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kipiarov [429]
4 years ago
15

Help quick!!!!! I cannot figure it out, help.(Both)

Mathematics
1 answer:
Sladkaya [172]4 years ago
4 0

Answer:

a. 21x-2

b. -28x-2

c. 7b-35x-2

Step-by-step explanation:

a. f(3)

7(3x)-2

21x-2

b. f(-4)

7(-4x)-2

-28x-2

c. f(b-5)

7(b-5x)-2

7b-35x-2

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Find the volume of the solid below.
9966 [12]

Answer:

3000 cm^3.

Step-by-step explanation:

If the top number is 15 it's

15 * 20 * 10

=  3000 cm^3.

7 0
3 years ago
Read 2 more answers
Two apples and three peaches cost $1.65. three apples and two peaches cost $1.60. what is the cost of one peach
marta [7]
Apples = $.30
Peaches = $.60

You can get this by setting up a system of equations that looks like this. 

2x + 3y = 1.65
3x + 2y = 1.60

Where x is the amount of apples and y is the number of peaches. Then you can solve using any of the methods (I would suggest elimination for ease). 
7 0
3 years ago
An angle of measure 120 degrees intersects the unit circle at point (-1/2,√3/2) What is the exact value of cos(120)
notka56 [123]

The exact value of cos120 if the measure 120 degrees intersects the unit circle at point (-1/2,√3/2) is 0.5

<h3>Solving trigonometry identity</h3>

If an angle of measure 120 degrees intersects the unit circle at point (-1/2,√3/2), the measure of cos(120) can be expressed as;

Cos120 = cos(90 + 30)

Using the cosine rule of addition

cos(90 + 30) = cos90cos30 - sin90sin30

cos(90 + 30) = 0(√3/2) - 1(0.5)

cos(90 + 30) = 0 - 0.5

cos(90 + 30) = 0.5

Hence the exact value of cos120 if the measure 120 degrees intersects the unit circle at point (-1/2,√3/2) is 0.5

Learn more on unit circle here: brainly.com/question/23989157

#SPJ1

7 0
2 years ago
209 is what percent of 475?​
professor190 [17]

Answer:

44%

Step-by-step explanation:

1) You divide 209 by 475

2) Take 0.44 and move the decimal over 1 place to make <u>44%</u>

8 0
3 years ago
Please help lol ....
Nataly [62]
So basically isolate the X

4x>32
Divide both sides by 4

X> 8
unshaded dot on 8, pointing to the left
8 0
3 years ago
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