3 years ago

Is sin( - 7) positive or negative? (Why?)

Mathematics

1 answer:

finlep [7]3 years ago

7 0

-.66 this is because when you put it into a scientific calculator sin then -7 and round up you get -.66

You might be interested in

Which strategy for addressing counterclaims should Christopher use to

Over [174]

Your answer is going to be c

8 0

3 years ago

The formula for the slant height of a cone is , where S is surface area of the cone. Use the formula to find the slant height, l

liq [111]

we know that

The formula of the surface area of the cone is equal to

$SA=\pi r^{2}+\pi rl$

where

SA is the surface area

r is the radius of the cone

l is the slant height

in this problem we have

$SA=500\pi\ ft^{2}\\r=15\ ft\\l=?$

Solve the formula for l

$SA=\pi r^{2}+\pi rl\\ \\\pi rl=SA-\pi r^{2} \\ \\l=\frac{SA-\pi r^{2} }{\pi r}$

substitute the values

$l=\frac{500\pi -\pi 15^{2} }{\pi15}\\ \\l=\frac{275}{15}\ ft\\ \\l=\frac{55}{3}\ ft\\ \\l=18\frac{1}{3}\ ft$

therefore

<u>the answer is</u>

The slant height is $18\frac{1}{3}\ ft$

7 0

3 years ago

Read 2 more answers

7) What is the area of the parallelogram.

monitta

Answer:

Step-by-step explanation:

A=base*height

10*7.8

8 0

2 years ago

Three less than a numbers divided by 4 is five

mariarad [96]

Answer:

x/4 (-3) = 5

Step-by-step explanation:

Simply translate into numbers. :D

5 0

3 years ago

Read 2 more answers

what is the answer to this question: Tadeo volunteered at the library 6 times as many hours over the weekend as Dylan. Together,

monitta

Answer:

Tadeo: 12 hours
Dylan: 2 hours

Step-by-step explanation:

We can let d represent the number of hours that Dylan volunteered. Then Tadeo volunteered for 6d hours, and their total hours were ...

d +6d = 14

7d = 14 . . . . . . collect terms

d = 2 . . . . . . . divide by the coefficient of d

6d = 6(2) = 12

Tadeo volunteered 12 hours; Dylan volunteered 2 hours.

4 0

2 years ago