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Cerrena [4.2K]
3 years ago
5

Find the value of x. (3x-9)(x+7)

Mathematics
1 answer:
NISA [10]3 years ago
3 0

Answer:

The answer to this question is 23

Step-by-step explanation:

The reason is because....

23x3= 69

69-9=60

60+ (x+7)

23+7=30

30+60=90

The angle shown is a 90 degree angle therefore this is your answer.

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I will number your options from 1 to 5 then;

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3 years ago
Please help! I don't understand!
Vinvika [58]

Answer:

F

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
What is the surface area of the storage chest? Round your answer to the nearest tenth.
Firdavs [7]

Answer:

<u>1093.5 square inches</u>

Step-by-step explanation:

Surface Area of the storage chest :

⇒ <u><em>2 (LW + WH + LH</em></u>)

  • L = length
  • W = width
  • H = height

=============================================================

Given :

⇒ L = 26 in.

⇒ W = 7.5 in.

⇒ H = 10.5 in.

===========================================================

Solving :

⇒ Surface Area = 2(26 × 7.5 + 7.5 × 10.5 + 26 × 10.5)

⇒ Surface Area = 2(195 + 78.75 + 273)

⇒ Surface Area = 2(546.75)

⇒ Surface Area = <u>1093.5 square inches</u>

4 0
3 years ago
What is the radius of a circle with an area of 113.04 cubic inches? Use 3.14 for pi. Enter your answer in the box. in.
gizmo_the_mogwai [7]

Answer:

6 inches.  

Step-by-step explanation:

We have been given that area of a circle is 113.04 cubic inches and we are asked to find the radius of the circle.

We will use area of circle formula to find the radius of our circle.

\text{Area of circle}=\pi r^2

Upon substituting the area of given circle we will get,

113.04=\pi r^2

Substituting \pi=3.14 we will get,

113.04=3.14*r^2  

\frac{113.04}{3.14}=\frac{3.14*r^2}{3.14}  

36=r^2

Upon taking square root of both sides of our equation we will get,

r=\pm 6  

Since the radius of the circle can not be negative, therefore, the radius of circle will be 6 inches.  


4 0
3 years ago
PLZ HELP NEED ASAP, much appreciated
Margaret [11]

Answer:

Ok that's not it

x=-1 then y=4

x=0 then y= 6

x=1 then y = 8

x=2 then y= 10

x=3 then y= 12

Step-by-step explanation:

when y=2x+6

you have to plug what it says x is in each of the equations.

For the first one it says x=-1

you then plug that in and you get y=2(-1)+6

then you go through PEMDAS and first you get y=-2+6

-2+6 = 4

therefore y=4

and you just go through the rest wiht that

Step-by-step explanation:

6 0
2 years ago
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