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malfutka [58]
2 years ago
11

X square - 5 x - 24 = 0 Answer pls​

Mathematics
1 answer:
Goryan [66]2 years ago
3 0

Answer:

x = -3 and x = 8

Step-by-step explanation:

x^2 - 5x - 24 = 0

First you factor the equation:

(x - 8)(x + 3) = 0

Then set each factor equal to zero.

x - 8 = 0

x = 8

and

x + 3 = 0

x = -3

So you have two possible answers for x -- -3 and 8

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A. What is the circumference of the
erik [133]

Answer:

a) 94.2 cm

b) 78.5%

Step-by-step explanation:

a) since the square side = 30 cm

it means the diameter = 30 cm

then circumference of the largest circle that can be cut = 3.14×30 = 94.2 cm

b) the perimeter of the square = 30×4 = 120

94.2 for 120

x% for 100%

x = (100×94.2)/120 = 9420/120 = 942/12 = 78.5%

6 0
3 years ago
Find the coordinates of n after a 90 degrees clockwise rotation around the origin
Ket [755]

Answer:

270 degrees

Step-by-step explanation:

If you want a positive number, you can say that the origin is 360 degrees. Then, being it's moving clockwise, subtract 90 degrees from 360 degrees. That will give you 270 degrees.

If you want a negative answer, you could simply say that the origin is 0 and subtract 90 from that giving you -90.

Odds are you  should go with 270.

5 0
3 years ago
The times of the runners in a marathon are normally distributed, with a mean of 3 hours and 50 minutes and a standard deviation
balu736 [363]

Answer: 0.16

Step-by-step explanation:

Given that the run times provided are normally distributed ;

Mean(x) of distribution = 3 hours 50 minutes

Standard deviation(s) = 30 minutes

The probability that a randomly selected runner has a time less than or equal to 3 hours 20 minutes

3 hours 20 minutes = (3 hrs 50 mins - 30 mins):

This is equivalent to :

[mean(x) - 1 standard deviation]

z 1 standard deviation within the mean = 0.84

z, 1 standard deviation outside the mean equals:

P(1 - z value , 1standard deviation within the mean)

1 - 0.8413 = 0.1587

= 0.16

7 0
3 years ago
There are 12 pieces of pie that are going to be split between 5 people. How many slices of pie does each person get?
Phantasy [73]

Answer:

2.4 slices of pie per person

Step-by-step explanation:

Assuming each person is receiving an equal amount of pie, the answer is 2.4 slices per person.

12 ÷ 5 = 2.4

8 0
2 years ago
Read 2 more answers
is this right?? plz answer
tekilochka [14]

Answer:maybe

Step-by-step explanation:

To answer that we need to talk about parallel universes

8 0
2 years ago
Read 2 more answers
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