2 years ago

Number 2 I need help please?!!!!):

Mathematics

2 answers:

Lana71 [14]2 years ago

5 0

answer: y < 4

explanation: y < - 4 + 8

ivann1987 [24]2 years ago

4 0

Answer:

Step-by-step explanation:

y<4

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Triss [41]

Answer:

c. 6

Step-by-step explanation:

Given

See attachment for graph

Required

Average rate of change

This is calculated as:

$Rate = \frac{f(b) - f(a)}{b - a}$

Where

$(a,b) = (2,4)$

So, we have:

$Rate = \frac{f(4) - f(2)}{4 - 2}$

$Rate = \frac{f(4) - f(2)}{2}$

Using the attached graph, we have:

$f(2) = 4$

$f(4) = 16$

So, we have:

$Rate = \frac{16- 4}{2}$

$Rate = \frac{12}{2}$

$Rate = 6$

4 0

2 years ago

Plz help idk what this is even about

AysviL [449]

I think the answer is A.

It's probably wanting you to use pythagorean theorem.

6 0

3 years ago

A certain clock loses 15 minutes every hour. SUppose the clock is set to the correct time at 9am. What will the correct time be

Nikitich [7]

Answer:

from my understanding te correct time will be at 10:15am

Step-by-step explanation:

4 0

3 years ago

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Solve the system of equations by the substitution method.<br> y = 5x + 6<br> y=9x+7.

joja [24]

Answer:

(-1/4, 19/4)

Step-by-step explanation:

5x+6=9x+7

-4x=1

x= -1/4

y=5(-1/4) +6

y=19/4

3 0

2 years ago

How many quarts of a 50% solution of acid must be added to 20 quarts of a 20% solution of acid to obtain a mixture containing a

Nuetrik [128]

Answer:

40 quarts.

Step-by-step explanation:

Let x =quarts of the 50% solution

so, according to the question

the typical mixture equivalent equation will be like this

$.50x + .20(20) = .40(x+20)\\.50x + 4 = .40x + 8\\.50x - .40x = 8 - 4\\.10x = 4\\x = 4/.10 \\x = 40$

so the answer will be 40 quarts of 50% solution should be added.

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2 years ago

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