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3 years ago

Could anyone help with with this question! Thank you so much

Mathematics

1 answer:

seraphim [82]3 years ago

3 0

70. Look at about how much approx it goes up every year, and then 4 years is after the given year so times that number and it is closest to 70.

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Jakki got a new job that guarantees her a 6% raise every year. If she started out making $40,000, how long will it be before she

shtirl [24]

Answer:

2400months

Step-by-step explanation:

6/100*40,000

maybe

6 0

3 years ago

Sarah needs to make 20 same-size tablecloths using 35 yards of fabric. How many inches of fabric will she use per tablecloth?

Illusion [34]

Answer:

63 inches per tablecloth.

Step-by-step explanation:

35 / 20 = 1.75 yards per tablecloth,

= 1.75 * 36

= 63 inches.

6 0

3 years ago

Meth Barie's ice cream shop wants to decide whether to introduce a new ice cream flavor. They randomly selected 15 customers at

Marianna [84]

Answer:

Meth Barie's ice cream shop should not introduce the new ice cream flavor.

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = 4.01

Sample mean, $\bar{x}$ = 4.4

Sample size, n = 15

Alpha, α = 0.1

Sample standard deviation, s = 1.6 minutes

First, we design the null and the alternate hypothesis

$H_{0}: \mu \leq 4.01\\H_A: \mu > 4.01$

We use one-tailed t test to perform this hypothesis.

Formula:

$t_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{s}{\sqrt{n}} }$

Putting all the values, we have

$t_{stat} = \displaystyle\frac{4.4 - 4.0}{\frac{1.6}{\sqrt{15}} } = 0.968$

Option B) 0.968

Rejection region:

Now, $t_{critical} \text{ at 0.10 level of significance, 9 degree of freedom } = 1.345$

So the rejection region would be a value of t-statistic greater than 1.345.

Option B) t > 1.345

Conclusion:

Since,

$t_{stat} < t_{critical}$

We fail to reject the null hypothesis and accept the null hypothesis. Meth Barie's ice cream shop should not introduce the new ice cream flavor.

8 0

4 years ago

If y = x3 + 3x2 + 5, what is dy/dx A. 3x2 + 6x + 5 B. 6x2 C. 6x2 D. 3x2 + 6x

Yanka [14]

You have to use these facts:

1) The derivative of a sum is the sum of the derivatives

2) d[x^n] / dx = n x ^ (n - 1)

3) d [a(f(x) ] / dx = a d [f(x)] / dx

=> d [x^3 + 3x^2 + 5] / dx = d[x^3]/dx + 3d[x^2]/dx + 0

= 3x^2 + 6x

Answer: option D. 3x^2 + 6x

6 0

3 years ago

The table shows the ratio of nuts to raisins in different snack mixes. Which graph shows these equivalent ratios?

riadik2000 [5.3K]

Answer:

figure 3

Step-by-step explanation:

see attached

x coordinates is the nuts

and y coordinates is the raisings

8 0

4 years ago

Read 2 more answers