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monitta
3 years ago
8

. 4(x 2 4) A 4x 2 18 2 2 B 2x 2 16 1 2x C 16 1 4x D 8x 2 16 2 4x

Mathematics
2 answers:
il63 [147K]3 years ago
6 0

Answer:

9.6x

Step-by-step explanation:

SYBOLAB

Arada [10]3 years ago
5 0
9.6x I think because I did the count
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Which expression is equivalent to 7(4+7)? *
Mashcka [7]

Answer:

28+49

Step-by-step explanation:

8 0
2 years ago
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SOMEONE PLEASE HELP ME ASAP PLEASE!!!​
lesantik [10]

Answer:

153.86

Step-by-step explanation:

Do 3.14 times 7 to the power of 2

Hope this helps

4 0
3 years ago
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Which one of the following statements expresses a true proportion?
adoni [48]
Try them step by step 

2/3=3/2? No

3/5=12/20? Lets try and see

If we <span>simplify 12/20 what do we do? Well we take 4*3=12 and 4*5=20 

Now that we simply the 4 from both the numerator and denominator we get our answer 3/5 

Your answer will be B.</span>
3 0
3 years ago
The relation ((6, 8), (7, 10), (7, 12), (8, 16),
Brilliant_brown [7]

Answer:

x = 7 is repeated twice.

Hence, there is NO MORE unique input. We can not have repeated inputs.

Thus, the relation is NOT a function.

Step-by-step explanation:

Given the relation

  • {(6, 8), (7, 10), (7, 12), (8, 16), (10, 16)}

We know that a relation is a function that has only one output for any unique input.

As the inputs or x-values of the relations are:

at x = 6, y = 8

at x = 7, y = 10

at x = 7, y = 12

at x = 8, y = 16

at x = 10, y = 16

If we closely observe, we can check that there is a repetition of x values.

i.e. x = 7 is repeated twice.

Hence, there is NO MORE unique input. We can not have repeated inputs.

Thus, the relation is NOT a function.

8 0
3 years ago
Persons taking a​ 30-hour review course to prepare for a standardized exam average a score of 620 on that exam. Persons taking a
mihalych1998 [28]

Answer:

y = 4.125x + 496.25

Step-by-step explanation:

Set the data up as points. Then deal with the points.

Givens

(30,620)

(70,785)

y2 = 785

y1 = 620

x2 = 70

x1 = 30

Formula

Slope = (y2 - y1) / (x2 - x1)

Solution

Slope = (785 - 620)/(70 - 30)

Slope = 165 / 40

Slope = 4.125

===================

Now you need the y intercept. Either one of the two given points will give you that.

y = 620

x = 30

m = 4.125

y = mx + b

620 = 4.125*30 + b

620 = 123.75 + b

620 - 123.75 + b

b = 496.25

5 0
3 years ago
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