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Vinvika [58]
3 years ago
8

Plz help me with this

Mathematics
1 answer:
Salsk061 [2.6K]3 years ago
4 0

Answer:   \bold{b)\quad \dfrac{x+3}{4}}

<u>Step-by-step explanation:</u>

y=4x-3\\\\\text{Swap the x's and y's. Then solve for y:}\\x=4y-3\\\\\text{Add 3 to both sides:}\\x+3=4y\\\\\text{Divide both sides by 4:}\\\large\boxed{\dfrac{x+3}{4}=y}

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Is 0.1875 closer to 1/8 or 1/4 inch on a number line?
svetlana [45]

It is closer to 1/4.

Hope this helps.

-TheOneandOnly003


7 0
3 years ago
Rewrite this number sentence 50 1/2 divided by 1/4 using multiplication
Shalnov [3]
This division question is asking how many 1/4 you can fit into 50 1/2.

We can fit 4 of them into 1 whole (4 x 1/4 = 1)
We can fit 8 of them into 2 wholes (8 x 1/4 = 2)

and so on.

But we have 50 1/2 wholes, so we would need 50 1/2 x 4.

The new number sentence is 50 1/2 x 4.
3 0
3 years ago
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State the domain of the function.
oksian1 [2.3K]
I’m pretty sure its the final option. (-2, -1, 0, 1, 2)
3 0
2 years ago
A simple random sample with n = 58 provided a sample mean of 24.5 and a sample standard deviation of 4.4. (Round your answers to
nasty-shy [4]

Answer: (23.53, 25.47)

Step-by-step explanation:

The confidence interval for population mean(when population standard deviation is unknown) is given by :-

\overline{x} \pm\ t^*\dfrac{s}{\sqrt{n}}

, where \overline{x} = sample mean

n = sample size.

s = sample standard deviation.

t* = Critical value.

Given : \overline{x}=24.5

s= 4.4

Confidence level = 90% =0.090

Significance level = \alpha=1-0.90=0.10

Sample size : n= 58

Degree of freedom : df= n-1= 57

Using t-distribution table , the critical value :

t_{\alpha/2,\ df}= t_{0.05,\ 57}=1.6720

Then, the confidence interval will be :-

24.5 \pm\ (1.6720)\dfrac{4.4}{\sqrt{58}}

24.5 \pm\ (1.6720)\dfrac{4.4}{7.61577310586}

24.5 \pm\ 0.965995165263\approx24.5\pm0.97\\\\=(24.5-0.97,\ 24.5+0.97)\\\\=(23.53,\ 25.47)

Hence, a 90% confidence interval for the population mean = (23.53, 25.47)

6 0
4 years ago
Can you please factorize 2x²+6x
Arisa [49]

<u>To factorize something</u>:

 ⇒ need to simplify the equation to its most basic form

<u>Let's solve</u>:

  2x^2+6x=2(x^2+3x)=2x(x+3)

Thus the factorized form is ⇒ 2x(x+3)

<u>Answer: 2x(x+3)</u>

<u></u>

Hope that helps!

3 0
2 years ago
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