Solve: -3k(1-6k)=6k+21

Answers

Answer 1

Answer: Move all terms to the left side and set equal to zero. Then set each factor equal to zero.

Exact Form:

k

=

3

+

177

12

,

3

177

12

Decimal Form:

k

=

1.35867789

,

0.85867789

Step-by-step explanation


Related Questions

(1) One apple weighs 75 grams and one orange weighs 40 grams. The weight of x apples and y oranges, is​

Answers

Answer:

Given,

Weight of each apple =75 gm

Weight of each orange =40 gm

So,

Weight of x apples =75x gm

Weight of y oranges =40y gm

Thus,

Weight of x apples and y oranges =(75x+40y) gm

I hope it's helpful!

5 circles lie on the same plane.What is the maximum number of intersection points the circles can have?

Answers

the answer is 10 pts bc the maximum number of points of intersection when 5 lines are drawn in a plane, as shown, is 10 points.

Answer:20

Step-by-step explanation: The rule you use for the problems is the same you use for finding the sum of patterned numbers: n*(n+1). n is equivalent to the number of circles. Thus, 5 *(5-1)= 5*4=20

Hope it helps!

How many solutions does this equation have?
-7p - 16 = -17p + 8 + 12p
•no solution
•one solution
•infinitely many solutions

Answers

Answer:

One solution

Step-by-step explanation:

-7p - 16 = -17p + 8 + 12p

-7p-16=-5p+8

-7p+5p=8+16

-2p=24

p=-12

Find the median:51,53,49,51,53,50,54,56​

Answers

Answer:

52

Step-by-step explanation:

Answer:

52

Step-by-step explanation:

49, 50, 51, 51, 53, 53, 54, 56

the middle are (51,53) and when u have 2 numbers in the middle u add them up and divide by two which gives us 52:)

Solve 2(x - 5) = 6(x - 1)

Answers

Answer:

60

Step-by-step explanation:

so first you multiply 2 times 5 =15 and the we do 15 times six which is 90 and then subtract one and keep subtracting util you get to 60

Answer:

x=-1

Step-by-step explanation:

2(x-5)=6(x-1)

2x-10=6x-6

-4x-10=-6

-4x=4

x=-1

What is the equation of a line that has a slope of -5 and passes through the point (0, 2)?
y = -5x
y = 2x - 5
y = -5x + 2

Answers

Answer:

y= -5x+2 is the equation.

Answer:

y= -5x + 2

Step-by-step explanation:

y = mx + b(we will put the points of "x" and "y" into this formula)

2= -5 (0) +b( as "x" is "0" and is multiplied by "-5" it will become "0" giving us the value of "b")

2=b(finally we will substitute this answer in the formula we've written)

therefore the answer will be:

y= -5x + 2

A steel bridge is 1000m lang at 20 degrees celsius. The bridge will expand or contract by .10m when the temperature changes by 1 degree celsius. How long would the bridge be at 24 degrees celsius? *

Answers

Answer:

1000.4m

Step-by-step explanation:

Objects usually expand when the temperature is warmer

Each degree celsius higher, the bridge expands by .10m

If the temperature goes from 20 to 24, it increases by 4 degrees which will be 0.4m

1000m+0.4m=1000.4m

Select all of the expressions equivalent to 2(x + 9y) + 3(2x - 6y).

Answers

Answer:

8x

Step-by-step explanation:

=2(x+9y)+3(2x-6y)

=2x+18y+6x-18y

=2x+6x-0y

=8x

Ginger the cat weighed 25lbs! The vet put Ginger on a diet and by the end of the month, Ginger weighed 20lbs. What percentage of her weight did Ginger loose? She lost of her weight.​

Answers

Answer:

20%

Step-by-step explanation:

25 divided by 5 is 5 and in fractions 1/5 is 20 therefore 20% for every 5 pounds so if you lose 5 pounds you lost 20% of her weight.

Answer:

ana totta

Step-by-step explanation:

the scale of a model is 0.5in : 6 ft. find the length of the model for an actual length of 204 ft

Answers

Answer:

17 in

Step-by-step explanation:

.5 in : 6 ft

204/6 x .5 = 17

Your family is on the way to Disneyland! On the freeway you have driven for 120 minutes at a constant speed of 65 miles per hour before you stop for lunch. After lunch you get back on the freeway with a bit of traffic and drive at a constant speed of 40 miles per hour for 30 minutes before stopping for gas. How far did you drive in all? Use a ratio method.

Answers

Answer:

150 miles

Step-by-step explanation:



You buy a car in 2017 for $25,000. The value decreases by 16% each year. How much will the car be worth

in 2022? Round your answer to the nearest penny, 2 decimal places.

Answers

Answer:

The appropriate answer is "10,455.29856".

Step-by-step explanation:

According to the question,

The time will be:

⇒  t = [tex]2022-2017[/tex]

⇒    = [tex]5[/tex]

On applying formula, we get

⇒ [tex]f(t)=25000(1-.16)^t[/tex]

On substituting the value of "t", we get

⇒ [tex]f(5)=25000(1-.16)^5[/tex]

⇒         [tex]=25000(0.84)^5[/tex]

On solving the power, we get

⇒         [tex]=25000\times 0.4182119424[/tex]

⇒         [tex]=10,455.29856[/tex]

The ratio of containers of orange juice to containers of grape juice in a store is 5 orange juices to 4 grape juices. If there are 405 containers in the store, how many are grape juice?

Answers

Answer: There are 180 grape juice in the store

Step-by-step explanation:

The ratio of containers of orange juice to containers of grape juice in a store is 5 orange juices to 4 grape juice which can be expressed as 5:4

Total number of containers = 405

total ratio = 4+5 =9

The number of containers that are orange juice  = 5/9 x 405

=5 x 45=225

The number of containers that are grape juice will now be = 4/9 x 405

=4 x 45= 180.

Two angles of an isosceles triangle are X and (X+10) .find two possible values of X.

Answers

Answer:

Step-by-step exp

X+x+(x+10)=180

3x+10=180

3x=180-170

x=56.666666degrees.

Case 2

x+(x+10)+(x+10)=180

3x+20=180

3x=160

X=53.333333

i hope the answer is help ful

When two angles of an isosceles triangle are given in the form of x, then the value of a single angle can have two possible outcomes those are:

X can be [tex]56.66^\circ[/tex]X can be [tex]53.33^\circ[/tex]

Given,

Two angles: X and [tex]\rm{X}+10[/tex]

As we know in an Isosceles triangle, the sum of all the angles is equal to[tex]180^\circ[/tex] and any of the two angles can be equal.

There can be two possible outcomes:

Case 1. When the two equal angles are X

[tex]\begin{aligned}\text{X}+\text{X}+(\text{X+10})&=180\\3\text{X}+10&=180\\3\text{X}&=180-10\\\text{X}&=\dfrac{170}{3}\\\text{X}&=56.66^\circ\end{aligned}[/tex]

Case 2: When the two equal angles are [tex]\rm{X}+10[/tex]

[tex]\begin{aligned}\text{X}+(\text{X}+10)+(\text{X}+10)&=180\\3\text{X}+20&=180\\3\text{X}&=180-20\\\text{X}&=\dfrac{160}{3}\\\text{X}&=53.33^\circ\end{aligned}[/tex]

Therefore, the two possible values of X can be [tex]56.66^\circ[/tex] and [tex]53.33^\circ[/tex]

To know more about the angles of the isosceles triangle, refer to the link:

https://brainly.com/question/12105959

O
What is the slope of the line passing through the points (4,-2) and (-5, 4)?

-3/2
-2/3
3/2
2/3

Answers

Answer:

B.) -⅔

Step-by-step explanation:

Subtract each variable

y¹-y

x¹-x

-2-4 = -6

4-(-5) = 9 -6/9 = -⅔

A sandwich store charges $20 to have 3 turkey subs delivered and $26 to have 4 delivered. How much does the store charge for the one additional turkey sub?

Answers

Answer:

Seven dollars

Step-by-step explanation:

what is six and eight seven thousandths as a decimal

Answers

Answer:

6.087

Step-by-step explanation:

0.000

^ones

   ^tenths

      ^hundredths

         ^thousandths

> Find the area of a circle with diameter 12 yd. Use the value 3.14 and do not round your answer. Be sure to include the correct unit in your answer. 12 yd​

Answers

[tex]area = \pi {r}^{2} [/tex]

[tex]area = (3.14) {(6)}^{2} [/tex]

[tex]area = (3.14)(36)[/tex]

[tex]area = 113.04 \: yd[/tex]

True or False: Tamika is having 5 friends over for a birthday party. Each serving of ice cream is of a cup. She would like to double that amount for each serving and have enough ice cream for her and her friends. 4 cups is enough

Answers

Answer:

TRUE

Step-by-step explanation:

Answer:

False

Step-by-step explanation:

False

If you have her and 5 friends that is 6 people.

And her doubled serving is 2 cups.

Enough ice cream would be 12 cups

(6 x 2 = 12)

She only has 4 which is not enough ice cream for everyone given these servings.

I hope this helps.

If you have any questions or concerns please comment or message me. :)

use the distributive property to rewrite the algebraic expression below

4 (x + 2)

Answers

The answer is 4x + 8

the point P = (x, -5/7) lies on the unit curcle shown below. What is the value of x in the simplest form?

Answers

Answer:

[tex]x =\± \frac{2\sqrt{6}}{7}[/tex]

Step-by-step explanation:

The question has missing details as the unit circle is not shown, However, I'll solve on a general terms.

Given

[tex]P = (x,-\frac{5}{7})[/tex]

Required

Determine the possible value of x

Since point p lies on the unit circle, we'll solve this question using the following unit circle formula:

[tex]x^2 + y^2 = 1[/tex]

Substitute -5/7 for y

[tex]x^2 + (-\frac{5}{7})^2 = 1[/tex]

[tex]x^2 + \frac{25}{49} = 1[/tex]

Collect Like Terms

[tex]x^2 =1- \frac{25}{49}[/tex]

Take LCM

[tex]x^2 =\frac{49 -25}{49}[/tex]

[tex]x^2 =\frac{24}{49}[/tex]

Take the square root of both sides

[tex]x =\± \sqrt{\frac{24}{49}}[/tex]

[tex]x = \±\frac{\sqrt{24}}{7}[/tex]

[tex]x = \±\frac{\sqrt{4*6}}{7}[/tex]

Split

[tex]x = \±\frac{\sqrt{4}*\sqrt{6}}{7}[/tex]

[tex]x =\± \frac{2*\sqrt{6}}{7}[/tex]

[tex]x =\± \frac{2\sqrt{6}}{7}[/tex]

While working at a soup kitchen, Roxanne made a pot of vegetable soup to serve 25 people. She made 10 quarts of soup, and gave each person an equal portion.
How much soup did each person get?
Write your answer as a proper fraction or mixed number.

Answers

Answer:

2.5 quarts or 5/2

Step-by-step explanation:

Answer:

2/5 quarts or 0.4 quarts

Step-by-step explanation:

there are 25 persons

she made 10 quarts soup

10 quarts / 25 persons = 2/5 quarts = 0.4 quarts

write a linear equation of a line that goes through (8,0) and (-6,7)

Answers

Answer:

Line equation: y=−0.5x+4

Slope: -0.5

Intercept: 4

Step-by-step explanation:

If ADEF = AJKL, DE = 18, EF = 23, DF = 9x - 23, JL = 7x-11, and JK = 3y - 21, find the
values of x and y.

Answers

Answer:

x = 6

y = 13

Step-by-step explanation:

since DE and JK are congruent, they are both 18

to find 'y':

3y - 21 = 18

3y = 39

y = 13

DF and JL are diagonals that are congruent so:

9x - 23 = 7x - 11

2x = 12

x = 6

X=6 Y=13 values of x and y

10v2 + 50
o Linear binomial
o Constant binomial
Quadratic binomial
Quadratic trinomial

Answers

Answer:

what is the question? probably describe the polynomial. okay. the polynomial 10v^2 + 50 is a quadratic (it is to the 2nd power) and a binomial (has 2 terms).

Which is the simplified version of:
7x + 12 + 3x = -6 (x - 7) + 9x

A. 5x = -30

B. 7x = -54

C. 7x = 30

D. 7x = -19

PLEASE DON’T GUESS :(
Will mark brainliest if your rightƪ(˘⌣˘)ʃ

Answers

Answer:

The answer is letter D

Step-by-step explanation:

Answer:

7x+3x=10x

-6(x-7)= -6x+42

then 10x+12=-6x+42+9x

10x+12=3x+42

10-3=42_12

7x=30

then the correct answer is C

What do you notice about the equation y=12?

Answers

Answer:

X=0

Step-by-step explanation:

If you look at the graph and follow, the x axis to match up with y=12, then you will see that x is 0

Answer:

M=0

Step-by-step explanation:

I got it right on I-Ready and because there is no change in y

a water cooler shaped like a rectangular prism has length of 80 centimeters a width of 40 centimeters and height of 100 centimeters what volume of water is needed to fill the water cooler

Answers

[tex]volume = lwh[/tex]

[tex]volume = (80)(40)(100)[/tex]

[tex]volume = 320000 \: {cm}^{3} [/tex]

You need a volume of 320000 cm³ of water to fill the water cooler.

A function is represented by the graph. The y intercept of the function y=-2x+8 is what to the y intercept of the function represented in the graph

Answers

Answer:

8

Step-by-step explanation:

HELP HELP I NEED HELP ASAP

George weighs 60 pounds less than his older brother. Together they weigh 240 pounds. How many pounds does George's older brother weigh?

Answers

i am pretty sure the answer is 180
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20 PTS !!!!!!HELP PLEASE Two different age groups were surveyed about the amount of time they spent on social media. Which of the following is not a characteristic of both experiments andsurveys?A. The researcher exercises direct control over at least one variable.B. Subjects should be randomly selected.C. Data are collected about a population.D. The data collected might be studied for patterns. 4 Mr. Serat is choosing tiles for a client's kitchen. Identifythree pairs of similar triangles. Explain.AABC where m2A = 24 and mZB = 96BADEF where mZD = 24 and mZE = 64AGHI where m2 = 24 and m/1 = 92DAJKL where m2 = 24 and mZL = 99EAMNO where m/M = 24 and mzo = 60FAPQR where mZP = 24 and m20 = 57 solve the problem: -10 + +10 = please help me marking brainlist please explain how u got the answer can u guys please help! tysmmmmmm Which verse is part of the first stanza of "The Star-Spangled Banner?"And the star-spangled banner in triumph doth waveO say does that star-spangled banner yet wave,Tis the star-spangled banner, O! long may it waveAnd the star-spangled banner in triumph shall wave Acotacin del lobo de la capeucita roja WILL GIVE BRAINLIEST!!A magnetic globe is being held down on a base. When released, the globe rises above the base and eventually comes to rest floating above the base. In which position shown does the globe have the greatest magnetic potential energy? what is another word to discrible tennis,match,chess which function displays the fastest growth as the x-values continue to increase? true or false - the crusades were the holy wars from control of jerusalem operacin 1: (6+(4*12)/12-2)+5 six times the quantity two x plus three y The height of a doorway is 7 yards. What is the height of the doorway in inches?The height of the doorway is ____ inches. Find the slop of the line given y - 1 = -5(x + 19) why it is good to save money Write an analysis of how the poet uses pivotal words and phrases to describe the qualities of a heart and what a heart may represent. what is good governance?give me short answer plz