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forsale [732]
3 years ago
8

A prism is created using 2 pentagons as bases. The apothem of each pentagon 2.8 centimeters

Mathematics
2 answers:
makvit [3.9K]3 years ago
6 0

Answer:

I think is B, 14^2+7x

Step-by-step explanation:

maksim [4K]3 years ago
4 0
21232456323464554454454457
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Which is the equation in slope-intercept form of the line that contains points A and C?
Delvig [45]
We have that
point C(-2,-4)
point A(-4,-2)

we know that
the equation of a line in the intercept form is
y=mx+b

Step 1
find slope m
m=(y2-y1)/(x2-x1)
m=(-2+4)/(-4+2)------> 2/-2-------> m=-1

Step 2
find the value of b
with m=-1 and point C(-2,-4)
-4=-1*(-2)+b--------> -4=2+b-------> b=-6
y=mx+b
y=-x-6

the answer is
y=-x-6



4 0
4 years ago
Given: AACD is isosceles with angle D as the vertex angle. B is the midpoint of AC. AB= x + 5, BC= 2x - 3, and CD = 2x + 6. Find
Marina86 [1]

Answer:

  • 70 units

Step-by-step explanation:

<u>Given triangle ACD</u>

  • AB = BC
  • CD = 2x + 6
  • AB = x + 5
  • BC = 2x - 3
  • P = ?

<u>Perimeter is sum of the side lengths:</u>

  • P = AD + CD + AC

AD = CD because D is vertex and the triangle is isosceles

AC = AB + BC because B is midpoint of AC

<u>Then P is:</u>

  • P = 2(2x + 6) + (x + 5) + (2x -3) = 4x + 12 + x + 5 + 2x - 3 = 7x + 14

<u>Find the value of x from the AB = BC:</u>

  • x + 5 = 2x - 3
  • 2x - x = 5 + 3
  • x = 8

<u>Then find the value of P:</u>

  • P = 7*8 + 14 = 56 + 14 = 70 units

3 0
4 years ago
Given (x – 7)2 = 36, select the values of x.
Gre4nikov [31]

Answer:

x = 13 and x = 1

Step-by-step explanation:

(x-7)² = 36

simplify left side of equation

x² - 14x + 49 = 36

Our object now is to get every thing on the left side of the equal sign so we can factor. To do this, we subtract 36 from both sides

x² - 14x + 13 = 0

we then factor the left side of the equation

( x - 1 ) ( x - 13 ) = 0

we then set factors equal to 0 and solve both factors for x

x - 1 = 0

add 1 to both sides

x = 1

x - 13 = 0

add 13 to both sides

x = 13

The values of x are x = 13 and x = 1

8 0
3 years ago
A mountain climber descends 3,852 feet over a period of 4 days. What was the average amount of her descent over that period of t
Harrizon [31]
To get the answer, divide 3852 feet by 4 days. That will give you an average of 963 feet per day as your answer.
5 0
4 years ago
Read 2 more answers
The sizes of two matrices A and B are given. Find the sizes of the product AB and the product BA, if the products are defined. A
Colt1911 [192]

Answer:

AB: size 4 x 4

BA: size 2 x 2

Step-by-step explanation:

When we want to multiply two matrices, we need first to check if the number of columns of the first matrix is equal the number of rows of the second matrix. Then, the resulting matrix would have the number of rows equal the number of rows of the first matrix, and the number of columns equal the number of columns of the second matrix.

That is, if we have a matrix A with dimensions a x b and a matrix B with dimensions c x d, to calculate the product AB we must have b = c, and the resulting product would have dimensions a x d.

Finally, if A is 4 x 2 and B is 2 x 4, we would have:

AB = (4 x 2) (2 x 4)

2 = 2 -> product is possible.

Dimensions of the result: 4 x 4

BA = (2 x 4) (4 x 2)

4 = 4 -> product is possible.

Dimensions of the result: 2 x 2

4 0
4 years ago
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