solve by factorisation 2x^2+3x-20=0

Answers

Answer 1

Answer:

(2x-5)(x+4)

....................


Related Questions

Lara's puppy weighs 3.5 pounds and will gain approximately 0.5 pounds per
month.
Monica's puppy weighs 2 pounds and will gain 1 pound per month.
After how many months will both puppies weigh the same amount?

Answers

3 months

We can use a systems of equations to find when the values will equal each other, with x equal to months

Lara's Puppy: 0.5x+3.5

Monica's Puppy: x+2

Now create an equation for these puppy's weights to equal each other, and solve:

0.5x+3.5=x+2

0.5x=1.5

x=3

HELP ME WITH THIS QUESTION PLZZZZZZZZZZZ, ALSO PLEASE SHOW UR WORK I NEED HELP I DON'T UNDERSTAND THISSSSSS

Answers

Answer: Jon has the best rate

Step-by-step explanation:

pls help the answers are listened below I am so sorry but thank you

Answers

Answer:

x=-6

Step-by-step explanation:

5x+2=6x+8

-5x     -5x

2=x+8

-8   -8

-6=x

How do you name a ray?

Answers

Answer:

By two points.

In the figure at the top of the page, the ray would be called AB because starts at point A and passes through B on its way to infinity. Recall that points are usually labelled with single upper-case (capital) letters

Step-by-step explanation:

Answer:

By two points.

In the figure at the top of the page, the ray would be called AB because starts at point A and passes through B on its way to infinity. Recall that points are usually labelled with single upper-case (capital) letters

Step-by-step explanation:

Solve the following system of equations graphically on the set of axes below
y = 3x - 6
y = -x+2

Answers

Answer:

y = 3x - 6

y = -x+2

A box of dried fruit has 54 calories in 3 servings. How many calories are there per serving?

Answers

Answer:

18 per serving

Step-by-step explanation:

54/3=18   just divide to find the unit rate

A department store buys 300 shirts for a total cost of $7,200 and sells them for $30 each. Find the percent markup.

Answers

Answer:

80%

Step-by-step explanation:

because 7200 / 300 equals 24 and 24 / 30 equals .8 so its 80% and if you want to check the answer you take 30 * .8 OR 80% and it gives you 24

The percent markup is 25%.

What is percent markup?

Markup percentage is calculated by dividing the gross profit of a unit (its sales price minus it's cost to make or purchase for resale) by the cost of that unit.

Given that, A department store buys 300 shirts for a total cost of $7,200 and sells them for $30 each.

Cost of one shirt = 7200 / 300 = $24

And they sold at $30 each,

Percent markup = 30-24 / 24 × 100

= 25%

Hence, the percent markup is 25%.

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-2n - 10n + 3 = -n + 5

Answers

This is what I got and I am sure this the answer

Which of the following values can be replaced with M so that this table of values represents a function? Select all that apply.
a. 9
b. 8
c. 7
d. -2
e. 5

Answers

A and d also e prolly

3. You are selling hot cocoa at an
amazing price of $0.80 a cup. You
want to make(earn) $ 48. How many
cups do you need to sell?

Answers

Answer:

you need to sell 60 cups

Step-by-step explanation:

48÷0.80= 60 cups

hope it helps!

please mark me brainliest

simplify the expression:
1. -0.8b^2+7.4b+(5.6b-0.2b^2)
2. (7.3y-y^2+4)+0.5y^2-(8.7y-2.4y^2)
PLZ HELP!!!!!
URGENT!

Answers

Answer:

1. -b^2+13b

2. 1.9y^2-1.4y+4

Step-by-step explanation:

1. -0.8b^2+7.4b+(5.6b-0.2b^2)

Simplify: -0.8b^2+7.4b+5.6b-0.2b^2

Add like terms: (-0.8b^2-0.2b^2)= -1b^2/-b^2 (7.4b+5.6b)= 13b

Answer: -b^2+13b

2. (7.3y-y^2+4)+0.5y^2-(8.7y-2.4y^2)

Simplify: 7.3y-y^2+4+0.5y^2-8.7y+2.4y^2

Add like terms: (2.4y^2-y^2)= 1.9y^2 (7.3y-8.7y)= -1.4y (don't forget about the 4)

Answer: 1.9y^2-1.4y+4

Samantha created part of a table to show her savings. She saved at the same rate each week.

Samantha’s Savings
Week
1
2
3
4
Money Saved

$18
$24


Which graph shows this relationship?
On a coordinate plane, a graph titled Weekly Savings has weeks on the x-axis and money saved on the y-axis. Points (1, 8), (2, 16), (3, 18), and (4, 24) are plotted.

On a coordinate plane, a graph titled Weekly Savings has weeks on the x-axis and money saved on the y-axis. Points (1, 6), (2, 12), (3, 18), and (4, 24) are plotted.

On a coordinate plane, a graph titled Weekly Savings has weeks on the x-axis and money saved on the y-axis. Points (1, 9), (2, 18), (3, 18), and (4, 24) are plotted.

On a coordinate plane, a graph titled Weekly Savings has weeks on the x-axis and money saved on the y-axis. Points (1, 0), (2, 9), (3, 18), and (4, 24) are plotted.

Answers

Answer:

I think b

Step-by-step explanation:

A gaint kite is contrstrused using bamboo for the edges and diagonals and card for sail. When mapped on the diagram, the ends are at P(2,-2) and R(14,-14) and the diagrams intersects at M. The short diagonals Qs divides RP in the ratio 3:1 and MP = MS calculate. C.The equation of diagonals​

Answers

Answer:

no free points lol

Step-by-step explanation:

Which ordered pairs are solutions to the inequality 3x-4y>5

Answers

Note: you did not provide the answer options, so I am, in general, solving this query to solve your concept, which anyways would clear your concept.

Answer:

Please check the explanation.

Step-by-step explanation:

Given the inequality

[tex]3x-4y>5[/tex]

All we need is to find any random value of 'x' and then solve the inequality.

For example, putting x=3

[tex]3\left(3\right)-4y>5[/tex]

[tex]9-4y>5[/tex]

[tex]-4y>-4[/tex]

[tex]\mathrm{Multiply\:both\:sides\:by\:-1\:\left(reverse\:the\:inequality\right)}[/tex]

[tex]\left(-4y\right)\left(-1\right)<\left(-4\right)\left(-1\right)[/tex]

[tex]4y<4[/tex]

[tex]\mathrm{Divide\:both\:sides\:by\:}4[/tex]

[tex]\frac{4y}{4}<\frac{4}{4}[/tex]

[tex]y<1[/tex]

So, at x = 3, the calculation shows that the value of y must be less

than 1 i.e. y<1 in order to be the solution.

Let us take the random y value that is less than 1.

As y=0.9 < 1

so putting y=0.9 in the inequality

[tex]3\left(3\right)-4\left(0.9\right)[/tex]

[tex]=9-3.6[/tex]

[tex]=5.4[/tex]

As 5.4 > 5

Means at x=3, and y=0.9, the inequality is satisfied.

Thus, (3, 0.9) is one of the many ordered pairs solutions to the inequality 3x-4y>5.

2 (4x - 1 ) = 8x -1. Is it one solution no solution or infintely

Answers

Answer:

one solution

Step-by-step explanation:

2(4x-1) = 8x -1

8x -1 = 8x-1

pls answer this question its for a test grade

Answers

Answer:

h

Step-by-step explanation:

Convert 5.7 yards to feet

Answers

Answer:

17.1 ft

Step-by-step explanation:

can you help me with my geometry

Answers

Answer:

yes I can I can I can I can I van

Do not blow up at me if I get this wrong! I'm not good at Geometry.

NP=3

AB= (looks about..) 10

Graph y=-x-6 YOU WILL BE MARK BRAINLIEST

Answers

Look at the attachment

what do i put the box like <6 but with the line under? cause when i checked if it was right it said it was wrong

Answers

Since it’s a closed circle it would be x≥6 with the line

Jenny is an architect and is working to find the side length of a room in a house plan she is
reviewing. She knows that she can find the side length from the area using the formula 8 =
A. She could also find the side length using the perimeter with the formula 9 = she wants to see
what the design would look like with an equal perimeter and area. She graphs the formulas and
hnds the intersection point. What does this intersection point tell her?
O Cannot be determined
The measure of the side length
The side length that creates an equal perimeter and area,
The total perimeter and area of the room

Answers

Answer: At first I though O but you would be able to use A because you are able to make that 9 = to that 8

Step-by-step explanation:

The intersection point tells her the side length that creates an equal perimeter and area.

What is perimeter?

A closed shape's perimeter is the sum of the lengths of its outside boundaries. The lengths of all the sides are added to determine the measurement.

Jenny is an architect and is working to find the side length of a room in a house plan she is reviewing.

She knows that she can find the side length from the area using the formula 8 = A.

She graphs the formulas and finds the intersection point.

The intersection point of the two equations represents the solution where the side length satisfies both the equations, giving an equal perimeter and area. Therefore, the intersection point tells her the side length that creates an equal perimeter and area.

To learn more about the perimeter of a shape:

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HELPPPP PLSS THIS IS URGENT WILL GIVE BRAINLEAST


What are the slope and y-intercept of the line?


A-The slope is approximately 3 and the y-intercept is 2.
B-The slope is approximately 1.33 and the y-intercept is 2.
C-The slope is approximately 2 and the y-intercept is 3.
DThe slope is approximately 2 and the y-intercept is 1.33.

Answers

Answer:

C

Step-by-step explanation:

In 8-11, Explain how to get the variable alone in each equation

8. 8y = 5.6

9. x ➗ 15.2 = 3

10. u ➗ 8.7 = 12

11. 31.4 = 3.14y

Answers

Step-by-step explanation:

8. You divide each side by 8

[tex] \frac{8y}{8} = \frac{5.6}{8} [/tex][tex]y = \frac{5.6}{8} [/tex]

9. You multiply each side by 15.2

[tex]x = 3 \times 15.2[/tex]X=45.6

10. You multiply bith sides by 8. 7

[tex]u= 12 \times 8.7[/tex]

11. You divide both sides by 3.14

[tex]3.14y = 31.4 \\ y = \frac{31.4}{3.14} \\ y = 10[/tex]

Hope this helps, have a wonderful day

What is the measure of angle 1

Answers

Answer: 100

Step-by-step explanation:

It is an alternate interior angle.

Which two elements are most likely to have similar physical properties?
A. copper and zinc
B. copper and silver
C. cadmium and indium
D. gallium and cadmium

Answers

B would be you’re answer


Hope you get everything done

Answer:

b

Step-by-step explanation:

Subtract what she has now from the total she needs. She needs ten. She has one 2 1/3 and 3 1/3 added is 5 2/3

Answers

Answer:

4 ⅓

Step-by-step explanation:

10 - 5 ⅔

10 - 5 × 3 + 2/3

10 - 17/3

3 × 10 - 17/3

30 - 17/3

13/3 = 4

-TheUnknownScientist

Algebra Question that I need help in since I’m taking a test

Answers

Answer:

D, the Addition Property of Equality

Step-by-step explanation:

This is the Addition Property of Equality. The Addition Property of Equality is, "If two expressions are equal to each other, and you add the same value to both sides of the equation, the equation will remain equal." In this case, the person added 5 to both sides. The expression is still equal to what is was before. I hope this helps!

Answer:

The answer is D

Step-by-step explanation:

Question 40 of 40
Estimate the line of best fit using two points on the line.

Answers

Answer:

B

Step-by-step explanation:

the ending is, +4 only one it could be

Answer:

B:     y = 1/2x + 4

Step-by-step explanation:

This is how I got my answer:

First, take the two points and find the slope of 2/4 which equals to 1/2

Then you need to look at the origin and follow the y-axis until you reach to the line, which is 4. This is how you get y = 1/2x + 4

hope this helps

Solve for x:
2x - 14 = 3x + 6

Answers

Answer:

x = - 20

Step-by-step explanation:

[tex]2x - 14 = 3x + 6[/tex]

Move 3x to the other side of the equation

[tex]2x - 3x - 14 = 6 \\ - x - 14 = 6[/tex]

Move -14 to the right side of the equation.

[tex] - x = 14 + 6 \\ - x = 20[/tex]

Multiply both sides by - 1

[tex] - ( - x) = - 20 \\ x = - 20[/tex]

We have the final answer as

x = - 20

Hope this helps you

Answer: add 14 to both sides of the equation

2x-14=3x+6

2x-14+14=3x+6+14

Simplify

add the numbers

2x-14+14=3x+6+14

2x=3x+6+14

add the numbers

2x=3x+6+14

2x=3x+20

subtract 3x from both sides of the equation

2x=3x+20

2x-3x=3x+20-3x

simplify

Combine like terms

2x-3x=3x+20-3x

-x=3x+20-3x

Combine like terms

-x=3x+20-3x

-x=20

Divided both sides of the equation by the same term

-x=20

-x/-1=20-/-1

Simplify

Cancel terms that are in both the numerator and denominator

-x/-1=20/-1

x=20/-1

Divide the numbers

x=20/-1

x=-20

So the answer is x=-20

Hope this helps... Stay safe and have a great day/night!!! :D

The measures of two complementary angles are ( 4x+14 ) ° and ( 2x-2 ) °. Find the value of x.

Answers

Answer:

the answer to needed is four

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