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Sholpan [36]
3 years ago
14

I really need help on both of these please.

Mathematics
1 answer:
Sever21 [200]3 years ago
3 0

Answer:

d and c

Step-by-step explanation:

because they are both at the tip

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-3(10+-5)/(10-(-5))^2
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Answer:

Step-by-step explanation:

-3(10 + (-5) / (10 - (-5))^2 =

-3(10 - 5) / (10 + 5)^2

-3(5) / (15^2)

-15 / 225 reduces to -1/15

7 0
3 years ago
Find the volume and surface area of the earth if its circumference is 40 000 km
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volume = 3.24× 10 ∧12, SA = 5.09 × 10 ∧8

Step-by-step explanation:

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3 years ago
Determine whether Rolle's Theorem can be applied to f(x)=(x-1) (x-2)(x-3) on the closed interval [1,3]. Of Rolle's Theorem can b
NeX [460]

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Step-by-step explanation:

6 0
3 years ago
(a) How many integers in the range 1 through 120 are integer multiples of 2, 3, or 5? keyboard_arrow_down Solution (b) How many
Umnica [9.8K]

Answer:

(a) 88 integers

(b) 92 integers

Step-by-step explanation:

(a) integers whose last digits are divisible by 2 are multiples of two or numbers whose digits ends with zero. So for number 1-120 , all the even numbers which are sixty in number are are multiples of two.

For  3, numbers whose digits sum is divisible by three are multiples of three. 3,6,9,12,15,18,21,24,27,30 are multiples of three from numbers 1-30. we have four 30s in 120. which means numbers of integers will be 10*4 = 40integers. However out of these numbers , half are also integers of 2 which reduces the number added to 20integers.

For 5, numbers whose digits ends with 5 or 0 are multiples of 5. this gives us 24 integers for 1-120. but out of these 24integers, 16 are common integers of 2 and 3 which reduces the number added to 8integers.

Thus from 1-120 the intergers of 2,3 or 5 = 60+20+8 = 88integers.

(b) if we are considering from numbers 1-140;

for 2 we wil have 70 integers,

for 5 we will have 28 integers, but those integers that end with 0 are also integers of 2 which reduces the number added to 14.

For 7, numbers 7,14,21,28,35,42,49,56,63,70 are multiples of three from 1-70. This pattern is repeated from number 71-140. hence we have 20 integers in all. However 12 of the multiples are also multiples of either 2 or 5 which reduces the number to 8 integers.

Thus from 1-140, the integers of 2, 5, or 7 = 70+14+8 = 92integers

3 0
3 years ago
harpers house is 30 feet wide and 45 feet long on a scale drawing the house is 4 inches wide and 6 inches long and harpers bedro
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Harpers bedroom is 9 feet wide and 12 feet long
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