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2 years ago

If the two angles are complementary, find the measure of each of angle.

Mathematics

2 answers:

Nady [450]2 years ago

7 0

Answer: D, 40 and 50

Steps:

1. Since complementary angles equal 90 degrees, 4r + 5r = 90

2. 4r + 5r is 9r

3. This makes the equation, 9r=90

4. Divide both sides by 9, and then you get r=10

5. Substitute r=10 into 4r and 5r

6. This should make 4(10) and 5(10)

7. Multiply and then get 40 and 50

Verdich [7]2 years ago

4 0

Answer:

D 40 and 50

Step-by-step explanation:

Complimentary angles are equal to 90

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What are two fractions between 3/5 and 4/5

Scrat [10]

Two fractions between 3/5 and 4/5 are 13/20 and 11/15

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3 years ago

Read 2 more answers

Mr. Edwards hired a new employee to work in his bakeshop. In one hour, this employee burned 439439439 chocolate chip cookies, wh

pshichka [43]

Answer:

The new employee burn 1756 cookies in the course of the day.

Step-by-step explanation:

Given:

Mr. Edwards hired a new employee to work in his bakeshop. In one hour, this employee burned 439 chocolate chip cookies, which represented 25 percent of all the cookies the employee burned in that day.

Now, to find the cookies the new employee burn in the course of the day.

Let the cookies the new employee burn in the course of the day be $x.$

Number of chocolate chip cookies new employee burned = 439.

Percent this represented of all the cookies the employee burned in that day = 25%.

Now, to get the cookies the new employee burn in the course of the day we put an equation:

$25\%\ of\ x=439$

$\frac{25}{100} \times x=439$

$0.25\times x=439$

Dividing both sides by 0.25 we get:

$x=1756.$

Therefore, the new employee burn 1756 cookies in the course of the day.

3 0

2 years ago

Evaluate 4!7! divided by 6!8!

faltersainse [42]

! is factorial
it means multipliy all numbers from 1 to that number together
example
1!=1
2!=2*1
3!=3*2*1
etc

some things to note
7!*8=8!
4!*5*6=6!

$\frac{(4!)(7!)}{(6!)(8!)}$
so we can rewrite it as
$\frac{(4!)(7!)}{(4!)(5)(6)(7!)(8)}$ =
$\frac{1}{(5)(6)(8)}$ =
$\frac{1}{240}$

4 0

3 years ago

If f(x)=4x+7, what is the inverse of fx

irinina [24]

Answer:

f^-1(x) = 1/4 x - 7/4

Step-by-step explanation:

f(x)=4x+7

Inverse:

x = 4y + 7

4y = x - 7

y = 1/4 x - 7/4

Answer

f^-1(x) = 1/4 x - 7/4

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3 years ago

An agricultural sprinkler distributes water in a circular pattern of radius 100 ft. It supplies water to a depth of e^-r feet pe

Elan Coil [88]

A circle of radius $R$ ft has area $\pi R^2$ sq ft. For any fixed $R$ , water will reach a depth of $e^{-R}$ ft. You can think of the total volume of water supplied within a radius $R$ of the sprinkler as the volume of the "cylinder" with "height" given by $e^{-r}$ for some $0$ .

This volume is

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cu ft.

3 0

3 years ago