Ask question

Ask question

All categories

3 years ago

14

(6,11) and (5,9) are on the line

1 answer:

Alborosie3 years ago

3 0

What's the rest of the question?

You might be interested in

Four balls of wool will make 8 knitted caps. How many balls of wool will Malcom need if he wants to make 6 caps

arsen [322]

8x = 4
x = 1/2

6(1/2) = 3 caps

3 0

3 years ago

Read 2 more answers

Marco is 8 years younger than his brother Paolo. If their product of their ages is 105, how old is Marco? plz help

Nina [5.8K]

Answer:

Marco's age is 7 years old

Step-by-step explanation:

Let

x ----> Marco's age

y ----> Paolo's age

we know that

$x=y-8$ ----> $y=x+8$ ----> equation A

$xy=105$ ----> equation B

substitute equation A in equation B

$x(x+8)=105$

$x^2+8x-105=0$

Solve the quadratic equation

The formula to solve a quadratic equation of the form

$ax^{2} +bx+c=0$

is equal to

$x=\frac{-b(+/-)\sqrt{b^{2}-4ac}} {2a}$

in this problem we have

$x^2+8x-105=0$

so

$a=1\\b=8\\c=-105$

substitute in the formula

$x=\frac{-8(+/-)\sqrt{8^{2}-4(1)(-105)}} {2(1)}$

$x=\frac{-8(+/-)\sqrt{484}} {2}$

$x=\frac{-8(+/-)22} {2}$

$x=\frac{-8(+)22} {2}=7$

$x=\frac{-8(-)22} {2}=-15$

Remember that the solution cannot be a negative number

so

The solution is x=7

therefore

Marco's age is 7 years old

4 0

3 years ago

You earn $8.50 per hour at your summer job right and solve any quality any quality that represents the number of hours you need

irina1246 [14]

He should work for 24 hours.

7 0

3 years ago

Need help on this math pls points and brainlest Math angles

iVinArrow [24]

Answer:

x = 28

m<ABC = 57°

Step-by-step explanation:

✔️(2x + 1)° + 33° = 90° (complementary angles)

Solve for x

2x + 1 + 33 = 90

Add like terms

2x + 34 = 90

2x = 90 - 34 (subtraction property of equality)

2x = 56

Divide both sides by 2

x = 28

✔️m<ABC = 2x + 1

Plug in the value of x

m<ABC = 2(28) + 1

= 56 + 1

m<ABC = 57°

5 0

2 years ago

Read 2 more answers

The percent of decrease from 12 to 9.

MissTica

I’m pretty sure it’s 75%

7 0

3 years ago

Read 2 more answers