3 years ago

Noah was doing some homework and answer the following question 5.5• - 3/5 =

Mathematics

1 answer:

Naddika [18.5K]3 years ago

6 0

Answer:

-33/10 or -3.3

Step-by-step explanation:

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Which of the following is a solution of x^2 2x = −2?

dem82 [27]

$x^2+2x=-2\\
x^2+2x+1=-1\\
(x+1)^2=-1\\
x+1=\sqrt{-1}\vee x+1=-\sqrt{1}\\
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$

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3 years ago

I need help with this I don't understand this

Mandarinka [93]

Answer:

45.8

Step-by-step explanation:

We need to find the surface area for this entire figure!

We can see that this is a pyramid here - we must find the area of the 3 triangles and the base triangle at the bottom.

The 3 triangles building up the pyramid are all equal to each other.

To find the area of a triangle, use $Area = base*height/2$

$Area=3(\frac{5*7}{3} )+(\frac{5*4.3}{2})\\Area=35+10.75=45.75$

Round to the nearest tenth: 45.75 -> 45.8

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Use complete sentences to describe the domain of the cosine function.

Hatshy [7]

The domain of a function is the set of the possible input values of the function. For example: consider the function f(x) = cos x, the domain of the function is the set of possible values of x.

The cosine function takes x values from all real numbers.

Therefore, the domain of the cosine function is a real numbers.

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Adele has 3 64-ounce cartons of orange juice and 3 48-ounce cans of apple juice. How much juice does she have altogether?

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She has 6 ounce of cans

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What is the answer in feet to this question

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