5. what's the patternz, y, w, t,_,_,_

1 answer:

3 0

The pattern is if you write the alphabet backwards it is always going to be cross off two letters then skip a letter then cross off the letter after the letter that you skipped then skip two then cross off two letters

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Multiply (2.5x10^-10) (7x10^-6)

serious [3.7K]

We want to multiply $2.5\cdot10^{-10}$ by $7\cdot10^{-6}$ .

The numbers are written in scientific notation. So we expect the answer also to be in scientific notation.

the multiplication of the 10's, using the exponents rule is :

$10^{-10}\cdot 10^{-6}=10^{-10+(-6)}=10^{-10-6}=10^{-16}$

the multiplication of the other 2 numbers is:

$2.5\cdot7=17.5=1.75\cdot10$

(we write the number so that it has only one digit to the left of the decimal point).

Thus,

$(2.5\cdot10^{-10})\cdot(7\cdot10^{-6})=1.75\cdot10\cdot10^{-16}=1.75\cdot10^{-15}$

Answer: $1.75\cdot10^{-15}$

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4 years ago

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Express as a unit rate<br> A caribou travelled 13 km in 30 min

drek231 [11]

Answer:

= 0.43 km per min
Showing Work

This is a fraction equal to
13 km ÷ 30 min

We want a unit rate where
1 is in the denominator,
so we divide top and bottom by 30

13 km ÷ 30 min =0.43 km per minute

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4 years ago

What’s the expression for “seven times x is no more than 15”

Andru [333]

The answer is 7x≤15 because 7 times x (7x) can't be greater than 15, so the inequality would be less than or equal to because it had to be less than or equal to 15.

7x≤15

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4 years ago

8. Which of the following shows a table of equivalent ratios?

grin007 [14]

Answer:

Step-by-step explanation:

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4 years ago

Gina has been offered a job as a dog walker. The job pays $10 each week plus $5 per dog walked. Gina’s goal is to earn $75 each

Lunna [17]

Answer:

The answer is 5 dogs.

Step-by-step explanation:

If she earns $15 each week, you have to divide that with 75. 75/15=5. Thus, each week she needs to walk 5 dogs to reach her goal.

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3 years ago

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5. what's the patternz, y, w, t,_,_,_​

5. what's the patternz, y, w, t,_,_,_