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sweet-ann [11.9K]

3 years ago

8

Solve for x in the equation 3x2-18+5=47

1 answer:

Airida [17]3 years ago

7 0

3x^2-18+5=47
3x^2 = 60
x^2 = 20
x = 4.472 , x = - 4.472

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The sum of three certain consecutive numbers is 240. Find the 3 numbers.

BartSMP [9]

Answer:79 , 80 , 81

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3 years ago

Evaluate the expression 9x , when x= 4, 7, and 2.5<br> I need help ;-; pls

Otrada [13]

Step-by-step explanation:

When x = 4,

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$9x = 9 \times 4 = 36$

when x = 7

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3 years ago

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solong [7]

<u>To find the area of a complex shape</u>:

⇒ must cut the whole shape into a simpler shape

square with side lengths of 4 in
2 triangles with a base of 4 in. and a height of 8 in.
2 triangles with a base of 4 in. and a height of 10 in.

<u>Let's calculate:</u>

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2 triangles with a base of 4 in. and a height of 10 in.

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Hope that helps!

8 0

2 years ago

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Helga [31]

Answer:

This answer is based on that I don't know what that 2 is for

Step-by-step explanation:

There are many different answers for this question

Area is l times w so 4 times 4 = 16 the lengths could be 4

If one of the sides is 2 then the length must be 8 because 8 times 2 is 16

7 0

3 years ago