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3 years ago

PLEASE HELP WITH THIS EASY QUESTION!! EXPLANATION NEEDED!!

Mathematics

1 answer:

Pie3 years ago

5 0

Answer:

100

Step-by-step explanation:

(b/2)^2

b= -20

(-20/2)^2

(-10)^2

100

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A 381 foot cable runs from the top of a radio tower to a skate in the ground. If it hits the ground 167 feet from the base of th

Goshia [24]

Answer:

64°

Step-by-step explanation:

Using Pythagoras rule :

Cosθ = adjacent / hypotenus

Adjacent = 167

Hypotenus = 381

Cosθ = 167 / 381

Cosθ = 0.4383202

θ = Cos^-1(0.4383202)

= 64.003

Hence, angle of elevation = 64°

8 0

3 years ago

Solve the equation for all real values of x.

amm1812

The correct answer is (c) x equals pi times k for all k ∈ ℤ

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3 years ago

What is an equation of the line that passes through the point (3,- 1) and has a slope of 2

serg [7]

Answer:

y=2x-1

Step-by-step explanation:

M is the slope for 2 and B is the y int. of -1

Hope this helped!

6 0

3 years ago

Please answer the question in the photo, thanks!

belka [17]

Answer:

$\therefore 2\dfrac{1}{3} \div \left ( -3\dfrac{2}{3} \right ) = -\dfrac{7}{11}$

Step-by-step explanation:

The question relates to dividing a fraction by proper and another fraction

The given expression is presented as follows;

$2\dfrac{1}{3} \div \left ( -3\dfrac{2}{3} \right )$

We rearrange the fractions as improper fractions for easier division as follows;

$2\dfrac{1}{3} = \dfrac{7}{3}$

$-3\dfrac{2}{3} = -\dfrac{11}{3}$

Therefore, we have;

$2\dfrac{1}{3} \div \left ( -3\dfrac{2}{3} \right ) = \dfrac{7}{3} \div \left (-\dfrac{11}{3} \right ) = \dfrac{7}{3} \times \left (\dfrac{1}{-\dfrac{11}{3} } \right ) = \dfrac{7}{3} \div \left (-\dfrac{3}{11} \right ) =-\dfrac{7}{11}$

$\therefore 2\dfrac{1}{3} \div \left ( -3\dfrac{2}{3} \right ) = -\dfrac{7}{11}$

4 0

3 years ago

A basketball team starts 5 of its 12 available players at random every week. What is the probability that for two consecutive we

tatiyna

Answer:

There is a 58% chance. I think.

Step-by-step explanation:

You add 7 and 7 together to get your numerator (14). Then you add 12 and 12 together to get 24 which is your denominator. Next you divide 14/24 to get .58333333. Finally you move the decimal 2 places to the right to get your percentage.

3 0

3 years ago