943 = 6.94

Thus, the $6.76 and $6.94 is the interval Julie can be 95% certain that the sample means will fall within option (A) is correct.

Learn more about the standard deviation here:

brainly.com/question/12402189

#SPJ2

I really need this answer please help ​

Answers

Answer:

pretty sure D

Step-by-step explanation:

If I worked 7:30pm and got out at 6am how many hours did I worked

Answers

Step-by-step explanation:

you have worked for 10 and a half hours I.e 10½ hours

Which expressions are equivalent to x + 2y + x + 2?

Choose all answers that apply:

A 2(x+y+1)
B 2x + 4y +4
C None of the above

Answers

Answer:

2x + 2y + 2

Step-by-step explanation:

A is right

A is right because if you plug in the 2 to each the x y and 1 it will give you the same problems

find the sum of the first 10 terms of the following sequence 4, -16, 64​

Answers

Answer:

838860

Step-by-step explanation:

How do you find the sum of the first 10 terms?

To sum up the terms of this arithmetic sequence: a + (a+d) + (a+2d) + (a+3d) +

Example: Add up the first 10 terms of the arithmetic sequence:

a = 1 (the first term)

d = 3 (the "common difference" between terms)

n = 10 (how many terms to add up)

What is the sum of the first 10?

The number series 1, 2, 3, 4 , 9, 10. Therefore, 55 is the sum of positive integers upto 10.

i will give you brainliest whoever answers correct first !

Answers

Answer:

72.8

Step-by-step explanation:

16 is 8 times 2. 36.4 times 2 would be 72.8

if f(x)=2x-1 and g(x)=3x+5, then (f*g)(x) is equal to

Answers

gud evng have a gud day

hope u enjoy ur day

(F*g)(x) means to multiply the two equations.

Multiply each term by each term:

2x-1 * 3x+5 =

2x * 3x + 2x*5 + (-1)*3x + (-1)*5 =

6x^2 + 10x -3x -5 =

6x^2+7x-5

12+16q-q and q=2 evaluate

Answers

Answer:q=0,\:q=-16

Step-by-step explanation:

complete the table by supplying the measure of inscribed angle and its intercepted arc​

Answers

Answer/Step-by-step explanation:

Based on the inscribed angle theorem, any inscribed angle = ½ of its intercepted arc

Thus:

✔️Inscribed angle = 57°

Intercepted arc would be: 2*57 = 114°

✔️Intercepted arc would be: 123°

Inscribed angle = ½(123) = 61.5°

✔️Intercepted arc would be: 46°

Inscribed angle = ½(46) = 23°

✔️Inscribed angle = 69°

Intercepted arc would be: 2*69 = 138°

✔️Intercepted arc would be: 155°

Inscribed angle = ½(155) = 77.5°

1/2 x 1 2/3 write the answer as a fraction or as a whole or mixed number

Answers

Answer:

5/6

Step-by-step explanation:

write the standard form of the quadratic function that has the indicated vertex and whose graph passes through the given point. y=a(x-h)^2+k
vertex:(4,-1) point:(2,3)

Answers

Answer:

y =  ( x − 2 ) ^ 2 + 3

y =   x^2 − 4x + 7

Step-by-step explanation:

y = a ( x − h ) ^ 2 + k

where vertex is (h,k) = (4,-1)

h=4, k=-1

y = a ( x − 4 ) ^ 2 - 1

sub ( 2,3 )

3 = a (2 - 4)^2 - 1

a=1

y = 1 ( x − 2 ) ^ 2 + 3

y =  ( x^2 − 4x + 4 )  + 3

y =   x^2 − 4x + 7

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