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3 years ago

2

Mathematics

1 answer:

dimulka [17.4K]3 years ago

7 0

Answer:

90, B

Step-by-step explanation:

3 x 3 = 9

6 x 3 = 18

9 + 9 + 18 + 18 + 18 + 18 = 90

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GIVING BRAINLIEST <br><br> SOLVE USING FACTORING <br><br> (8x^2 - 4x^2-3x+1)-(1-5x^2+ x)

irina1246 [14]

Answer:

4r to the power of 2 - 3r +1

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3 years ago

consider the line y=2/3x-0 find the equation of the line that is parallel to this line and passes through the point(8, 4).

Mila [183]

To find the equation take the slope 2/3 y-y(1)=m(x-x(1) y-4=2/3(x-8) = 2/3x-16/3 Next solve for y y=2/3x-16/3 +4(turn 4 into a fraction with a common denominator) y=2/3x-16/3 + 12/3 y=2/3x-4/3

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3 years ago

Which solution set is graphed on the number line?

sashaice [31]

Answer:

Step-by-step explanation:

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8 0

3 years ago

Read 2 more answers

Solve the inequalities 3x2 – 11x > 20

Bas_tet [7]

Answer:

x=-10

Step-by-step explanation:

3x · 3x=9x-11x>20

-2x>20

÷-2 -2

___________-

x=-10

Hope this helps ∞

5 0

3 years ago

A red ant travels 9/8 inches in 3/4 minutes and 3 3/8 inches in 2 1/4 minutes what is the ants speed in inches per minute? What

I am Lyosha [343]

Answer:

1. 1.5 inches per minute

2. 90 inches per hour

Step-by-step explanation:

speed = $\frac{distance}{time}$

1. total distance covered = $\frac{9}{8}$ + $\frac{27}{8}$

= $\frac{9+27}{8}$

= $\frac{36}{8}$

= 4 $\frac{1}{2}$ inches

Total time taken = $\frac{3}{4}$ + $\frac{9}{4}$

= $\frac{3 +9}{4}$

= $\frac{12}{4}$

= 3 minutes

The ants average speed = $\frac{4.5}{3}$

= 1 $\frac{1}{2}$

= 1.5

The ants speed is 1 $\frac{1}{2}$ inches per minute.

2. Since;

60 minutes = 1 hour

3 minutes = x hours

x = $\frac{3}{60}$

= $\frac{1}{60}$

= 0.05 hours

Speed = $\frac{4.5}{0.05}$

= 90 inches per hour

The red ants speed is 90 inches per hour.

3 0

3 years ago