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3 years ago

Answer the 3 questions plsss

Mathematics

1 answer:

Elza [17]3 years ago

7 0

Answer:

8. Skewed Left

9. 75

10. About 80 (probably 81 or 82)

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Six times a number is 3000. What is the number?

True [87]

Divide 3000 by 6 and then you will get the answer

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4 years ago

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A right triangle has legs of 5 ft and 6 ft. What is the length of the hypotenuse? _____ ft.

yarga [219]

Answer:

2.) 7.8

Step-by-step explanation:

We can use Pythagorean theorem

a^2 + b^2 = c^2 where a and b are the legs and c is the hypotenuse

5^2 + 6^2 = c^2

25+36 = c^2

61 = c^2

Take the square root of each side

sqrt(61) = sqrt(c^2)

7.810249676 = c

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4 years ago

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Two sides of a triangle have lengths 9 m and 13 m. The angle between them is increasing at a rate of 0.02radians /min. How fast

Olin [163]

Answer:0.175 m/s

Step-by-step explanation:

Given

Two sides of length 9 and 13 m

angle between them is increasing at an angle of 0.02 rad/min

rate of increasing of third at $\theta =\frac{\pi }{3}$

let a=9

b=13

c=unknown side

Now using cos rule of triangle

$cos\theta =\frac{a^2+b^2-c^2}{2ab}$

$cos\theta =\frac{a^2+b^2}{2ab}-\frac{c^2}{2ab}$

Differentiating both sides we get

$-\sin \theta \times \frac{\mathrm{d} \theta }{\mathrm{d} t}=0-2\frac{c}{2ab}\times \frac{\mathrm{d} c}{\mathrm{d} t}$

at $\theta =\frac{\pi }{3}$

c=11.53 m

substituting values we get

$\frac{\sqrt{3}}{2}\times 0.02=\frac{11.53}{9\times 13}\times \frac{\mathrm{d} c}{\mathrm{d} t}$

$\frac{\mathrm{d} c}{\mathrm{d} t}=0.175 m/s$

8 0

3 years ago

Hey who’s awake need help with math pls help

vovangra [49]

Answer:

Step-by-step explanation

6 0

3 years ago

Robert earns $8.65 per hour mowing lawns. A) Write a rule for money m as a function of the number of hours h spent mowing lawns.

____ [38]

Answer:

A) $m=8.65h$

B) $29.58

Step-by-step explanation:

Earnings per hour = $8.65

To find:

A) Write a rule for money m as a function of the number of hours h spent mowing lawns.

Earnings done in one hour = $8.65

Number of hours = $h$

To find the total earnings, $m$ as a function of number of hours $h$ , we need to multiply per hour earnings with number of hours $h$ .

Therefore, the equation is:

$m=8.65h$

B) How much does Robert earn if she works 3 hours and 25 minutes?

First of all, let us convert 3 hours and 25 minutes to hours.

3 hours 25 minutes = 3.42 hours

Therefore, total earnings are:

$m = 8.65\times 3.42 = \$29.58$

5 0

3 years ago