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kramer
3 years ago
8

Which of the following pairs of values for x and y would justify the claim that the two triangles are congruent? x = 3, y = 11 x

= 5, y = 5 x = 7, y = 9 x = 9, y = 7
answer= A, x=3, y=11
Mathematics
1 answer:
irinina [24]3 years ago
7 0

Answer:

A

Step-by-step explanation:

just got it right

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2 pyramids have a volume of 8 and the larger volume is 343<br> what is the scale factor
Mice21 [21]

Answer

i think its 42.875

step-by-step explanation:

divide 343 by 8 i think

7 0
3 years ago
Joe heard from a reliable source that only 22% of people actually sleep 8 hours or more per night. You do a survey and find 58 o
Juliette [100K]

Answer:

95% Confidence interval:  (31.32%,47.04%)

Step-by-step explanation:

We are given the following in the question:

Sample size, n = 148

Number of people who sleep for 8 hours or longer, x = 58

\hat{p} = \dfrac{x}{n} = \dfrac{58}{148} = 0.3918

95% Confidence interval:

\hat{p}\pm z_{stat}\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}

z_{critical}\text{ at}~\alpha_{0.05} = 1.96

Putting the values, we get:

0.3918\pm 1.96(\sqrt{\dfrac{0.3918(1-0.3918)}{148}})\\\\ = 0.3918\pm 0.0786\\\\=(0.3132,0.4704)=(31.32\%,47.04\%)

(31.32%,47.04%)  is the required 95% confidence interval.

8 0
3 years ago
Plz answer ASAP tysm !
Alex777 [14]

Answer:

I already did

Step-by-step explanation:

6 0
3 years ago
Correct and best answer gets brainliest.
Nuetrik [128]
Im pretty sure the answer is c) 136
4 0
3 years ago
Read 2 more answers
Find the slope of the given points (2,5) and (8,-3) and write the equation​
max2010maxim [7]

Answer:

Slope = \frac{-4}{3}

4x + 3y = 23

Step-by-step explanation:

slope = \frac{y_{2}-y_{1}}{x_{2}-x_{1}}=\frac{-3-5}{8-2} =\frac{-8}{6} =\frac{-4}{3}

The equation:

\frac{y-y_{1} }{x-x_{1} }=m   m is the slope

y-y_{1}=m(x-x_{1} )

y - 5 = -4/3 (x - 2) Multiply both sides by 3

3y -15 = -4 (x - 2)  

3y - 15 = -4x + 8

3y + 4x = 8 + 15

3y + 4x = 23

4x + 3y = 23

7 0
3 years ago
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