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VikaD [51]
4 years ago
5

A student scored 68, 79, and 98 on three algebra tests. what must he score on the fourth test in order to have an average grade

of at least 85?
Mathematics
1 answer:
slega [8]4 years ago
7 0
Score on fourth test should be 95

68 + 79 + 98 + 95 = 340

340 divide by 4 (as there are 4 tests) = 85
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Find The Domain Find the Value
laila [671]

1a) The domain is a set of all real numbers not equal to 5

1b) The domain is a set of all real numbers not equal to 4

<h3>What is the domain of the function?</h3>

Domain of a function is the set of all possible input values that make the function defined.

1a) We are given the function;

C(x) = -3²/(x - 5)

The domain will be a set of values that makes the denominator not equal to zero. Thus;

The domain is a set of all real numbers not equal to 5

1b) The function is; R(x) = 4x/(3x - 12)

The domain will be a set of values that makes the denominator not equal to zero. Thus;

The domain is a set of all real numbers not equal to 4

2a) Function is;

f(x) = (x + 8)/(2x - 1)

f(2) = (2 + 8)/(2(2) - 1)

f(2) = 10/3

f(0) = (0 + 8)/(2(0) - 1)

f(0) = -8

f(-1/2) = (-1/2 + 8)/(2(-1/2) - 1)

f(-1/2) = -15/4

2b) Function is;

r(t) = (t² + 8)/(t³ - 25t)

r(3) = (3² + 8)/(3³ - 25(3)) = -17/48

r(2) = (2² + 8)/(2³ - 25(2)) = -12/42 = -2/7

r(-1) = ((-1)² + 8)/((-1)³ - 25(-1))  = 9/24 = 3/8

Read more about Domain of function  at; brainly.com/question/10197594

#SPJ1

3 0
1 year ago
mrs. Cleaver mix is 1.24 liters of red paint with three times as much blue paint to make purple paint. She put the paint equally
Jet001 [13]
When it says in each cup, I'mg guessing it means containers... so I'll go with that! If you need 3 times as much blue for red to make purple then:

1.24 liters × 3 = 3.72 liters of blue paint per container.

If I am wrong, please go from there with the blue per container. I hope this helped!
5 0
3 years ago
Solve for x: x-10= -12
kumpel [21]

Answer:

x = -2

Step-by-step explanation:

Add 10 to both sides of the equation

x−10=−12

−10+10=−12+10

Simplify

Solution:

x= -2

8 0
2 years ago
I NEED HELP ON THIS QUESTION ASAP ANSWER ALL PLEASE
Kisachek [45]
It’s a
Step by step to cool to be true
7 0
3 years ago
Read 2 more answers
Help! Due soon!!!!!!!!!
denis23 [38]

Answer:

78.75

Step-by-step explanation:

450 is increased by 75%

450 + 450*75%

Change to decimal form

450 +450*.75

450+337.5

787.5

Now decrease by 90%

787.5-787.5*90%

Change to decimal form

787.5-787.5*.9

787.5-708.75

78.75

8 0
3 years ago
Read 2 more answers
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