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algol13
3 years ago
5

PLEASE HELPPPP ASAPPPIf the function y=2x-8 has an input of x = -3, what is the output?

Mathematics
2 answers:
JulijaS [17]3 years ago
8 0

Answer:

y = 2*x - 8

y = 2*3 - 8

y = 6 - 8

y = -2

Hope this helps ;)

Firdavs [7]3 years ago
7 0

Answer:

-14

I used a calculator :/

Step-by-step explanation:

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What are 3 number sentences that equals 1?
wolverine [178]

Answer:

.25 X 4 = 1

.50 X 2 = 1

.10 X 10 = 1

Step-by-step explanation:

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6 0
2 years ago
The pulse rates of 174 randomly selected adult males vary from a low of 39 bpm to a high of 111 bpm. Find the minimum sample siz
Daniel [21]

Answer:

a. The sample size is approximately 97 adults

Step-by-step explanation:

The given parameters are;

The number of adults surveyed, n = 174

The lowest value of the pulse rate = 39 bpm

The highest value of the pulse rate = 111 bpm

The level of confidence used for determining the sample size = 90%

The given sample mean = 3 pm of the population mean

a. The range rule of thumb states that the standard deviation is approximately one quarter (1/4) of the range

The range = 111 bpm - 39 bpm = 72 bpm

Therefore, the standard deviation, σ = 72 bpm/4 = 18 bpm

The sample size, 'N', is given as follows;

N = \dfrac{z^2 \cdot p \cdot q}{e^2}

Where;

N = The sample size

z = The confidence level, 90% (z-score at 90% = 1.645)

p·q = σ² = 18² = 324

e² = 3² = 9

N = \dfrac{1.645^2  \times 324}{3^2} = 97.4169

Therefore the appropriate sample size, N ≈ 97 adults.

8 0
3 years ago
Help me again pls and who ever gets it correct gets 20 points plus brainliest ​
Ostrovityanka [42]

Answer:just drag across

Step-by-step explanation:

4 0
2 years ago
For which value of x is the equation 3(3 + x) = 15 + x true?
seraphim [82]

<u>Answer:</u>

x=3

<u>Step-by-step explanation:</u>

3(3 + x)=15+x

<u>distribute</u>

9 + 3x=  15+x

<u>subtract x from each side</u>

9+3x-x = 15

9+2x = 15

<u>subtract 9 from each side</u>

9+2x-9 = 15-9

2x = 6

<u>divide by 2</u>

2x/2 = 6/2

x=3

7 0
3 years ago
Read 2 more answers
Solve equation 2x+3=2x
Digiron [165]
This is an impossible equation.

If you have something and you add 3 to it, how can the result be the same as the original?
3 0
3 years ago
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