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zaharov [31]
2 years ago
7

Given quadrilateral QRST - quadrilateral HIJK, QR = 10, QT = 6, and HI = 8, find KH.

Mathematics
2 answers:
Leto [7]2 years ago
5 0

Answer:

B. 24/5

Step-by-step explanation:

Hope this helps

Elis [28]2 years ago
3 0

Answer:

B. 24/5

Step-by-step explanation:

QR = 10

QT = 6

HI = 8

Quadrilateral QRST ~ quadrilateral HIJK, therefore, their corresponding side lengths would be proportional to each other.

This:

QR/HI = QT/HK

Plug in the values

10/8 = 6/HI

Cross multiply

10*HI = 8*6

10*HI = 48

Divide both sides by 10

HI = 48/10

HI = 24/5

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48% of US adults have very little confidence in newspapers you randomly selected 10 US adults. Find the probability that the num
aivan3 [116]

Answer:

P(x = 5) = 0.2441

Step-by-step explanation:

Given

p = 0.48 --- proportion that have very little confidence

n = 10 --- sample

Required

Determine the probability that exactly 5 have very little confidence

This question will be solved using binomial probability:

P(x) = ^nC_xp^x(1-p)^{n-x}

In this case: x = 5.

So, we have:

P(x = 5) = ^{10}C_5*0.48^5(1-0.48)^{10-5}

P(x = 5) = ^{10}C_5*0.48^5*0.52^5

P(x = 5) = 252*0.48^5*0.52^5

P(x = 5) = 0.2441

7 0
3 years ago
What the answer to the question
ruslelena [56]

Answer:

c

Step-by-step explanation:

When we know two sides and the included angle, there is a formula we can use.

We know angle C = 35º, and sides a = 20cm and b = 19.5cm.

using the formula

Area =(½)ab sin C(angle)

Put in the values we know:

(20×19.5÷2)×sin(35)=

111.8474050885 cm^2

rounded = 111.85 cm^2

answer is c

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