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3 years ago

Factor the expression below. A. (x − 6)(x − 6) B. 6(x2 − x + 6) C. (x − 6)(x + 6) D. (x + 6)(x + 6)

Mathematics

1 answer:

Yanka [14]3 years ago

5 0

Step-by-step explanation:

X(x+6) - 6(x+6)

X+6x-6x-36

X-36

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Lucy's pet snake eats 2 mice a week how many mice will she eat in 6 weeks

alexgriva [62]

What we know: Lucy's snake eat's 2 mice a week.

To find the answer, you'll have to multiply 2 by 6.

So, since Lucy's snake eats 2 mice a week for 6 weeks.

To find the amount of mice her snake has eaten in the past 6 weeks you'll have to multiply 2 and 6.

2x6=?

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

The first week the snake ate 2 mice.

The second week the snake ate 2 mice.

The third week the snake ate 2 mice.

The fourth week the snake ate 2 mice.

The fifth week the snake ate 2 mice.

The sixth week the snake ate 2 mice.

Your answer would be: 12

5 0

3 years ago

A sound wave is traveling at 6,420m/s and has a frequency of 600Hz. What is the wavelength?

GaryK [48]

Answer:

10.7 m

Step-by-step explanation:

Given that,

The speed of a sound wave, v = 6,420 m/s

The frequency of the wave, f = 600 Hz

We need to find the wavelength of the wave. We can find it using the below relation as follows :

$v=f\lambda\\\\\lambda=\dfrac{v}{f}\\\\\lambda=\dfrac{6420}{600}\\\\\lambda=10.7\ m$

So, the wavelength of the sound wave is equal to 10.7 m.

4 0

3 years ago

jarptica [38.1K]

Answer:

3 gallons

Step-by-step explanation:

Let

x ----> the amount of pure acid (100% solution) in gallons

Remember that

$100\%=100/100=1$

$20\%=20/100=0.20$

$60\%=60/100=0.60$

we know that

$(1)(x)+(0.20)(3)=(0.60)(x+3)$

solve for x

$x+0.60=0.60x+1.80$

$x-0.60x=1.80-0.60\\0.40x=1.20\\x=3\ gal$

therefore

3 gallons of pure acid should be mixed with 3 gallons of a 20% acid solution in order to get a 60% acid solution

7 0

3 years ago

Find the ratio if y:x if 3x=11y

Finger [1]

Answer:

11:3

Step-by-step explanation:

For every 11 y there is 3x

6 0

3 years ago

Read 2 more answers

Last month in the village of 125 people we’re issued a parking ticket. This month only 83 people were issued one. What was the p

natita [175]

Answer:

the percent reduction is <u>33.6%</u> and the number of people who were issued a parking ticket are <u>42</u>.

Step-by-step explanation:

Given:

Last month in the village of 125 people were issued a parking ticket.

This month only 83 people were issued one.

Now, to find the percent reduction from this month to last month and the number of people who were issued a Parking ticket.

So, the reduction of the number of people who were issued a Parking ticket from this month to last month are:

125 people - 83 people = 42 people.

Thus, 42 people reduction from this month to last month.

Now, to get the percent reduction:

$\frac{42}{125}\times 100.$

$=\frac{4200}{125}$

$=\ 33.6\%$

Therefore, the percent reduction is 33.6% and the number of people who were issued a parking ticket are 42.

7 0

3 years ago