All categories

3 years ago

What is the answer to this? 4 x (3-2) + 18 PLEASE HURRY UP!!

Mathematics

2 answers:

Sunny_sXe [5.5K]3 years ago

8 0

Answer:

Step-by-step explanation:

4x(3-2)+18

4x(1)+18

4+18

4x+18

Alina [70]3 years ago

5 0

Answer:

Step-by-step explanation:

4 x (3-2) + 18

PEMDAS says parentheses first

4 x (1) + 18

Then multiply and divide

4 +18

Then add and subtract

You might be interested in

A town has two sneaker factories, Sneakerheadz and Nukicks. While Nukicks was closed on Sunday, Sneakerheadz made 900 pairs of s

Scilla [17]

Answer:

Sneakerheadz produced 900 pairs on Sunday. And on Monday, they produced shoes at a rate of 300 per hour.

Then the total number of pairs produced is:

S(t) = 900 + 300*t

where t represents the number of hours worked on Monday.

We know that Nuckicks only worked on Monday, and the same amount of time as Sneakerheadz, but at a rate of 480 sneakers per hour.

We can write the total number of pairs as:

N(t) = 480*t

Now we know that Nukcicks produced in Monday the sane number of pairs than Sneakerheadz produced in the two days, then we have that:

S(t) = N(t)

900 + 300*t = 480*t

900 = 480*t - 300*t = 180*t

900/180 = t

5 = t

So the factories operated 5 hours on Monday.

8 0

3 years ago

Help please !!!!!!!!!!

harkovskaia [24]

Answer:

[see below]

Step-by-step explanation:

Using the Pythagorean Theorem:

$6^2+4.5^2=m^2\\\\36+20.25=m^2\\\\5\boxe6.25=m^2\\\\\boxed{m=7.5}$

Hope this helps.

6 0

4 years ago

Read 2 more answers

What is 2+2?? 1 2 3 4 5 6

dusya [7]

Answer:

4 lol

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

A random sample of 64 SAT scores of students applying for merit scholarships showed an average of 1400 with a standard deviation

melamori03 [73]

Answer:

$\bar X \pm t_{\alpha/2}\frac{s}{\sqrt{n}}$ (1)

The point estimate of the population mean is $\hat \mu = \bar X In order to calculate the critical value [tex]t_{\alpha/2}$ we need to find first the degrees of freedom, given by:

$df=n-1=64-1=63$

Step-by-step explanation:

Previous concepts

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".

The margin of error is the range of values below and above the sample statistic in a confidence interval.

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

$\bar X=1400$ represent the sample mean

$\mu$ population mean (variable of interest)

s=240 represent the sample standard deviation

n=64 represent the sample size

Solution to the problem

The confidence interval for the mean is given by the following formula:

$\bar X \pm t_{\alpha/2}\frac{s}{\sqrt{n}}$ (1)

The point estimate of the population mean is $\hat \mu = \bar X In order to calculate the critical value [tex]t_{\alpha/2}$ we need to find first the degrees of freedom, given by:

$df=n-1=64-1=63$

5 0

4 years ago

Juliet is trying to increase her savings account and she decides that she is going save an additional $700 every month. If her m

Lelechka [254]

It is not specified how much she was saving before...
If 0 than it is D 70/543

5 0

4 years ago

Read 2 more answers