All categories

3 years ago

If y varies directly with x and y = 6 and x = -3, find y when x = 4.

Mathematics

2 answers:

Ber [7]3 years ago

8 0

Ask questions in the comment section if you have questions. I'm happy to help! <3

Step-by-step explanation:

What the question is telling you is that x and y and proportional, almost like a ratio.

Now we have to find y when x is four.

Let's create a proportional equation...

What can we divide by four to create -1/2?

Citrus2011 [14]3 years ago

6 0

Answer:

y = -8

Step-by-step explanation:

6/-3 = -2

4 * -2 = -8

y = -8

You might be interested in

The radius of a circle is 4 in . Find it’s circumference in terms of

luda_lava [24]

Answer:

8pi

Step-by-step explanation:

The formula for circumference is the radius multiplied by $2\pi$ . In this case, $4\cdot 2\pi=8\pi$ . Hope this helps!

6 0

2 years ago

What’s the square root of 108 a to the 7th power b to the 5th power

MissTica

Answer:

Step-by-step explanation:

Factor all the factors making up the square root.

108: 2*2*3*3*3

a^7: a*a*a*a*a*a*a

b^5:b * b * b * b * b

The rule for taking a square root of this is

For every pair, you get to take one number outside the root sign and throw the other one away.

2*3*a * a * a* b * b√(3*a * b)

6a^3b^2 * √(3*a*b)

4 0

3 years ago

Y=3(x-2)+1 how can i graph this into slope intercept form

liraira [26]

Answer: y=3x--5

Step-by-step explanation: First simplify by distribution and lie terms to get:

y=3x-5

3 is your slope which means every time your y goes up three your x goes across one.

-5 is your y-intercept which means (0,-5) goes through your line

3 0

2 years ago

G(a) = a + 2. Find f(-7).

anastassius [24]

Answer:

Step-by-step explanation:

g(-7) = -7 + 2 = -5

6 0

3 years ago

Samantha’s rectangular gift is 10 inches. by 12 inches and is framed with a ribbon. She wants to use the same length of ribbon t

yanalaym [24]

<u>Answer:</u>

7 inches

<u>Step-by-step explanation:</u>

The dimension of the rectangular gift is 10 by 12 inches so let us find the perimeter of this rectangle.

Perimeter of rectangular gift = 2 (L+ W) = 2 (10 +12) = 44 inches

Since we are to use the same length of ribbon to wrap a circular clock so the perimeter or circumference of the clock should be no more than 44 inches.

$2\pi r=44$

$r=\frac{44}{2\pi }$

$r=7.003$

Therefore, the maximum radius of the circular clock is 7 inches.

7 0

2 years ago

Read 2 more answers