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3241004551 [841]
3 years ago
9

Solve this quadratic equation by completing the square.

Mathematics
2 answers:
ANEK [815]3 years ago
8 0

Answer:

B

Step-by-step explanation:

Licemer1 [7]3 years ago
7 0
I think the answer is D
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Patrick receives 14 phone calls in a week. Andrew receives 10 phone calls. David receives 8 phone calls. George receives 11 phon
swat32

Answer:

43 phone calls

Step-by-step explanation:

Just add them up

14+10+8+11

This is equal to 43

4 0
3 years ago
A video game club charges a fixed annual membership fee of $20 and $2 per video game rented. Let f(n) represent the total annual
alexdok [17]

Answer: f(n)=2n+35

Step-by-step explanation:

Given : Let f(n) represent the total annual cost of renting n video games.

A video game club charges a fixed annual membership fee of $20 and $2 per video game rented.

Then the total annual cost is given by :-

f(n)=20+2n

If the membership was increased by $15 the next year , then the total cost in next years will be :-

f(n)=20+2n+15\\\\\Rightarrow\ f(n)=2n+35

Hence, the function best represents  the relationship between f(n) and n if the membership was increased by $15 the next year :

f(n)=2n+35

6 0
3 years ago
4/r+8/f=5/g solve for f
Olegator [25]

Answer:

Let's solve for f.

4

r

+

8

f

=

5

g

Step 1: Multiply both sides by fr.

4f+8r=

5fr

g

Step 2: Multiply both sides by g.

4fg+8gr=5fr

Step 3: Add -5fr to both sides.

4fg+8gr+−5fr=5fr+−5fr

4fg−5fr+8gr=0

Step 4: Add -8gr to both sides.

4fg−5fr+8gr+−8gr=0+−8gr

4fg−5fr=−8gr

Step 5: Factor out variable f.

f(4g−5r)=−8gr

Step 6: Divide both sides by 4g-5r.

f(4g−5r)

4g−5r

=

−8gr

4g−5r

f=

−8gr

4g−5r

Answer:

f=−8gr4g−5r

7 0
3 years ago
Read 2 more answers
X^2+4x-5/1-x how do you simplify it?
Elodia [21]
<span><span><span>x^2</span></span><span><span>+<span>4x</span></span><span>-5</span></span></span> using the AC method.<span><span><span>(<span>x<span>−1</span></span>)</span><span>(<span>x+5</span>)/</span></span><span>1<span>−<span>x
which gives you -x-5</span></span></span></span>
7 0
3 years ago
Read 2 more answers
7n+2 = 4n+17 solve the equation
lions [1.4K]

Answer:

n = -5

Step-by-step explanation:

Solve for n:

n + 2 = 4 n + 17

Hint: | Move terms with n to the left hand side.

Subtract 4 n from both sides:

(n - 4 n) + 2 = (4 n - 4 n) + 17

Hint: | Combine like terms in n - 4 n.

n - 4 n = -3 n:

-3 n + 2 = (4 n - 4 n) + 17

Hint: | Look for the difference of two identical terms.

4 n - 4 n = 0:

2 - 3 n = 17

Hint: | Isolate terms with n to the left hand side.

Subtract 2 from both sides:

(2 - 2) - 3 n = 17 - 2

Hint: | Look for the difference of two identical terms.

2 - 2 = 0:

-3 n = 17 - 2

Hint: | Evaluate 17 - 2.

17 - 2 = 15:

-3 n = 15

Hint: | Divide both sides by a constant to simplify the equation.

Divide both sides of -3 n = 15 by -3:

(-3 n)/(-3) = 15/(-3)

Hint: | Any nonzero number divided by itself is one.

(-3)/(-3) = 1:

n = 15/(-3)

Hint: | Reduce 15/(-3) to lowest terms. Start by finding the GCD of 15 and -3.

The gcd of 15 and -3 is 3, so 15/(-3) = (3×5)/(3 (-1)) = 3/3×5/(-1) = 5/(-1):

n = 5/(-1)

Hint: | Simplify the sign of 5/(-1).

Multiply numerator and denominator of 5/(-1) by -1:

Answer: n = -5

5 0
2 years ago
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