Mathematics High School

Please explain how to do it
2r +9r + 10 = 0

Answers

Answer 1

Answer:

[tex]r= -\frac{10}{11}[/tex]

Step-by-step explanation:

[tex]2r+9r+10=0\\[/tex]

combine 2r and 9r

[tex]11r+10=0[/tex]

subtract 10 on both sides

[tex]11r=-10[/tex]

[tex]r= -\frac{10}{11}[/tex]

Related Questions

Determine the constant of proportionality in the situation below.
Seven water bottles cost $14.28

Answers

The answer would be $99.40

Do division 14.28 divided by 7 = 2.04 :DStep-by-step explanation:

What ratio will have a trail with 7:2

Answers

Answer:

7/2

Step-by-step explanation:

Its 7/2. Okokoookokoko Ok

If the transformation was a rotation, tiffany can or cannot be certain the trapezoids are congruent?

Answers

Answer: Tiffany can be certain the trapezoids are congruent.

Step-by-step explanation: Two figures are congruent when their corresponding angles are equal and they have the same shape and size.

A figure can go thorugh 3 types of transformations:

Rotation: the figure is turned around a fixed point;Reflection: is created by fliping over the figure over a line;Translation: move the figure to another location, without changing its size;

As long the figure doesn't change its size or shape, it doesn't matter if it's rotated, reflected or translated, they will be congruent.

When the trapezoid was rotated creating another one, the two shapes didn't change its size or shape, so Tiffany can be certain they are congruent.



A number x is less than 8 or at least 4.

Answers

Answer:

8>x≥4

Step-by-step explanation:

x cannot be greater than 8 but is greater than or equal to 4

What is the shape of f(x)

Answers

f(x) is concave down on an interval I if all of the tangents to the curve on I are above the graph of f(x)

0.002 in standard form

Answers

Answer:

0.9

Step-by-step explanation:

im correct 100

write the equation of a line in slope-intercept form that has a slope of 2/3 and a y-intercept of (0,4)

Answers

Answer:

2/3+0x4=2/3

Step-by-step explanation: that was math right there

What is the radius of a circle that has a circumference of 3.14 meters?

Answers

Answer:

.5 meters

Step-by-step explanation:

to find the circumference the equation is C = 2(pie)r so if you have known circumference you would go circumferece (3.14) divided by 3.14(pie) times 2  to find the radius which is .5

Answer:

r=0.5m

=is suppposed to be wavy

Step-by-step explanation:

Keeley ordered 240 T-shirts to sell at the school carnival. She paid $3.20
per shirt, plus 5% of the total order for shipping. When she sells each T-
shirt at the carnival, she adds a 150% markup to the total price she paid for
the shirt (including the cost of shipping). What is the selling price of each T-
shirt?

Answers

Answer:

We have 200 shirts

Cost $2.80 each

plus a 5% charge for shipping.

Selling price

150% markup

Recall when we use percentages, we need to express them as decimals.

Michelle's cost for each shirt was

2.80 (1.05) = 2.94

The markup is

2.94 (1.50) = 4.41

The markup is added to the cost to get the final selling price.

2.94 + 4.41 = $7.35

Michelle will sell each shirt for $7.35.

Let’s reword the question to make it simpler to understand:

Keeley pays $3.20 per shirt + 5% for shipping.

She sells them at the carnival for 150% the price she paid.

First of all we should work out how much the 5% shipping cost Keeley.

If the shirts are $3.20 that means 10% is $0.32, to get 5% we divide that by 2. This means 5% is $0.16, therefore shipping is $0.16.

The total price Keeley pays per shirt is $3.20 + $0.16 = $3.36.

Now let’s find out 10% of $3.36, which is $0.336, then multiply that by 15 to get 150%:

5.04

Therefore Keeley sells each shirt for $5.04

convert 7yd 2ft = ____ft

Answers

Answer:

23 feet

Step-by-step explanation:

1 yard = 3 feet, so 7 yards is 21 feet, plus 2 is 23 feet.

23ft got it right no my test

Container A and Container B have leaks. Container A has 800 ml of water, and is leaking 6 mil per minute. Container B has 1,000 ml, and is leaking 10 mil per minute. Write and equation that would show how many minutes, m, it take for the two containers to have the same amount of water.

Answers

Answer:

50 minutes (I think)

Step-by-step explanation:

A= 800 - 6m

B = 1000 - 10m

800 - 6m = 1000 - 10m

4m = 200

50 = m

HELP PLEASE will mark brainly

Answers

Answer:

.6 is more than 1/2

.34 is less than 1/2

.812 is more

.9 is more

.099 is less

Step-by-step explanation:

1/2 as a decimal is .5 so anything larger than it will be .51 or greater and anything less will be .49 or less

Answer:

.6 is more than 1/2

.34 is less than 1/2

.812 is more than 1/2

.9 is more than 1/2

0.99 is more than 1/2

Step-by-step explanation: What is 1/2? 0.5. Look at the tenths place. Is the tenth higher than 5 or less than 5? But here is a warning: If you are comparing 1/2 and 1.4, 1.4 is greater than 1/2 because 1/2 is less than 1.

A club has four officials : president, vice-president, secretary, and treasurer. If a member cannot hold more than one office, in how many ways can the officials be elected if the club has - (12 members) *​

Answers

Answer:

votes

Step-by-step explanation:

Select the table that represents a linear function. (Graph them if necessary)

Answers

Wait sorry I don’t see the tables and the linear functions

Answer:

b

Step-by-step explanation:

Which equation can be used to solve for x in the diagram?

HELP ASAP!!

Answers

The answer is b
5x+3x=180
This is because a straight line is 180 degrees and and both 5x and 3x make a straight line of 180

ANSWER THIS PLEASEEEEES​

Answers

-2!!! hope this helps!:)

-4x - 5y = 3
4x+8y=-24

Answers

Answer:

damm this looks hella hard

Step-by-step explanation:

Answer:y=-7, x=8

Step-by-step explanation:add two equations together, 4x+-4x and -5y + 8y, and so 3y=-21, and you get y and go on from there, getting the answer.

a window washer cleaned 28 windows in 4 hours. At this rate how many windows did he clean in 9 hours

Answers

Answer:

63

Step-by-step explanation:

28/4 = 7 windows per hour

7 × 9 = 63 windows in 9 hours

Estimation helps you check your answer by seeing if the estimate is close to the result you got. ... Estimation is useful when finding actual products and solving real-world problems because if your actual answer is close or exactly what you had estimated your answer will most likely be correct.

Answers

Answer:

Estimation is useful when finding actual products and solving real-world problems because if your actual answer is close or exactly what you had estimated your answer will most likely be correct.

Answer:

nuggts

Step-by-step explanation:

Need help ASAP need to know if these questions are SSS,AA,SAS, or none. Plz only answer if 100% correct.

Answers

Answer:

9: AA

10: NONE

11: SAS

12: AAA

Step-by-step explanation:

Just look my man

A telescope is on sale for $126. This represents a 30% discount. What was the original price of the telescope?

Answers

Answer:

163.80 hope this helped

Step-by-step explanation:

2(P +1) + 3(P + 2 ) > 2
need help pls

Answers

Answer:

Please check the explanation.

Step-by-step explanation:

Given the expression

[tex]2\left(P\:+1\right)\:+\:3\left(P\:+\:2\:\right)\:>\:2[/tex]

solving the expression

[tex]2\left(P\:+1\right)\:+\:3\left(P\:+\:2\:\right)\:>\:2[/tex]

as

[tex]2\left(P+1\right)+3\left(P+2\right)=5P+8[/tex]

so the expression becomes

[tex]5P+8>2[/tex]

subtracting 8 from both sides

[tex]5P+8-8>2-8[/tex]

[tex]5P>-6[/tex]

Dividing both sides by 5

[tex]\frac{5P}{5}>\frac{-6}{5}[/tex]

[tex]P>-\frac{6}{5}[/tex]

Therefore,

[tex]2\left(P+1\right)+3\left(P+2\right)>2\quad :\quad \begin{bmatrix}\mathrm{Solution:}\:&\:P>-\frac{6}{5}\:\\ \:\mathrm{Decimal:}&\:P>-1.2\\ \:\mathrm{Interval\:Notation:}&\:\left(-\frac{6}{5},\:\infty \:\right)\end{bmatrix}[/tex]

The graph is also attached below.

what is the slope of (1,3) and (2,-4)

Answers

Answer:

1/-7x

Step-by-step explanation:

All you have to do is find the distance between both points.

What makes an equation with an inequality symbol true?

Answers

Answer:

In an equation, the two expressions are deemed equal which is shown by the symbol =. Where as in an inequality, the two expressions are not necessarily equal which is indicated by the symbols: >, <, ≤ or ≥. ... If the statement is true, the number is a solution to the equation or inequality.

Step-by-step explanation:

Q1.is the given value of the variable , s, a solution to the inequality?s > -2.25; s = -2.2
1.yes 2.no
Q2.which value of the variable is a solution of the inequality?t > -7
1. -9
2. -8
3. -7
4. -6

Answers

Answer:

1.Yes

Step-by-step explanation:

Alicia has been putting her money from work into her savings account. The equation f(x)=13x+100 can be used to represent the increase of money to her savings account. Find f(18).

Answers

Answer:

f(18)=334

Step-by-step explanation:

f(x)=13x+100f(18) = 13(18)+100f(18)=234+100f(18)=334

Next week your math teacher is giving a chapter test.
The test will consist of 35 questions. Some problems
are worth 2 points and some problems are worth 4 points.
There are 20 questions worth 2 points. How many
problems of 4 points are on the test?
I
November 12: 4-1. Solving Page
2

Answers

Answer:

15

Step-by-step explanation:

35-20= 15

Question 6 (2 points)
Use the graph to find the value of f(x) when x=1 for the function f(x)=x2-5.

Answers

Answer: is Butt cheeks on a stick yes yes

3x-2y if x =6 and y= -3
What's the answer?

Answers

Answer:

24

Step-by-step explanation:

3x-2y

3(6)-2(-3)

18-(-6)

18+6

24

Answer:

The answer is 24.

Step-by-step explanation:

3x-2y if x =6 and y= -3

3 times 6 equals 18

2 times -3 equals -6

18-(-6)=24

Helphelphelphelphelp

Answers

Answer:

D

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

You have to add you exponents and the missing exponent which is 14 plus 2 equals 16

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