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3 years ago

What is the amplitude of y = -6 sin(37x + 4) – 2?

Mathematics

1 answer:

Nataly_w [17]3 years ago

4 0

Answer:

Step-by-step explanation:

In y = Asin(Bx + C) +D,

|A| is the amplitude

Amplitude: |-6| = 6

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Line a has a slope of<br> 7/5<br><br> . Line b is parallel to line a. What is the slope of line b?

DerKrebs [107]

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Hint :

Parallel lines have same slopes.

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$slope \: \: of \: \: line \: \: b \: = \frac{7}{5} \\$

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3 years ago

In Brooke’s class of 25 students, 15 students report that math is their favorite class and 40% of the students report that scien

Natasha_Volkova [10]

Answer:

The students prefer Math 60%, to Science 40%

Step-by-step explanation:

15/25= 3/5= 5 is then divided into 3 to get the per cent= 60%

3 0

3 years ago

How many gallons of paint are needed to paint one coat, if a gallon of paint covers 400ft squared?

bixtya [17]

Answer:

6.28 gallons

Step-by-step explanation:

first we need to find the area of a half sphere, and then find how much paint will be needed for that area.

The area of a sphere:

$a=4 \pi r^2$

thus, the area of half a sphere is:

$a=2 \pi r^2$

we know that the radius is:

$r=20ft$

we substitute this to find the area of the half sphere (the area they need to paint):

$a=2\pi (20ft)^2\\a=2(3.1416) (400ft^2)\\a=2,513.27ft^2$

now the question is how many gallons of paint are needed to paint 2,513.27 square feet.

We are told that 1 gallon covers 400 square feet

thus, we must divide 2,513.27 by 400:

$\frac{2,513.27ft^2}{400ft^2} =6.28$

6.28 gallons of paint are needed.

5 0

3 years ago

Janell hikes 1/3 mile every 1/6 hour. how far does he hike in 1 hour?

IRISSAK [1]

Answer:

2 miles

Step-by-step explanation:

1/3 times 6 equals 2

7 0

3 years ago

Can I get some help with this?

4vir4ik [10]

Hey !
The blank is 2- $\fbox{4}$
The blank is 6- $\fbox{3}$
The blank is 0- $\fbox{2}$

8 0

2 years ago

Read 2 more answers