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2 years ago

What is the answer for:X=29-3(9-4)

Mathematics

1 answer:

skad [1K]2 years ago

4 0

the answer is.....

$x = 14$

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If two supplementary angles are in the ratio of 4:5 the measure of the larger angle is

dimulka [17.4K]

Answer:

Step-by-step explanation:

Let the angles be 4x , 5x

4x + 5x = 180 { supplementary}

9x = 180

x = 180/9

x = 20

Larger angle= 5x = 5* 20 = 100

6 0

2 years ago

It is known that 60% of customers will need additional maintenance on their vehicle when coming in for an oil change. A random s

inn [45]

Answer:

the probability that more than 70% of customers in the sample will need additional maintenance is 0.0371

Step-by-step explanation:

From the information given:

we are to determine the probability that more than 70% of customers in the sample will need additional maintenance

In order to achieve that, let X be the random variable that follows a binomial distribution.

Then X $\sim$ Bin(48, 0.6)

However 70% of 48 samples is

= 0.7 × 48 = 33.6 $\simeq$ 34

Therefore, the required probability is:

= P(X> 34)

$= \sum \limits ^{48}_{x=34} (^{48}_{x}) (0.6)^x(1 - 0.6)^{48-x}$

$= \dfrac{48!}{34!(48-34)!} (0.6)^{34} (0.4)^{48-34}$

$= 4.823206232 \times 10^{11} (0.60)^{34}(0.4)^{14}$

= 0.03709524328

$\simeq$ 0.0371

3 0

3 years ago

In Evan's math class, there are 7 boys and 10 girls. Which of the following is the ratio of boys to girls in Evan's math class?

Taya2010 [7]

Answer:

7/17

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

If someone offers you a lottery ticket that has a 25 percent chance of winning $100, a 50 percent chance of winning $200, and a

g100num [7]

Answer: $375

Step-by-step explanation:

Given : The probability of winning $100 : P(100)= 0.25

The probability of winning $200 : P(200)= 0.50

The probability of winning $1000 : P(1000)= 0.25

Now, the the expected value of that lottery ticket is given by :-

$P(100)\times 100+P(200)\times200+P(1000)\times1000\\\\=0.25\times100+0.50\times200+0.25\times1000\\\\=375$

Hence, the the expected value of that lottery ticket =$375

3 0

2 years ago

PLEASE HELP ⚠️⚠️

sattari [20]

Answer:

Elena could tell without finishing by simplifying both sides. The next step would have been 30x +24x = 30x+24. This would have been simplified down to x=1

Step-by-step explanation:

6 0

2 years ago