Solve for x by factoring:
r2 – 10r + 21 = 0
I need help!
Pls!

Answers

Answer 1
I got 21/8 or 2.625 but I’m not very sure.

Related Questions

anyoneknowsthishelppls

Answers

Answer:

c

Step-by-step explanation:

It is likely that the car will have a navigation system. What could be the probability that it will have a navigation system?

(A) 1
(B) 0
(C) 1/8
(D) 2/3

Answers

Answer:

not sure but could be D

Step-by-step explanation:

since most cars nowdays do have them the probability of it having navigation could be 66.6% which is 2/3 x 100

The ratio of the number of girls in the class to number of boys
in the class is 3:4. How many girls in this class if there are
total 28 students in it?

Answers

Answer:

12 girls

Step-by-step explanation:

If the ratio of the number of girls in the class to number of boys

in the class is 3:4 then

Total ratio = 3+4 =7

Ratio of girls that are in class = 3

Number of girls in class = 3/7 * 28

Number of girls in class = 3 * 4

Number of girls in class is 12 girls

Which ones are proportions and which aren’t? (no links please)

Answers

Answer:

the first one is proportion

Step-by-step explanation:

and second one is non proportion hope help you

Solve for x.
8x + 13
12x +7>>

Answers

Answer:

Solution given:

8x+13+12x+7=180°[exterior angle's sum is supplementary]

20x=180°-20

x=160°/20°

x=8° is your answer.

Which of the following is the graph of f(x) = -0.5|x + 31 -2?

Answers

Answer:

7

Step-by-step explanation:

hope t helps

When Jaylen started high school, 1,430 students attended his school. On the day of his graduation, only 1,001 students attended his school.

Answers

It looks like 429 students dropped out, stopped attending school, or did not complete the requirements to graduate.

Help me please quick

Answers

Answer:

[tex]slope = \frac{rise}{run} [/tex]

The slope is 3

Yep thts your answer

If carpet costs $3.25 per square yard, how much would it cost to carpet a rectangular room that is 8 yards wide and 12 yards long?

Answers

Answer:  $312.00

Step-by-step explanation:

By multiplying the area of the floor wanted to be carpeted by the price rate, you can conclude that this room would cost $312 dollars to be carpeted.  

I think I’m right but I don’t know yet

Answers

Answer:

You are incorrect; the correct answer would be 306.324 first then 306.359 second then 316.011 last

Step-by-step explanation:

Find the difference. Write the answer in simplest terms. 2/3- 3/9

Answers

Answer:

1/3

Step-by-step explanation:

2/3=6/9

6/9-3/9=3/9

3/9=1/3

Answer:

1/3

Step-by-step explanation:

2/3 -3/9= 6/9 -3/9=3/9

=1/3


If BAC = 320°, what is the measure of BC?
a. 40°
b. 80°
C. 160°
d. 320°

it also asks for the measure of angle BMC using the same photo!

Answers

Answer:

BC = 40º

BMC = 40º

Step-by-step explanation: Since the measure the major and minor arcs add up to 360º, just subtract 320 from 360 to find BC which is 40º. <BMC is also 40º because the measure of the arc is equal to its corresponding angle.

4/9 ÷ 8/15
:-):-):-)​

Answers

0.83333333333

:) have a good day

Answer:

4/9 x 15/8 = 5/6

Step-by-step explanation:

Make 8/15 a reciprocal (basically just means to turn the fraction upside down).

Then turn the division sign into a multiplication sign and multiply across, and there you have it!

it is 8:00 p.m. in canberra australia what time it is in philippines?​

Answers

Answer:

6:00 P.M.

Step-by-step explanation:

An airplane over the Pacific Ocean sights an atoll at an 7° angle of depression. If the
plane is 704 m above the water, how many kilometers is it from a point 704 m
directly above the atoll?
1) 807.85 km
2) 5733.62 km
3) 5.73 km
4) 86.44 km

Answers

I believe the answer is 5.73

What is the equivalent radian measure of 600?​

Answers

Answer:

[tex] = \frac{ \theta}{180} \times \pi \\ = \frac{600}{180} \times \pi \\ = \frac{10}{3} \pi[/tex]


The electrical current, in amperes, in a circuit varies directly as the voltage. When 15 volts are applied,
the current is 5 amperes. What is the current when 57 volts are applied?

Answers

Answer

The electrical current, in amperes, in a circuit varies directly as the voltage when 15 volts are applied, the current is 5 amperes-by-step explanation:

On Marlene's trip to Starved Rock, her average rate of speed for the entire five-hour trip was 62 miles per hour. For the first two hours of her trip, she kept her average speed at 50 miles per hour. Then she realized she was going to be late to meet her friend for dinner, so she started driving faster. What was her average speed for the last three hours of the trip?

Answers

Answer:

70 miles per hour

Step-by-step explanation:

Distance = speed * time

speed = distance / time

------------------------------

Total Distance

speed = 62

time = 5

62 * 5 = 310 miles

Distance travelled in first 2 hours

speed = 50

time = 2

50 * 2 = 100 miles

Remaining distance

310 - 100 = 210 miles

Speed to cover 210 miles in 3 hours

distance = 210

time = 3

210/3 = 70 miles per hour

Please help me find the graph that goes with the equation

Answers

Option 1 is the answer I’m pretty sure .

Answer:

it is one

Step-by-step explanation:

HELP IM STRUGGLING I DONT WANNA FAIL THIS SCHOOL YEAR

Answers

Answer:

507 cubic m

Step-by-step explanation:

V = l · w · h

V = 13 × 13 × 3

V = 507

The diameter of a circle is 19 inches. If the diameter is extended 5 inches beyond the circle to point C, how long is the tangent segment from point C to the circle?

Answers

The tangent segment from point C is 5 inches from the circle

What is the area of the figure in the picture plsssss i neeed it rn tysmm

Answers

Answer:

141

Step-by-step explanation:

HELP jimthompson5910

Answers

Answer:

2 pounds= $3.00

5 pounds= $7.50

8 pounds= $12.00

Please please give the answer fast

Answers

Answer:

169

Step-by-step explanation:

27 + 22 + 98 + 22 = 169

Find the area of the polygon. help pleasee ​

Answers

165 because when u do 11x15 u get 165 which is length times width and that’s how u get the area. The area is 165

Answer:

Jdhbdzbzvdksksskdjdjhdjdjdjjdjdjjfnfndjffjdjxbbx jasjsjs hahahas

Step-by-step explanation:

Compare the functions shown below: g(x) f(x) = 4x − 1 tangent function with y intercept at 0, 2 h(x) = cos(x + 2π) Using complete sentences, explain which function has the greatest y-intercept.

Answers

Answer:

g(x) has the greatest y-intercept (the graph)

Step-by-step explanation:

The y-intercept for f(x) is -1, we can easily identify it at the end of the function.

The y-intercept for g(x) is 2, we can see that's where it crosses the y-axis.

The y-intercept for h(x) is 1, we can find this by substituting 0 for x in the equation.

h(0) = cos(0+2[tex]\pi[/tex])

h(0) = cos(2[tex]\pi[/tex])

h(0) = cos(360)

h(0) = 1

[tex]\pi[/tex] = 180 when converting degrees to radians, and you can find the cosine of 360 with a calculator.

The function with the greatest y-intercept is g(x).

How to know which function has the greatest y-intercept?

Here we have the two functions:

f(x) = 4x - 1h(x) = cos(x + 2π).g(x) = tangent function with y-intercept at (0,  2)

The y-intercept is the value of the function when we evaluate in x = 0, so the y-intercepts of the given functions are:

f(0) = 4*0 - 1 = -1

h(0) = cos( 0+ 2π) = 1

And for g(x), we know that the y-intercept is at y = 2.

Then we can see that the function g(x) has the greatest y-intercept.

If you want to learn more about y-intercepts, you can read:

https://brainly.com/question/1884491

pls help (links are gonna get reported)

Answers

Answer:I believe its 0.

Step-by-step explanation: If you have a 3 and a -3 the answer would be 0, because the -3 would overpower the 3 and 3-3=0 so thats the only reasonable answer. Thanks~

Answer:

B

Step-by-step explanation:

student B has scored - 3

student D has scored 3

combined score = - 3 + 3 = 0 → B

3x + 3 = 30 whats the answer?

Answers

Answer:

x = 9

Step-by-step explanation:

3x + 3 = 30

3x = 30 - 3

3x = 27

    = 27 /  3

    = 9

Mark brainliest pls

Data show that men who are married, and also divorced or widowed men, earn quite a bit more than men the same age who have never been married. This does not mean that a man can raise his income by getting married because men who have never been married are different from married men in many ways other than marital status. Suggest one possible lurking variable that might help explain the association between marital status and income.
Choose the most plausible suggestion from the choices.
A. Men who are married, widowed, or divorced are usually more committed both in their personal and professional lives, enabling them to succeed in their careers.
B. Married, widowed, or divorced men have high income jobs. A high income job tends to make an individual more dedicated. This dedication leads a man to get married.
C. High income leads to greater commitment, which leads to marriage. Thus, we see that high income should actually be associated with men who have never been married.
D. Married, widowed, or divorced men tend to be more committed as well as men with high income jobs. From this, we may safely conclude that getting married leads to a high income job.

Answers

Answer:

B. Married, widowed, or divorced men have high income jobs. A high income job tends to make an individual more dedicated. This dedication leads a man to get married.

Step-by-step explanation:

A lurking variable is one that is not measured in the given study but it will affect the relationship between the explanatory and response variables.

Now, in this case, we see that divorced or widowed men, are said to earn quite a little more than men that are of the same age who have never been married.

Now, we are told it does not imply that a man can raise his income by getting married.

This means that majority who have high income tend to consider getting married.

Thus, we can infer that having a high income job leads to a man being more dedicated and this leads him to getting married.

2/4 list the next four multiples of the fraction.

Answers

Answer:

[tex]\frac{2}{4} = \frac{4}{4}, \frac{6}{4}, \frac{8}{4}, \frac{10}{4}[/tex]

Step-by-step explanation:

Given

[tex]n = \frac{2}{4}[/tex]

Required

The next 4 multiples

To do this, we simply get the multiples of the numerator (2)

[tex]2 = 4,6,8,10[/tex]

So, the next 4 multiples are:

[tex]\frac{2}{4} = \frac{4}{4}, \frac{6}{4}, \frac{8}{4}, \frac{10}{4}[/tex]

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