3 years ago

Solve system of equations

Mathematics

1 answer:

kotykmax [81]3 years ago

8 0

1.) x= 3

2.) y= -1

3.) z= negative 4/3

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Rewrite the quadratic function in standard form and give the vertex f(x)=3x^2-6x-9

pickupchik [31]

Answer:

y=3(x-1)^2-12

Step-by-step explanation:

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3 years ago

Find the median, first quartile, third quartile, and interquartile range of the data.

serious [3.7K]

Answer:

Step-by-step explanation:

Median: 88

First Quartile: 84

Third Quartile: 92

Interquartile Range: 8

I hope this helps :)

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2 years ago

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Find the area under the standard normal distribution curve for each.

yawa3891 [41]

From the standard normal tables, obtain
P(z<1.95) = 0.9744
P(z<0.37) = 0.6443
P(z<1.32) = 0.9066
P(z<1.82) = 0.9656
P(z<1.05) = 0.8531
P(z<2.05) = 0.9798
P(z<0.03) = 0.5120
P(z<0.53) = 0.7019

Answers:
Range of z Area
-------------- ---------------------------------------
a. 0 - 1.95 0.9744
b. 0 - 0.37 0.6443
c. 1.32 - 1.82 0.9656 - 0.9066 = 0.0590
d. 1.05 - 2.05 0.9798 - 0.8531 = 0.1267
e. 0.03 - 0.53 0.7019 - 0.5120 = 0.1899

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3 years ago

Jose can read 7 pages of his book in 5 minutes. At this rate, how long will it take him to read the entire 175 page book?

Vesnalui [34]

175/7=25
25x5=125 the answer is 125

5 0

2 years ago

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2 1/6 - (-8/3) + (-4 7/9) =

Vladimir [108]

Answer:

1/18

Step-by-step explanation:

First make it so they all have the same denominator.

So...

2 3/18 - (- 48/18) + (- 4 14/18)

Then we remove parenthesis...

2 3/18 +48/18 - 4 4/18

1/18

hope this helps

brainliest?

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2 years ago