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kap26 [50]
3 years ago
5

Please help me solve

Mathematics
2 answers:
ruslelena [56]3 years ago
6 0

Answer:

Step-by-step explanation:

So for this we have to find the percentage by using 'percentage of error'

If at first it was 15 then it went up to 19 we have to subtract 15 - 19= -4

Ignore the negative. Now divide= 4/19= 0.21

The size went up by 21%

mariarad [96]3 years ago
6 0

Answer:

21%

Step-by-step explanation:

U subtract 15 and 19 Because It increased 15 - 19= -4

Ignore the negative. Divide= 4/19= 0.21

The size went up by 21%

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Let there exists a point (x, y) on the given line.

Slope of all points must be same, as they lie on the same line.

=> (y - 1)/(x - 2) = (4 - 1)/(-4 - 2)

=> (y - 1)/(x - 2) = - 1/2

=> y - 1 = (-½) (x - 2)

Option 1 is the correct option

7 0
3 years ago
About 20​% of babies born with a certain ailment recover fully. a hospital is caring for sixsix babies born with this ailment. t
alisha [4.7K]

Answer :

Yes, the experiment is a binomial experiment because it satisfies all the four characteristics of the binomial experiment :

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5 0
3 years ago
ZA and ZB are complementary angles. If mZA = (7x + 23)° and
Marat540 [252]

Answer:

ZB= 39°

Step-by-step explanation:

complementary angles are angles that add up to equal 90

equation:  7x + 23 + 5x + 19 = 90

add like terms: 12x + 42 = 90

subtract 42 from both sides: 12x = 48

divide both sides by 12: x = 4

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5 0
3 years ago
3(4a + 2) = 2(a - 2)?
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Answer:

A= -1

Step-by-step explanation:

8 0
3 years ago
If x=9 and y=−3, evaluate the following expression:7(2x−3y)​
LuckyWell [14K]

Answer:

189

Step-by-step explanation:

You can replace the values of x with 9 and the values of y with (-3).

7(2x-3y) = 7(2 × 9 - 3 × -3)

             = 7(18 - -9)

             = 7(18+9)

             = 7 × 27

             = 189

7 0
3 years ago
Read 2 more answers
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