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3 years ago

B) What is the 4 times of the sum of 3and9?

Mathematics

2 answers:

Sliva [168]3 years ago

7 0

I’m confuse about the question I don’t know you mean in equation but 4(x+3)= 9

Mashcka [7]3 years ago

3 0

Answer:

108

Step-by-step explanation:

sum is a fancy word for add so 3+9=27 and 27*4=108

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Sin(x2 + y2) da r , where r is the region in the first quadrant between the circles with center the origin and radii 2 and 5

sweet [91]

Converting to polar coordinates gives

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$=-\cos(r^2)\bigg|_{r^2=4}^{r^2=25}$
$=\pi(\cos4-\cos25)$

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3 years ago

A restraint has one type of lemonade that is 12% sugar and another that is 7% sugar. How many gallons of each type does the rest

Xelga [282]

Answer:

Step-by-step explanation:

I have answers to whole packet:

1.D

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5.C

6.D

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10.B

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13.A

14.B

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7 0

3 years ago

A rancher has 2 comma 200 feet of fencing to enclose a rectangular pig pen. However, one side of the pen lies along a river and

DiKsa [7]

Answer:

$A = 2200x - 2x^2$

Step-by-step explanation:

Let's x be the length of the side that is NOT the same as the side along the river (or in opposite). From the fencing perimeter of 2200ft we can calculate the other side y of the rectangular:

y = 2200 - 2x

The area A of the pen would be the product of the 2 sides

$A = xy = x(2200 - 2x) = 2200x - 2x^2$

7 0

3 years ago

A scientist needs 4.8 liters of a 12% alcohol solution. She has available a 22% and a 10% solution. How many liters of the 22% a

yanalaym [24]

Answer:

4.0 L of 10%
0.8 L of 22%

Step-by-step explanation:

For mixture problems, it is convenient to define a variable to represent the amount of the greatest contributor. Let x represent the amount of 22% solution in the mix. Then 4.8-x is the amount of 10% solution.

The amount of alcohol in the mix is ...

0.22x +0.10(4.8-x) = 0.12(4.8)

Eliminating parentheses, we have ...

0.22x -0.10x +0.10(4.8) = 0.12(4.8)

Subtracting (0.10)(4.8) and combining x-terms gives ...

0.12x = 0.02(4.8)

x = (0.02/0.12)(4.8) = 0.8 . . . . . divide by the x-coefficient

The scientist needs 0.8 L of 22% solution and 4.0 L of 10% solution.

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3 years ago

A game system allows players to design a personal picture. Each picture is designed by choosing from male or female, 8 face shap

astra-53 [7]

Answer:

The number of possible pictures:

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Hope this helps!

6 0

3 years ago

B) What is the 4 times of the sum of 3and9? ​

B) What is the 4 times of the sum of 3and9?