1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Alexandra [31]
2 years ago
13

Help me with this please

Mathematics
1 answer:
meriva2 years ago
6 0

Answer:

1) E

2) D

3) G

4) I

Step-by-step explanation:

1)

P = 2(l + w)

P = 2(3a + 3 + 8a - 12)

P = 2(11a - 9)

P = 22a - 18

2)

P = 22a - 18

P = 22(3) - 18

P = 66 - 18

P = 48

3)

P = a + b + c

P = 3b + 7 + 7b - 2 + 7b - 2

P = 17b + 3

4)

P = 17b + 3

P = 17(6) + 3

P = 102 + 3

P = 105

You might be interested in
3. A local store is offering 20% off regular pr
Paladinen [302]
160$ during the sale!!
6 0
2 years ago
A set of n = 15 pairs of X and Y scores has SSX = 10, SSY = 40, and SP = 30. What is the slope for the regression equation for p
Mumz [18]

Answer:

3

Step-by-step explanation:

We have given SS_X=10, SS_Y=40 and SP =30

We have to find the slope for regression on Y from X

The slope on Y from X is given by b_{yx}=\frac{SP}{SS_X}

As we have given the value of SP =30 and value of SS_X=10

So slope for regression will be b_{yx}=\frac{30}{10}=3

3 0
3 years ago
What is the arc length if
dem82 [27]

Answer:

A. 8π / 3

Step-by-step explanation:

6 0
3 years ago
What is the axis of symmetry for f(x) = 2x − 8x + 8? (1 point) Select one: a. x = −2 b. x = −3 c. x = 3 d. x = 2
ExtremeBDS [4]

Answer:

x=2

Step-by-step explanation:

F(x) = 2x^2 - 8x +8

Axis of symmetry lies at the x coordinate of vertex

To find x coordinate of vertex use formula

x=\frac{-b}{2a}

from the given f(x) , a= 2 and b = -8

Plug in all the values

x=\frac{-(-8)}{2(2)}

x=\frac{8}{4}=2

x=2

So the axis of symmetry at x=2

6 0
3 years ago
Why is ½ multiplied in the formula for area of a triangle and trapezoid?
zloy xaker [14]

Step-by-step explanation:

you can guess area of whole is l×b so area of half ie area of triangle =1/2 lxb

7 0
3 years ago
Other questions:
  • Luke has a string that is 6 inches long and a string that is 11 inches long .How many inches of string does Luke have?Draw a dia
    9·1 answer
  • A store discounts a stereo from 130 to 87.50. What is the percent discount?
    14·1 answer
  • (a) An angle measures 27°. What is the measure of its complement?
    9·1 answer
  • Solve for perimeter and area of rectangle
    12·1 answer
  • In 2000, the number of students enrolled at Arlington Country Day School was 823 students. In 2010, the population was approxima
    12·2 answers
  • you are considering 2 jobs. one job pays $250 per week, plus 4.5% commission on all sales. The second job pays $1,800 per month
    12·1 answer
  • M2 = 272 182 – 2(27)(18)cos(28°) m2 = 729 324 – (972)cos(28°) m2 = 1053 – (972)cos(28°) to the nearest whole number, the value o
    8·1 answer
  • How do you write 592% as a fraction, mixed number, or whole number in simplest form?
    13·1 answer
  • PLEASE HELP WILL GIVE BRAINLIEST!!!!!!!!!!!!!!!!!!!!!!!!
    8·1 answer
  • Two numerical patterns are shown below:
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!