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frutty [35]
3 years ago
12

What is the domain of the function y=√4x+8 Can you show your work too, please? (:

Mathematics
1 answer:
kirill115 [55]3 years ago
6 0
y=  \sqrt{4(x+2)}
y = 2 \sqrt{x+2}

The domain would be -2, the x-intercept. 
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Find the coordinates of the midpoint between the two points.
Pani-rosa [81]

Answer: (-3,-3)

Step-by-step explanation:

(3+-9)/2=-3

(1+-7)/2=-3

4 0
3 years ago
Simplify i^38 ????????
stich3 [128]

Answer:

i is defined as the square root of -1.

i^2 = -1

i^3 = -i

i^4 = 1

Following the pattern, we see that i^40 = 1, so i^38 is two above, or equal to -1.

So, i^38 = -1.

Let me know if this helps!

4 0
3 years ago
Answer these questions.<br> 45% of 40 is 18% of what number?
Furkat [3]

Answer:

45% of 40 is 18% of <em>100</em>

Step-by-step explanation:

Let 45% of 40 = 18% of <em>x</em> .

Taking LHS (Left Hand Side):

45% of 40

\Rightarrow \dfrac{45}{100} \times 40\\\Rightarrow \dfrac{1800}{100}\\\Rightarrow 18 ...... (1)

Taking RHS(Right Hand Side):

18% of x

\Rightarrow \dfrac{18}{100} \times x\\\Rightarrow 0.18 \times x ...... (2)

Equating (1) and (2):

18 = 0.18 \times x\\\Rightarrow x= \dfrac{1800}{18}\\\Rightarrow x = 100

Hence, 45% of 40 is 18% of <em>100.</em>

8 0
3 years ago
The ratio can depict a part of a whole, or less than 100%. The ratio can also depict more than
charle [14.2K]

Answer:

100% =200

divide both by 100 to find 1%

1%= 2

multiply by 5 to find 5%

5%=10

200=100%

divide both by 200 to find 1

1=0.5%

multiply both by 150 to find percentage

150=75%

3 0
3 years ago
What is the volume of a sphere with a radius of 3.1 cm, rounded to the nearest tenth
NeX [460]
The answer is 124.79 centimeters
Rounded to the nearest tenth It’s 124.8
3 0
3 years ago
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