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Komok [63]
3 years ago
14

Solve each equation by the quadratic formula. -x^2+5x-6=2

Mathematics
1 answer:
Gnoma [55]3 years ago
6 0

Answer:

x=  −5±√−7  / −2 --> (No Real Solution)

Step-by-step explanation:

−x^2+5x−6−2=2−2

−x^2+5x−8=0

x=  −(5)±√(5)2−4(−1)(−8)  / 2(−1)

x=  −5±√−7  / −2

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What is the x value such that y =15 - 3x and y = 0? Please explain how you got this answer.
Mumz [18]

Answer:

X=5

Step-by-step explanation:

Look at the problem | y=15-3x

5×3 is 15.

y=0

15-15=0

Therefore that's the answer.

you're welcome, get better!! :D

8 0
3 years ago
PLEASE HELP ME!<br> Find m∠FEC.<br><br> Answer Options:<br> A. 69<br> B. 50<br> C. 57<br> D. 37
Anna35 [415]

Answer:

Option (A)

Step-by-step explanation:

Measure of an angle formed between a chord and a secant is equal to the half of the difference of the intercepted arcs.

m(∠FEC) = \frac{1}{2}[m(\text{arc FC})-m(\text{arc})FD]

(15 + 6x)° = \frac{1}{2}[(24x - 6)^{\circ}-(9+7x)^{\circ}]

30 + 12x = (24x - 7x) - (6 + 9)

30 + 12x = 17x - 15

17x - 12x = 30 + 15

5x = 45

x = 9

m(∠FED) = (15 + 6x)

               = 15 + 6(9)  

               = 69°

Option (A) will be the correct option.

7 0
2 years ago
a coffee shop sells a ceramic coffee mug for $8.95. each refill costs $1.50. last month rose spent $26.95. how many refills did
Varvara68 [4.7K]

Answer:

The answer is 12.

Step-by-step explanation:

First subtract 8.95 from 26.95. Then divide the difference by 1.50. Then you have your answer.

4 0
3 years ago
Read 2 more answers
How much longer is the big arc than the small arc. Give the answer to 1 decimal place
romanna [79]
Circumference of the outer circle = 2πr = 2π(6) = 12π

circumference of the outer arc = 120/360 x 12π = 12.57cm

circumference of the inner circle = 2πr = 2π(5) = 10π

circumference of the inner arc = 120/360 x 10π = 10.47 cm

Difference in length = 12.57 - 10.47 = 2.1cm (1 d.p.)

Answer: 2.1cm

6 0
3 years ago
Which expression could be used to find the volume of the prism shown below?
AnnyKZ [126]

Answer:

11 times 8 times five

Step-by-step explanation:

When you are adding a three dimension shape you multiply it.

3 0
2 years ago
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