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2 years ago

Help please loves. I'm failing math and I really need to pass.

Mathematics

1 answer:

erma4kov [3.2K]2 years ago

7 0

The equation has a y intercept and a steadily decreasing value
So that makes it linear (not all linear equations have a y intercept but they do all have a steady increase or decrease)

The y intercept is -6 so we know the equation will have a y intercept of -6

Looking at at graph, we also see for everytime x increases one, that y decreases -3
So that gives the equation a rate of -3x
So the equation is y=-3x-6

So your answer is C

You might be interested in

The volume of 10 drops of a liquid is 0.01 fluid ounce. What is the volume of 1000 drops?

Maslowich

The answer is 10 fluid ounces. 1000 divided by 10 = 100 so if you multiply 0.1 by 100 you get 10. So therefore, 1,000 drops is equal to 10 fluid ounces

3 0

2 years ago

NEED HELP ASAP!!! WILL MARK BRAINLIEST!!!!!!

Svetach [21]

Step-by-step explanation:

3×3=9. 3 faces so 9×3=27

10×3=30. 4 faces so 30×4=120

6×3=18. 2 faces so 18×2= 36

15×3=45. 3 faces so 45×3= 135

120+135=255

36+27=63

255+63=318

answer =318

6 0

2 years ago

Nico had 9 words correct on his weekly spelling test. This is 1 less than what

zavuch27 [327]

Answer:

9 = X -1 X = 10

Step-by-step explanation:

Add one to both sides

6 0

2 years ago

Read 2 more answers

A pole is 3.4 m tall casts a shadow that is 1.8 m long. At the same time, a nearby tower casts a shadow that is 39.75 m long. Ho

KATRIN_1 [288]

Answer:

Step-by-step explanation:

For this, you need to solve a proportion-

3.4 x

----- = -----

1.8 39.75

3.4*39.75=135.15

135.15/1.8= 75.0833.....

75.0833.. is rounded to 75

7 0

2 years ago

2.5% of a population are infected with a certain disease. There is a test for the disease, however the test is not completely ac

Aleks04 [339]

Answer:

$P(disease/positivetest) = 0.36116$

Step-by-step explanation:

This is a conditional probability exercise.

Let's name the events :

I : ''A person is infected''

NI : ''A person is not infected''

PT : ''The test is positive''

NT : ''The test is negative''

The conditional probability equation is :

Given two events A and B :

P(A/B) = P(A ∩ B) / P(B)

$P(B) >0$

P(A/B) is the probability of the event A given that the event B happened

P(A ∩ B) is the probability of the event (A ∩ B)

(A ∩ B) is the event where A and B happened at the same time

In the exercise :

$P(I)=0.025$

$P(NI)= 1-P(I)=1-0.025=0.975\\P(NI)=0.975$

$P(PT/I)=0.904\\P(PT/NI)=0.041$

We are looking for P(I/PT) :

P(I/PT)=P(I∩ PT)/ P(PT)

$P(PT/I)=0.904$

P(PT/I)=P(PT∩ I)/P(I)

0.904=P(PT∩ I)/0.025

P(PT∩ I)=0.904 x 0.025

P(PT∩ I) = 0.0226

P(PT/NI)=0.041

P(PT/NI)=P(PT∩ NI)/P(NI)

0.041=P(PT∩ NI)/0.975

P(PT∩ NI) = 0.041 x 0.975

P(PT∩ NI) = 0.039975

P(PT) = P(PT∩ I)+P(PT∩ NI)

P(PT)= 0.0226 + 0.039975

P(PT) = 0.062575

P(I/PT) = P(PT∩I)/P(PT)

$P(I/PT)=\frac{0.0226}{0.062575} \\P(I/PT)=0.36116$

8 0

2 years ago