Select all of the expressions that are equivalent to 3x + 18

Answer:

(-6, -4).

Step-by-step explanation:

When you reflect coordinates over the y-axis, the x-coordinates remain the same, but the y-coordinates become their additive inverse.

The original coordinates for F are (6, -4).

The new coordinates for F would be F' (-6, -4).

The surface area for a pyramid that is: Base 8 and height 6

Would be: 42.87

Answer:

Given. 2. A bisector cuts a segment into 2. ≅ parts. 3. Intersecting lines form vertical ∠. 4. ... 3. ∠ABC = ∠ADC Angle. 4. ∆ABC ≅ ∆ADC. Reasons. 1. Given. 2. Given ... AE ≅ DF. AB ≅ CD. Prove: EC ≅ FB. Statement. 1. ∠A and ∠D are a rt ∠ ... CD bisects ∠BCA ... ∠ECA ≅ ½∠BAC and ... Given: CEA ≅ CDB, ∆ABC.

Step-by-step explanation:

Answer:

B. The sample selected from one of the populations has no effect or bearing on the sample selected from the other population.

Step-by-step explanation:

In statistical analysis, the use of independent samples for diverse studies is common.

Independent samples are such that the sample selected from one of the populations has no effect or bearing on the sample selected from the other population.

This means that samples are selected randomly in such a way that an observation obtained from a sample does not depend on the values obtained from the observation of another sample from the other population.

Answer:

a) 1,326 [tex]cm^2[/tex] will be the correct option

Step-by-step explanation:

15 x 22 x 2 = 660

22 x 9 x 2 = 396

15 x 9 x 2 = 270

660 + 396 + 270 = 1326

Answer: y = -5/8x + 6

Step-by-step explanation: The line of best fit refers to a line through a scatter plot of data points that best expresses the relationship between those points. The line of best fit is already given in this specific question, and we just have to figure out the equation of that line. The equation can be determined using the equation y=mx+b, where "y" represents the output, "m" represents the slope (vertical change compared to the horizontal change), "x" represents the input, and "b" represents the y-intercept (where the line crosses the y-axis). Since the slope (rise over run) is -5/8 and the y-intercept is (0,6), the equation of the line of best fit is y=-5/8x+6.

Answer:

d 6/7

Step-by-step explanation:

Answer:

Step-by-step explanation:

well if the clown weighs 60 lbs more than the trapeze artist...

and the trapeze artist is 2/3 the weight of the clown...

then the trapeze artist must weigh 120 lbs..

and the clown must weigh 180 lbs..

i hope this was correct lol

Answer:

2m+4

Step-by-step explanation:

[tex] \rm \mapsto - 6 + 3m + 2 - m + 8 \\ \rm \mapsto3m - m - 6 + 2 + 8 \\ \rm \mapsto2m + 4 \\ \rm \mapsto2(m + 4)[/tex]

Answer:

4+2m

Step-by-step explanation:

-6+3m+2-m+8

(-6+2+8)+(3m-m)

4+2m

Answer:

([tex]\frac{5}{2}[/tex], 3)

Step-by-step explanation:

I got 5/2 as my x variable and 3 for my y variable to being the midpoint. In which I added both my x variables provided ( 3 and 2 ) and then I divided them by two to get half of that (since you are looking for in between those two digits technically so you are wanting to find the midpoint or the middle of that line segment). I also did the same with the two y variables as well which were 7 and -1, then I divided both by two to get the variable 3.

Answer:

5/2, 3

Step-by-step explanation:

that should be your answer (hopefully)

Answer:

[tex]57\frac{3}{11}[/tex] = c

or

[tex]57.\overline{27}[/tex] = c

Step-by-step explanation:

We know that the diameter of a circle multiplied by [tex]\pi[/tex] is the circumference, so we can create this equation:

180 = c * [tex]\pi[/tex]

Your teacher told us to assume [tex]\pi[/tex] is 22/7, so we'll put that in

180 = c * [tex]\frac{22}{7\\}[/tex]

To get c by itself, we divide both sides by 22/7

[tex]\frac{180}{\frac{22}{7}}[/tex] = c

Dividing by a number is the same as multiplying by its reciprocal, so we'll multiply 180 by 7/22

180 * [tex]\frac{7}{22}[/tex] = c

Evaluate

[tex]\frac{1260}{22}[/tex] = c

[tex]57\frac{3}{11}[/tex] = c

If you want a decimal instead:

[tex]57.\overline{27}[/tex] = c

Answer:

so 4,854.47

Step-by-step explanation:

Answer:

100

Step-by-step explanation:

Answer: 2x^2+4x/3x-3

Step-by-step explanation: basically simplify the original expression : got it right on the quiz

Answer:

V=12m

Step-by-step explanation:

V=l×w×h​

V=3×4×1

V=12m

Answer:

4m*3m*3m - 2m*2m*2m

Step-by-step explanation:

Answer:

Range is [tex]-5 \le y \le 5[/tex]

Range in interval notation is  [-5, 5]

==========================================================

Explanation:

Refer to the diagram below. As marked in red, the smallest y value is y = -5. The largest y value is y = 5. The range is the set of y values between these endpoints, including both endpoints.

We can say the range is [tex]-5 \le y \le 5[/tex]

In interval notation, we write that as [-5, 5]. The use of square brackets tells the reader that the endpoints are included as part of the range.

Answer:

Question 1:

(b) 4,445

Question 2:

(c) 2.1%

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].

The margin of error is of:

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

95% confidence level

So [tex]\alpha = 0.05[/tex], z is the value of Z that has a pvalue of [tex]1 - \frac{0.05}{2} = 0.975[/tex], so [tex]Z = 1.96[/tex].

Question 1:

We have no previous estimate for the population proportion, so we use [tex]\pi = 0.5[/tex].

The sample size is n for which M = 0.015. So

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

[tex]0.015 = 1.96\sqrt{\frac{0.5*0.5}{n}}[/tex]

[tex]0.015\sqrt{n} = 1.96*0.5[/tex]

[tex]\sqrt{n} = \frac{1.96*0.5}{0.015}[/tex]

[tex](\sqrt{n})^2 = (\frac{1.96*0.5}{0.015})^2[/tex]

[tex]n = 4268[/tex]

Samples above this value should be used, and the smaller sample above this value is of 4445, so the answer is given by option b.

Question 2:

Now we find M for which [tex]n = 2222[/tex].

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

[tex]M = 1.96\sqrt{\frac{0.5*0.5}{2222}}[/tex]

[tex]M = 0.021[/tex]

So 2.1%, and the correct answer is given by option c.

Answer:

I'm pretty sure it's C.

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

I think it is B because 6 times 5 = 30. So 30 times 1/2 = 60  hope this is correct and it helped and if it is not correct try C and can i get a brainliest

Answer:

8.2

Step-by-step explanation:

sin^-1 (8.2/21) is 22.984 which is pretty close to 23

Answer:

I hope its 15/10

Step-by-step explanation:

please let me know if its wrong

Answer:

[tex]3(3 - 4x + 2y)[/tex]

Step-by-step explanation:

Find the Greatest Common Factor (GCF).

[tex]gcf = 3[/tex]

Factor out the GCF.

[tex]3( \frac{9}{3} + \frac{ - 12x}{3} + \frac{6y}{3} )[/tex]

Simplify each term in parentheses.

[tex]3(3 - 4x + 2y)[/tex]

Answer:

9/10.

Step-by-step explanation:

To determine what expression means the same as 9 divided by 10, the following logical reasoning must be carried out:

Since 9 integers are distributed among 10 dividends, this implies that these 10 will obtain a portion of those 9 integers, that is: 9/10, which gives a total of 0.90.

Answer:

[tex]x = 5 \± \sqrt{31}[/tex]

Step-by-step explanation:

Given

[tex]6 = x^2 - 10x[/tex]

Required

The solution in radical form

[tex]6 = x^2 - 10x[/tex]

Rewrite as:

[tex]x^2 - 10x - 6 = 0[/tex]

Using the quadratic formula, we have:

[tex]x = \frac{-b \± \sqrt{b^2 - 4ac}}{2a}[/tex]

Where

a = 1

b = -10

c = -6

So, we have:

[tex]x = \frac{-(-10) \± \sqrt{(-10)^2 - 4*1*(-6)}}{2*1}[/tex]

[tex]x = \frac{10 \± \sqrt{100 +24}}{2*1}[/tex]

[tex]x = \frac{10 \± \sqrt{124}}{2}[/tex]

Split the roots

[tex]x = \frac{10 \± \sqrt{4 * 31}}{2}[/tex]

Express [tex]\sqrt 4[/tex] as 2

[tex]x = \frac{10 \± 2\sqrt{31}}{2}[/tex]

Split the fraction

[tex]x = \frac{10}{2} \± \frac{2\sqrt{31}}{2}[/tex]

[tex]x = 5 \± \sqrt{31}[/tex]

9514 1404 393

Answer:

  x = 2/3

Step-by-step explanation:

The approach usually recommended for almost any problem involving fractions is to "clear fractions" first. Here, that means multiplying both sides of the equation by 2x (the least common denominator). After that, divide both sides by the coefficient of x.

  [tex]\dfrac{2}{x}=\dfrac{6}{2}\qquad\text{given}\\\\\dfrac{(2x)(2)}{x}=\dfrac{(2x)(6)}{2}\qquad\text{multiply by $2x$}\\\\4=6x\qquad\text{simplify}\\\\\dfrac{4}{6}=x\qquad\text{divide by 6}\\\\\boxed{x=\dfrac{2}{3}}\qquad\text{reduce the fraction}[/tex]

__

After you have done this a few times, you recognize that the process involves multiplying the original equation by 2x/6 = x/3. This is x times the reciprocal of the constant term on the right. You can "cut to the chase" and do multiplication of both sides by x/3 as your first step:

  [tex]\dfrac{2}{x}\cdot\dfrac{x}{3}=\dfrac{6}{2}\cdot\dfrac{x}{3}\qquad\text{multiply the given equation by $\dfrac{x}{3}$}\\\\\dfrac{2}{3}=x\qquad\text{simplify}[/tex]