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Thepotemich [5.8K]
3 years ago
5

HELP ME ASAP WITH 8! PLS!! I beg u..

Mathematics
1 answer:
lakkis [162]3 years ago
7 0
7. x=3 is the midpoint between the roots. The other root is x = 2*3 -(-5) = 11.

8a) f(x) = (x +3)^2 -49. The vertex is (-3, -49). The roots are -10, 4.

8b) y = (x+4)^2 -1. The vertex is (-4, -1). The roots are -5, -3.

8c) f(x) = 2(x +3)^2 -34. The vertex is (-3, -34). The roots are -3±√17.
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A price is decreased by 24% and is now £372.40.<br>Work out the original price.​
goldfiish [28.3K]

Answer:

Step-by-step explanation:

Subtract the discount from 100 to get the percentage of the original price.

Multiply the final price by 100.

Divide by the percentage in Step One

5 0
3 years ago
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
3 years ago
What 2 numbers have a total of 46 and a diffrence of 12​
aleksley [76]

Answer:

29 and 17

Step-by-step explanation:

Sum: 29 + 17 = 46

Difference: 29 - 17 = 12

3 0
2 years ago
Read 2 more answers
[Help asap, will mark brainliest] Refer to the diagram shown to classify the relationship between each angle pair.
Anastasy [175]

Answer:

a) corresponding

b) alternate interior

c) alternate exterior

d) supplementary

e) vertical

Step-by-step explanation:

I hope this helps :)

8 0
3 years ago
Read 2 more answers
What is f(x)=2x^2+5 multiply by g(x)=2x
Kryger [21]

Answer:

4x^3 +10x

Step-by-step explanation:

for f(x) × g(x) you should multiply their functions :

(2x^2+5)×(2x) = 4x^3 +10x

6 0
3 years ago
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