3 years ago

Using the figure below, select the pairs of complementary angles.

Mathematics

1 answer:

Mila [183]3 years ago

8 0

Answer:

c) <DBE and <EBC

Step-by-step explanation:

This is because when added together, both angles equal 90 degrees.

Complementary angles always equal 90 degrees.

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What is the value of x in the equation 1/3x-2/3=-18?

MA_775_DIABLO [31]

$\frac{1}{3} x- \frac{2}{3} = -18

x-2=-54

x=-54+2

x=-52$

6 0

3 years ago

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A hot air balloon is currently at a height of 900 feet. The balloon is descending by 10 feet minute. Find a function for the bal

mylen [45]

Answer:

$y=-10x+900$

Step-by-step explanation:

Let

x -----> the number of minutes

y ----> the balloon's height in feet

we know that

The linear equation in slope intercept form is equal to

$y=mx+b$

where

m is the slope

b is the y-coordinate of the y-intercept

In this problem we have that

The slope is equal to

$m=-10\ \frac{ft}{min}$ ----> is negative because is a decreasing function

$b=900\ ft$

Remember that the y-intercept is the value of y when the value of x is equal to zero

In this context the y-intercept is the height of the balloon when the time is equal to zero (initial height)

substitute

$y=-10x+900$

8 0

3 years ago

Xiaoming is making cookies. Each batch of cookies uses3 eggs. If Xiaoming has 20 eggs, and assuming he has enough of the other i

koban [17]

Answer:

Step-by-step explanation:

3(1)=3 3(2)=6 3(3)=9 3(4)=12 3(5)=15

3(6)=18 3(7)=21 3(8)=24

----------------------------------------------------

3(6)=18 is closest to 20

so the greatest number of batches Xiaoming can make is 6.

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3 years ago

Fiona was thinking of a number. Fiona doubles it, then adds 5 to get an answer of 49.2. What was the original number?

Musya8 [376]

22.1
She added 5 so you take away 5 which would be 44.2 then she doubles it another word for multiplication so you do the opposite and divide by 2 and you get 22.1

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3 years ago

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Write 16^8 as a power with a base of 4

ruslelena [56]

(4^2)^8 would be the answer 4^2=16 and 16^8 is the same thing

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3 years ago

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