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3 years ago

In ΔQRS, q = 73 inches, r = 40 inches and s=51 inches. Find the measure of ∠S to the nearest degree

Mathematics

2 answers:

Nadya [2.5K]3 years ago

6 0

Answer:

74 is the correct answer to the question

Licemer1 [7]3 years ago

5 0

Answer: 74

Step-by-step explanation:

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Find the standard deviation of the data, 12, 19, 9.

jek_recluse [69]

Answer:

4.19

Step-by-step explanation:

Find the mean:

$\text{Mean}=\frac{12+19+9}{3}=\frac{40}{3}$

Find the standard deviation:

$\text{Standard Deviation}=\sqrt{\frac{(12-\frac{40}{3})^2+(19-\frac{40}{3})^2+(9-\frac{40}{3})^2}{3}}=\sqrt{\frac{158}{9}}\approx4.19$

4 0

2 years ago

-10 < 2x - 4 < 8, What is X?

Crank

Add 4 to the whole equation

-10 + 4 < 2x < 8 + 4

Simplify

-6 < 2x < 12

Divide the whole equation by 2

-6/2 < x < 12/2

Simplify

5 0

3 years ago

Read 2 more answers

Factor 5v^2 - 23v - 10

AfilCa [17]

Answer:

$(5v + 2)(v - 5)$

Step-by-step explanation:

Hello!

The expression is written in the form of $ax^2 + bx + c$

Let's factor by grouping:

$ac = -50$

The sum of the factors of -50 should add up to -23.

-25 and 2 work for this.

Expand and factor:

$5v^2 - 23v - 10$
$5v^2 - 25v + 2v - 10$
$5v(v - 5) +2(v -5 )$
$(5v + 2)(v - 5)$

The factored expression is $(5v + 2)(v - 5)$

7 0

2 years ago

To help racecar drivers safely negotiate turns, racetracks are banked at the curves. At one location, a 58 ft track is banked su

zmey [24]

The correct answer is Choice B: 53.0 feet.

If you draw a picture of the cross section, you will have a right triangle. The hypotenuse is 58 and one of the legs is 23.6. All you have to do is use the Pythagorean Theorem and solve for the missing side.

x^2 + 23.6^2 = 58^2

7 0

3 years ago

The circumference of a circle can be found using the formula C = 2r. Which is an equivalent equation solved for r? r = C r = C(2

vaieri [72.5K]

Answer:

r equals StartFraction C Over 2 pi EndFraction

Step-by-step explanation:

we know that

The circumference of a circle is equal to

$C=2\pi r$