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Paul [167]
2 years ago
7

Find x. A) 3 B) 3.75 C) 4.25 D) 5

Mathematics
1 answer:
Alenkasestr [34]2 years ago
4 0

Answer: B

Step-by-step explanation:

By the intersecting chords theorem, (3)(5)=4x, meaning x=3.75.

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3x+8-X=57-4<br> Is 7 a solution to the question
Diano4ka-milaya [45]

Answer:

7 is not a solution for x.

Step-by-step explanation:

To see if 7 is a solution for x, we will simply plug in the value for x and see if the left hand side is equal to the right hand side.

3x + 8 - x = 57 - 4

3(7) + 8 - (7) ?= 57 - 4

21 + 8 - 7 ?= 53

29 - 7 ?= 53

22 ?= 53  (( NO ))

Since 22 does not equal 53, 7 is not a solution for x.

Let's find the solution for x:

3x + 8 - x = 57 - 4

2x + 8 = 53

2x = 45

x = 22.5

Let's validate this solution for x:

3x + 8 - (x) = 57 - 4

3(22.5) + 8 - (22.5) ?= 57 - 4

67.5 + 8 - 22.5 ?= 53

45 + 8 ?= 53

53 == 53  (( YES ))

Since 53 is indeed equal to 53, then 22.5 is a solution for x.

Cheers.

8 0
3 years ago
Read 2 more answers
What is negative 5 and 3/4 as a fraction
Alinara [238K]

Answer:

-23/4

Step-by-step explanation:

-5\frac{3}{5}

-\frac{5x4+3}{4}

-\frac{20+3}{4}

-\frac{23}{4}

3 0
3 years ago
The sum of two consecutive integers is 37. Write an equation that models this situation and find the values of the two integers.
gizmo_the_mogwai [7]
n+n+1=37\\&#10;2n=36\\&#10;\boxed{n=18}\\&#10;\boxed{n+1=19}
5 0
3 years ago
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What is the recommended heart rate for a 20 year old person?
dlinn [17]

Answer:

The average maximum heart rate for a 20 year old is <u>200 bpm</u>

The target heart rate is <u>100-170 beats per minute (bpm).</u>

I Hope this helps and I hope everything is okay!

4 0
3 years ago
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I need help with this question
tia_tia [17]

Answer:

98 in.^2

Step-by-step explanation:

The lateral area is the sum of the areas of the 3 rectangular sides.

The triangular sides are the bases.

lateral area = 7.2 in. * 5 in. + 3 in. * 5 in. + 9.4 in. * 5 in.

lateral area = 36 in.^2 + 15 in.^2 + 47 in.^2

lateral area = 98 in.^2

3 0
2 years ago
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