I have been struggling on this can anyone help?

what how am I solving do I simplify

Answer:

A. x - 4

D. x + 8

Step-by-step explanation:

To find the two binomial that are factors of the trinomial, you split the middle term into two:

[tex]x^2[/tex] + 4x - 32

[tex]x^2[/tex] - 4x + 8x - 32

Group:

([tex]x^2[/tex] - 4x)  (8x - 32)

Take out GCF (Greatest Common Factor):

x(x - 4)  8(x - 4)

(x + 8) (x - 4)

Answer:

DIFFERENCE – The difference of two numbers is the result of subtracting these two numbers. PRODUCT – The product of two or more numbers is the result of multiplying these numbers. QUOTIENT – The quotient of two numbers is the result of the division of these numbers.

Step-by-step explanation:

Answer:

2(a*b)-a/b

Step-by-step explanation:

So, read the problem and anlyze it.

To simplify what it says: The difference (subtraction), of twice the product(multiplacation) , and quotient of a & b.

So:

2(a*b)- a/b

Keep in mind that, they are not asking for twice of a/b. Only tice of the multiplacation part. They are asking the difference between both!

10) a. 130

Step-by-step explanation:

[tex]180 - 50 = 130[/tex]

Answer:

C

Step-by-step explanation:

The range of a function is all of the y values of every point. In this case, that is 4, 6, 8, -5 (C). Hope that helps!

Answer:

The answer is C

Step-by-step explanation: 4 and 6 are the medium numbers. -5 and 8 and the lowest and highest nuumbers.

1.

Looks like

[tex]y=2\sqrt[3]{x}+\dfrac1{x^2}+\pi[/tex]

Write [tex]\sqrt[3]{x}[/tex] as a fractional power, [tex]x^{1/3}[/tex]. This makes it more obvious that the power rule should be used here.

[tex]y'=(2x^{1/3})'+(x^{-2})'+\pi'[/tex]

[tex]y'=\dfrac23x^{-2/3}-2x^{-3}[/tex]

[tex]y'=\dfrac2{3\sqrt[3]{x^2}}-\dfrac2{x^3}[/tex]

2.

[tex]y=(\sin(2x)+\tan(3x))^e[/tex]

Power and chain rule:

[tex]y'=\left((\sin(2x)+\tan(3x))^e\right)'[/tex]

[tex]y'=e(\sin(2x)+\tan(3x))^{e-1}(\sin(2x)+\tan(3x))'[/tex]

[tex]y'=e(\sin(2x)+\tan(3x))^{e-1}(\cos(2x)(2x)'+\sec^2(3x)(3x)')[/tex]

[tex]y'=e(\sin(2x)+\tan(3x))^{e-1}(2\cos(2x)+3\sec^2(3x))[/tex]

Answer:

2.80

Step-by-step explanation:

Take the cost and divide by the number of padlocks

25.20/9

2.80

Each padlock costs 2.80

Answer:

$2.80

Step-by-step explanation:

25.20 is the total price, and there are 9 padlocks, so to get the price of each padlock, divide 25.20 by 9

25.20/9=2.8

write your answer in dollars: $2.80

Answer:

34% of lightbulb replacement requests numbering between 47 and 52

Step-by-step explanation:

The Empirical Rule states that, for a normally distributed random variable:

68% of the measures are within 1 standard deviation of the mean.

95% of the measures are within 2 standard deviation of the mean.

99.7% of the measures are within 3 standard deviations of the mean.

In this problem, we have that:

Mean = 52

Standard deviation = 5

Between 47 and 52:

52 is the mean and 47 is one standard deviation below the mean.

By the Empirical Rule, 68% of the measures are within 1 standard deviation of the mean.

Since the normal distribution is symmetric, of those, 34% are within 1 standard deviation below the mean and the mean(47 and 52) and 34% are within the mean and one standard deviation above the mean(52 and 57).

So

34% of lightbulb replacement requests numbering between 47 and 52

Answer:3/56

Step-by-step explanation:

5/8-4/7

(35-32)/56

3/56

Answer:

Option B

Step-by-step explanation:

Although the difference is quite small (72 seconds—or just over a minute), the effect was statistically significant (P-value < 0.0001).

Since the P-value was less than 0.0001, the null hypothesis in this case can be rejected (H₀: ∪=12.3), concluding that the startup company has moderate/enough evidence that their AAA batteries last longer, on average.

Answer:

Step-by-step explanation:

We would set up the hypothesis test. This is a test of a single population mean since we are dealing with mean

For the null hypothesis,

µ = 12.3

For the alternative hypothesis,

µ > 12.3

This is a right tailed test.

The decision rule is to accept the null hypothesis if the significance level is lesser than the p value and reject the null hypothesis if the significance level is greater than the p value.

Let us assume a significance level of 0.05.

Since alpha, 0.05 > than the p 0.0001, then we would reject the null hypothesis.

The correct option would be

A) The startup company has strong evidence that their AAA batteries last longer, on average.

N=8

1/2 x (8+4) = 6

1/2 x 12 = 6

Answer:

j

Step-by-step explanation:

Answer:

B, E, and F

Step-by-step explanation:

The other answer choices are questions you should ask after you have gotten the answer, not when you are trying to understand the problem.

Hope this helped! :)

Answer:

boo just search the formula dud

its A though

Answer:

6/10

Step-by-step explanation:

Step-by-step explanation:

8. Let's call the number x. We can set up the equation -3x - 5 = -10. Adding 5 to both sides, we have -3x = -5, and when we divide both sides by -3, we have x = 5/3.

9. Again, we'll call the number x. The equation is 2x - 3 = -13. We can write -3 instead of +(-3) because adding a negative number is the same as subtracting. Adding 3 to both sides, we have 2x = -10, and dividing bu -2, we have x = -5. Hope this helps!

Answer:

  b) dV/dt = c * dT/dt

Step-by-step explanation:

Differentiating the equation with respect to time, you have ...

  V = cT

  dV/dt = c·dT/dt . . . . matches choice B

Answer:13.2277

Step-by-step explanation:

Did it on iready

Answer:

6000

Step-by-step explanation:

Answer:24

Step-by-step explanation:

fdgwgwrgwg

Answer:

5x - 17

Step-by-step explanation:

3 + 5x - 20

= 5x - 17

Answer:

a) z = 2.327

b) The margin of error is of 0.065.

c) The 98% confidence interval for the true population proportion of all New York State union members who favor the Republican candidate is (0.3083, 0.4383).

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of [tex]\pi[/tex], and a confidence level of [tex]1-\alpha[/tex], we have the following confidence interval of proportions.

[tex]\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]

In which

z is the zscore that has a pvalue of [tex]1 - \frac{\alpha}{2}[/tex].

For this problem, we have that:

[tex]n = 300, \pi = \frac{112}{300} = 0.3733[/tex]

a) 98% confidence level

So [tex]\alpha = 0.02[/tex], z is the value of Z that has a pvalue of [tex]1 - \frac{0.02}{2} = 0.99[/tex], so [tex]z = 2.327[/tex] is the critical value.

b)

The margin of error is:

[tex]M = z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]

So, applying to this question:

[tex]M = 2.327\sqrt{\frac{0.3733(1-0.3733)}{300}} = 0.065[/tex]

The margin of error is of 0.065.

c) Find confidence interval for the problem.

[tex]\pi - M = 0.3733 - 0.065 = 0.3083[/tex]

[tex]\pi + M = 0.3733 + 0.065 = 0.4383[/tex]

The 98% confidence interval for the true population proportion of all New York State union members who favor the Republican candidate is (0.3083, 0.4383).

Answer:

No more lonely time

Step-by-step explanation:

I have shriek to keep me company in bed;)

Answer:

- Something unpredictable -

Step-by-step explanation:

I would just scream all day about my appearance

Answer:

12

Step-by-step explanation:

Area= base*height

Area= 6*2

Answer:

12cm

Step-by-step explanation:

hight & Base=6 cm & 2 cm

Formula for area: hight×base=6 cm×2 cm

12cm

Answer:

8.5%

Step-by-step explanation:

Answer:

8.5%

Step-by-step explanation:

0.085

1: Ignore the 0 and take the numbers that is 85

2: Add a percent

3: Answer is 8.5%

Hope this helps.

Answer:

x=2

Step-by-step explanation:

3*2=6

6-6=0

-12

Answer:

Step-by-step explanation:

First we compute [tex]9^n[/tex], for [tex]n = 0,1,2,3,4,5[/tex]

[tex]9^0=1,9^1=9,9^2=81,9^3=729,9^4=6561,9^5=59049[/tex]

We have the unit digit of [tex]9^n[/tex], is either 1 or 9

Therefore, the conjecture can be state as follows

Conjecture; the unit of digit of [tex]9^n[/tex], is 1, when n is even and 9 when n is odd

Let the property p(n) be the formula;

"The unit digit of [tex]9^n[/tex], is 1 when n is even and 9 when n is odd"↔ P(n)

To show p(n) is true , we will use strong mathematical inductive

Show tgat p(0) and p(1) are true

We have  to show the unit digit of [tex]9^0[/tex] is 1 and [tex]9^1[/tex] is 9

Since any integer with zero power is one and hence

[tex]9^0=1[/tex] and [tex]9^1 = 9[/tex]

Therefore, p(0) and p(1) are true

Show that for al integer [tex]k\geq 1[/tex], if  p(i) is true for all integer i from o through k, then p(k+1) is also true

let k be any integer with [tex]k \geq 1[/tex] and suppose that for all integer i with [tex]0 \leq i \leq \leq k[/tex]

the unit digit of [tex]9^i[/tex] is 1 when is even and 9 when n is odd

we must show that [tex]9^{k +1}[/tex] equals 1 when n is even and 9 when n is odd

Case I; (k +1 is odd)

in this case k is even and so, by inductive hypothesis, the unit digit of [tex]9^k[/tex] is 1 and hence there is some non negative integer q such that

[tex]9^k = 10q + 1[/tex]

now, [tex]9^{k+1}=9^k(9)[/tex]

= (10q + 1)9

= 90q + 9

= 10.9q + 9

Note that for any non negative integer q , 9q is also an integer and this implies the unit digit of [tex]9^{k+1}[/tex] is 9

Case II

(k +1 is even)

in this case k is odd and so, by inductive hypothesis, the unit digit of [tex]9^k[/tex] is 9 and hence there is some non negative integer q such that

[tex]9^k=10q+9[/tex]

Now,

[tex]9^{k+1}=9^k.9\\=(10q+9)9\\=90q+81\\=10(9q+8)+1[/tex]

Note that any non negative integer q, 9q + 8 is also an integer and this implies the unit of [tex]9^{k+1}[/tex] is 1

Since we have proved both the basis and the inductive step of the strong mathematical induction, we conclude that the given statement is true