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3 years ago

14

These are a couple of random questions, so I can complete this math packet. Your help is all I need.

2 answers:

9966 [12]3 years ago

7 0

7. 19.68, so c. 19.7
8. b. 7.7

antoniya [11.8K]3 years ago

4 0

7.
Convert 41% into a decimal:

$41 \div 100 = 0.41$

Multiply 48 by this decimal:

$0.41 * 48 = 19.7$

The answer is 19.7.

8.
Convert 35% into a decimal:

$35 \div 100 = 0.35$

Multiply 22 by this decimal:

$0.35 * 22 = 7.7$

The answer is 7.7.

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A triangular window is above the door to a cafe. The base of the window is 12 ft, and the height is 10 ft. What is the area of t

Luba_88 [7]

120 ft is the area cuz 12*10 is 120

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3 years ago

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What is the value of a^3 - b^2 for a = 3 and b = 1/2

Semenov [28]

<span>a^3 - b^2 for a = 3 and b = 1/2
</span>3^3 - (1/2)^2
= 27 - 1/4
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4 0

3 years ago

WORTH 25 POINTS!!!!!!!!!!!!!!!!!!!!

Zepler [3.9K]

70%=70/100=7/10

what you do is shade 7 of the squares and say that is 21
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3 years ago

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Simplify (x + 5)2 using the square of a binomial formula.

Olegator [25]

Answer:

$x^2 + 10x + 25$

Step-by-step explanation:

Hello!

Formula: $(a +b)^2 = a^2 + 2ab + b^2$

a = x
b = 5

Plug it into the formula and simplify.

<h3>Simplify</h3>

$(a +b)^2 = a^2 + 2ab + b^2$
$(x +5)^2 = x^2 + 2(x)(5) + 5^2$
$(x +5)^2 = x^2 + 10x + 25$

The answer is the first option: $x^2 + 10x + 25$ .

7 0

2 years ago

A dress that is size x in France is equaivalent to size d(x) in the United States, where d(x)x32.

kobusy [5.1K]

Answer:

$(a)\ d'(x) = x + 32$ i.e. The inverse function

$(b)\ d'(10) = 42$ i.e. The French size of a dress if it is U.S. size 10 is 42.

Step-by-step explanation:

Given

$d(x) = x - 32$

Solving (a): The inverse function

$d(x) = x - 32$

Replace d(x) with y

$y = x - 32$

Swap y and x

$x = y - 32$

Make y the subject

$y = x + 32$

Replace y with d'(x)

$d'(x) = x + 32$

Hence, the inverse function is: $d'(x) = x + 32$

Solving (b): US size of 10

$d'(x) = x + 32$

Substitute $x =10$

$d'(10) = 10 + 32$

$d'(10) = 42$

4 0

3 years ago