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3 years ago

8

Ivory created a scaled copy of triangle C using a scale factor of 4.What is the height of Ivory's copy?The area of the triangle

they gave me is 4.5 units

1 answer:

SOVA2 [1]3 years ago

6 0

Answer:
Height of the Ivory's copy = 12 units
Hope this helps

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Find the value of n in each of the following proportions.

Setler79 [48]

Answer:

24

Step-by-step explanation:

18/n = 21/28 You can cancel, but calculators make that unnecessary. Cross multiply

21n = 18 * 28

21n = 504 Divide by 21

n = 504 / 21

n = 24

==================

12/16 = n / 64 Cross Multiply

16n = 12 * 64

16n = 768 Divide by 16

n = 768/16

n = 48

7 0

3 years ago

6÷2(1+2)= ???????????

choli [55]

3(1+2)
3+6
9 ( the answer is nine)
first you divide six and two then use the distributive property to multiply three and one and three and two, then add three and six to get nine.

3 0

3 years ago

PUT THESE NUMBERS IN ORDER GREATEST TO LEAST ✔✔ I WILL ADD BRAINLIST

Fiesta28 [93]

Answer:

2 12/16, 2 18/25, and lastly 2.

Step-by-step explanation:

Since 2 is least, we can put that at the end. That leaves us with 2 18/25 and 2 12/16. Since 12/16 is greater, we will put that as the greatest. 2 18/25 is in the middle. Hope this helps!

6 0

3 years ago

3x^2+6x+3y^2-12y+54=0 is a ____.

alexira [117]

Answer:

radius 2

Step-by-step explanation:

8 0

3 years ago

For a group of 100 people, compute(a) the expected number of days of the year that are birthdays of exactly 3 people.(b) the exp

Scilla [17]

Answer:

Step-by-step explanation:

Leaving leap years, a year contains 365 days.

For a group of 100 people, each person is independent of the other and probability of any day being his birthday has a chance of

$\frac{1}{365}$

a) Probability that exactly 3 people have same birthday = $\frac{1}{365^3}$

Each day is independent of the other

And hence no of days having exactly 3 persons birthday out of 100 persons is binomial with n = 365 and p = $\frac{1}{365^3}$

Expected value of days = np = $\frac{1}{365^2}$

b) Distinct birthdays is binomail with p =1/365 and n = 365

Hence

expected value = np =1

4 0

3 years ago