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Akimi4 [234]
2 years ago
8

I will mark brainliest and giving 20 points

Mathematics
2 answers:
BartSMP [9]2 years ago
8 0

Answer:

C

Step-by-step explanation:

Split the shape into normal shapes such as a rectangle and two triangles

use there formulas for area for each shape

rectangle L x W

10 x 3 = 30

for triangles it’s side a times the base divided by 2

5 x 10 / 2 = 25

so it’s 50 because there is two triangles

add 50 and 30

so it’s 80ft so C

goblinko [34]2 years ago
4 0

Answer:

C. 80

Step-by-step explanation:

5x10x.5=25

25x2=50

3x10=30

50+30=80

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1.55 ounces of granola and 0.7 ounces of raisins in each serving
5 0
2 years ago
A group of 3 friends are splitting fruit salad at a picnic. If each person gets 11 pieces, how many total pieces of fruit are th
strojnjashka [21]

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Step-by-step explanation:

4 0
2 years ago
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On a shopping trip kellen spent $3 on a bus ticket $9 on a book and $5 after the trip . How much money did he start with
BaLLatris [955]

He would have $17 9+3=12 12+5=17


4 0
3 years ago
According to a 2010 study conducted by the Toronto-based social media analytics firm Sysomos, 71% of all tweets get no reaction.
klemol [59]

Answer:

a) the expected number of tweets with no reaction is 71 tweets

b) the variance is 20.59 tweets² ( ≈ 21 tweets )and the standard deviation is

4.537 tweets (≈ 5 tweets)

Step-by-step explanation:

we can use the binomial probability distribution

P(x, N, p ) = N!/[(N-x)!x!] * p^x * (1-p)^(N-x)

where

x = number of successful events

N = population total

p = probability for success for every individual and independent event

P = probability for x successful events

in our case p = 71% = 71/100 (probability of a tweet without reaction) , N = 100 tweets

a) the expected number of tweets

E(x) = N* p = 100 tweets * 71/100 = 71 tweets

b) the variance is

V(x) = N * p * (1-p)

V = 100 * 71/100 * (1-71/100) = 71* 29/100 = 20.59 tweets² ( units of variance are [N²] )

the standard deviation is

s = √V = √20.59 tweets² = 4.537 tweets

6 0
3 years ago
Plz help i just dont get and plz do not put a file its annoying
8090 [49]

Answer:

Hello! Your answer would be, BELOW!

Step-by-step explanation:

A)

40

D)

Hope I helped! Ask me anything if you have more questions! Have a nice mourning! Brainiest plz! Hope you make an 100%! -Amelia♥

7 0
2 years ago
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