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Dimas [21]
3 years ago
8

State true or false. If 9 is the solution of variable x in the equation fraction numerator 5 straight x space minus space 7 spac

e over denominator 2 end fraction space equals space straight y, then the value of y is 28
Mathematics
1 answer:
Gekata [30.6K]3 years ago
8 0

Answer:

False

Step-by-step explanation:

Based on what is stated in the question :

Expressing the worded equation Mathematically,

(5x - 7) / 2 = y

If y = 28

(5x - 7) / 2 = 28

Cross multiply

5x - 7 = 28 * 2

5x - 7 = 56

5x = 56 + 7

5x = 63

x = 63 / 5

x = 12.6

Hence, x ≠ 9

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What is the median for the following set of data?
Nataly [62]

Answer:

C.)9

Step-by-step explanation:

You add up all your data to get 54 and divide by the amount of numbers you had in the data which was 6. So if you divide 54 by 6 you get 9.

4 0
3 years ago
what is the measure of the central angle of a circle with a radius 24 ft that intercepts at 10 ft arc? use 3.14 as pie​
Brrunno [24]

Answer:

central angle =23.88°

Step-by-step explanation:

Given:Arc length =10ft

           radius= 24ft

To find : central angle

Formula: Arc length = 2πr.\frac{\theta}{360}°

                ⇒{\theta} = \frac{arc length.360}{2{\pi}{r}}

               ⇒ {\theta} = \frac{10(360{\degree})}{2 (3.14)(24)}

                ⇒{\theta}=23.8853503°

4 0
3 years ago
Convert (11001) into decimal​
Semenov [28]

Answer:

From the most right side it's 2^0 which is 1. The other ones are 2^4 and 2^3, So 16+8+1=25

7 0
3 years ago
what is the constant of variation for the quadratic variation of x |2|3|4|5|6| fx |28|63|112|175|252|
hjlf
F(x) = k*x^2
You can find k using only the first point.
28 = k*2^2
7 = k

The constant of variation is 7.
8 0
4 years ago
A line passes through the point (-2, 7) and has a slope of -5.
trapecia [35]

Answer:

a= -1

B

Step-by-step explanation:

My opinion:

the slope m = (y2 - y1) / (x2 - x1)

slope m is -5

y2 is 7

y1 is 2

x2 is -2

x1 is a

so the equation will be

-5 = (7 - 2) / (-2 -a )

10 + 5a = 5

5a = -5

a = -1

Then you can plug the value a = -1 into the equation of the slope m to double check it.

5 0
3 years ago
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