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3 years ago

Please help . thank u

Mathematics

1 answer:

Ierofanga [76]3 years ago

5 0

Hi there!

The measure for the angle B is 13.

A complementary angle equals to 90 degrees. You add (2x + 10) and (3x + 15) and equal it to 90. Combine like terms and balance out the problem like a 2 step variable equations.

Hope this helps !

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What is the answer 3x - 3 < 9

ahrayia [7]

Answer:

<em>x < 4</em> is your answer

Step-by-step explanation:

all you have to do +3 on both sides

divide 12/3

(Answer is above)

since 9 isnt greater than 9, techincally the answer is any number greater than 4.

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2 years ago

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Find the missing lengths. Leave your answers as radicals in simplest form.

Aleksandr-060686 [28]

Answer:

y = 5√2/2

x = 5

Step-by-step explanation:

First find y using the tan method: opposite/adjacent

tan(45) = 5√2/2 ÷ y

y = 5√2/2 ÷ tan(45)

y = 5√2/2

Then find x using the pythagoris theorem: c^2 = a^2 + b^2

x = √ (5√2/2)^2 + (5√2/2)^2

x = 5

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3 years ago

The base of an auditorium is in the form of an eclipse 200 feet long and 100 feet wide a pin drop near one focus can clearly be

dedylja [7]

Answer:

Let the coordinate of focus be $(\pm c , 0)$

As per the statement: The base of an auditorium is in the form of an eclipse 200 feet long and 100 feet wide.

⇒Length of Major axis=base of an auditorium = 200 feet and Length of a minor axis=wide of a auditorium = 100 ft

Semi-major axis (a) = 100 ft and

semi-minor axis(b) = 50 ft

Then, by an equation:

$c^2 = a^2-b^2$

Solve for c:

Substitute the given values we have;

$c^2=(100)^2-(50)^2$

Simplify:

$c^2 = 7500$

$c=\sqrt{7500} = 86.6025404$ ft

Distance between the foci is, $2c = 2 \cdot 86.6025404 = 173.205081$

Therefore, the distance between the foci to the nearest 10th of a foot is, 173.2 ft

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4 years ago

Samantha has chocolate bars and lollipops in the the ratio 4:5. If she has 12 chocolate bars,how many lollipops does she have?

labwork [276]

4 • 3 = 12
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she has 15 lollipops

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3 years ago

A company invests $94,000 for equipment to produce a new product. each unit of the product costs $11.20 and is sold for $16.98.

antoniya [11.8K]

Number of units = x

(a) c(x)= $94000 + 11.2x

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(c) p(x) = 16.98x - 11.2x - 94000
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4 years ago