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3 years ago

6(4x – 5) = 42true?

Mathematics

2 answers:

choli [55]3 years ago

5 0

Answer:

c. 3

Step-by-step explanation:

Vera_Pavlovna [14]3 years ago

3 0

Answer:

Step-by-step explanation:

First you distribute and multiply both 4x and -5 by 6. This gives you the following equation:

24x-30=42

Next, you add 30 to both sides, giving you:

24x=72

Finally, you divide it all by 24, leaving you with

x=3

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8. The trapezoids are similar. The area of the smaller trapezoid is 131 m2. Find the area of the larger trapezoid to the nearest

kolbaska11 [484]

Answer:

$3,726\ m^{2}$

Step-by-step explanation:

step 1

Find the scale factor

we know that

If two figures are similar, then the ratio of its corresponding sides is equal to the scale factor

Let

z----> the scale factor

x----> corresponding side of the larger trapezoid

y----> corresponding side of the smaller trapezoid

$z=\frac{x}{y}$

we have

$x=64\ m$

$y=12\ m$

substitute

$z=\frac{64}{12}$

step 2

Find the area of the larger trapezoid

we know that

If two figures are similar, then the ratio of its areas is equal to the scale factor squared

Let

z----> the scale factor

x----> area of the larger trapezoid

y----> area of the smaller trapezoid

$z^{2}=\frac{x}{y}$

we have

$z=\frac{64}{12}$

$y=131\ m^{2}$

substitute

$(\frac{64}{12})^{2}=\frac{x}{131}$

$x=(\frac{4,096}{144})(131)$

$x=3,726\ m^{2}$

5 0

3 years ago

Simplify 7h^2+6h^2+5h^2+6h^2-h^2

iogann1982 [59]

Answer:

23h^2

Step-by-step explanation:

These are all like terms so we add/subtract them from left to right.

7h^2+6h^2+5h^2+6h^2-h^2

= 24h^2 - h^2

= 23h^2 (answer)

6 0

3 years ago

Which equation represents a circle with a center at (2, –8) and a radius of 11?

Sophie [7]

They are all wrong lol
(x-8)^2+(y+8)^2=121

4 0

3 years ago

Read 2 more answers

how do I figure out the weight loss of tina? she lost 3 pounds on the first week of her diet. she gained a pound on the second w

hram777 [196]

1st week - Lost 3 pounds = +3
2nd week - Gained 1 pound = -1
3+13 = + 22

So 22+3 = 25 25-1 = 24

So Tina lost 24 pounds in 13 weeks.

8 0

3 years ago

Hector works 12 hours per week at a part-time

rewona [7]

Answer:

Step-by-step explanation:

6 0

3 years ago