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lina2011 [118]
3 years ago
13

Attachment mathswatch!!!!! Please write answer only thank you!!!!!!!!

Mathematics
2 answers:
Crank3 years ago
5 0

Answer:

gradient line A = 2

gradient line B = -1

natali 33 [55]3 years ago
4 0
I think -1,2 or something else I’m not sureee sorry hope it’s gets answered
You might be interested in
How to use the zero product property and factoring solve for X
Marta_Voda [28]
Using the zero product property you can set each expression equal to 0 (or factor for some of them)
All you have to do is set them equal to zero and simplify to solve for x

a. (x+13)=0
x= -13
(x-7)=0
x=7

b. (2x+3)=0
x=-3/2
(3x-7)=0
x=7/3

c. x=0
(x-3)=0
x=3

d. x^{2} -5x=0
 needs to be factored 
factor out an x to get:
x(x-5) and set each equal to 0
x = 0       
(x-5)=0 
x=5

e. x^{2} -2x-35=0
 also needs to be factored
(x-7)(x+5)=0
(x-7)=0       (x+5)=0
x=7   x=-5

f. 3x^{2} +14x-5=0
Also needs to be factored using the ac method:
3 x^{2} +15x-x-5
3 x^{2} (x+5)-1(x+5)
(3x-1)(x+5)=0

(3x-1)=0
x=1/3
(x+5)=0
x=-5

I hope this helps! (if so, give brainliest please!!)

8 0
3 years ago
If the gradient of the line joining the points [4,-9]and [-3,h]is -3, find the value of H
Scrat [10]

Answer:

<h2>h = 12</h2>

Step-by-step explanation:

To find the value of h use the formula for finding the slope of a line

That's

m =  \frac{y2 - y1}{x2 - x1}

Where ( x1, y1) and (x2 ,y2) are the points

From the question

slope = - 3

The points are [4,-9] and [-3,h]

Substitute these values into the equation

We have

- 3 =  \frac{h + 9}{ - 3 - 4}

- 3 =  \frac{h + 9}{ - 7}

Cross multiply

That's

- 3(-7) = h + 9

21 = h + 9

h = 21 - 9

We have the final answer as

<h3>h = 12</h3>

Hope this helps you

3 0
4 years ago
Polygon B is a scaled copy of Polygon A using a scale factor of 5.
serious [3.7K]

Answer:

25 times

Step-by-step explanation:

Since polygon A is enlarged by a scale factor of 5 to get a Polygon B, therefore,

Area of polygon B : Area of polygon A = 5² : 1²

Area of polygon B : Area of polygon A = 25:1

This, this implies that the area of polygon B is 25 times the area of polygon A.

8 0
3 years ago
Choose the expression that represents a cubic expression.
Anna007 [38]

Answer:

10x³ - 6x² - 9x + 12 is a cubic expression ⇒ 2nd

6x + 6 is a linear expression ⇒ 1st

5x² + 9x - 1 is a quadratic expression ⇒ 2nd

Quadratic expression ⇒ 1st

Step-by-step explanation:

* Lets explain the degree of any expression

- The degree of any expression is the greatest power of the variable

- Ex:

# 3x - 3 is a first degree expression

# x² - 3x + 2  is a second degree expression

# 5x³ - 2x² + 5x - 2 is a third degree expression

- The first degree expression is called linear expression

- The second degree expression is called quadratic expression

- The third degree expression is called cubic expression

* Lets solve the problem

∵ The cubic expression is the expression with greatest power of 3

∴ 10x³ - 6x² - 9x + 12 is the cubic expression

∵ The linear expression is the expression with greatest power of 1

∴ 6x + 6 is a linear expression

∵ The quadratic expression is the expression with greatest power of 2

∴ 5x² + 9x - 1 is a quadratic expression

∵ The expression is -2x² + 11

∵ The greatest power of x is 2

∴ -2x² + 11 is a quadratic expression

3 0
3 years ago
Read 2 more answers
If you know this please help
Alex777 [14]

Answer:

divide 3 / 78 = 89 x Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
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