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4 years ago

13

What is 21 divided by 2 + 1 times 5 mines 2 to the fourth power?

2 answers:

ollegr [7]4 years ago

7 0

You should start by putting parentheses around (21÷2) +1(5) - 2⁴

Sever21 [200]4 years ago

3 0

Answer:

IT is 41.5 heres the steps

Step-by-step explanation:

first step 21 divided by 2 = 10.5

Then you do 10.5 + 1 = 11.5

then you do 11.5 times 5 = 57.5

Then 2 times 2 times 2 times 2= 16

then 16 - 57.5 = 41.5 is your answer

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The area of each triangular face of this right triangular prism is 8cm^2(squared).

otez555 [7]

Nothing is shown.
The triangle is a right triangle, 9, 12 & 15.
The triangle's area = b*h/2 = 9*12/2 = 54 sq meters each end.

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The 3 rectangles are 10 by 9, 12 & 15
Area of the 3 = 10*(9 + 12 + 15) = 360 sq meters
-----
Total area = 360 + 2*54
= 468 sq meters

8 0

3 years ago

Given f(x) = e^x and g(x) = x – 2, what is the range of (g*f)(x)

frutty [35]

For this case we have the following functions:

$f (x) = e ^ x\\g (x) = x-2$

By definition we have to:

$(f * g) (x) = f (x) * g (x)$

Substituting:

$(f * g) (x) = e ^ x (x-2)$

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ANswer:

(-∞,∞)

Graphic attached

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3 years ago

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Yuki888 [10]

Answer:

try 36?

Step-by-step explanation:

5 0

3 years ago

3.<br> The perimeter of a square garden is 12 km. Find its area.

7nadin3 [17]

Answer:

the area of the garden is 9 square kilometers

Step-by-step explanation:

4s=12

s=3

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3 0

4 years ago

Read 2 more answers

Show that the equation x^3 + x -3 =0 has a solution between 1 and 2. That is the only information given

valentina_108 [34]

Answer:

Step-by-step explanation:

Given that:

$f(x) = x^3 + x - 3 = 0$

Since the given function is equal to zero, then the function :

$f(x) = x^3 + x - 3$

where;

$x = 1$ and

$x = 2$

$f(x) = (1)^3 + (1) - 3 \\ \\ f(x) = 1 + 1 - 3 \\ \\f(x) = -1 < 0$

$f(2) = x^3 + x - 3 \\ \\f(2) = (2)^3 + 3 - 3 \\ \\f(2) = 8 + 3 - 3 \\ \\f(2) = 11 - 3 \\ \\f(2) = 8 > 0 \\ \\$

Thus; f(1) < 0 and f(2) > 0

8 0

3 years ago