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nika2105 [10]
3 years ago
7

Type the correct answer in the box.

Mathematics
1 answer:
Marysya12 [62]3 years ago
8 0

Answer:(-2, 2)

Step-by-step explanation:

7q² - 28 = 0

Add 28 to bothside

7q² - 28 + 28 = 0+ 28

7q² = 28

Divide bothside by 7

7q² / 7 = 28/7

q² = 4

Take the square root of bothside

√q² = ±√4

q = ± 2

q = -2 or q =2

q = (-2, 2)

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Find the volume of a pyramid with a square base, where the perimeter of the base is
Liula [17]

Answer:

  33.4 m^3

Step-by-step explanation:

The edge length of the base is 1/4 of the perimeter, so is ...

  (10.3 m)/4 = 2.575 m

Then the area of the base is the square of this, or ...

  B = (2.575 m)^2 = 6.630625 m^2

The volume is ...

  V = (1/3)Bh = (1/3)(6.630625 m^2)(15.1 m) ≈ 33.4 m^3

The volume of the pyramid is about 33.4 cubic meters.

3 0
4 years ago
PLEASE HELP! THANKS!
Vinvika [58]
So that is area of rectangle-1/2areacircle

so
areacircle=pir^2
r=5
1/2pir^2=1/2pi5^2=25pi/2=12.5pi

arearectangle=lw=12*5=60


unshaded=60-12.5pi=20.75 square feet
round

20.8 square feet
6 0
3 years ago
I need help with this! 23 points!
uranmaximum [27]
The answer is -3, you distribute 14 then you do 18+42 and combine the x values then solve
3 0
3 years ago
Which could be the area of one face of the rectangular prism select three options
bezimeni [28]

Answer:24 cm2, 66 cm2, 44 cm2

Step-by-step explanation:

24 would be 6x4, 66 would be 11x6, and 44 would be 4x11

8 0
3 years ago
Read 2 more answers
(Please respond quickly!)
ki77a [65]

Answer:

x=12

Step-by-step explanation:

we know that

A linear pair is two angles that are adjacent and form a line. The angle measure of a line is 180 degrees

In this problem we have that

(10x-20)^o+(6x+8)^o=180^o --- by supplementary angles (form a linear pair)

solve for x

(16x-12)=180

16x=180+12

16x=192

x=12

3 0
4 years ago
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