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Citrus2011 [14]
2 years ago
11

Solve equation by completing the square 5n^2-3n-10=15

Mathematics
1 answer:
VARVARA [1.3K]2 years ago
5 0
These are the two answers you could get

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kalen has a 60 gallon fuel tank. the fuel gauge points to 1/4 how mcuh fuel does she need to buy to fill the tank
murzikaleks [220]

Answer:

45 Gallons

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
NEED THE ANSWER ASAP, PLEASE HELP!! What are the coordinates of the focus of the parabola?
qwelly [4]

Answer:

Vertex is (-8, 4)  not one of the answers offered!

Step-by-step explanation:

Factor -1/8 out of the first two terms. Leave a space inside parentheses in which to add a number.

y=-\frac{1}{8}(x^2 + 16x + \text{-----})-4

Complete the square by squaring half the coefficient of <em>x </em>and adding it in the space.

(\frac{16}{2})^2=64

Add 64 in the space you made, then compensate for that at the end of the expression by <u>subtracting</u>  -\frac{1}{8}(64)=-8

y=-\frac{1}{8}(x^2+16x+64)-4+8\\y=-\frac{1}{8}(x+8)^2+4

The x-coordinate of the vertex is the <u>opposite</u> of +8, the number inside the parentheses.  The y-coordinate of the vertex is the number at the end of the expression.

V(-8, 4)

8 0
3 years ago
What percentage of the surface area of the Ottoman is green
ruslelena [56]
Total Area = r² π + 2 r h π = 6² π + 2 * 6 * 14 π = 204 π in²
Green Area = 2 * 6 * 8 π = 96 π in²
204 π ---------------100 %
96 π ----------------- x %
---------------------------------
x = ( 96 * 100 ) / 204 = 47.0588 ≈ 47.1
Answer:
<span>About 47.1 % of the ottoman is green ( not including the bottom ).

hope this helped (:</span>
7 0
3 years ago
What is 1 4/5×6 equal too​
AlekseyPX

Answer: 10 4/5

Convert the mixed numbers to improper fractions

Use the algebraic formula for addition of fractions:

a/b + c/d = (ad + bc) / bd

Reduce fractions and simplify if possible

8 0
3 years ago
Error Analysis- Charles claimed the function
pogonyaev

Answer:

Answer is below

Step-by-step explanation:

Charles is wrong because 3 doesn't represent exponential decay. This is because 3 is greater than 1, so it represents exponential growth. If the number was less than 1, then it would represent exponential decay.

If this answer is correct, please make me Brainliest!

4 0
2 years ago
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