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sesenic [268]
3 years ago
10

I need help with this:(

Mathematics
1 answer:
Fudgin [204]3 years ago
6 0

Answer:

94%

Step-by-step explanation:

The whole thing is about averages. Currently the average an 87%, because 85+91+86 = 262. 262/3 = roughly 87%.

Now if she got another score, that would mean it would now be divided by 4 instead of 3. So the equation is:

(262+x)/4 = 89

           *4     *4

____________

262 + x = 356

-262         -262

____________

          x  = 94

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Brent has a model car collection. He was given 3 cars as a gift, and he adds 4 cars per year. Which of the graphs below represen
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y= 4c+3

and assuming it is multiple choice, the graph should look similar to that. Hope that helps!

5 0
3 years ago
Perpendicular lines AB and CD Intersect at point E. If m<AED=×+20, wha is the value of x​
vladimir1956 [14]

Answer:

x = 70°

Step-by-step explanation:

Itz given that AB & CD are perpendicular to each other and intersect at E . So , angle(AED) = 90°

But here the value of angle(AED) = 90°

So,

x + 20 = 90°

=> x = 90° - 20°

= 70°

3 0
3 years ago
M=-3/7 ; (-5,6) what is the equation of the line
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Y - 6 = -3/7(x + 5)

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6 0
3 years ago
Please help me with this
Nina [5.8K]
The answer to this question is side KL
3 0
3 years ago
Read 2 more answers
Y = 5x^2 - 10<br> what is the rate of change ?<br> is the function linear or non linear ? why ?
Svetlanka [38]

Answer:

Step-by-step explanation:

Are you in Calculus?  These are calculus concepts!

To calculate the rate of change here you must specify an interval, e. g., "what is the rate of change on the interval (0, 3)?"

If you know calculus:  The 'rate of change' on the interval (a, b) is

                f(b) - f(a)

r. of c. = --------------------

                    b - a

Have you used this formula before?

Because of the 'x^2' term this is NOT a linear function.

If you want more explanation, provide an interval on which you want the average rate of change and ask specific questions of your own.

6 0
3 years ago
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