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alina1380 [7]
3 years ago
11

Given below is the even-number function. Which of the following are equal to E(21)? Check all that apply.

Mathematics
1 answer:
BartSMP [9]3 years ago
4 0
E(n)=2n
E(21)=2(21)
E(21)=42

B works

see others

A. E(15)+E(6)=30+12=42, yep
B. 42 is confirmed
C is wrong
D. E(11)+10=22+10=32, nope


answer is A and B
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<img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B%20%5Cfrac%7B36%7D%7B4%7D%20%7D%20" id="TexFormula1" title=" \sqrt{ \frac{36}{4}
iris [78.8K]

Step-by-step explanation:

\sqrt{36/4} =\sqrt{36} /\sqrt{4}

\sqrt{36}=6

\sqrt{4} =2

6/2=3

Hope that helps :)

7 0
3 years ago
The perimeter of a triangle is 16 to the square root of 7 feet. If the two sides measure the square root of 343 feet and the squ
Taya2010 [7]

Answer:the length of the third side is 4√7

Step-by-step explanation:

The perimeter of a triangle is 16 to the square root of 7 feet. This is expressed as

Perimeter = 16√7 feet

The perimeter of a triangle is the sum of the length of the three sides of the triangle.

If the two sides measure the square root of 343 feet and the square root of 175, which are expressed as √343 and √175, the third length would be

16√7 - (√343 + √175)

Expressing √343 as a radical, it becomes 7√7

Expressing √175 as a radical, it becomes 5√7

7√7 + 5√7 = 12√7

Therefore, the third length would be

16√7 - 12√7 = 4√7 feet

5 0
4 years ago
The manufacturer of a certain type of new cell phone battery claims that the average life span of the batteries is 500 charges;
maxonik [38]

Answer:

a. 0

b. Yes

c. The manufacturers claim is not plausible

d. 0.3446

e. A sample mean life time of 39.8hr is not unusually short.

f. The manufacturers claim us plausible

Step-by-step explanation:

Please see attachment

8 0
4 years ago
Heyy. can anyone help me ! please and thank you
RUDIKE [14]

Answer:

576 feet

Step-by-step explanation:

I'm going directly off the graph but it looks like the y-coordinate of the vertex is 576, which would make 576 feet the maximum height. Hope that helps :)

4 0
3 years ago
I need help answering
Slav-nsk [51]
13 *72.10 = 937.30 rupees

3 0
3 years ago
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