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3 years ago

23. Cynthia used some of the ordered pairs from the set below to make a new set.

Mathematics

1 answer:

tangare [24]3 years ago

3 0

Answer:

(5,4), (2, -7), (4, -3)

Step-by-step explanation:

The first option is (-2,5), (7,2), (5, 4).

The domain for this pair of ordered pairs is {-2,5,7}

The second set is (5,4), (2, -7), (4, -3)

The domain is {2,4,5}

The third set is (2, -7), (4, -3), (-2,5), (5, 4)

The domain is {-2,2,4,5}

The fourth set is (4,-3), (-2,5), (5,4), (7,2)

The domain is {-2,4,5,7}

Therefore the correct choice is the second option

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Len [333]

(1.) 35-3m
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35-3m
= 35-3(4)
= 35-12 (do the multiple/division first before doing the addition/subtraction)
= 23

C. 23

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x = 80

1 + x ÷ 5
= 1+80÷5
= 1+16
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(3.) mx-y
m=5, x=3, and y=8

mx-y
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(4.) 3a+15+bc−6
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3a+15+bc-6
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3 years ago

56 = ?×?×?×? i want to know what number ecual yo 56 by multiplying it 4 times to get your answer

erma4kov [3.2K]

Answer:

4 * 14 = 56

Step-by-step explanation:

56/2 = 28

28/2 = 14

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7/7 = 1

56 = 2 * 2 * 2 * 7

56 = (2 * 2) * (2 * 7)

56 = 4 * 14

7 0

2 years ago

One safe investment pays 8% per year, and a more risky investment pays 12% per year.

Mice21 [21]

Principal = 109,000

Return - 9,920

Return = (principal x rate x time)/100

X = the amount invested at 12%

Then 102000- x = the amount invested at 8%

9920 = (x*12)/100 + (109000-x*8)100

x = 30,000

a) 30,000 is invested at 12%

79,000 is invested at 8%

b) The 12% investment is riskier so if all the money was in that account the investor could lose all his money.

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2 years ago

A model aeroplane costs £3.40. James gets a special deal. When he buys two airplane, he saves 20% of the total price. How much d

max2010maxim [7]

The answer is $1.36 because you have to add $3.40+3.40 because he buys two airplanes. Afterwards you multiply times .20 and get 1.36 because you always have to move 20% two places to the left

3 0

3 years ago

brooklyn bought 8 bags of the same dog food. She has a $5 coupon. She spent $91. How much was each bad of dog food?

blsea [12.9K]

Answer:

$12

Step-by-step explanation:

Hi there!

What we know:

Brooklyn bought 8 bags of dog food
Brooklyn also used a $5 coupon
The total was $91

Therefore, 8 × (cost of 1 bag) - 5 = 91

Form an equation with x as the cost of 1 bag of dog food:

8 × (cost of 1 bag) - 5 = 91

$8x-5=91$

Add 5 to both sides

$8x-5+5=91+5\\8x=96\\$

Divide both sides by 8

$\frac{8x}{8} = \frac{96}{8} \\x=12$

Therefore, 1 bag of dog food costs $12.

I hope this helps!

5 0

3 years ago