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4 years ago

To simplify (5 + 2)^2 + 7 ÷ 7

Mathematics

2 answers:

Sedbober [7]4 years ago

7 0

Parentheses (brackets/braces) are done first according to the order of operations.
Answer A

notka56 [123]4 years ago

6 0

Answer:

Step-by-step explanation:

Parenthesis

Exponents

Division

Multiplication

Addition

Subtraction

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3X +112 equals 180 solve for X

photoshop1234 [79]

Answer:

22.6-This is a repeating decimal. I just couldn't find the line for above the six.

Step-by-step explanation:

3x+112=180

3x=68

x=22.6-This is a repeating decimal. I just couldn't find the line for above the six.

5 0

3 years ago

Find slope intercept form of 5x+8y=120 passing through (4,5)

yarga [219]

Answer:

$y=-(5/8)x+(15/2)$ or $y=-0.625x+7.5$

Step-by-step explanation:

The question is

Find the slope intercept form of the line parallel to the line 5x+8y=120 passing through (4,5)

step 1

Find the slope of the given line

we have

$5x+8y=120$

isolate the variable y

$8y=-5x+120$

$y=-(5/8)x+15$

The slope of the given line is m=-5/8

step 2

Find the slope of the line parallel to the given line

we know that

If two lines are parallel, then their slopes are the same

The slope of the parallel line to given line is m=-5/8

step 3

Find the equation of the line into slope intercept form

The equation of the line into slope intercept form is equal to

$y=mx+b$

we have

m=-5/8 and point (4,5)

substitute and solve for b

$5=-(5/8)(4)+b$

$b=5+(20/8)$

$b=60/8=15/2=7.5$

substitute

$y=-(5/8)x+(15/2)$

$y=-0.625x+7.5$

5 0

3 years ago

Joe brought g gasoline for 2.75 per gallon and c cans of oil for 3.35 per can.

KatRina [158]

Answer:

Step-by-step explanation:

Let T represent the total amount spent.

The word and implies addition so the equation would be T= 2.75g+3.35c .

Now plug in the g and c values given in part b

So T= 2.75(5.8)+3.35(6)

Next simplify the expression

This is what T or the total Spent equals

3 0

3 years ago

x^2+6x+4 Which of the following is equivalent to the expression above? Justify your answer. A) (x+3)^2+5 B) (x+3)^2-5 C) (x-3)^2

vaieri [72.5K]

Answer:

B) ( x+3)² - 5

Step-by-step explanation:

Given expression

x²+6x+4

Adding '9' and subtracting '9' of given expression

⇒ x² + 2 (3) (x) +(3)² -(3)² +4

(a + b)² = a² + 2 a b + b²

⇒ ( x+3)² - 9 +4

⇒ ( x+3)² -5

4 0

3 years ago

The coordinates of a point on a coordinate grid are (−2, 6). The point is reflected across the x-axis to obtain a new point. The

Juliette [100K]

The reflected coordinate will be (-2,-6)

3 0

3 years ago

Read 2 more answers