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butalik [34]
3 years ago
8

For what value of x must ABCD be a parallelogram?

Mathematics
1 answer:
Svetach [21]3 years ago
4 0

Answer:

x  = 3

Step-by-step explanation:

to be a parallelogram opposite sides have to be equal

so we have

DC = AB\\\\20x-7 = 16x+5

now solve for x

20x-7+7 = 16x+5+7\\\\20x = 16x + 12\\\\20-16x = 16x+12-16x\\\\4x = 12\\\\x = \frac{12}{4} = 3

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Sloan [31]

Answer: A= 216

Step-by-step explanation:

3 0
3 years ago
3. Alice took out a simple interest loan to purchase carpet for her house. The interest on the loan
hjlf

Answer:

The price of the carpet was \$3,697.20

Step-by-step explanation:

we know that

The simple interest formula is equal to

I=P(rt)

where

I is the Final Interest Value

P is the Price of the carpet

r is the rate of interest  

t is Number of Time Periods

in this problem we have

t=3\ years\\ P=\$?\\ I=\$1,081.43\\r=0.0975

substitute in the formula above

1,081.43=P(0.0975*3)

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P=1,081.43/(0.2925)

P=\$3,697.20

4 0
3 years ago
Let f(x) = 2x2 - 5x + 9. Evaluate the polynomial substituting 3 for x. Find the remainder. 11 12 13 14
yaroslaw [1]
F(3)= 2(3)^2-5(3)+9
=2(9)-15+9
=18-15+9
=3+9
=12
f(3)=12 or B

7 0
3 years ago
a rectangular prism is 5 meters long, 17 meters wide, and 4 meters high. what is the surface area of the rectangular prism?
Mars2501 [29]

The surface area of rectangular prism is 346 square meters.

Given the figure is rectangular prism.

We know that the surface area of rectangular prism with length L, width W and height H is = 2(LW+WH+LH)

Given that the length of prism = 5 m

Width of prism = 17 m

Height of prism = 4 m

So the total surface area of the rectangular prism is given by,

= 2 [5*17 + 17*4 + 4*5]

= 2 [85 + 68 + 20]

= 2*173

= 346 square meters

Hence the surface area of rectangular prism is 346 square meters.

To know more about Rectangular Prism refer to:

brainly.com/question/24284033

#SPJ4

8 0
1 year ago
I will give brainliest&lt;3 help pleaseee
lana [24]

Answer:

24

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
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