2x-3y=-2 y=-4x+2 can someone use substitution method for this question

Answers

Answer 1

Answer:

2x+4y=0

Step-by-step explanation:


Related Questions

What if the diameter of the inner sphere is 1.8 meters. What is the volume of the inflated space?

Answers

Answer:

Volume is 3.05m³

Step-by-step explanation:

This problem bothers on the mensuration of solid shapes, sphere

Step one

The formula for the volume of a sphere is expressed as

V=4/3πr³

Step two

Given data

Diameter d = 1.8m

Radius r = d/2= 1.8/2= 0.9m

Step three

Substituting our given data we have

V= 4/3*3.142*0.9³

V= 4/3*3.142*0.729

V= 9.162/3

V=3.05m³

Chad's bedroom floor is 19 feet long and 19 feet wide. He has an area rug on his floor that is 5 feet long and 8 feet wide.

Which statement tells how to find the amount of the floor that is not covered by the rug? Select all that apply.

A Add 19 + 19 + 5 + 8.
B Subtract 40 from 19 × 19.
C Subtract 19 × 8 from 19 × 5.
D Add 19 × 19 and 5 × 8.
E Subtract 5 × 8 from 19 × 19.
F Subtract 19 × 19 from 5 × 8.

Answers

Answer:

B and E

Step-by-step explanation:

Subtract the area of the rug from the bedroom floor.

Answer:

E

Step-by-step explanation:

Area of the floor that is not covered = Area of floor - area of rug

= 19 *19 - 5*8

= 361 - 40

= 321 Sq.ft

As the speed of a ship increases, the time remaining in the journey decreases. This is an example of what type of correlation?)

a)Can't be determined



b) No correlation

C)

Negative correlation

D)

Positive correlation

Answers

Answer:

I think negative correlation

Step-by-step explanation:

Answer:

negative correlation is the answer

Step-by-step explanation:

Please help! Its geometry

Answers

Answer:

48 cm^2

Step-by-step explanation:

The lateral surface are is the sides

We have 4 triangles that are identical

Find the area of one of the triangles and multiply by 4

A = 1/2 bh

A= 1/2 (6) *4

A = 12 cm^2

Multiply this by 4 for the 4 sides

LSA = 4*12 = 48 cm^2

Answer:

48 cm^2

Step-by-step explanation:

The lateral surface are is the sides

We have 4 triangles that are identical

Find the area of one of the triangles and multiply by 4

A = 1/2 bh

A= 1/2 (6) *4

A = 12 cm^2

Multiply this by 4 for the 4 sides

LSA = 4*12 = 48 cm^2

Read more on Brainly.com - https://brainly.com/question/16473299#readmore

Step-by-step explanation:

What is the sum of 1-2 and V-18?

Answers

Answer:

v-19

Step-by-step explanation:

Answer:

It depends on what you mean.

Step-by-step explanation:

If its to separate questions,

1-2= 1

V-18= -13

If its one whole question then

1-2 - V-18= 14

1-2 / V-18= -0.07692307692

1-2 * V-18= -13

1-2 + V-18= -12

Hope this helps! :D

Which expression re presents the volume of a cube whose edge length is 60 units

Answers

Answer:

60^3, so choice A

Step-by-step explanation:

The right answer of question no 20 is (60)^3.

well,I have given the answer of next one question also.

Look at the attached picture

Hope it will help you

Good luck on your assignment

help plz question is in the photo

Answers

Answer:

A. Trinomial

Step-by-step explanation:

It says it's a polynomial and that based on the number of terms. So right then you can cancel out cubic and quadratic because they aren't polynomials. Also:

Cubic is just a variable with the exponent of 3. Examples:

[tex]x^3,y^3,z^3[/tex]

Binomial is a polynomial with 2 terms. Examples:

[tex]5x+3; 6x+2; x+7[/tex]

A quadratic has a division sign.

f(x)=25x^2−10x+1f, left parenthesis, x, right parenthesis, equals, 25, x, squared, minus, 10, x, plus, 1
What is the value of the discriminant of f?
How many x-intercepts does the graph of f have?
PLEASE HELP

Answers

Answer:

What is the value of the discriminant of f?

0

How many x-intercepts does the graph of f?

1

Step-by-step explanation:

I promise you i just got this question and this is the answer

The discriminant of f is 0.

The function f has one intercept.

In the given quadratic function f(x) = 25x² - 10x + 1, the coefficients are:

a = 25

b = -10

c = 1

Now, let's calculate the discriminant:

Discriminant = b² - 4ac

            = (-10)² - 4 x 25 x 1

            = 100 - 100

            = 0

The value of the discriminant of f is 0.

If the discriminant is positive (greater than 0), the quadratic equation has two distinct real roots, which means the graph intersects the x-axis at two different points.

If the discriminant is zero, the quadratic equation has one real root, and the graph touches the x-axis at one point (or has a double root).

If the discriminant is negative, the quadratic equation has no real roots, and the graph does not intersect the x-axis.

In this case, since the discriminant is 0, the graph of f has one x-intercept (or one real root).

Learn more about Discriminant here:

https://brainly.com/question/33365847

#SPJ2

Jen can bike 12 miles in 40 minutes. How much time will she need to bike 30 miles if her speed remains the same? PLEASE HELP QUICK

Answers

Answer: 100 minutes

Step-by-step explanation:

With the given information, we can use a proportion to figure out how long it would take for Jen to bike 30 miles.

[tex]\frac{12mi}{40min} =\frac{30mi}{x} \\[/tex]

[tex]12x=30*40[/tex]

[tex]12x=1200[/tex]

[tex]x=100[/tex]

Answer:
100

40 divided by 12 and then multiply it by 30.

Given f(x)=x^2 and g(x)=5x find f(g(-2))

Answers

Answer:

100

Step-by-step explanation:

Answer: 100

Step-by-step explanation:

Students were asked how many pairs of shoes they owned. Their responses were 8, 2, 1, 5, 7, 6, 2, 2, 8, and 3.

The mean of the data is?
4.4
The median of the data is?
4
The mode of the data is?
2
The range of the data is?

Answers

The range in 7 because you take


8-1 which is 7

Answer:

mean is 4.4

median is 4

mode is 2

range is 7

Step-by-step explanation:

Which statement is not necessarily true

Answers

Answer:

Line PQ is congruent to Line QR

Step-by-step explanation:

To figure this out, you can use a process of elimination. A rectangle as 2 congruent parallel sides, thus eliminating the answer choice of "A" and "B." Also, a rectangle has four 90° angles, eliminating answer choice "C."

This statement isn't necessarily true because not all rectangles are squares, so this means that Line PQ won't always necessarily be congruent to Line QR.

Seventh grade > DD.7 Compound events: find the number of outcomes HZR
You roll a die and pick a marble. How many outcomes are possible?
Submit

Answers

Sjsisusuahsjejejeej c

what is the length of CD

Answers

Answer:

20 yds.

Step-by-step explanation:

From C to E 10 yds. so if you double that you get 20 yds.

Brainliest plz

Find the area. Will mark brainliest.

Answers

Answer:

Area of shaded part of triangle

=(18*12/2)-(10*12/2)

48mm²

A restaurant added a new outdoor section that was 40 ft'. It
was 4 feet wide. How long is their new section?

Answers

Answer: 10

Step-by-step explanation:40 ft is the height and 4is the width so divide 40 by 4 and 10 is your answer

Subtract
(3x² + 7) – (3x - 2)

Answers

Answer:

3x^2 - 3x + 9

Step-by-step explanation:

you combine like terms. so the only things you can subtract is 7 - -2 which is actually 7 + 2. hope this helped

Answer:

(3x² + 7) – (3x - 2)= 3(x²-x+3)

Step-by-step explanation:

3x² + 7- 3x - 2   -add 7 and 2 to get 9

3x²- 3x+9         -factor the common term which is 3

3(x²-x+3)          -then here's you answer

Simple Probability - Item 20781
Question 4
Which of the following events has a probability closest to 1?
CLEAR
CHECK
It will snow in July in Phoenix, Arizona.
If you roll a die, it will come up with an even number.
If you flip a coin, it will come up either heads or tails.
The next child born in the United States will be a girl.
O

Answers

Answer:

C. If you flip a coin, it will come up either heads or tails.

Step-by-step explanation:

A. My guess is it doesn't rain much in Phoenix in July. A probability of 1 means it will happen for sure, so this is not it.

B. A die has 3 even numbers and 3 odd numbers. The probability of rolling an even number is 3/6 = 0.5. This is not it.

C. If you flip a coin, you either get heads or tails. The probability of heads or tails is 1 since one of the two outcomes will always happen. This is the answer.

D. The probability of the birth of a girl is 1 out of 2, so it is 0.5. This is not it.

Answer:

If you flip a coin, it will come up either heads or tails. It either will fall on heads or tails everytime so that is closest to one.

Step-by-step explanation:

Help please! Check picture!!

Answers

Answer:

5

Step-by-step explanation:

They are different by 5 percantages

The quadrilateral ABCD is a rhombus with diagonals AC = 12 ft and BD = 4 ft. The points M and N divide diagonal AC on three equal parts. Prove that BMDN is a square and find its area.

Answers

Answer:

area of BMDN 8 ft²

Step-by-step explanation:

In BMDN the diagonals are BD and MN.

MN is 12/3 = 4 ft long, and BD = 4 ft.

A rhombus with equal diagonals is a square, so BMDN is a square.

In the right triangle BDN, the diagonal BD is the hypotenuse, then:

DN² + NB² = BD²

but DN = NB, then:

2*DN² = 16 ft²

DN² = 8 ft²

The area of BMDN is computed as one of its sides squared. Then, DN² is its area

QUICK ILL GIVE YOU 20 POINTS
Paul weighs 36 kg. Felix weighs half as much as Paul, and Frank weighs 4 kg more than Felix.

Answers

Answer:

Idk what you need but here is everything possible

Step-by-step explanation:

Paul = 36kg

Felix = 18kg

Frank = 22kg

36+18+22=76

Their weight all together is 76kg.

Answer:

Paul is 36 kg

Felix is 18 kg

Frank is 22 kg

Step-by-step explanation:

Pauls answer is in the question (36kg)

Felix is half of paul 36/2=18

Frank is 4 kg more than Felix 36/2=18  18+4=22

PLS HELP PLS HELP!!!

Answers

Answer:

40 inches^3

Step-by-step explanation:

Look at the attachment

Answer:

40 inches^3

Step-by-step explanation:

Find the volume of the following cone. Use 3.14 for π.

Question 2 options:



9847.04 cubic meters


39388.16 cubic meters


10257.33 cubic meters


41029.33 cubic meters

Answers

Answer:

A. 9847.04 cubic meters

Step-by-step explanation:

Answer:

B; 39388.16 cubic meters

Step-by-step explanation:

I think the following information will make things clearer:

The formula for finding the volume of a cone is V = πr²h/3:

We can substitute our lengths to find out the volume.

[tex]28^{2} = 784\\48 \: \div \: 3 = 16\\16\: \cdot \: 784 \: \cdot \: 3.14\\= 39,388.16[/tex]

Thusly, the volume of the cone is [tex]\boxed{39,388.16}[/tex].

Hope this helps!! ((:

What is 25 percent of 48?

Answers

Answer:

12

Step-by-step explanation:

Divide 48 into 4 parts

Answer:

(25:100)*48=

(25*48):100=

1200:100=12

Answer=12

Will Mark Brainliest


Parabola: You must include the focus, vertex, lactus rectum, directrix, and the domain from the equation: y=-(x-0)^2 +15

Hyperbola: You must include the equations of the asymptotes and the domain from the equation: (2y^(2))/(b^(2))-(x^(2))/(a^(2))=7

Ellipse: You must include the foci, vertices, and eccentricity from the equation: 4x^(2)-1x+10y^(2)-50y-1=0

Answers

Answer:

Hi, i'm not trying to be rude but, you can search it up. there are many videos that explain it.

Step-by-step explanation:

Estimate the square root to the nearest (a) integer and (b) tenth.

√-335/2

Answers

I had the same question on my homework.

Answers:

a) -13

b) -12.9

Which expression is equivalent to
-80 ?

Answers

Answer

oof i need that  to i would answer but im late too

Step-by-step explanation:

sorry

When there is no outlier is thebetter measure of center for a set of data


Median
Mode
Range
None of the above

Answers

Answer:

Median

Explanation:

The median is the middle number. This answer fits best with the question asked.

The mode is the number that occurs the most. This number doesn't really have a correlation to the middle of this data.

The range is just how many numbers the data spans across. It has no relation to the middle of the data.

im pretty sure its median :)

Can somebody explain step by step ?

Answers

Answer:

[tex]3m\sqrt[5]{2m^4p^4}[/tex]

Step-by-step explanation:

We want to find the fifth root of [tex]486m^9p^4[/tex]. In order to do so, we need to factorise

Let's factorise 486 first:

486 = 2 * 243 = 2 * [tex]3^5[/tex]

Ah, we see that [tex]3^5[/tex] can be taken out and becomes 3 outside of the 5th root since the 5th root of

Now look at the variables. We see that since we have p^"4", whose exponent is less than 5, it's impossible for us to write it as a power of 5, so we leave this in the root.

We also have m^"9", which can be written as m^"5" * m^"4". Again, we see that the m^"4" term will have to remain inside the root, but we can take out the m^"5", which becomes m.

Our final answer is thus: [tex]3m\sqrt[5]{2m^4p^4}[/tex].

~ an aesthetics lover

What is the net change in the temperature relative to when lko woke up

Answers

Complete question:

Between the time iko woke up and lunchtime, the temperature rose by 11°. Then by the time he went to bed, the temperature dropped by 14°.

What is the net change in the temperature relative to when lko woke up?

Answer:

The net change in the temperature relative to when lko woke up =

[tex]\bold{-3}[/tex] °

Step-by-step explanation:

Given that between his wake up time and lunch time, temperature rose by  11°. Let the new temperature be  [tex] \bold{T1} [/tex] and let the initial temperature(temperature before wakeup time) be  [tex] \bold{T} [/tex]

Since the temperature rose by 11°, the new temperature after Iko woke up, T1, would be derived by adding 11° to the initial temperature.

i.e,  T1 = T + 11......................(1)

At bed time the temperature dropped by 14°. Therefore, the temperature would now be 14 less than the new temperature T1. It is expressed as:

T1 + (-14).......................... (2)

Let's substitute T + 11 for T1 in equation 2, we have:

T + 11 + (-14)

To find the expression for the net change in temperature, let's subtract the initial temperature T, from (T+11 -14) i.e,

ΔT = (T + 11 - 14) - T

Solving further, we have:

ΔT = T - T + 11 - 14

ΔT = 11 - 14

ΔT = -3°

Therefore, the net change in the temperature relative to when lko woke up is = -3°

Other Questions
Need help !!! I added a picture ^ What event was most significant in bringing about the end of the Cold War? what is 6 1/5 + (-7 3/5) NEED HELP this my work but i need more on how the corona virus has affected the country and all of us around the world"Our country is going through a lot. The coronavirus has taken a toll on our lives. It has affected thousands of people and is still going on. Many schools have been canceled all year which many students and families find it hard to believe. Weve learned to adapt to eLearning and its advantages. Quarantine has advantages like if people stop going outside there would be less chances of death caused by the virus" PLEASE ADD TO IT Which of these tables lists all the possible outcomes of flipping 3 coins? (Each row represents one outcome.) Choose all answers that apply: Choose all answers that apply: Which is the solution to2x y = 14x + y = 11 ?A) (2, 3)B) (2, 3)C) (3, 2)D) (3, 2) ANSWER ALL 10 QUESTIONS PLZ1. If someone claims to be a professor or another trained scientist, you should _____.A.make sure that they really are oneB.trust any information they give youC.get your evidence from other sourcesD.be especially careful of misleading numbers2. ExitIf you have collected evidence from very small experimental groups, how does that affect the validity of your evidence?A.Small groups generally make your evidence less valid.B.Small groups generally make your evidence more valid.C.Small groups generally have no effect on the validity of your evidence.3. Which of these is an example of evidence supporting the theory that an asteroid impact caused the dinosaurs to become extinct?A.Dinosaur fossils have been found all over Earth.B.A large crater was found dating to the same time period.C.Huge lava flows formed in India at the same time period.D.New kinds of plants and animals lived on Earth after the dinosaurs. 4. Suppose you were studying the diet of mice. If you decided to change your experiment from studying the effects of corn in the diet of the mice to studying the effects of wheat, how would that affect the validity of the evidence you collect?A.The evidence would be less valid.B.The evidence would be more valid.C.The validity of the evidence would not change.5. Suppose an experiment compares two groups that are very different from one another. How does this affect the validity of the evidence collected in that experiment?A.The evidence would be less valid.B.The evidence would be more valid.C.The validity of the evidence would not change.6. What does having biased groups mean?A.The groups are too small.B.The groups are not similar enough.C.The evidence does not come from an expert source.D.The evidence collected from the groups is very reliable.7. ExitA good place to start when evaluating scientific evidence is to _____.A.redesign the procedure used to collect the evidenceB.make your own hypothesis and do an experiment to test itC.look at whether the evidence was collected using good scientific principlesD.compare it to evidence from experiments about some other topic in science8. Suppose you are trying to build support for your theory about what kind of food an extinct sea creature ate.Which of the following could be evidence supporting your theory?A.photos of modern sea creaturesB.charts showing the most popular kinds of seafoodC.fossils showing the contents of the creature's stomachD.maps showing the edges of Earth's oceans at the time that the creature lived9. If groups are biased, then _____.A.the groups are too smallB.there is no dependent variable in the experimentC.the controls in the experiment are not good enoughD.there is not an expert source gathering the evidence10. You should think critically about scientific evidence supporting product claims because _____.A.there is no comparison groupB.the product has been evaluated by a reliable sourceC.the information may be distorted in order to sell moreD.there could be another product that is a better value for the money the Scientific determineHow did scholars duringof somethingwere true ? Critically examine the assertion that patriarchy should be blame for gender inequality in ghana What is the equation to the quadratic function that has zeros at -6 and 16? Group of answer choices x2 + 22x + 96 = 0 x2 + 10x - 96 = 0 x2 - 22x + 96 = 0 x2 - 10x - 96 = 0 What are some examples of inequality in Chapter 9 of animal farm?WILL MARK BRAINLIEST Which of the following describes how to translate the graph of y = Ixl to obtain the graph of y = lx + 1l - 2?shift right 1 and down 2shift left 1 and down 2shift right 1 and up 2 What must x be so that the handle end of the bat remains at rest as the bat begins to move? (Hint: Consider the motion of the center of mass and the rotation about the center of mass. Find x so that these two motions combine to give v=0 for the end of the bat just after the collision. Also, note that integration of equation =dL dt gives L=t1t2()dt. ) Your bagel shop uses both capital and labor in the production of bagels. In this production process capital and labor are substitutes. If you install a new oven and the marginal product of capital increases, you will: a. reduce the number of workers you employ b. increase the number of workers you employ c. reduce the amount of capital you are using not make any changes since you are already maximizing profit What is the equation to the quadratic function that has zeros at -12 and 7? Group of answer choices x2 - 19x + 84 = 0 x2 - 5x - 84 = 0 x2 + 19x + 84 = 0 x2 + 5x - 84 = 0 let g(x) = 2x and h(x) = x^2+4. Evaluate (h x g)(-3). One of the first things we notice in this dream is anamazing universalism. 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C Parents are better than children at making friends with the people who live in their neighborhood. D Parents are better than children at making friends with those from different social classes.