please help pls show ur work

Please Help Pls Show Ur Work

Answers

Answer 1

Answer: a= -3 and b=2.

Step-by-step explanation:

If a system of linear equations has infinitely many solutions, then

Ratio of coefficient of y= ratio of coefficient of x = ratio of constants.

Given system: [tex]y=2x+a[/tex]

[tex]y=bx-3[/tex]

It it has infinitely many solutions, then

[tex]\dfrac{1}{1}=\dfrac{2}{b}=\dfrac{a}{-3}\\\\\Rightarrow\ \dfrac{2}{b}=1\ \ \ \text{ and }\ \ \dfrac{a}{-3}=1\\\\\Rightarrow\ b=2\ \ \ \text{ and } \ \ a=-3[/tex]

hence, a= -3 and b=2.


Related Questions

Fine c. Round to the nearest tenth

Answers

Answer:

14.9

if you need it

side a is 24.04867

9514 1404 393

Answer:

  c ≈ 14.9 cm

Step-by-step explanation:

I personally like to use a proportion that has the unknown in the numerator. The angle opposite c is ...

  C = 180° -150° -12° = 18°

Then the law of sines tells us ...

  c/sin(C) = b/sin(B)

  c = sin(C)·b/sin(B) = sin(18°)/sin(12°)(10 cm)

  c ≈ 14.9 cm

There are 15 boys and 45 girls competing in a race. What is the ratio of girls to boys in the race , lowest terms ?

Answers

Answer =  3:1

==========================================

Work Shown

45 girls : 15 boys

45/15 girls : 15/15 boys .... divide both parts by 15

3 girls : 1 boy

This tells us there are three times as many girls as there are boys.

We write this as the ratio 3 : 1. The order of the terms is important. We cannot say 1:3 since that would imply there are more boys than girls, but it's the other way around.

(10x^2+3x+9)+(5x^2+x+4) (10x 2 +3x+9)+(5x 2 +x+4)

Answers

Answer:

50x^4 +25x^3 +103x^2 +25x +49

How can you tell the difference between a strong linear association and a weak linear association?

Answers

I think it’s A for some reason

what is s = 2d/t, after it says solve for d

Answers

Answer:

s = 2d/t

st = 2d

final answer : st/2 = d

St/d=2 is the answer.

A mystery number is multiplied by 11 then 10 is subtracted from it to give you a result of 34. What is the mystery number?

Answers

Answer:

4

Step-by-step explanation:

(?*11)-10=34

(?*11)=34+10

(?*11)=44

44/11= 4

1. Determine the missing value in this table of values for the function y = 2
y = 24
0.5
-1
0
1
2

Answers

Answer:

-1

Step-by-step explanation:

Ghana is a great place to work for and it is the most versatile and affordable way to do business with you in the future of the following statements is of a hole in your heart to be added

please help me do this!
both questions!​

Answers

question a is 48 i think! because if you do 12 x how many side there are. it’s 4 so 12 x 4

Answer:

b) The height of the pyramid is 9.8 cm. what is the volume of the pyramid

Step-by-step explanation:

HELP ITS DUE TODAY! photo attached.

Answers

Answer:

360 for first place and 240 for second

Step-by-step explanation:

Let's say f is the first place prize, and s is the second prize.

Amaal: 4f + 2s = 1920

Brian: f + 3s = 1080

Now we can isolate and substitute.

f = 1080 - 3s

4(1080 - 3s) + 2s = 1920

4320 - 12s + 2s = 1920

10s = 4320 - 1920

10s = 2400

s = 240

f = 1080 - 3*240

 = 1080 - 720

 = 360

Which equation best represents the line? (4 points)

a
y = 1 over 3.x − 1

b
y = 3x − 1

c
y = −x + 1 over 3.

d
y = 3x + 1

Answers

Answer:

The equation of the line is y = 3x - 1b

Step-by-step explanation:

From the given graph

∵ The rule of the slope of the line is m = [tex]\frac{y2-y1}{x2-x1}[/tex]

∵ (x1, y1) and (x2, y2) are two points on the line

∵ The line passes through points (0, -1) and (1, 2)

x1 = 0 and y1 = -1

x2 = 1 and y2 = 2

→ Substitute them in the rule of the slope to find it.

∵ m = [tex]\frac{2--1}{1-0}[/tex] = [tex]\frac{2+1}{1}[/tex] = [tex]\frac{3}{1}[/tex]

m = 3

∵ The line intersects the y-axis at point (0, -1)

The y-intercept = -1

∵ The form of the equation of the line is y = m x + b

∵ b is the y-intercept

b = -1

→ Substitute the values of m and b in the form of the equation

∵ y = 3x + -1

y = 3x - 1

The equation of the line is y = 3x - 1

Bryan and Yuan started out at their houses and are biking towards each other. Bryan started
out first, and has already gone 5 miles. He bikes at a constant speed of 3 miles per hour.
Yuan just left, and rides at 4 miles per hour. When the boys meet halfway between their
houses, they will continue to the park together. How long will that take? How far will each
boy have ridden?

Answers

Answer:

Bryan and Yuan will meet after 5 hours, having traveled 20 miles each.

Step-by-step explanation:

Given that Bryan and Yuan left their homes at different periods of time and at different speeds, to determine how long they will meet and how much distance they will have traveled, the following calculation must be performed:

B = 5 + (3X)

Y = 4X

B = 5 + 3x2 = 11

Y = 4x2 = 8

B = 5 + 3x3 = 14

Y = 4x3 = 12

B = 5 + 3x4 = 17

Y = 4x4 = 16

B = 5 + 3x5 = 20

Y = 4x5 = 20

Therefore, Bryan and Yuan will meet after 5 hours, having traveled 20 miles each.

if 2 of the angles of a triangle are 30 and 70 degrees, the third angle measures ...

Answers

Answer:

The third angle would measure 80 degrees

Step-by-step explanation

The equal measure of each angle in a triangle adds up to 180 degrees. The first two angles of 70 and 30 equal 100. Thus, the third angle will measure out to be 80 degrees. Have a great day!

Does anyone know what 98x1892 is? I’m to lazy to solve and my head hurts sooo bad please help! And we can’t use calculators we have to have our cams on !

Answers

Answer:

Step-by-step explanation:

185416

Answer:

185,416 this is the answerr

A survey is conducted to find out the average number of hours

Answers

Americans work an average of 34.4 hours per week. The average hours per week worked varies based on gender, marital status, and race.

The sun’s mass is 1.998 * 10^30 kg. Saturn’d mass is 5.69 * 10^26 kg. How many times as great as the mass of Saturn is the mass of the sun? Show your work using scientific notation

Answers

Answer: The mass of the sun is 3.51 x 10^3 times greater.

Step-by-step explanation:

X= Mass of Sun/ Mass of Saturn

X= 1.998 x 10^30 / 5.69 x 10^26

1.998/ 5.69 = .351

10^30 / 10^26 = 10^4

You want to move the decimal a value so you would subtract 1 from 4

3.51 x 10^3

The mass of the Sun is 3.511 × 10³ (in scientific notation) times more than the mass of Saturn.

What is division?

The division means the separation of something into different parts, sharing of something among different people, places, etc.

The sun’s mass is [tex]1.998 * 10^{30}[/tex] kg.

Saturn's mass is [tex]5.69 * 10^{26}[/tex] kg.

Let the mass of the Sun be X times more than the mass of the Saturn mass.

The equation that can be written as

1.998 × 10³⁰ = X × 5.69 × 10²⁶

On simplifying, the value f X will be

[tex]\rm X = \dfrac{1.998 * 10^{30}}{5.69*10^{26}}\\\\X = 3511.42 \\\\X = 3.511 * 10^3[/tex]

The mass of the Sun is 3.511 × 10³ (in scientific notation) times more than the mass of Saturn.

More about the division link is given below.

https://brainly.com/question/369266

Please help this is due soon!
x+8≥9
Please graph solution on a piece of paper and take a picture.

Answers

Answer:Right?

-> 1-10

A right triangle has side lengths a, b, and c as shown below.
Use these lengths to find sinx, tanx, and cosx.
Help plsss

Answers

Answer:

Step-by-step explanation:

The value of sinx=c/b, cosx=a/b and tanx=c/a.

What are trigonometric ratios?

The sides and angles of a right-angled triangle are dealt with in Trigonometry. The ratios of acute angles are called trigonometric ratios of angles. The six trigonometric ratios are sine (sin), cosine (cos), tangent (tan), cotangent (cot), cosecant (cosec), and secant (sec).

Given that, a right triangle has side lengths a, b, and c.

We know that, sinθ=Perpendicular/Hypotenuse, cosθ=Base/Hypotenuse and tanθ=Perpendicular/Bse

From the figure,

sinx=c/b, cosx=a/b and tanx=c/a

Therefore, the value of sinx=c/b, cosx=a/b and tanx=c/a.

Learn more about the trigonometric ratios here:

brainly.com/question/25122825.

#SPJ2

. Eleanor earns $9.00 per hour. She worked 37 hours from Monday to Friday. What were her total wages?

Answers

Answer:

$333

Step-by-step explanation:

As, the total hours Eleanor works = 37

And per hour he gets = $9

So the total wage her gets = $9 x 37

= $333

find the slope of the lines​

Answers

Answer:

Zero

Step-by-step explanation:

The graph depicts a horizontal line.

All horizontal lines have no slope. If you pick two points from the line and use the slope formula, the numerator would be zero.

Zero divided by any number is zero.

Hope this helps.

will give brainliest !please help

4b+7b+5​

Answers

Answer:

Terms = 4b , 7b , 5

coefficient = 4 , 7

constant = 5

Step-by-step explanation:

Please look at this picture because inside there have explain about your questions,,,and hope you understand ☺️

She had $3000. She spend 40% of the money in smart TV and 15% of the remainder on Game Set. (a) What % of the money had she left? (b) How much money had she left?

Answers

Answer: She had left 54% of the money which is $1620.

Step-by-step explanation:

40% of $3000 = $1200

15% of $1200 = $180

$3000 - ($1200 + $180)

$3000 - $1380 = $1620

$1620 is the money she had left.

$1620 is 54% of $3000

She had 54% left of the money.

Hope that helped~!

Which of the following statements best explains why this graph shows a set of points that represent a relation that is not a function of x?

There are y–values which are not paired with an x–value.
There are x–values which are not paired with a y–value.
There are y–values which are paired with multiple x–values.
There are x–values which are paired with multiple y–values.

Answers

Answer:

C: There are y-values paried with many x

Step-by-step explanation:

does anybody know how to get the 3rd mark ?

Answers

Answer:

Long sides are 1.4 and short sides are 0.7

Step-by-step explanation:

the rectangular prism is made up of unit cubes that measure 1 in 3 inch​

Answers

Answer:

how many cubes are there?

Step-by-step explanation:

.

Lesson 1 Homework
Lin says that a snack machine is like a function because it outputs an item for each code input. Explain why Lin is correct.

Answers

The answer lin Lin wants the machine snacks

Lin is correct.

What is a function?

An expression, rule, or law that defines a relationship between one variable (the independent variable) and another variable, is called its function.

Given that, Lin says that a snack machine is like a function because it outputs an item for each code input.

Lin is correct because, function tells the relation between an output to its input.

A function is a relation from the set of the inputs to a set of all possible outputs, where each input is related to exactly one output.

So Lin's opinion about snack machine is correct as the snack machine is output an item for each code input.

Learn more about function, click;

https://brainly.com/question/12431044

#SPJ5

5/6 + 7/12 = 17/12 True or False

Answers

Answer:

True

Step-by-step explanation:

Answer:

true

Step-by-step explanation:

5/6 =10/12

7+10=17

i need help and will be giving brainliest to right awnsers

Answers

Answer: the answer to this is  9 miles an hour

Step-by-step explanation: 1. What this is asking is to make the fraction a bit easier to understand. So all we do is divide the numerator by the denominator. You can use this method for any other math problems like this also.  

2.  All this chart is doing is multiply the input or output by 9. If you look you can see the hours is multiplied by nine. I hope this helped.

How many 1/2 inch cubes does it take to fill a box with width of 1 1/3 inches , length 2 2/3 inches, and height 1 1/4 inches?"

Answers

Answer:you would need about 16 1/2 inch cubes

Step-by-step explanation:to fill in a 2 2/3 and a hi of 11/4

is 9.521521521 rational or irrational

Answers

If the numbers after the decimal terminate, yes, it's rational.

9.521521521 = 9,521,521,521 / 1,000,000,000

If they don't terminate, but the pattern continues (which I suspect is the case here), yes, it's still rational.

If x = 9.521521521…, then

1000x = 9521.521521521…

Subtract x from this to eliminate the fractional part:

1000x - x = 9521.521521521… - 9.521521521…

999x = 9512

x = 9512/999

If they don't terminate, but the pattern does not continue, meaning the next few digits could be something random like

9.52152152119484929271283583457…

then the number would be irrational.

Tuesday's high temperature was 25 °F. The temperature dropped
by 30 °F overnight. What direction on the number line is this?

Answers

Answer:

up and down

oiguddyzyhc uvkikvcuydtx I u guys and all that you can g

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