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yuradex [85]
3 years ago
7

Question 1:

Mathematics
1 answer:
polet [3.4K]3 years ago
8 0

Answer:

1.

(0,6)

(-1,6)

(3,12)

2.

(0,4)

(-1,6)

Step-by-step explanation:

The rule for the first question is y = 2x + 6

We can substitute the numbers for each equation.

6 = 2(0) + 6

6 = 6

So (0,6) is correct.

4 = 2(-1) + 6

4 = 4

So (-1,4) is correct as well.

-4 = 2(-1) + 6

-4 ≠ 4

(-1,-4) is incorrect.

12 = 2(3) + 6

12 = 12

So this answer is correct as well.

The second question‘s rule is that y = 4 - 2x. So we can substitute the numbers.

2 = 4 - 2(-1)

2 ≠ 6

This is incorrect.

4 = 4 - 2(0)

4 = 4

This answer is correct.

6 = 4 - 2(-1)

6 = 6

This answer is correct as well.

6 = 4 - 2(1)

6 ≠ 2

This answer is incorrect as well.

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Jean writes 75,000,000 in scientific notation as 75 . Explain whether she is correct or incorrect.​
Romashka [77]

Answer:

As Jean writes 75,000,000 in scientific notation as 75.

This is INCORRECT!

The correct solution is:

75,000,000 in scientific notation: 7.5 × 10⁷

Step-by-step explanation:

As Jean writes 75,000,000 in scientific notation as 75.

This is INCORRECT!

<u>Here is the correct solution:</u>

Given the number

75,000,000

Let us write the number 75000000 in scientific notation

We know that scientific notation is of the form a\times 10^b where 1\le a and b is an integer.

Move the decimal point to the left to create a new number from 1 up to 10.

a=7.5000000

Count the number of times you moved the decimal point

b = 7

so

=7.5000000\times 10^7

Remove the trailing zeros

=7.5\times \:10^7

Therefore, we conclude that:

75,000,000 in scientific notation: 7.5 × 10⁷

3 0
3 years ago
When rounding to the nearest hundred, which of the following numbers round to 400?
LiRa [457]

Answer:

Rounding of to hundred 358, 423 and 351 are rounded to 400.

Explanation:

348

Rounding of up to hundred we get 350

Rounding of up to ten we get 400

452

Rounding of up to hundred we get 450

Rounding of up to ten we get 500

325

Rounding of up to hundred we get 330

Rounding of up to ten we get 300

423

Rounding of up to hundred we get 420

Rounding of up to ten we get 400

351

Rounding of up to hundred we get 350

Rounding of up to ten we get 400

445

Rounding of up to hundred we get 450

Rounding of up to ten we get 500

Rounding of to hundred 358, 423 and 351 are rounded to 400.

8 0
3 years ago
Read 2 more answers
Marshal is making punch for a party. He needs to make 100 servings and knows that 1 serving uses 0.75 cup of juice. How Much jui
Olin [163]

Answer:

75 cups of juice

Step-by-step explanation:

He needs 100 servings and if 1 serving makes 0.75 cups of juice, then mulitply 0.75 × 100 to find how much juice is needed:

0.75 × 100 = 75 cups of juice

6 0
3 years ago
ILL GIVE U 20 POINTS AND BRAINLIEST, pls hurry!
serious [3.7K]

Answer:

(1/2,5)

Step-by-step explanation:

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3 years ago
You volunteer to help drive children at a charity event to the zoo, but you can fit only 7 of the 18 children present in your va
yulyashka [42]

The answer is 19,448 different groups, using the formula from permutation and combinations C (n, r) = (n!) / (r! (n-r)!) which calculates the number of times where r objects can be chosen from n object.

So,

C (17,7) = (17!) / (7! *(17-7)!)

C (17,7) = (17!) / (7! *10!)

C (17,7) = (17*16*15*14*13*12*11*10!) / (7! *10!) then eliminate 10!

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C (17,7) = 19,448 different groups

3 0
4 years ago
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