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2 years ago

Find the value of 9 - 6x when x = -9.

Mathematics

2 answers:

sergij07 [2.7K]2 years ago

7 0

Answer:

-63 is the answer.

Alex Ar [27]2 years ago

7 0

Answer:

Step-by-step explanation:

x= -9

9-6(-9) = 9+54 =63

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Jesselyn made 6 muffins. She used 3/8 teaspoon of baking powder for each muffin. How much baking powder did Jesselyn use for all

bezimeni [28]

Answer:

Step-by-step explanation:

Multiply the number of muffins by how much baking powder is in each muffin. That's read as 6/1 × 3/8 which equals 18/8.

6 0

1 year ago

Question 8 Find the unit vector in the direction of (2,-3). Write your answer in component form. Do not approximate any numbers

slamgirl [31]

Answer:

The unit vector in component form is $\hat{u} = \left(\frac{2}{\sqrt{13} },-\frac{3}{\sqrt{13}} \right)$ or $\hat{u} = \frac{2}{\sqrt{13}}\,i-\frac{3}{13}\,j$ .

Step-by-step explanation:

Let be $\vec u = (2,-3)$ , its unit vector is determined by following expression:

$\hat {u} = \frac{\vec u}{\|\vec u \|}$

Where $\|\vec u \|$ is the norm of $\vec u$ , which is found by Pythagorean Theorem:

$\|\vec u\|=\sqrt{2^{2}+(-3)^{2}}$

$\|\vec u\| = \sqrt{13}$

Then, the unit vector is:

$\hat{u} = \frac{1}{\sqrt{13}} \cdot (2,-3)$

$\hat{u} = \left(\frac{2}{\sqrt{13} },-\frac{3}{\sqrt{13}} \right)$

The unit vector in component form is $\hat{u} = \left(\frac{2}{\sqrt{13} },-\frac{3}{\sqrt{13}} \right)$ or $\hat{u} = \frac{2}{\sqrt{13}}\,i-\frac{3}{13}\,j$ .

6 0

2 years ago

PLS help I will give brainliest

Savatey [412]

Answer: 1= X = 8

2= X = 6

3= X = 7

4= X= 9/13 or X= 0.692307

Step-by-step explanation: hope this helps pls mark me brainliest

6 0

2 years ago

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Mr. King divides his entire class into 8 stations. He assigns 4 students to each station. How many students are in the class?

weqwewe [10]

Answer:

32 students are in the class.

Step-by-step explanation:

8 * 4 = 32

Hope this helped! Have a nice day! Plz mark as brainliest!!! :D

-XxDeathshotxX

8 0

2 years ago

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What fraction of an hour is 45 minutes? Give your answer in its simplest form.

Dvinal [7]

Answer:

3/4

Step-by-step explanation:

1 hour is 60 minutes

45 minutes

---------------------

60 minutes

Divide top and bottom by 15

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3 0

2 years ago