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3 years ago

Simplify the expression: 2+(a +5) =

Mathematics

2 answers:

nekit [7.7K]3 years ago

6 0

Answer:

a+7

Step-by-step explanation:

2 + 5 = 7
7+a or a+7

Nataliya [291]3 years ago

6 0

Answer:

a=-7

Step-by-step explanation:

first we do commutative property of real number

the expression becomes ;

2+(7+a)=

then association property follow-up

(2+7)+a=

7+a=

then we minus 7 to both sides

7-7+a=-7

0+a=-7

a=-7

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pychu [463]

5.3/8.8=x/14.3
AB is x,
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3 years ago

Priya bought these items at the grocery store. Find each unit price. A. 12 eggs for $3. How much is the cost per egg? B. 3 pound

Ratling [72]

Answer: A. Cost per egg = $4 .

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Step-by-step explanation:

Formula: cost per item = (total cost) ÷ (number of items)

A. 12 eggs for $3.

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So, Cost per egg = $4 .

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So, Cost per pound = $ 2.5

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So, Cost per apple = $0.35

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3 years ago

what is the value of a for the exponential function in the graph represented in the form of f(x)=a(b^x)? Zoom in the photo bcz i

nekit [7.7K]

Answer:

$a = 3$

Step-by-step explanation:

To determine the value of $a$ , we want $b^x$ to be 1, so that $f(x) = a \times 1$ . Notice that if $x = 0$ , then $f(0) = a \times (b^0) = a$ , so the value of $a$ is simply $f(0)$ . From the graph, it appears that $f(0) = 3$ , so therefore $a = 3$ .

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2 years ago

Read 2 more answers

Point A' is the image of point A when point A is rotated about the origin B. What angle in the counterclockwise direction is

Elza [17]

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Answer:

90° CCW

Step-by-step explanation:

The slope of BA is -1/3. The slope of BA' is 3, so the slopes are opposite reciprocals of one another. These segments are perpendicular, meaning the angle between them is 90°.

Point A' has been rotated 90° CCW about point B.

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3 years ago

Find the inverse function of y=(x-2)^2 + 3. please show steps

Lunna [17]

Answer:

$f^{-1}(x)=2\pm\sqrt{x-3}$