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2 years ago

Christy dove to a depth of 12 feet below the surface of the water. Write the depth as an integer

Mathematics

1 answer:

puteri [66]2 years ago

6 0

-12 because surface is usually considered as "0" so 12 ft below the surface means -12.

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Ralph needs 6 cups of milk to make a chocolate shake for his family. His measuring device measures liquids by the pint. If 1 pin

inna [77]

Ralph will have to measure 3 pints

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3 years ago

Read 2 more answers

What is 7sqrt 28z+sqrt63z

Xelga [282]

Answer:

$17\sqrt{7z}$

Step-by-step explanation:

$7\sqrt{28z}+\sqrt{63z}\\ = 14\sqrt{7z}+3\sqrt{7z} \\= 17\sqrt{7z}$

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1 year ago

A lamp originally sold $50. The lamp is now on sale for $37.50. Wjhat is the PERCENT markdown

zlopas [31]

Answer:

25% of 100% or 25/100

Step-by-step explanation:

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4 0

3 years ago

∠1 and ∠2 are a linear pair. m∠1 = x - 29, and m∠2 = x + 61. Find the measure of each angle.

Oduvanchick [21]

So,

m<1=45, m<2=135

So the right answer is of option D.

Look at the attached picture

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3 0

2 years ago

A student repeatedly measures the mass of an object using a mechanical balance and gets the following values: 560 g, 562 g, 556

MrRissso [65]

Answer: 2.76 g

Step-by-step explanation:

The formula to find the standard deviation:-

$\sigma=\sqrt{\dfrac{\sum(x_i-\overline{x})^2}{n}}$

The given data values : 560 g, 562 g, 556 g, 558 g, 560 g, 556 g, 559 g, 561 g, 565 g, 563 g.

Then, $\overline{x}=\dfrac{\sum_{i=1}^{10} x_i}{n}\\\\\Rightarrow\ \overline{x}=\dfrac{560+562+556+558+560+556+559+561+565+563}{10}\\\\\Rightarrow\ \overline{x}=\dfrac{5600}{10}=560$

Now, $\sum_{i=1}^{10}(x_i-\overline{x})^2=0^2+2^2+(-4)^2+(-2)^2+0^2+(-4)^2+(-1)^2+1^2+5^2+3^2\\\\\Rightarrow\ \sum_{i=1}^{10}(x_i-\overline{x})^2=76$

Then, $\sigma=\sqrt{\dfrac{76}{10}}=\sqrt{7.6}=2.76$

Hence, the standard deviation of his measurements = 2.76 g

6 0

3 years ago