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3 years ago

guys I need help with this problem. I've tried solving it but everything I do is wrong please help me and explain what you did.

Mathematics

2 answers:

kolezko [41]3 years ago

7 0

Answer:

(x^2) / 21

Step-by-step explanation:

To divide a quantity by a fraction, invert the fraction and then multiply. Cancelling the "x" in the given problem does not accomplish this.

(x/3) divided by (7/x) is equivalent to (x/3) times (x/7), or x^2 / 21.

Vaselesa [24]3 years ago

6 0

Answer:

This is incorrect because when you seperate both equations, the 7/x flips to x/7. x times x does not cancel out, and the correct division gives you x²/21

Step-by-step explanation:

(x/3)/(7/x)

(x/3) ÷ (7/x)

(x/3) × x/7

x²/21

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Vector b~ has x, y, and z components of 4.4, 9.6, and 5 units, respectively. what is the angle between b~ and the x-axis?

gayaneshka [121]

The simplest vector you can take along the x-axis is $\mathbf v=langle1,0,0\rangle$ .

Now,

$\mathbf b\cdot\mathbf v=\|\mathbf b\|\|\mathbf v\|\cos\theta$

where $\theta$ is the angle between the two vectors. You have

$\mathbf b\cdot\mathbf v=\langle4.4,9.6,5\rangle\cdot\langle1,0,0\rangle=4.4$
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3 years ago

Sandra is a realtor. She makes a 4.5% commission on the value of the houses she sells. If Sandra sold $250,000

zalisa [80]

Answer:

$11250

Step-by-step explanation:

She makes a 4.5% commission on the value of the houses she sells. If Sandra sold $250,000 worth of houses.

We need to find how much she earn as her commission. Let it is x. We can calculate by finding 4.5% of $250,000. It is given by :

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So, she will earn $11250 as her commission.

3 0

3 years ago

Create two equivalent fractons for 3/4

Sveta_85 [38]

Answer:

6/8 and 9/12

Step-by-step explanation:

You can find any by multiplying numerator and denominator by any given number. The number multiplied has to be the same for the top and the bottom

1. Number is 2

3/4 * 2/2 = 6/8 (3*2 = 6 and 4*2 = 8)

2. Number is 3

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3 years ago

Solve for j.<br> 2j - k= 5

Andreas93 [3]

Answer:

j=1/2k+5/2

Step-by-step explanation:

2j−k=5

Step 1: Add k to both sides.

2j−k+k=5+k

2j=k+5

Step 2: Divide both sides by 2.

2j/2=k+5/2

j=1/2k+5/2

6 0

3 years ago

This graph shows a proportional relationship.

Nonamiya [84]

Not quite sure but:
2/3 = 3/4
divide all by 2/3 to get a 1 value so
1 = 0.8

4 0

3 years ago

Read 2 more answers