Which represents the solution(s) of the equation x2 = 289?

A) x =
17
B) x = ±
17
C) x = −
289
D) x = ±
289

Answers

Answer 1

Answer:

B) x = +/- 17

Step-by-step explanation:

Answer 2

Answer:

it D

Step-by-step explanation:

I took the usatestprep


Related Questions

A spinner with four equal quadrants labeled A, B, C, and D is spun. What is the theoretical probability of the spinner NOT landing on the letter C?

Answers

Answer:

3/4, 75% chance

Step-by-step explanation:

you have four in total, three of which are not c, so you have a three out of four chance of NOT picking c. 3/4 as a percentage is 75%

Answer:

25%

Step-by-step explanation:

On MobyMax its 25%

look at the picture below

Answers

Answer:

180x cubic feet

Step-by-step explanation:

Multiply 15, 12 and x together.

Answer:

180x

Step-by-step explanation:

you multiply 12 and 15 and x.

What value of y makes the equation below true?

2y−25=19

A


A) 44





B) 22





C) −3





D)−6

Answers

The answer is B, 22.

Answer:

B is the answer I Know it is wright

Step-by-step explanation:

so you add 25 and 19 and then divide 44 and 2 and get 22

There are 162 calories in 3/4 cup of yogurt. How many calories are in 1 cup?

Answers

162 / 3 = 54

54 x 4 = 216

There are 216 calories in one cup of yogurt

Final answer:

There are 216 calories in 1 cup of yogurt.

Explanation:

To find out how many calories are in 1 cup of yogurt, we can use the given information that there are 162 calories in 3/4 cup of yogurt. We can set up a proportion to solve for the number of calories in 1 cup:

(3/4 cup) / (162 calories) = (1 cup) / (x calories)

By cross-multiplying, we get:

3/4 * x = 162 * 1

Simplifying the expression:

3x/4 = 162

Multiplying both sides of the equation by 4/3:

x = (162 * 4) / 3 = 216 calories

Therefore, there are 216 calories in 1 cup of yogurt.

Lateral surface area of a cylinder with a radius of 3 and a height of 8

Answers

The answer will be 150.8

Answer: AL≈150.8

Step-by-step explanation:

AL=2πrh

AL=2π3(8)

AL=2π24

AL=150.8 Rounded up

What are period and amplitude for the function

PLEASE ANSWER BOTH QUESTIONS I WILL GIVE You the

Answers

Answer: Period: 4. Amplitude: 3

Step-by-step explanation: The period is how long it takes for one cycle of the function (one up and down). In this graph, one cycle ends at 4.

The amplitude is how far away the extremes of the graph are from the midline. This graph is a total of 6 units tall, making the amplitude 3. (I usually find total graph height and divide by 2.)


The graphed line can be expressed by which equation?y+2=23(x+2) y−2=34(x−1) y−1=−34(x−2) y−2=34(x−2)

Answers

For this case we have that by definition, the equation of a line in the point-slope form is given by:

[tex]y-y_ {0} = m (x-x_ {0})[/tex]

Where:

[tex](x_ {0}, y_ {0}):[/tex]It is a point through which the line passes

m: It is the slope of the line

According to the graph we have that the line goes through the following points:

[tex](x_ {1}, y_ {1}) :( 4,2)\\(x_ {2}, y_ {2}): (- 2, -2)[/tex]

We found the slope:

[tex]m = \frac {y_ {2} -y_ {1}} {x_ {2} -x_ {1}} = \frac {-2-2} {- 2-4} = \frac {-4} {- 6} = \frac {2} {3}[/tex]

We choose a point:

[tex](x_ {0}, y_ {0}): (-2, -2)[/tex]

The equation of the line is:

[tex]y - (- 2) = \frac {2} {3} (x - (- 2))\\y + 2 = \frac {2} {3} (x + 2)[/tex]

ANswer:

[tex]y + 2 = \frac {2} {3} (x + 2)[/tex]

Option A

Solve the equation:
x² – 2x² – 15x=0

Answers

Answer: x=0, x²=0

Step-by-step explanation:

Answer:

x=3 and x=5/2

Step-by-step explanation:

which statements are true of functions? check all that apply

Answers

What statements do we check their none

Answer:

All functions have a dependent variable.

All functions have an independent variable.

A horizontal line is an example of a functional relationship.

Step-by-step explanation:

i did it n got it right yayyyyyyyy

Solve the system of linear equations using elimination. −2x − y = 3 −9x − y = 17
A) (2, 1) B) (2, −1) C) (−2, 1) D) (−2, −1)

Answers

Answer:

x = -2 , y = 1

Step-by-step explanation:

Solve the following system:

{-2 x - y = 3 | (equation 1)

-9 x - y = 17 | (equation 2)

Swap equation 1 with equation 2:

{-(9 x) - y = 17 | (equation 1)

-(2 x) - y = 3 | (equation 2)

Subtract 2/9 × (equation 1) from equation 2:

{-(9 x) - y = 17 | (equation 1)

0 x - (7 y)/9 = -7/9 | (equation 2)

Multiply equation 2 by -9/7:

{-(9 x) - y = 17 | (equation 1)

0 x+y = 1 | (equation 2)

Add equation 2 to equation 1:

{-(9 x)+0 y = 18 | (equation 1)

0 x+y = 1 | (equation 2)

Divide equation 1 by -9:

{x+0 y = -2 | (equation 1)

0 x+y = 1 | (equation 2)

Collect results:

Answer: {x = -2 , y = 1

Answer:

C) (−2, 1)

Step-by-step explanation:

Name the property illustrated in this statement. If y - 2 = -8. then y - 2 + 2 = -8 + 2.

Answers

10

Step-by-step explanation:

first what is 10 take away 2 is 8 then 10 take away 2 is 8 + 2 equals 10 8 + 2 equals 10 so that's how I got the answer 10

Robyn bought the following items in a supermarket. Can you help Robyn round each price to the nearest dollar. Item Actual Price Round to Nearest Dollar $ 34.70 $ $ 278.22 $ $ 45.89 $ 8.38

Answers

Answer:

$34.70 rounded to $35, $278.22 rounded to $278, $45.89 rounded to $46, $8.38 rounded to $8.

Step-by-step explanation:

Help please!!! Find the sum of the series show your work

Answers

Answer:

[tex]\sum_{i=1}^{12}(3i-1) = 222[/tex]

Step-by-step explanation:

The given series is

[tex]\sum_{i=1}^{12}(3i-1)[/tex]

The first term is

[tex]f(1) = 3 \times 1 - 1 = 2[/tex]

The last term is

[tex]f(12) = 3 \times 12 - 1 = 35[/tex]

To find the number of terms in the sequence, solve,

[tex]3i - 1 = 35[/tex]

[tex]3i = 36 \\ i = 12[/tex]

The sum of the first i-terms of an arithmetic sequence is:

[tex]S_i = \frac{i}{2} (f(1) + f(2))[/tex]

We substitute the values to get;

[tex]S_ {12}= \frac{12}{2} (2+ 35)[/tex]

[tex]S_ {12}=6(37)[/tex]

[tex]S_ {12}= 222[/tex]

Write a rule to describe each transformation. (What is the reflection?ex. Reflect with reaparece to x-axis, reflect across y=2, etc.)

Answers

Answer:

Reflect across the line y = x (x, y) -> (y, x)

Step-by-step explanation:

The simplest way is just one step, a reflection across the line y=x.  when doing this the rule is (x, y) -> (y, x).

There are a number of ways to do it otherwise, such as a reflection across the x axis then the y axis, or the other way around, or a translaton then reflection.  Like I said though, the reflection across y=x is the fastest.  Let me know if you have any further questions.  

Point O is the center of this circle. What is m∠CAB?



A.

55°

B.

48°

C.

45°

D.

35°

Answers

Answer:

48

Step-by-step explanation:

Answer:

b)48

Step-by-step explanation:

The Pham family bought 6 bags of cookies . Each bag had 13 cookies . They have since eaten 29 of the cookies . How many cookies do they have left ?

Answers

If they had six bags of cookies and each bag has thirteen cookies, then in total they have a total of seventy-eight cookies. If they've eaten twenty-nine cookies, then they now have forty-nine cookies because 78-29=49.

The sum of three co secutive numbers is 72 what are the smallest of these numbers

Answers

Step-by-step explanation:

The question above is answered below.

Consecutive numbers are set of numbers that follow one another in ascending or descending order, e.g. 1, 2, 3, 4, 5....

The sum of three consecutive numbers = 72

Let the unknown consecutive numbers be represented by x+1, x+2 and x+3 such that:

[tex](x + 1) + (x + 2) + (x + 3) = 72[/tex]

Remove the brackets

[tex]x + 1 + x + 2 + x + 3 = 72[/tex]

Collect like terms and simplify

[tex] x + x + x + 1 + 2 + 3 = 72[/tex]

[tex]3x + 6 = 72[/tex]

Make 3x subject of formula by subtracting 6 from both sides

[tex]3x + 6 - 6 = 72 - 6[/tex]

[tex]3x = 66[/tex]

To obtain the value of x, divide through by the coefficient of x, which is 3. Hence;

[tex] \frac{3x}{3} = \frac{66}{3} [/tex]

[tex]x = 22[/tex]

Since x = 22,

[tex]x + 1 = 22 + 1 = 23[/tex]

[tex]x + 2 = 22 + 2 = 24[/tex]

[tex]x + 3 = 22 + 3 = 25[/tex]

The smallest of these numbers is 23.

Check,

23 + 24 + 25 = 72

If we divide 72 by 3, we get 24. This is the middle number, from the three consecutive numbers. The smaller one is 24-1=23. This is your answer.
The bigger one is 24+1=25

An athlete jumped 5.5 feet which was 1.1 times higher than the previous jumper. How high did the previous athlete jump?

Answers

Answer:

5ft

Step-by-step explanation:

1.1j=5.5ft

Divide both sides by 5.5

So: j=5ft.  This is the previous jump

Evaluate n/6 + 2 when n = 12

Answers

Answer:

[tex]\frac{(12)}{2} +2\\6+2=8\\8[/tex]

Hope this helped

Answer:

4

Step-by-step explanation:

 n/6 + 2 when n = 12

n/6 + 2

Replace n with 12

Therefore,

n/6 + 2 = 12/6 + 2

= 2+2

=4

I hope this was helpful, please rate as brainliest

Replace the ? in each of these statements with the symbol >, <, or =.
a. 39 ? 38
b. 16 ? 16
c. 11 ? 315
d. 5 ? 4

Answers

39>38

16=16

11<315

5>4

Hope this helps you mate

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a. 39 > 38
b. 16 = 16
c. 11 < 315
d. 5 > 4

10. The length of the hypotenuse of a 30°-60°-90° triangle is 16. What is the perimeter?
64+8 square root 3
24+8 square root 3
16+64 square root 3
8+24 square root 3

Answers

Answer:

24+8 square root 3

Step-by-step explanation:

The ratio is x : x radical 3 : 2x

hypotenuse= 2x= 16

x =8

x square root 3 = 8 square root 3

16+8=24

According to the survey described here, what was the sample of the survey? “A recent telephone survey of 900 teenagers aged 16 to 19 from across the state shows 1 out of 4 of them drive themselves to school.”

A. all teenagers aged 16 to 19 in the state
B. 900 teenagers aged 16 to 19 from across the state
C. 1 out of 4 teenagers aged 16 to 19 from across the state
D. teenagers aged 16 to 19 from across the state who own a telephone

Answers

Answer:

Step-by-step explanation:

B is correct.  This choice accurately describes the sample.

Write an equation in slope-intercept form for the line passing through the pair of points. (2, –6), (–4, 3) Question 17 options: y = x + 3 y = x – 3 y = x – 3 y = x + 3

Answers

Answer:

No answer choices are correct; y=-9/6x-3

Step-by-step explanation:

Slope=Rise/Run=(3-(-6))/(-4-2)=9/-6=-9/6

y=-9/6x+b

3=-9/6(-4)+b

3=36/6+b

3=6+b

-3=b

So the equation is y=-9/6x-3, so none of your answer choices are correct

What’s the area of this?

Answers

Answer:

25.5

Step-by-step explanation:

[tex]A_{t} = \frac{1}{2} * (6 + 3) * (5 + 2) = 31.5\\\\A_{r} = 2 * 3 = 6\\\\A = A_{t} - A_{r} = 31.5 - 6 = 25.5[/tex]

3) Find the value of x. A) 21 B) 27 C) 31 D) 34

Answers

Answer:

I will guess 21

Step-by-step explanation:

9+10=21 boi

Answer:

for Usatestprep it is 21

Step-by-step explanation:

i swear 100%

What is the volume of the triangular prism? Round to the nearest tenth.

Answers

Answer:

the volume of the triangular prism is 1,185.6  in³

Step-by-step explanation:

To find the volume of these triangular prism, we will, first, find the area of the triangle then multiply by the length

Area of triangle = [tex]\frac{1}{2}[/tex] × b×h

From the diagram ,the height of the triangle  is given to be 10.4 in and the base is given to be 12 in.

We will now proceed to insert the values into the formula;

                 Area of triangle  = [tex]\frac{1}{2}[/tex] × b×h

                                              = [tex]\frac{1}{2}[/tex] × 12×10.4

                                             

                                                = [tex]\frac{1}{2}[/tex] × 124.8

                                                 =62.4

Area of triangle is 62.4 in²

From the diagram is given to be 19 in

Volume of triangular prism = area of triangular prism × l

                                              =62.4 in²   ×    19 in

                                              =1,185.6  in³

Therefore the volume of the triangular prism is 1,185.6  in³

                                           

                           

what is y= -3/2x + 4 in standard form

Answers

Answer:

2y + 3x = 8

Step-by-step explanation:

Step 1:  Add 3/2x to both sides

y + 3/2x = -3/2x + 4 + 3/2x

y + 3/2x = 4

Step 2:  Multiply both sides by 2

(y + 3/2x)*2 = 4*2

2y + 3x = 8

Answer:  2y + 3x = 8

Kent is riding his bicycle. The graph shows the relationship between time in hours and the miles Kent rides.  Write an inequality to show the number of hours when Kent has ridden more than 30 miles. Explain your answer. 



Answers

The inequality to represent the number of hours when Kent has ridden more than 30 miles is y = 6x for x > 5, where x is the number of hours ridden and y is the distance in miles.

Step-by-step explanation:

Step 1:

First, we need to plot the coordinates of the line on the graph.

We plot the points that fall exactly on an x axis value and also on a y axis value.

There are three such points on the given graph; (5, 30), (10, 60) and (15, 90). These points fall exactly on the values of the x axis and the y axis.

Step 2:

Now, we establish a relationship between the values of x (the number of hours ridden) and y (distance in miles).

Here y is the dependent value and x is the independent value i.e. the value of y values according to the values of x.

In 5 hours, Kent rode 30 miles. In 10 hours, he rode 60 miles and in 15 hours he rode 90 miles.

Step 3;

So for every 5 hours, Kent rides another 30 miles.

So y = 6x for x>5 is the

When x = 10, y = 6 × 10 = 60 miles,

When x = 15, y = 6 × 15 = 90 miles.

Y^4+5x=21 second derivative

Answers

Answer:

[tex]\displaystyle y'' = \frac{-75}{16y^7}[/tex]

General Formulas and Concepts:

Calculus

Differentiation

DerivativesDerivative Notation

Derivative Property [Multiplied Constant]:                                                           [tex]\displaystyle \frac{d}{dx} [cf(x)] = c \cdot f'(x)[/tex]

Derivative Property [Addition/Subtraction]:                                                         [tex]\displaystyle \frac{d}{dx}[f(x) + g(x)] = \frac{d}{dx}[f(x)] + \frac{d}{dx}[g(x)][/tex]  

Basic Power Rule:

f(x) = cxⁿf’(x) = c·nxⁿ⁻¹

Derivative Rule [Chain Rule]:                                                                                 [tex]\displaystyle \frac{d}{dx}[f(g(x))] =f'(g(x)) \cdot g'(x)[/tex]

Implicit Differentiation

Step-by-step explanation:

Step 1: Define

Identify

[tex]\displaystyle y^4 + 5x = 21[/tex]

Step 2: Find 1st Derivative

Differentiate [Basic Power Rule, Chain Rule, Derivative Properties]:       [tex]\displaystyle 4y^3y' + 5 = 0[/tex]Isolate y' term:                                                                                               [tex]\displaystyle 4y^3y' = -5[/tex]Isolate y':                                                                                                       [tex]\displaystyle y' = \frac{-5}{4y^3}[/tex]

Step 3: Find 2nd Derivative

Rewrite:                                                                                                         [tex]\displaystyle y' = \frac{-5}{4}y^{-3}[/tex]Differentiation [Basic Power Rule, Chain Rule, Derivative Properties]:     [tex]\displaystyle y'' = \frac{15}{4}y^{-4}y'[/tex]Rewrite:                                                                                                         [tex]\displaystyle y'' = \frac{15}{4y^4}y'[/tex]Substitute in y':                                                                                             [tex]\displaystyle y'' = \frac{15}{4y^4} \bigg( \frac{-5}{4y^3} \bigg)[/tex]Simplify:                                                                                                         [tex]\displaystyle y'' = \frac{-75}{16y^7}[/tex]

Topic: AP Calculus AB/BC (Calculus I/I + II)

Unit: Differentiation

About 8% of the U.S. population catches the flu each season. Assuming everyone has equal probability of catching the flu, about what are the odds of catching the flu in a given season?


1 in 8


1 in 12


1 in 18


1 in 80

Answers

Answer:

The correct answer is B. 1 in 12.

Step-by-step explanation:

1. Let's review the information given to us to answer the question correctly:

Percentage of the U.S. population that catches the flu each season = 8%

8% = 8/100

2. Assuming everyone has equal probability of catching the flu, about what are the odds of catching the flu in a given season?

Let's review together each of the possible answers given:

A. 1 in 8  = 1/2 = 0.125 = 12.5%, this is not the percentage given.

B. 1 in 12  = 1/12 = 0.083 = 8.3%, if we round to 8%, this is the percentage given.

C. 1 in 18  = 1/18 = 0.056 = 5.6%, this is not the percentage given.

D. 1 in 80 = 1/80 = 0.0125 = 1.25%, this is not the percentage given.

The correct answer is B. 1 in 12.

Other Questions
Which of the following is not a social engineering attack: a. Dumpster diving b. Hacking c. Shoulder surfing d. Persuading a receptionist to give you information An engineer working in an electronics lab connects a parallel-plate capacitor to a battery, so that the potential difference between the plates is 240 V. Assume a plate separation of d 1.77 cm and a plate area of A-25.0 cm. when the battery is removed, the capacitor is plunged into a container of distilled water. Assume distilled water is an insulator with a dielectric constant of 80.0(a) Calculate the charge on the plates (in pC) before and after the capacitor is submerged. (Enter the magnitudes.) before pC after Q pC (b) Determine the capacitance (in F) and potential difference (in V) after immersion. (c) Determine the change in energy (in nJ) of the capacitor nJ (d) What If? Repeat parts (a) through (c) of the problem in the case that the capacitor is immersed in distilled water while still connected to the 240 V potential difference Calculate the charge on the plates (in pC) before and after the capacitor is submerged. (Enter the magnitudes.) before Q, - after Q Determine the capacitance (in F) and potential difference (in V) after immersion. pC pC Determine the change in energy (in nJ) of the capacitor. nJ During Eisenhower's presidency, what is happening in Asia and Africa? Three large plates are separated bythin layers of ethylene glycol and water. The top plate moves to the right at 2m/s. At what speed and in what direction must the bottom plate be moved to hold the center plate stationary? At what minimum speed must a roller coaster be traveling so that passen- gers upside down at the top of the circle (Fig. 548) do not fall out? Assume a radius of curvature of 8.6 m. 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Then, the price rises to S25, and the firm makes whatever adjustments are necessary to maximize its profit at the now-higher price. Once the firm has adjusted, its a. quantity of output is higher than it was previously. b. average total cost is higher than it was previously. c. marginal revenue is higher than it was previously. d. All of the above are correct. 5. 6. A profit-maximizing firm in a competitive market is currently producing 200 units of output. It has average revenue of $9 and average total cost of S7. It follows that the firm'se a. average total cost curve intersects the narginal cost curve at an output level of less than 200 units. b. average variable cost curve intersects tne maiguial cost curve at an output level of less : than 200 units.e c. profit is $400. d. All of the above are correct. Individuals who had been mistreated as children and did NOT have a particular form of the MAO-A gene were ______ likely to be violent and engage in a variety of antisocial behaviors as adults compared with individuals who had been mistreated as children and had the particular form of the MAO-A gene.