All categories

3 years ago

I seriously need help.

Mathematics

1 answer:

Leni [432]3 years ago

3 0

Let's go:

y = ax + b

{5 = 4a + b

{15 = - 6a + b

{5 = 4a + b

{- 15 = 6a - b

10a = - 10

a = - 1

5 = 4a + b

4.(-1) + b = 5

b - 4 = 5

b = 9

- 1; 9

y = -1x + 9

I hope I helped you.

You might be interested in

The area of a triangle is found by multiplying half of the measure of its base by its height. The area of the following right tr

GarryVolchara [31]

Answer:

$\sf Area\:of\:a\:triangle=\dfrac12 \times base \times height$

Given:

area = 18 cm²
base = 6 cm
height = (h + 1) cm

Substitute the given values into the equation and solve for h:

$\sf \implies 18 = \sf \dfrac12 \times 6 \times (h+1)$

$\sf \implies 18 = \sf \dfrac62 (h+1)$

$\sf \implies 18 =3(h+1)$

expand using distributive property of addition $a(b+c)=ab+ac$ :

$\sf \implies 18=3h+3$

subtract 3 from both sides:

$\sf \implies 3h=15$

divide both sides by 3:

$\sf \implies h=5$

<u>To verify</u>:

Half of the base is 3 cm.

If h=5, then the height of the triangle is 6 cm.

Multiplying 3 by 6 is 18.

This matches the given area, so we can verify that h = 5.

3 0

2 years ago

Read 2 more answers

Will give brainiest algebra 2

mars1129 [50]

The sum of squares of numbers is: 13

Step-by-step explanation:

Let x and y be two numbers

Then,

Difference of the squares of the numbers will be:

$x^2-y^2$

Product will be:

$xy$

Given identity is:

$(x^2+y^2)^2=(x^2-y^2)^2+(2xy)^2$

Given values are:

Difference of the squares of the numbers= $x^2-y^2=5$

Product of numbers = xy = 6

Putting the values in the identity

$(x^2+y^2)^2=(5)^2+[2(6)]^2\\=25+(12)^2\\=25+144\\=169$

As we have to only find x^2+y^2

Taking square root on both sides

$\sqrt{(x^2+y^2)^2}=\sqrt{169}\\x^2+y^2=13$

The sum of squares of numbers is: 13

Keywords: Identities

Learn more about identities at:

#LearnwithBrainly

7 0

3 years ago

What is 10 plus 10 minus 4 and 8 divided by the total?

katrin2010 [14]

Answer:

Step-by-step explanation:

(10+10-4)÷8 is your expression.

10+10=20

20-4=16

16/8=2

6 0

3 years ago

Read 2 more answers

(17,11) (5,0) find the slope show the work

Allushta [10]

0-11/5-17=11/12 is the answer to your question. The work is the equation.

4 0

3 years ago

Find the value of the variable or the measure of the missing part of each kite BD=

nataly862011 [7]

Step-by-step explanation:

ED = EB

2x +3 = 5x -15

3+15=5x -2x

18 = 3x

18 ÷ 3 = x

x = 6

7 0

2 years ago