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3 years ago

I need help really don’t understand

Mathematics

2 answers:

seraphim [82]3 years ago

6 0

The answer is 3 feet

blsea [12.9K]3 years ago

3 0

Answer:

The answer to your question is 3 feet

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Is a terminating decimal always rational

AlladinOne [14]

Yes....because a terminating decimal can be turned into a fraction, making it rational

5 0

3 years ago

Read 2 more answers

Find the area of an equilateral triangle with radius 22 cm. Round to the nearest whole number.

earnstyle [38]

Answer:this item, we are given with the radius equal to 22 cm.

In this measurement of the radius is the hypotenuse of the 30°-60°-90° triangle formed with the half the measurement of the side of the equilateral triangle being opposite to the 60° and equal to the hypotenuse times (1/2)(√3)

Step-by-step explanation:

If we let s be the side of the triangle then,

s/2 = r(1/2)(√3)

Multiplying the equation by 2,

s = r√3

Substituting,

s = (22 cm)(√3) = 22√3

The area of the equilateral triangle is computed through the equation,

A = (√3 / 4)(s²)

Substituting,

A = (√3 / 4)(22√3)² = 628.7 cm²

Therefore, the answer to this item is the first choice.

4 0

3 years ago

1/8 of Tony's books are mystery books he has three mystery books how many books does Tony have an all

seropon [69]

1/8 of all=mystery
mystery=3

'of' means multiply
therefor
1/8 times all=3
multiply both sides by 8/1 to clear fracion
all=24

6 0

3 years ago

The curb weight of a new car is 3,347 pounds. How much does the car weigh?

frozen [14]

Answer:

Step-by-step explanation:

i think

4 0

3 years ago

How to do this problem??

lorasvet [3.4K]

We know that the sum of the inner angles of any triangle is 180º

72º + (7x + 3)º + (3x + 5)º = 180º
72º + 7xº + 3º + 3xº + 5º = 180
7xº + 3xº = 180º - 72º - 3º - 5º
10xº = 100º
$x^0 = \frac{100^0}{10^0}$
$x^0 = 10\to\:\boxed{\boxed{x = 10^0}}\end{array}}\qquad\quad\checkmark$

The sum of the external angle (9y + 1)º with inner angle (3x + 5) = 180 °, <span>Replace the measure of "x" found:
</span>
(9y + 1)º + (3x + 5)º = 180º
9yº + 1º + 3xº + 5º = 180º
9yº + 1º + 3.(10)º + 5º = 180º
9yº + 1º + 30º + 5º = 180º
9yº = 180º - 1º - 30º - 5º
9yº = 144º
$y^0 = \frac{144^0}{9^0}$
$y^0 = 16\to\:\boxed{\boxed{y = 16^0}}\end{array}}\qquad\quad\checkmark$

Answer:
<span>The measures of "x" and "y" are respectively: 10º and 16º</span>

6 0

3 years ago