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3 years ago

Please help me with my HW

Mathematics

1 answer:

ioda3 years ago

7 0

38,249 and 19,865 don't round up to 30,000, the rest do

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Need help ASAP. i forgot all the steps after the Area is solved with 5. or if 25pi is the right answer.

maxonik [38]

Answer:

$42.5\:\mathrm{m^2}$

Step-by-step explanation:

The area of a sector with measure $\theta$ in degrees is given by $r^2\pi\cdot\frac{\theta}{360}$ , where $r$ is the radius of the sector.

What we're given:

$r$ of 5
$\theta$ of $195^{\circ}$

Solving, we get:

$A_{sector}=5^2\pi\cdot \frac{195}{360}=13.5416666667\pi=42.5424005174\approx \boxed{42.5\:\mathrm{m^2}}$

*Notes:

units should be in square meters (area)
the problem does not say whether to round or leave answers in term of pi, so you may need to adjust the answer depending on what your teacher specifically wants

7 0

3 years ago

8(3x – 2) ≤ 2(7x + 12)?

leva [86]

Answer: x≤ 4

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Which value of x makes 7+5(x-3)=227+5(x−3)=22 a true statement?

Greeley [361]

Answer: Your input has more than one equals sign.

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

A bag contains counters that are red, black , or green . 1/3 of the counters are red 1/6 of the counters are black There are 15

Nadya [2.5K]

Answer:

There are 5 black counters in the bag.

Step-by-step explanation:

15 green counters in the bag

The proportion of green counters is given by:

$p = 1 - (\frac{1}{3} + \frac{1}{6}) = 1 - (\frac{2}{6}+\frac{1}{6}) = 1 - \frac{3}{6} = 1 - \frac{1}{2} = \frac{2}{2} - \frac{1}{2} = \frac{1}{2}$

So, we have that, the total is x. So

$\frac{x}{2} = 15$

$x = 30$

There are 30 total counters.

How many black counters are in the bag ?

A sixth of the counters are black. So

$\frac{1}{6} \times 30 = \frac{30}{6} = 5$

There are 5 black counters in the bag.

8 0

3 years ago

Suppose a Ferris Wheel is 160 feet high and casts a shadow that is 64 feet long. At the same time, a ticket booth next to the fe

const2013 [10]

I think the ticket booth would be 7 feet high. 160/64 = 2.5. 2.8 x 2.5 = 7

7 0

3 years ago