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Natasha_Volkova [10]

3 years ago

7

Write equations for the horizontal and vertical lines passing through the point (-1,-9).

1 answer:

Tasya [4]3 years ago

4 0

Horizontal line has a slope of zero because does not rise vertically.

The form that we have to use in this case is y=b because the slope is zero.

So I would say that the answer for this one is

Y=-1

And a vertical line has a undefined slope because it will go up infinitely.

And in this one we have to put the x-intercept.

So I would say that the answer for this one is x=-9

I hope you get it right :D

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Liz types 180 words in three minutes. At that rate how many minutes does it take her to type 1260 words

mash [69]

Answer:

21 minutes

Step-by-step explanation:

you first have to find how many words she writes in one minute. you do this by dividing 180/3=60. after that divide 1260 by 60 = 21 minutes.

4 0

3 years ago

Write an equation and answer the following plz

olasank [31]

10 divided by 5= x x=2

3 0

3 years ago

If sin theta=-1/4 and theta terminates in the third quadrant, find the exact value of sin2 theta.

DIA [1.3K]

Answer:

$sin(2\theta)=\frac{\sqrt{15}}{8}$

Step-by-step explanation:

We are given

$sin(\theta)=-\frac{1}{4}$

Firstly, we can draw triangle

angle lies in third quadrant

so, we get

$cos(\theta)=-\frac{\sqrt{15} }{4}$

now, we can use formula

$sin(2\theta)=2sin(\theta)\times cos(\theta)$

now, we can plug values

$sin(2\theta)=2\times -\frac{1}{4}\times -\frac{\sqrt{15} }{4}$

now, we can simplify it

and we get

$sin(2\theta)=\frac{\sqrt{15}}{8}$

7 0

4 years ago

Read 2 more answers

Which is a solution to (x – 3)(x + 9) = –27?<br><br> x = –9<br> x = –3<br> x = 0<br> x = 6

Margarita [4]

Expand
x²+6x-27=-27
add 27 both sides
x²+6x=0
factor
x(x+6)=0
set to zero

x=0

x+6=0
x=-6

x=0 or -6

answer is 0 since -6 is not listed

8 0

4 years ago

Read 2 more answers

If f(x)= 2x^2+1, what is f(x) when x=3

givi [52]

Hey there!

f(x) = 2x^2 + 1

y = 2x^2 + 1

y = 2(3)^2 + 1

3^2

= 3 * 3

= 9

y = 2(9) + 1

2(9) = 18

y = 18 + 1

y = 19

Answer: y = 19

Good luck on your assignment and enjoy your day!

~Amphitrite1040:)

8 0

3 years ago