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2 years ago

Which expression can be used to represent the phrase “four less than seven”?

Mathematics

2 answers:

Elena-2011 [213]2 years ago

8 0

Answer:

C. 7-4

Step-by-step explanation:

You would subtract 4 from 7 and that will give you 7-4.

Hopes this helped :))

alexira [117]2 years ago

7 0

Answer:

4-7 is four less than 7.

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Is x=4 a solution to the equation 6=x+2? Is it a solution to the inequality 2x≥9?

jek_recluse [69]

Answer:

Is x = 4 a solution to the equation 6 = x + 2? YES

Is x = 4 a solution to the inequality 2x ≥ 9? NO

Step-by-step explanation:

Is x = 4 a solution to the equation 6 = x + 2? YES

we cans solve the equation 6=x+2 by clearing for x:

6 = x + 2

we move the +2 on the right as a -2 to the left:

6 - 2 = x

4 = x

this way we find that indeed x = 4 is a solution to 6 = x + 2.

Is x = 4 a solution to the inequality 2x ≥ 9? NO

Let's solve the inequality by clearing for x:

2x ≥ 9

we move the 2 that is multiplying on the left to divide on the right side:

x ≥ 9/2

x ≥ 4.5 ⇒ x must be greater than or equal to 4.5

thus, 4 is not a solution to the inequality because 4 is less than 4.5

3 0

3 years ago

Which expression is equivalent to 2 + 3(x - 6)?

EastWind [94]

Answer:

C) 2 + 3 x - 18

Step-by-step explanation:

Explanation:-

Given expression 2+ 3(x-6)

⇒ 2 + 3 x - 18

⇒ 3 x - 16

8 0

3 years ago

Hey guys today you could help that would be great

abruzzese [7]

Answer: the answer is b

5 0

3 years ago

Whats the suface area?

Fiesta28 [93]

We can see that

There are four triangle on the surface

and five squares

For finding surface areas , we will find area of each surface and then add them

Calculation of area of triangle:

We are given

base=b=8

height=h=10

now, we can use area formula

$A=\frac{1}{2}*b*h$

$A=\frac{1}{2}*8*10$

$A=40$

Calculation of area of square:

base=width=8

$A=8*8$

$A=64$

There are four triangle and five squares on the surface

so, we can find surface area

SA=4* triangle + 5*square

$SA=4*40+5*64$

$SA=480ft^2$

so, surface area is $480ft^2$ .............Answer

6 0

3 years ago

The back-to-back stem-and-leaf plot below shows the ages of patients seen by two doctors in a family clinic in one day. Compare

Klio2033 [76]

Mean of doctor 1: 12
Median of doctor 1: 9.5
Mean of doctor 2: 16
Median of doctor 2: 19.5

7 0

3 years ago