2 years ago

$35 to spend cake is $18 balloons are $4

Mathematics

1 answer:

Lera25 [3.4K]2 years ago

3 0

Answer:

he spends $22 and has $13left

Step-by-step explanation:

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A scientist wishes to estimate the mean breaking strength of a certain type of steel rod within 3.0 psi with 95% confidence. Bas

yaroslaw [1]

Answer:97 rods

Step-by-step explanation:

The number of steel rods for 95% confidence level

$n=\left ( \frac{Z_\frac{\alpha }{2}\times \hat{\sigma }}{E} \right )^2$

$Z_\frac{\alpha }{2}=1.96$

E=3

$\hat{\sigma }=15$

Substituting values

$n=\left ( \frac{1.96\times 15}{3}\right )^2$

$n=96.04\approx 97$

Thus 97 rods is tested

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3 years ago

Two numbers have a difference of 8 what is the minimum product of these numbers

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weeeeeb [17]

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Reduce 36/45 to lowest terms and write the numerator in the blank.

saveliy_v [14]

4/5 is your answer

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3 years ago

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Find the distance between each pair of points <br>L(-7,0) ,Y(5,9)

Sedbober [7]

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Step-by-step explanation:

To find the distance between L and Y find the difference in the x and y coordinates then square them and add them to find their square root.

-7-5= -12

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144 + 81 = d^2

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2 years ago