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levacccp [35]
3 years ago
15

Going into the final​ exam, which will count as two​ tests, has test scores of 77 , 82, 72 , 63 and 92 What score does need on t

he final in order to have an average score of​ 80?
Mathematics
1 answer:
Ludmilka [50]3 years ago
4 0

Answer:

you either need to score a perfect on one exam and get a 80 on the second or get two 90s on both exams.

Step-by-step explanation:

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Graph y=-3/2x-3<br> I need help on this for test
allsm [11]
hope this assists you on your test

3 0
4 years ago
The circle graph represents the number of teenagers at a high school who play video games. If 1,938 students go to the school, a
rewona [7]

Answer:

there are 1,679 students that don't play video games

Step-by-step explanation:

because 1938   -   259 =1,679

4 0
3 years ago
What is the volume of the hemisphere? 583.2cm^3cm 3 291.6cm^3cm 3 6882.3cm^3cm 3 3441.1cm^3cm 3 Item at position 3
Sveta_85 [38]

Answer:

See Explanation

Step-by-step explanation:

The question has missing details; as the radius or an attachment of the hemisphere is not given.

However, I'll solve on a general terms.

The volume of a hemisphere is: V = \frac{2}{3}\pi r^3

Take for instance

r = 14.9cm

The volume becomes:

V = \frac{2}{3} * 3.142 * 14.9^3

V = \frac{2 * 3.142 * 14.9^3}{3}

V = \frac{20787.151516}{3}

V = 6929.051cm^3

<em>So, all you need to do is plug in the value of radius in the formula.</em>

7 0
3 years ago
50 POINTS
larisa86 [58]

Answer:

see below

Step-by-step explanation:

f(x) = 5x^3 +1, g(x) = – 2x^2, and h(x) = - 4x^2 – 2x +5

f(-8) = 5(-8)^3 +1 = 5 *(-512) +1 =-2560+1 =-2559

g( -6) = -2 ( -6) ^2 = -2 ( 36) = -72

h(9) = -4( 9)^2 -2(9) +5 = -4 ( 81) -18+5 = -324-18+5=-337

3 0
3 years ago
Read 2 more answers
<img src="https://tex.z-dn.net/?f=8%28%20%7B4%7D%5E%7B2%7D%29%20%2B%20%20%7B2%7D%5E%7B4%7D%20" id="TexFormula1" title="8( {4}^{2
cluponka [151]

The given expression 8(4)^2+2^4 is equal to 144 or 12^2

<em><u>Solution:</u></em>

Given expression is:

8(4)^2+2^4

We have to evaluate the above given expression

We know that,

(4)^2 = 4 \times 4 = 16

2^4 = 2 \times 2 \times 2 \times 2=16

Substituting these in above given expression, we get

8(4)^2+2^4=8 \times 16+16\\\\8(4)^2+2^4= 128+16\\\\8(4)^2+2^4=144

Also we know that,

12 \times 12 = 144

Therefore,

8(4)^2+2^4=144 = 12 \times 12 = 12^2

Thus the given expression 8(4)^2+2^4 is equal to 144 or 12^2

7 0
4 years ago
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