3 years ago

Is it still blurry? or can u see it now

Mathematics

1 answer:

PilotLPTM [1.2K]3 years ago

6 0

I can see it bbbbjnjhggg

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Please help !! Find the value of x

Naily [24]

Answer:

Step-by-step explanation:

6x-3+75=180

6x=180-72

6x=108

x=108/6=18°

5 0

2 years ago

Let x = 4. What is the value of y in the equation y = 15 + 11 + x?

marishachu [46]

Okay so you have to add up 15 and 11 and 4 so your answer is y=30

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2 years ago

Consider the following hypothesis test: H 0: 20 H a: < 20 A sample of 60 provided a sample mean of 19.5. The population stand

viva [34]

Answer:

We reject the null hypothesis and accept the alternate hypothesis. Thus, it be concluded that the population mean is less than 20.

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = 60

Sample mean, $\bar{x}$ = 19.5

Sample size, n = 60

Alpha, α = 0.05

Population standard deviation, σ = 1.8

First, we design the null and the alternate hypothesis

$H_{0}: \mu = 20\\H_A: \mu < 20$

We use One-tailed z test to perform this hypothesis.

Formula:

$z_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{\sigma}{\sqrt{n}} }$

Putting all the values, we have

$z_{stat} = \displaystyle\frac{19.5 - 20}{\frac{1.8}{\sqrt{60}} } = -2.151$

Now, $z_{critical} \text{ at 0.05 level of significance } = -1.64$

Since,

$z_{stat} < z_{critical}$

We reject the null hypothesis and accept the alternate hypothesis. Thus, it be concluded that the population mean is less than 20.

5 0

3 years ago

2. Which sign makes the statement true? 00w

Furkat [3]

Answer:

4/5 is greater than 3/8, so this sign: >

3 0

3 years ago

Read 2 more answers

There are 16 girls in a school club. The number of girls is four more than twice the number of boys. Find the number of boys

lisabon 2012 [21]

16-4=12/2=6 so there’s like 6 bois

4 0

2 years ago