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Zinaida [17]
3 years ago
7

Heeeelp please I'm desperate

Mathematics
1 answer:
____ [38]3 years ago
3 0

Answer:

A = 108 ft²

Step-by-step explanation:

the length of the smaller rectangle must be 9 (27÷3)

therefore, the ratio of length to width is 3/9 and if the polygons are similar then the length and width of the larger shape would be 6/18

18 x 6 = 108

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The sum of two numbers is 150 the ratio of the same number is 3:2 find the bigger number
Paladinen [302]
3x-\ bigger\ number\\
2x-\ smaller\ number\\\\
3x+2x=150\\\\
5x=150\ \ \ | divide\ by\ 5\\\\
x=30\\\\
3x=3*30=90\\\\ Bigger\ number\ is\ 90.
5 0
3 years ago
Maggie and jillian are both collecting postcards. Maggie has 4 times as many postcards as jillian. Maggie has 40 postcards.
Simora [160]

Answer:

10

Step-by-step explanation:

braniyest pls

5 0
2 years ago
If at a toy store, 2 board games cost $13.40, what is the unit price of a board game?
olganol [36]

Answer:

The unit price of a board game is $6.70

Step-by-step explanation:

1 board/2boards = x/13.4

Cross multiply:

13.4*1/2x

13.4/2x

x=6.7

Hope this helps plz hit the crown :D

7 0
2 years ago
Pairs of P-values and significance levels, α, are given. For each pair, state whether the observed P-value would lead to rejecti
lubasha [3.4K]

Answer:

(a) P-value = 0.074, α = 0.05 do not reject H0

(b) P-value = 0.006, α = 0.001 do not reject H0

(c) P-value = 0.494, α = 0.05 do not reject H0

(d) P-value = 0.074, α = 0.10 reject H0

(e) P-value = 0.028, α = 0.01 do not reject H0

(f) P-value = 0.296, α = 0.10 do not reject H0

Step-by-step explanation:

The p-value is used to determine the statistical significance of the results of a statistical test. The p-value is the probability that the null hypothesis is correct. Smaller the p-value, higher is the probability that the alternate hypothesis is correct. On the other hand, the significance level (α) is the probability of rejecting the null hypothesis when it is true. It is the risk that you are willing to take in saying that there are differences between groups when there are not. 

In order to reject the null hypothesis, the p-value should be lower than the significance level (α).

7 0
3 years ago
Hi! Please help me and explain!
Orlov [11]

Distance formula sqrt((x2-x1)^2 + (y2-y1)^2))

Sqrt((4-2)^2+(-7+3)^2)

Sqrt(2^2+4^2)

Sqrt(4+16)

Sqrt(20)

2sqrt5.

The second choice is the correct answer.

3 0
2 years ago
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