Ask question

Ask question

All categories

3 years ago

5

Julia is evaluating the expression 40-6W + 2 When W= 4. What should be Julia's first step in order to evaluate the expression co

rrectly? A. multiply 6 by 4 B.add 2to 4 C.subtract 6 from 40 D. add 2 to 4

1 answer:

adoni [48]3 years ago

3 0

Answer:

A. multiply 6 by 4

Step-by-step explanation:

40-6W + 2

Let w = 4

Substitute 4 for w

40 -6(4) +2

40 - 24 +2

You might be interested in

Plz awnser because Aleks is dumb

Black_prince [1.1K]

Since you know it's a square, you also know that all the sides are 3 2/3. So to find area you multiply, so 3 2/3 x 3 2/3. An easy way to do this is convert it to a mixed number (11/3) and then multiply:
11/3 x 11/3 = 121/9

8 0

3 years ago

The difference of a number s and 6

Luda [366]

Answer:

idk

Step-by-step explanation:

What you do you have to find someone more smarter than me!

6 0

3 years ago

A sample of students from an introductory psychology class were polled regarding the number of hours they spent studying for the

Anni [7]

Answer:

$8.68,13.16$

Step-by-step explanation:

Hint- First we have to calculate the mean and standard deviation of the sample and then applying formula for confidence interval we can get the values.

Mean of the sample is,

$\mu=\dfrac{\sum _{i=1}^{24}a_i}{24}=\dfrac{262}{24}=10.92$

Standard deviation of the sample is,

$\sigma =\sqrt{\dfrac{\sum _{i=1}^{24}\left(x_i-10.92\right)^2}{24-1}}=5.6$

The confidence interval will be,

$=\mu \pm Z\dfrac{\sigma}{\sqrt{n}}$

Here,

Z for 95% confidence interval is 1.96, and n is sample size which is 24.

Putting the values,

$=10.92 \pm 1.96\cdot \dfrac{5.6}{\sqrt{24}}$

$=10.92 \pm 2.24$

$=8.68,13.16$

Confidence interval is used to express the degree of uncertainty associated with a sample.

95% confidence interval means that if we used the same sampling method to select different samples and calculate an interval, we would expect the true population parameter to fall within the interval for 95% of the time.

5 0

3 years ago

I NEED HELP ASAP. 35 POINTS. In order for two polygons to be similar, two conditions must be met. First, all pairs of correspond

galina1969 [7]

Draw a square with side length of 4. All four angles are 90 degrees and all four sides are 4.

Then draw a rectangle with length of 9 and with of 2. All four angles would be 90 degrees, but the proportion of the 2 sides are different when compared to the sides of the square.

3 0

3 years ago

Benito spent $1691 to operate his car last year. Some of these expenses are listed below. Benito's only other expense was for ga

ryzh [129]

D . it doesn't say how much he spent on gas

5 0

3 years ago

Read 2 more answers