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2 years ago

Ez points- 2.72 divided by 3

Mathematics

1 answer:

ASHA 777 [7]2 years ago

5 0

Answer:

2.72/3=0.907 (correct to three decimal places)

Step-by-step explanation:

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A middle school has 470 students. Regina surveys a random sample of 40 students and finds that 28 have cell phones. How many stu

Dmitry [639]

So from that i think the formula would be
$\frac{x}{470} = \frac{28}{40}$
so then you find "x" by multiplying 470 x 28 which equals 13,160. Then you divide 13,160 by 40 which equals 329.
X=329
329 students are likely to have phones

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3 years ago

Read 2 more answers

Find the value of x to the nearest tenth.

Klio2033 [76]

Answer:

x =20.8

Step-by-step explanation:

We can find the value of 1/2 of x using the Pythagorean theorem

a^2 + b^2 = c^2

a^2 + 6^2 = 12^2

a^2 = 36+144

a^2 = 108

Take the square root

sqrt(a^2) = sqrt( 108)

a =sqrt(36*3)

a = sqrt(36) sqrt(3)

a = 6sqrt(3)

Now x = 2 times the length of a

x = 2 * 6 sqrt(3)

x = 12 sqrt(3)

x =20.78460969

x =20.8

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2 years ago

A conjecture is an educated guess

Kitty [74]

Answer:

the angle abc is 180 degrees

5 0

2 years ago

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Form a sequence that has two arithmetic means between -1 and 59.

9966 [12]

Answer:

Correct choice is B

Step-by-step explanation:

For the numbers -1 and 59, find the difference 59-(-1):

since 59-(-1)=60 and $\dfrac{60}{3}=20$ (two arithmetic means tells you there will be three intervals), two arithmetic means will be

-1+20=19;
19+20=39.

The only correct sequence is -1, 19, 39, 59.

7 0

3 years ago

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Sketch the graph of y = negative 2 x squared + x + 1 using your graphing calculator. What are the x-intercepts of this graph? a.

lions [1.4K]

The x-intercept is (1, 0) and (-0.5, 0).

The correct option is (a)

<h3>What is intercept?</h3>

The x-intercept is the point where a line crosses the x-axis, and the y-intercept is the point where a line crosses the y-axis.

Given function is:

f(x)= $-2x^{2}+x+1$