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3 years ago

the land speed record for one mile is seven hundred sixty-three and thirty-five thousandths mile per hour

Mathematics

1 answer:

Ksenya-84 [330]3 years ago

6 0

Do you want the numbers? If so, it is 763.35 :)

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How do you find the mean for 10 31 36 36 38 42 47 48 49 52

Lana71 [14]

Answer: 38.9

Step-by-step explanation:

Add all the numbers together and divide the sum by how many numbers there are.

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2 years ago

What is the domain of the function y=√4x+8<br> Can you show your work too, please? (:

kirill115 [55]

$y= \sqrt{4(x+2)}$
$y = 2 \sqrt{x+2}$

The domain would be -2, the x-intercept.

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2 years ago

Write 9.55 as a mixed number

jeka57 [31]

9.55 as a mixed number would be 9 11/20.

9.55 = 9 55/100 = 9 11/20

Hope this helps !

7 0

2 years ago

A large container holds 4 gallons of chocolate milk that has to be poured into 1-pint bottles. If the ratio of gallons to pints

MrMuchimi

Seen 4 gallons are being turned into pints it easy just need to do 4x8 which = 32 because 1 gallons = 8 pints!

4 0

2 years ago

Read 2 more answers

Question 15 (5 points)<br> Find the angle between u = <7, -2> and v= (-1,2>.

Tema [17]

Answer:

Approximately $2.3127$ radians, which is approximately $132.51^{\circ}$ .

Step-by-step explanation:

Dot product between the two vectors:

$\begin{aligned}& u\cdot v \\ =\; & 7 \times (-1) + (-2) \times 2 \\ =\; & (-11) \end{aligned}$ .

Magnitude of the two vectors:

$\begin{aligned} \| u \| &= \sqrt{{7}^{2} + {(-2)}^{2}} \\ &= \sqrt{53} \end{aligned}$ .

$\begin{aligned} \| v \| &= \sqrt{{(-1)}^{2} + {2}^{2}} \\ &= \sqrt{5} \end{aligned}$ .

Let $\theta$ denote the angle between these two vectors. By the property of dot products:

$\begin{aligned} \cos(\theta) &= \frac{u \cdot v}{\|u\| \, \| v \|} \\ &= \frac{(-11)}{(\sqrt{53})\, (\sqrt{5})} \\ &= \frac{(-11)}{\sqrt{265}}\end{aligned}$ .

Apply the inverse cosine function ${\rm arccos}$ to find the value of this angle:

$\begin{aligned} \theta &= \arccos\left(\frac{u \cdot v}{\| u \| \, \| v \|}\right) \\ &= \arccos\left(\frac{(-11)}{\sqrt{265}}\right) \\ & \approx \text{$2.3127$ radians} \\ &= 2.3127 \times \frac{180^{\circ}}{\pi} \\ &\approx 132.51^{\circ}\end{aligned}$ .

8 0

2 years ago