Factor using GCF then AC:
9x2 - 39x - 30

Answers

Answer 1

Answer:

3(x^2-13x-10)

Step-by-step explanation:

You can only factor out 3, as that is the only thing these have in common.


Related Questions

Find the missing x value for for question 14

Answers

Answer:

x=12 but who knows maybe

Step-by-step explanation:

if we are trying to say those lines are equal length than surely the equations must be equal value otherwise they aren't equal so we can probably set them equal to each other and solve for x right? 2x+6=3x-6 subtract 6. 2x=3x-12. subtract 3x. -1x=-12. divide by -1 so x=12.

(9x - 18)°
find the value of x

Answers

Answer:

x=2

Step-by-step explanation:

9x-18
If u substitute the answer you get is 2

no clue how to answer this

Answers

Answer:

s=4.75

Step-by-step explanation:

Just substitute the given variable values into the original equation

s=10•½+½•-2•½²

s=5+-1•¼

s=5+-¼

s=-4.75

What describes the slope of this line

Answers

Answer:

Undefined

Step-by-step explanation:

ANSWER :

1: undefined slope

A scientist measures the change in the temperature of a chemical solution. At the start of the experiment, the solution is at a temperature of -14.96ºC. The temperature decreases 2.9ºC each hour. 1️⃣ Find the temperature of the solution after 3 hours. 2️⃣ Find the temperature of the estimated solution after 3 hours.

Answers

Answer:

-6.26°C

Step-by-step explanation:

Given that:

Initial temperature = - 14.96ºC

Temperature change per hour = 2.9ºC

Hence, the temperature of the solution after 3 hours can be obtained thus :

Final temperature = (initial temperature + (temperature change per hour * Number of hours))

Temperature after 3 hours :

-14.96 + 2.9(3)

-14.96 + 8.7

= - 6.26

I NEED HELP!!!!

Physical therapists measure strength on a dynamometer, which uses a unit called a foot-pound. Suppose you increase the strength in your elbow joint from 90 foot-pounds to 125 foot-pounds. Find the percent of increase to the nearest percent.



A.

39%



B.

138.9%



C.

28%

Answers

Answer:

A. 39%

Step-by-step explanation:

(125-90)/(90)=(35)/(90)=0.3889 or 39%

To find the percent increase, we need to divide the amount of change by the original amount.

The ratio of girls to boys is 8 girls to 4 boys.
If there are 4 girls, how many boys are there?

Answers

Answer:

4

Step-by-step explanation:

i think 2 idrk .....

can someone please help me, ill give brainliest plus points!

Answers

Answer:

9 is the correct answer all the best

Step-by-step explanation:

(x + 0.5)/6 = 19/12

2(x + 0.5) = 19 (multiply 12 on both sides)

x + 0.5 = 9.5 (divide 2 on both sides)

x = 9 (subtract 0.5 on both sides)

The answer is 9.

Find the exact length of the third side.
60
25

Answers

Answer:

a2+b2=c2

32+42=52

9+16=25

25=25

Step-by-step explanation:

Answer:

2.4

Step-by-step explanation:

How do you solve equations using Substitution.

Answers

Substitution is one of the methods for solving linear equations. It is a good choice if there is a variable with a coefficient of 1. This method involves solving one of the equations for a variable and then substituting that expression into another equation to solve for another variable. This will produce a single equation with one variable, which can then be solved algebraically.

Determine the value of the variable from the image below.

Answers

Answer:

x=29

Step-by-step explanation:

to understand the solving stepsyou need to know about:right angleequationPEMDASto solve:xlet's solve:

a right angle contains 90° (always)

according to the question

x+3+x-1+x+1=90

3x3=90

x=87

x=29

solved

Hey there .. Plz help me solve this . ​

Answers

Answer:

I don't understand your question!!!

you invested $1,900 at a 4% interest compounded annually for 3 years.how much interest did you earn in 3 years

Answers

Answer:

The amount is $2137.24 and the interest is $237.24.

Step-by-step explanation:

STEP 1: To find amount we use formula:

A = P[tex](1+\frac{x}{y} )nt[/tex]

A = total amount P = principal or amount of money deposited, r = annual interest rate n

= number of times compounded per year t = time in years In this example we have

P = $1900 , r = 4% , n = 1 and t = 3 years

After plugging the given information we have

A = 1900 [tex](1+\frac{0.04}{1})^{1*3}[/tex]

A = 1900 · 1.0[tex]4^{3}[/tex]

A = 1900 · 1.124864

A = 2137.24

STEP 2: To find interest we use formula A = P + I, since A = $2137.24 and P = $1900 we

have:

A = P + I

2137.24 = 1900 + I

I = 2137.24 − 1900

I = 237.24

I need help please I’m going to give brainliest if u do help me thank you

Answers

Answer:

A orange is $0.39

Step-by-step explanation:

$1.56 divide that by 4

Plz help me I dont understand

Answers

Answer:  the answer is -7/5

Answer:

The answer is C

Step-by-step explanation:

Help me please ASAP!!!!

Answers

Answer:

i need this too

Step-by-step explanation:

Answer:

no thanks asap!!!

Step-by-step explanation:

The profit of a football club after a takeover is modeled by p(t)=t^3-14t^2+20t+120,where t is the number of years after the take over, in which years was the club making a loss ?

Answers

When looking at the following expression, we can tell that it has no rational roots. However, it does have zeros at:

t = -0.45, 2.16, 12.29.

When thinking of the cubic curves you know that p(t) < 0 for 2.16 < t < 12.29. Meaning the team took a loss in years 3-12.

Please consider me brainliest.

Can somebody plz help answer these word prob questions plz thanks! (Grade7math( btw :)

WILL MARK BRAINLIEST WHOEVER ANSWER FIRST :DDD

Answers

Answer:

3:1

8:5

Step-by-step explanation:

a pizza costs $11 and $1.50 per topping write a equation for cost in dollars and the nunber of toppings ​

Answers

Answer:

y= 11 + 1.50x. (y is the price, x is number of toppings)

Step-by-step explanation:

y= 11+1.50x because y is the total, x is your independent variable, and 11 is ur baseline

can someone pls help me by tonightttt

Answers

Increases by 60 cm^2

Area of each side times 2
6x2x2= 24
6x3x2= 36

Sums to 60


The diagram shows a trapezium.
Work out the area of the trapezium.

Answers

Answer:

32cm^2

Step-by-step explanation:

the formula for the area of a trapezois is S=(10+6)/2*4=32

??????????????????????????????????

Answers

Answer:

[tex]y = \frac{1}{2} x + \frac{1}{2} [/tex]

Step-by-step explanation:

equation of line formula:

[tex]y = mx + c[/tex]

m = slope

c = y-intercept

1) find m

slope formula:

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

take 2 coordinates from the given graph and substitute the values into the slope formula

i) (-1,0)

[tex]x _{1} = - 1[/tex]

[tex]y_{1} = 0[/tex]

ii) (3,2)

[tex]x_{2} = 3[/tex]

[tex]y_{2} = 2[/tex]

substitute the values into the slope formula

[tex]m = \frac{2 - 0}{3 - ( - 1)} [/tex]

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

[tex]m = \frac{1}{2} [/tex]

2) find the half equation of the line by substituting the value of m into the equation of line formula

[tex]y = \frac{1}{2} x + c[/tex]

3) find c by substituting either coordinate into the half equation

(3,2)

x = 3

y = 2

[tex]2 = \frac{1}{2} (3) + c[/tex]

[tex]2 = \frac{3}{2} + c[/tex]

[tex]2 - \frac{3}{2} = c[/tex]

[tex] \frac{1}{2} = c [/tex]

[tex]c = \frac{1}{2} [/tex]

4) find equation of line by substituting the value of c into the half equation

[tex]y = \frac{1}{2} x + \frac{1}{2} [/tex]

Two snakes race the speed of the first is 24 1/2 inches per minute and the speed of the other is 26 inches per minute how far apart with they be in 3 min? 10 min?

Answers

Answer:

637, 245

Step-by-step explanation:

Speed is the rate of change in the position of an object. The distance between the two snakes after 10 mins is 15 inches.

What is the relation between speed, distance, and Time?

We know that sped, distance, and time all are in a relationship to each other. this relationship can be given as,

[tex]\rm{Speed = \dfrac{Distance}{Time}[/tex]

Given to us

Two snakes race The speed of the first is 24 1/2 inches per minute The speed of the other is 26 inches per minute

What is the distance between them after 3 mins?

The relative speed between them, as they are moving in the same direction, therefore,

Relative speed = (26-24.5) = 1.5 inches per minute

[tex]\text{Distance between them after 3 mins}= \rm speed \times \rm time[/tex]

                                                        [tex]= 1.5 \times 3\ mins\\= 4.5\ inches[/tex]

Thus, the distance between the two snakes after 3 mins is 4.5 inches.

What is the distance between them after 10 mins?

The relative speed between them, as they are moving in the same direction, therefore,

Relative speed = (26-24.5) = 1.5 inches per minute

[tex]\text{Distance between them after 10 mins}= \rm speed \times \rm time[/tex]

                                                          [tex]= 1.5 \times 10\ mins\\= 15\ inches[/tex]

Thus, the distance between the two snakes after 10 mins is 15 inches.

Learn more about Speed, distance, and Time:

https://brainly.com/question/15100898

Personal Statement
Please include a personal statement about why you are applying and what you feel you can contribute to the program. Your statement should be a minimum of 500 words and include the following information: Why would you like to attend this Oxbridge program? Please tell us about your academic and extracurricular interests. Be sure to include your current, unweighted grade point average (GPA) or your school's equivalent. What interests you about the Major and/or Minor/Workshop courses you intend to pursue? What do you feel you will contribute to the program? Feel free to share any additional details that you feel may help our Admissions Team understand why you are a good fit for this program.

so can someone help me cause I'm not sure how to write this on a way that is convincing​

Answers

Well, as it says, your first statement needs to explain what interests you about the program.

If you feel you need multiple paragraphs, let the first be an introduction, around 4 or 5 sentences. Include, possibly what pushed you to apply for this program, what you're looking forward to, and a reason for them to hire you. You can add a thesis statement of sorts if that helps (a short statement, usually one sentence, that summarizes the main point or claim of a paper). The first paragraph can be short, it doesn't need to be too in-depth. You can talk more about that later in your statement.

The body paragraphs must include your goals and extracurricular interests (what courses would you like to take and why?).

As it states, you must list your GPA, what interests you about the Major and/or Minor/Workshop courses, and what you can contribute (you can build off of what you said in your first paragraph here).

It is very important to share additional details you think are important, such as accomplishments you are proud of, for example.

A conclusion would be nice, a short and sweet wrap-up of your overall statement (not too long).

Remember, the name of the game is to sound confident and prove to them that you are in fact a good fit for the program! Good luck! Stay focused ^^

A giant tortoise travels at 0.17 miles per hour and an arctic hare travels at 37 miles per hour. If
The tortoise and the hare start out together and after half an hour the hare stops to take a rest. How long does it take the tortoise to catch up

Answers

Answer:

3.145 Hours

Step-by-step explanation:

37÷2=18.5

18.5×.17=3.145

It will take the tortoise to catch up with the hare 109 hours.

Given that,
A giant tortoise travels at 0.17 miles per hour and an arctic hare travels at 37 miles per hour. If The tortoise and the hare start out together and after half an hour the hare stops to take a rest. How long it takes the tortoise to catch up is to be determined.

What is speed?

Speed is defined as when an object is in motion, the distance covered by that object per unit of time is called speed.

Here,
Distance traveled by hare in half hour,
= speed * time
= 37 * 1/2
= 18.5 miles

Time is taken by the tortoise to catch up with the hare,
= distance / speed
= 18.5 / 0.17
≈ 109 hours

Thus, it will take the tortoise to catch up with the hare 109 hours.

Learn more about speed here:
https://brainly.com/question/7359669

#SPJ2


Solve: 7.45 - 22.1 - 6.8

Answers

-21.45 is the answer to this question.
Solve: 7.45-22.1-6.8
answer= -21.45

What is the complete factorization of x^2 + 2x − 63?

A. (x + 21)(x − 3)
B. (x − 9)(x + 7)
C. (x + 9)(x − 7)
D. (x − 21)(x + 3)

Answers

Answer:

C. (x+9)(x-7)

Step-by-step explanation:

(x*x)=x^2

(9*x)=9x

(-7*x)= -7x

(9*-7)= -63

x^2+9x-7x-63 = x^2+2x-63

35 is 28% of what number? Please explain how you got it.

Answers

Answer:

125

Step-by-step explanation:

we have

x*.28= 35

we divide both sides by .28 and get

x= 125

and 28% of 125 = 35

Hope it helps !

Hey there!

[tex]\text{35 is 28\% of what \# ?}[/tex]

[tex]\bold{Equation: y = \% \times \ \# }[/tex]

[tex]\bold{We\ should\ now\ start\ looking\ for\ your\ unknown\ number}[/tex]

[tex]\bold{\# =\dfrac{y}{\%}}[/tex]

[tex]\bold{y=35}[/tex]

[tex]\%=28[/tex]

[tex]\bold{\#=\dfrac{35}{28\%}}[/tex]

[tex]\text{Convert 28\% to decimal}[/tex]

[tex]\bold{28\% =\dfrac{28\%}{100}=0.28}[/tex]

[tex]\bold{New\ equation: \dfrac{35}{0.28}}[/tex]

[tex]\bold{Simplify\ the\ one\ above\ and\ you\ have\ your\ mystery\ number}\uparrow[/tex]

[tex]\boxed{\boxed{\bold{Answer: 125}}}\checkmark[/tex]

Good luck on your assignment and enjoy your day!

~[tex]\frak{Amphitirite1040}[/tex]

Solve the system by any method.
(3x – 4y = -5
(5x + 8y = -1

Answers

Answer:

( x , y ) = ( -1,1/2)

Step-by-step explanation:

Solve the equation for X

[tex]\left \{ {{x=-5/3+4/3y} \atop {5x+8y=-1}} \right.[/tex]

Substitute the given value of x into the equation 5x + 8y = -1

5(-5/3+4/3y)+8y=-1

Solve the equation for Y

y=-1/2

Substitute the given value of y into the equation x = -5 / 3 + 4 / 3y

x=-5/3+4/3×1/2

Solve the equation for X

x=-1

The system solution is the computer pair

(x,y)=(-1,1/2)

Check if the ordered pair given to the solution of the system of equations

[tex]\left \{ {{3*(-1)-4*1/2=-5} \atop {5*(-1)+8*1/2=-1}} \right.[/tex]

Simplify the equations

[tex]\left \{ {{-5=-5} \atop {-1=-1}} \right.[/tex]

The ordered pair is the solution of the system of equations, since both equations are true

(x,y)=(-1,1/2)

Meredith needs $399 to buy a tablet computer. She wants
to earn enough money babysitting to cover at least two-
thirds of the cost.
If she earns $8 an hour babysitting, write an inequality that
can be used to solve for b, the number of hours she must babysit.

Answers

Answer:

233 and 20 hrs

Step-by-step explanation:

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