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sweet-ann [11.9K]
3 years ago
8

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

Mathematics
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 exponent in the equation is the 5.

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If the base of a square pyramid is 9 centimeters, and it has a volume of 324 cubic centimeters, what is the height of the pyrami
masha68 [24]

A

The volume (V) of a pyramid is found using the formula

V = \frac{1}{3} × area of base × height(h)

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3 0
3 years ago
Steffie makes a scale drawing for a crate with the demensions 15 inches long by 12 inches wide. Her scale factor is 1:3. Brian m
rodikova [14]

Answer:

Dimensions → (5 inches × 4 inches)

Step-by-step explanation:

Scale factor used for the drawing by Steffie = \frac{1}{3}

Since, scale factor = \frac{\text{Dimension of the drawing}}{\text{Actual dimension}}

For Steffie,

Actual length of the crate = \frac{\text{Dimension of the drawing}}{\text{Scale factor}}

                                           = \frac{15}{\frac{1}{3}}

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Actual width of the crate = \frac{12}{\frac{1}{3} }

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Since Brian used the scale factor = \frac{1}{9}

Length of the drawing = Actual length × Scale factor

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Width of the drawing = Actual width × Scale factor

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Therefore, dimensions of the drawing made by Brian are (5 inches × 4 inches)

6 0
3 years ago
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jekas [21]

Answer:

7/5

Step-by-step explanation:

To find the slope, we can use the slope formula

m = (y2-y1)/(x2-x1)

   = ( 9-2)/(6-1)

    = 7/5

7 0
3 years ago
Read 2 more answers
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