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2 years ago

Use the two given functions to choose the best statement comparing the graphs to each other.

Mathematics

2 answers:

frutty [35]2 years ago

6 0

Answer:

i hope this helps

sergiy2304 [10]2 years ago

5 0

Answer:

Step-by-step explanation:

If we graph these 2 line on a graphing calculator we can clearly see that Function 2 has been shifted up 9 units.

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Tim installs 50 square feet of his floor in 45 minutes. At this rate how long does it take him to install 495 square feet.

Nina [5.8K]

50 sqft = 45 min
495 sqft = x min

495/50 is 9.9. So we know we multiplied 50 by 9.9 to change it to 495.
Do the same on the other side. 45 x 9.9 = 445.5.

It will take him 445.5 minutes, or 7.425 hours

7 0

3 years ago

Can you use the SSS Postulate or the SAS Postulate to prove triangle FEZ is congruent to triangle FGZ?

love history [14]

SAS only. The 3rd side cannot be proven.

8 0

3 years ago

An electric sale gives a reading equal to the true weight plus a random error that isnormally distributed with mean 0 and standa

Pepsi [2]

Answer:

a) 95% confidence interval estimate of the true weight is (3.026, 3.274)

b) 99% confidence interval estimate of the true weight is (2.944, 3.356)

Step-by-step explanation:

Confidence Interval can be calculated using M±ME where

M is the mean of five successive weightings (3.150)

ME is the margin of error from the mean

And margin of error (ME) can be calculated using the formula

ME= $\frac{t*s}{\sqrt{N} }$ where

t is the corresponding statistic in the given confidence level and degrees of freedom(t-score)

s is the standard deviation of the random error (0.1)

N is the sample size (5)

Using the numbers 95% confidence interval estimate of the true weight is:

3.150± $\frac{2.776*0.1}{\sqrt{5} }$ ≈3.150±0.124

And 99% confidence interval estimate of the true weight is:

3.150± $\frac{4.604*0.1}{\sqrt{5} }$ ≈3.150±0.206

3 0

3 years ago

(2_{1} + 4_{2})^{4} <br> ----------------------- = Plz answer<br> 2

Gnom [1K]

Answer: The answer is 1296

7 0

3 years ago

Which function has zeros at x = -2 and x = 5?

riadik2000 [5.3K]

Answer:

<em>f(x)=x²-3x-10</em>

Step-by-step explanation:

\begin{gathered}f(x) = x {}^{2} - 3x - 10 \\ to \: find \: x \: intercept \:o r \: zero \: substitute \: f(x) = 0\: \\ 0 = x {}^{2} - 3x - 10 \\ x {}^{2} - 3x - 10 = 0 \\ x {}^{2} + 2x - 5x - 10 = 0 \\ x(x + 2) - 5x - 10 = 0 \\ x(x + 2) - 5(x + 2) = 0 \\ (x + 2).(x - 5) = 0 \\ x + 2 = 0 \\ x - 5 = 0 \\ x = - 2 \\ x = 5\end{gathered}

f(x)=x

−3x−10

tofindxinterceptorzerosubstitutef(x)=0

0=x

−3x−10

−3x−10=0

+2x−5x−10=0

x(x+2)−5x−10=0

x(x+2)−5(x+2)=0

(x+2).(x−5)=0

x+2=0

x−5=0

x=−2

x=5

therefore the zeros of the equation are x₁=-2,x₂=5

3 0

1 year ago