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WARRIOR [948]
3 years ago
15

Which of the following sets represents M∪N?

Mathematics
1 answer:
Mnenie [13.5K]3 years ago
4 0
What are the following sets?
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Y varies directly with the square x. If y= 27 when x = 3, find y when x = -4
Lana71 [14]

Answer:

y~x²

y/x²= k

27/3²=3

therefore k= 3

y/ -4 = k

y / -4= 3

3y = -4

y = -4

6 0
3 years ago
Jasmyn uses 42% of a gift card to buy groceries if she spent $67.20 on groceries, how much was on the gift card to begin with
lapo4ka [179]

Answer:

The card was worth $160.

Step-by-step explanation:

It is given that:

Percent of gift card used = 42%

Cost of groceries = $67.20

Let,

x be the total amount on gift card.

42% of x = 67.20

\frac{42}{100}x=67.20

0.42x = 67.20

\frac{0.42x}{0.42}=\frac{67.20}{0.42}\\x=160

Therefore,

The card was worth $160.

4 0
3 years ago
eric is making a dress. the design calls for a right triangular piece of material. if the second angle has to be 35% what is the
svet-max [94.6K]
U have a right triangle...so one angle is 90%......and the second angle is 35%...keep in mind, the angles of a triangle = 180%
so the measure of the third angle is : 180 - 90 - 35 = 55%
3 0
3 years ago
Please help Assssaaaappp!!! <br> almost due and im having trouble.
USPshnik [31]
A. Nancy has the greatest spread because her longest training time was 105 and her shortest being 82, making the spread 23, and Peter’s spread is only... Longest: 112 Shortest: 92 making it 20!
b. Nancy. Middle %50 would be Peter’s 110-92 making the spread 18, and Nancy’s spread is 93-90 making the spread making it 12
c. The spreads tell us they are very close to each other, and just Peter has more time but a less spread than Nancy.
3 0
2 years ago
The producte of x and the sum of 6 and 8 times the square of x
seraphim [82]

Product is multiplication.

The first part would be x(6+8) , x times the sum of 6 plus 8.

The second part would be written as x^2, the square of x

Now combine to get:

x(6+8) * x^2

7 0
3 years ago
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