Factorise
x2 + 2x - 3​

Answer:

U= -7

I hope this helps!!

Answer: u=-7

Step-by-step explanation:

-18 = -4 + 2u

Add 4 to -18

-14=2u

Divide by 2

U=-7

Answer:

car a travels 250 miles car a travels 150 miles in 2 hours

Step-by-step explanation:

car a speed is 150 per hour and car b is  about 70 or 60 miles per hour

car a traveled 100 more miles than car b and the graph car b is 150 miles

Answer:

150 and 2

Step-by-step explanation:

Answer:

Step-by-step explanation:

m∠DOB = m∠DOE + m∠BOE

m∠DBO = 90 + x

m∠DOB = m∠AOC                    {Vertically opposite angles}

110 = 90 +x

x = 110 - 90 = 20

Answer:

x=20

Step-by-step explanation:

m∠DOB = m∠DOE + m∠BOE .        parts whole postulate

m∠DBO = 90 + x                               subs

m∠DOB = m∠AOC                    verticle angles

110 = 90 +x .                                 subs

x = 110 - 90 = 20                             alg

Step-by-step explanation:

3x - 2y = 19 ...1

Replace y = x-7 in ...1

3x - 2(x-7) = 19

3x - 2x + 14 = 19

x = 19 - 14

= 5

Replace x = 5 in y = x - 7

y = 5 - 7

= -2

(5,-2)

Answer:

The city's snowfall in the two-month period was above the historical average by 1/8 feet

Step-by-step explanation:

Fractions

The question provides the following information: In January, a city’s snowfall was 5/8 feet below the historical average. Let's assume the snowfall level to be positive if it's above the historical average and negative otherwise.

The data from January gives us a snowfall of -5/8 feet because it was below the average.

We also know in February, the snowfall was 3/4 foot above the historical average. Following our predefined convention, the data from February gives us a snowfall of +3/4 feet.

To know if the city's snowfall during the two-month period was above or below the historical average, we just need to add them, signs included.

If the result is negative, the two-month period showed a snowfall below the historical average.

Let's find the sum of

[tex]\displaystyle -\frac{5}{8}+\frac{3}{4}[/tex]

The LCM of 4 and 8 is 8, thus:

[tex]\displaystyle -\frac{5}{8}+\frac{3}{4}=\frac{-5+2*3}{8}=\frac{1}{8}[/tex]

Since this quantity is positive, we can say the city's snowfall in the two-month period was above the historical average by 1/8 feet.

Answer: B

Step-by-step explanation: The y-intercept is in the right place which is 5 and it is going up left to right because the slope is positive, not negative which is why D is incorrect and B is correct.

Hope this helps! :)

Answer:

  5 cups

Step-by-step explanation:

There are 8 ounces in a cup, so the ratio given is ...

  5/8 cup : 1 gallon

Multiplying this by 8, we have ...

  5 cups : 8 gallons

If you are using 8 gallons of water, you need 5 cups of mix.

im sorry I got the answer wrong and and was trying to delete it my original answer was 40 before zI realized i said ounces

Answer:

Segment Addition Postulate:  2 points A and C, a third point B lies on the line segment AC if and only if the distances between the points satisfy the equation AB + BC = AC.

Step-by-step explanation:

Answer: Segment Addition Postulate: 2 points A and C, a third point B lies on the line segment AC if and only if the distances between the points satisfy the equation AB + BC = AC.

hope this helped you kiddo.

Step-by-step explanation:

Answer:

3*(n + 3) - 2n

(n +3) is the starting point.  and an increase in 3 times is  3*(n + 3) - 2n

Here is a tip, highlight the whole question, copy it, paste it into google, and it will be there on brainly

Answer:

Equation 1

Step-by-step explanation:

It is the only equation to not have a square root. If a square root is present in the equation, it is NOT a linear function.

Hope this helps!

Answer:

$10.75

Step-by-step explanation:

calculator

Answer:

10.75 for deltamath

Answer:

D

Step-by-step explanation:

Polynomials are always closed with addition, subtraction, and multiplication. Division cannot be used to close a polynomial because when you divide two polynomials, its not going to come out as polynomial. All the other operations after completed will create another polynomial.

Best of Luck!

The value of x for the given triangle will be 111°.

A triangle is a 3-sided shape that is occasionally referred to as a triangle. There are three sides and three angles in every triangle, some of which may be the same.

The sum of all three angles inside a triangle will be 180° and the area of a triangle is given as (1/2) × base × height.

There are many types of triangles such that right-angle triangles, equilateral triangles, and much more.

The sum of all angles inside a triangle is 180°

So,

47° + x° + 22° = 180°

x = 180° - 69° = 111°

Hence "The value of x for the given triangle will be 111°".

For more about triangles,

https://brainly.com/question/2773823

#SPJ2

Answer: undefined slope

Answer: Eli

Explanation: Nora will make 40 spring rolls in 50 minutes and Eli will make 40 spring rolls in 48 minutes so Eli is faster.

Answer:

92

Step-by-step explanation:

let's start off by plugging 2 for every a in the equation and 4 for every b.

4a+2b^2-2(a-3b)=?

4(2)+2(4)^2-2(2-3(4))=?

8+8^2-2(2-12)=?

8+64-2(-10)=?

8+64+20=?

?=92

Hello there!:)

is the answer!

Correct for Acellus! I know because I had it and it was correct!

4a+2b²-2(a-3b)

4a+2b^2-2a+6b

4a-2a+2b^2+6b

2a+2b^a+6b

2(2)+2(4)2+6(4)

4+32+24

60

Hope this helps!! :)

Answer:

40

Step-by-step explanation:

Answer:

40

Step-by-step explanation:

Answer:

(ab - 6)(2ab + 5)

Step-by-step explanation:

Assuming you require the expression factorised.

2a²b² - 7ab - 30

Consider the factors of the product of the coefficient of the a²b² term and the constant term which sum to give the coefficient of the ab- term

product = 2 × - 30 = - 60 and sum = - 7

The factors are - 12 and + 5

Use these factors to split the ab- term

= 2a²b² - 12ab + 5ab - 30 ( factor the first/second and third/fourth terms )

= 2ab(ab - 6) + 5(ab - 6) ← factor out (ab - 6) from each term

= (ab - 6)(2ab + 5) ← in factored form

Answer:

- 131/24

Step-by-step explanation:

Answer:

−13.875

Step-by-step explanation:

Answer:

1.68 ounces per pint

Step-by-step explanation:

Answer:

Step-by-step explanation:

a). When graph w(x) is transformed to r(x) = 4 × w(x), graph of w(x) is vertically  stretched by a scale factor of 4.

Table for the corresponding points will be,

x               w(x)                  r(x)

0                0                  0×4 = 0

15              60               60×4 = 240

30             120             120×4 = 480

45             180             180×4 = 720

b). As discussed in part (a), graph of w(x) will be vertically stretched by a scale factor of 4 to produce the graph of r(x).

c). Since, w(x) = 4x

   and r(x) = 4[w(x)]

   r(x) = 4(4x) = 16x

  r(x) = 16x

Answer:

4

Step-by-step explanation:

Step 1:

- 3x + 20 = 8     Equation

Step 2:

- 3x = 8 - 20    Subtract 20 on both sides

Step 3:

- 3x = - 12   Subtract

Step 4:

x = - 12 ÷ - 3    Divide

Answer:

x = 4

Hope This Helps :)

Answer:

x = 4

Step-by-step explanation:

Step 1: Write equation

-3x + 20 = 8

Step 2: Solve for x

Step 3: Check

Plug in x to verify it's a solution.

-3(4) + 20 = 8

-12 + 20 = 8

8 = 8

Answer:

Domain: all real x values, Range: -4_<x_<infinity

Step-by-step explanation:

The Domain is the X values, and the range is the Y values

Answer:

16

(: i did this before i remember it (im a Simp)

Answer:

n onononononononoonnoono

Step-by-step explanation:

Answer:

1024w^15z

Step-by-step explanation:

(4w^3z)^5

4^5 x (w^3z)^5

1024 x (w^3z)^5

1024w^3z(x)5

1024w^15z

Answer:

x=-7

Step-by-step explanation:

Let's solve your equation step-by-step.

−2(3x+9)=24

Step 1: Simplify both sides of the equation.

−2(3x+9)=24

(−2)(3x)+(−2)(9)=24(Distribute)

−6x+−18=24

−6x−18=24

Step 2: Add 18 to both sides.

−6x−18+18=24+18

−6x=42

Step 3: Divide both sides by -6.

−6x /−6

= 42 /−6

x=−7

Answer:

∠BAC and ∠CAD are congruent, and m∠DAB is the sum of m∠BAC and m∠CAD.

Step-by-step explanation:

Answer:

∠BAC and ∠CAD are congruent, and m∠DAB is the sum of m∠BAC and m∠CAD.

Step-by-step explanation:

Exact answer for edmentum