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Drupady [299]
3 years ago
14

You need tile on one wall in your kitchen. The wall measures 12 feet by 5 feet. The tile cost $2 a square foot. How much money w

ill it cost for the tile on the kitchen wall?
Mathematics
1 answer:
Ivanshal [37]3 years ago
8 0

Answer:

$120

Step-by-step explanation:

Area of wall: 12*5=60 square feet

price = 60*2=$120

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Welding a heavy steel plate with a V groove joint required 1,248 ounces of filler. The plate was 3" thick and 208 " long. How ma
den301095 [7]

Answer:

c

Step-by-step explanation:

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8 0
4 years ago
Sammy is trying to determine how many triangles she can create out of a square grid that has a side of 14 inches. Use the image
saw5 [17]
Hello!

You first have to find the area of the square grid

To find this you multiply the sides

14 * 14 = 196

Next you have to find the area of the triangle

To find the area of a triangle you use the equation

\frac{hb}{2}

h is height
b is base

Put in the values you know
\frac{7 * 14}{2}

Multiply

\frac{98}{2} = 49

The area of the triangle is 49 inches squared

You divide the area of the triangle by the area of the square

196 / 49 = 4

The answer is 4 triangles

Hope this helps!
6 0
3 years ago
Find the maximum value of the function y=x^4 - x^2 +13 on the interval [-1;2]
TEA [102]

Answer: the maximum is 25.

Step-by-step explanation: a max/min can occur on the endpoints of a function and critical points of the function's derivative.

f(x)=x^4-x^2+13

f'(x)=4x^3-2x

The critical points of f'(x) occur when f'(x) is zero or undefined. f'(x) is not ever undefined in this case, so we just need to find the x values for when it's zero.

0=4x^3-2x

x=.707, -.707

Now that we have the critical points of f'(x) (.707 and -.707) and endpoints (-1 and 2), we can plug in these x values into the original function to determine its maximum. When you do this you'll find that the greatest y value produced occurs when x=2 and results in a max of 25.

4 0
3 years ago
Calculate the cost of 8 cans if 2 cans of olive oil cost 24
love history [14]

Answer:

96

Step-by-step explanation:

2 cans/24  = 8 cans/x

24 times 8/2 = 96

5 0
3 years ago
Read 2 more answers
Select 3 expressions that have a sum or difference of 3 /4 .
cupoosta [38]

Answer:

The Three expressions that have a sum or difference of 3 /4 .

B . 11/12 − 1/6

C. 3/5 + 3/20

E . 2/3 + 1/12

Step-by-step explanation:

The Three expressions that have a sum or difference of 3 /4 .

are

B . 11/12 − 1/6

\dfrac{11}{12}-\dfrac{1}{6}=\dfrac{11}{12}-\dfrac{1\times 2}{6\times 2}\\\\\dfrac{11}{12}-\dfrac{1}{6}=\dfrac{11}{12}-\dfrac{2}{12}=\dfrac{11-2}{12}=\dfrac{9}{12}=\dfrac{3}{4}

Therefore,

\dfrac{11}{12}-\dfrac{1}{6}=\dfrac{3}{4}

C. 3/5 + 3/20

\dfrac{3}{5}+\dfrac{3}{20}=\dfrac{3\times 4}{5\times 4}+\dfrac{3}{20}\\\\\dfrac{3}{5}+\dfrac{3}{20}=\dfrac{12}{20}+\dfrac{3}{20}=\dfrac{15}{20}=\dfrac{3}{4}

Therefore,

\dfrac{3}{5}+\dfrac{3}{20}=\dfrac{3}{4}

E . 2/3 + 1/12

\dfrac{2}{3}+\dfrac{1}{12}=\dfrac{2\times 4}{3\times 4}+\dfrac{1}{12}\\\\\dfrac{3}{5}+\dfrac{3}{20}=\dfrac{8+1}{12}=\dfrac{9}{12}=\dfrac{3}{4}

Therefore,

\dfrac{2}{3}+\dfrac{1}{12}=\dfrac{3}{4}

7 0
3 years ago
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