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notka56 [123]
2 years ago
8

Directions: Review writing expressions to represent situations. Identify the variables,coefficients, and constants.

Mathematics
1 answer:
mojhsa [17]2 years ago
7 0

#1

  • Let the number be x
  • Three times the number means 3x.
  • 8more girls

The expression is

  • 3x+5

#2

  • He began as x
  • Now he has 9 times more

So the expression is

  • 9x

#3

  • Dimes be a
  • Nickel be b
  • Quarter be z

The expression is

  • 3a+b+z

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if the area of the rectangle is given by the polynomial 2x-7-15 what is the dimension of the rectangle in terms of x​
erica [24]

Answer:

2-7x

Step-by-step explanation:

<h2>hope i helped gl <3</h2>
5 0
3 years ago
What is the area of FGH
Dmitrij [34]
54 in^{2}

A right triangle is a shape that looks like half of a square. The height of the triangle is 12, and the base of the triangle is 9. To find the area, use the following formula: 

A = \frac{bh}{2}


= \frac{12x9}{2}


= \frac{108}{2}


= 54 in^{2}
8 0
3 years ago
What is the volume of this cone?
dlinn [17]

Answer:

167.46

Step-by-step explanation:

V=\frac{1}{3} X  \pi r^{2} X h

\frac{1}{3} x  3.14 x 4^{2} x10

\frac{1}{3} X 50.24x 10

\frac{1}{3} x 502.4

V=167.46

3 0
3 years ago
-10+8x=70 Anyone have the answer for these <br><br><br><br> 142+x x+62
Naddik [55]

Answer:

Step-by-step explanation:

U need to think

7 0
3 years ago
On a coordinate plane, 2 polygons are shown. Polygon A B C D has points (1, negative 6), (5, negative 6), (6, negative 2), and (
irga5000 [103]

Answer:

The correct option is;

Use a scale factor of 2

Step-by-step explanation:

The parameters given are;

A = (1, -6)

B = (5, -6)

C = (6, -2)

D = (0, -2)

A'' = (1.5, 4)

B'' = (3.5, 4)

C'' = (4, 2)

D'' = ( 1, 2)

We note that the length of side AB in polygon ABCD = √((5 -1)² + (-6 - (-6))²) = 4

The length of side A''B'' in polygon A''B''C''D'' = √((3.5 -1.5)² + (4 - 4)²) = 2

Which gives;

AB/A''B'' = 4/2 = 2

Similarly;

The length of side BC in polygon ABCD = √((6 -5)² + (-2 - (-6))²) = √17

The length of side B''C'' in polygon A''B''C''D'' = √((4 -3.5)² + (2 - 4)²) = (√17)/2

Also we have;

The length of side CD in polygon ABCD = √((6 -0)² + (-2 - (-2))²) = 6

The length of side C''D'' in polygon A''B''C''D'' = √((4 -1)² + (2 - 2)²) = 3

For the side DA  and D''A'', we have;

The length of side DA in polygon ABCD = √((1 -0)² + (-6 - (-2))²) = √17

The length of side D''A'' in polygon A''B''C''D'' = √((1.5 -1)² + (4 - 2)²) = (√17)/2

Therefore the Polygon A B C D can be obtained from polygon A''B''C''D'' by multiplying each side of polygon A''B''C''D'' by 2

The correct option is therefore;

Use a scale factor of 2.

3 0
4 years ago
Read 2 more answers
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