Mathematics High School

someone be a real one and finish this... plz

Answers

Answer 1

Answer:

y + 21 = - 4(x - 7)

Step-by-step explanation:

The equation of a line in point- slope form is

y - b = m(x - a)

where m is the slope and (a, b) a point on the line

Calculate m using the slope formula

m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]

with (x₁, y₁ ) = (7, - 21) and (x₂, y₂ ) = (- 4, 23)

m = [tex]\frac{23+21}{-4-7}[/tex] = [tex]\frac{44}{-11}[/tex] = - 4

Using m = - 4 and (a, b) = (7, - 21), then

y - (- 21) = - 4(x - 7), that is

y + 21 = - 4(x - 7)

Related Questions

PLEASE HELP!
Evaluate the expression 5(7 − 4)2 ÷ 3 + 11.

Answers

Answer:

Step-by-step explanation:

5(7 − 4)^2 ÷ 3 + 11.

PEMDAS says parentheses first

5(3)^2 ÷ 3 + 11.

Then exponents

5 (9)÷ 3 + 11.

Multiply and divide from left to right

45 ÷ 3 + 11

15 +11

35-20x2divide3+11
15x2
30divide3=10
10+11=21

What are the exact solutions of x2 − 3x − 1 = 0 using x equals negative b plus or minus the square root of the quantity b squared minus 4 times a times c all over 2 times a?

Answers

Answer:

The solution of the equation is 3.3 and (-0.3).

Step-by-step explanation:

We need to find the exact solution of the given quadratic equation [tex]x^2-3x-1=0[/tex].

If the quadratic equation is in the form of [tex]ax^2+bx+c=0[/tex], then the solution of this equation is given by :

[tex]x=\dfrac{-b\pm \sqrt{b^2-4ac} }{2a}[/tex]

On comparing the given equation with this above, it means, a = 1, b = -3 and c = -1.

So,

[tex]x=\dfrac{-(-3)\pm \sqrt{(-3)^2-4\times 1\times (-1)} }{2\times 1}\\\\x=\dfrac{-(-3)+\sqrt{(-3)^{2}-4\times1\times(-1)}}{2\times1}, \dfrac{-(-3)-\sqrt{(-3)^{2}-4\times1\times(-1)}}{2\times1}\\\\x=3.3, -0.30[/tex]

So, the solution of the equation is 3.3 and (-0.3).

Answer:

-3

-1

Step-by-step

got it 100% correct

Please help me I really need your help please help me

Answers

Answer:

Step-by-step explanation:

Q8) Diameter = 14 in

r = 14/2 = 7 in

Area of missing chunk = πr²/4

= (3.14 * 7 * 7)/4

=1/4(3.14*7*7)

option 4

Q9) 90 degrees

Q10) Each minute = 6°

In the figure shown, it is 15 minutes

= 15* 6 = 90 degrees

please help will give brainliest

Answers

Answer:

PLEASE GIVE BRAINLIEST IT IS 118

Step-by-step explanation:

(18x+28)+(7x+27) equals 180 degrees

25x+55= 180

25x=125

x=5

THIS MEANS THAT ANGLE ABC IS

18(5)+28.

90+28.

118 degrees. And since angle abc is equal to efg that is your answer.

Answer:

efg=abc

Step-by-step explanation:

18x+29+7x+27=180

25x+56=180

25x=124

x=124/25

18(124/25)+29= 118.28 or rounded 118

I want brainliest!!!

Emily is getting ready for her first year at college and needs to buy some supplies. She has $500. Emily heads to the mall with plans to purchase the things she knows she will need for the upcoming year away from home. She has a shopping list with all of the items budgeted. As she passes through a department store, she notices a pair of jeans and instantly falls in love with them. She tries them on and says to herself, "I need these jeans!" She looks at the price tag and finds that they cost $140.

What questions should Emily ask herself before deciding to buy the jeans? Check all that apply.

Can I afford them?
Should I borrow $140 to buy them?
Can I wait for school supplies?
Is there a good alternative?
Do I need them?

Answers

1,4,5 I just did this question

The questions that Emily should ask herself before deciding to buy are:

Can I afford them?Is there a good alternative?Do I need them?

What do you imply by buying?

The term buying is a term that connote the act of a person in acquiring a possession or ownership of a goods or services.

Note that in buying of anything, it is good to ask yourself the right questions if one really need that thing or not. If Emily can ask the questions above and also answer them, she will be able to make the right decision.

Learn more about buying from

https://brainly.com/question/25689052

#SPJ2

factorise :x^2y^2-16

Answers

Answer:

(xy - 4)(xy + 4).

Step-by-step explanation:

The is the difference of 2 squares.

a^2 - b^2 = (a - b)(a + b: so we have:

x^2y^2 - 16 = (xy - 4)(xy + 4)

If the sides of a triangle are in the ratio 5 is to 4 is to 3 and its area is 54 CM square find perimeter

Answers

Answer:

Perimeter = 36 cm

Step-by-step explanation:

Ratio of sides = 5:4:3

Sides are:

a = 5x ; b= 4x ; c = 3x

Semi perimeter S = (a + b+ c )/2 = (5x + 4x +3x)/2 = 12x /2 = 6x

S - a = 6x - 5x = x

S - b = 6x - 4x = 2x

S - c = 6x - 3x = 3x

[tex]Area=\sqrt{S*(S-a)*(S-b)*(S-c)}\\\\\sqrt{6x*x*2x*3x}=54\\\\\sqrt{36x^{4}}=54\\\\6x^{2}=54\\\\x^{2}=\frac{54}{6}\\\\x^{2}=9\\\\x=\sqrt{9}\\\\ x=3\\[/tex]

sides of triangle:

a = 5x = 5*3 = 15 cm

b = 4x = 4*3 = 12 cm

c = 3x = 3*3 = 9 cm

Perimeter = 15 + 12 + 9 = 36 cm

Whats the answer plz??

Answers

Answer:

Step-by-step explanation:

Absolute Value is the distance from 0, so when you have -|22| that means its the absolute value of 22 then add the negative sign so that means it's further from 0 than |-22|.

I hope this will help.

To divide two powers with the same base, (fill the blank)
the exponents.

Answers

To divide two powers with the same base, you subtract the exponents from each other’s

HELP ASAP PLS HELP PLSSSS

Answers

Answer 12.69

Step-by-step explanation:

Answer:

12.65 units

Step-by-step explanation:

Work out the value of 58×5-2
54

Answers

Answer:

Step-by-step explanation:

58 times 5 is 290. 290-254 is 36

Simplify the expression:
6 + 2(7x + 3),

Answers

Answer:

14x+12

Step-by-step explanation:

6 + 2(7x + 3)

= 6+14x+6

= 14x+12

if 40 m of cloth is sold at taka 1500.there is a profit of 11 percent.what is the cost price

Answers

Answer:

Step-by-step explanation:

I’m not sure how to do the problem but I found a problem like it and an explanation on how to do it hope this helps

A and B are vertical angles. If m A = (4x + 14) and m B = (5x – 5)º,
then find the measure of A

Answers

Vertical angles are equal/congruent

4x+14=5x-5

X=19

4(19)+14= 90

Angle A= 90

The Ipad that Ms. Hopham would like to buy for research is $1,299. This week it is on sale for $990, and the sales tax is 6%. How much will she have to pay in total?

Answers

Turn the percentage into a decimal.

6% = 0.06

Multiply.

990 * 0.06 = $54.9 (sales tax)

Add.

990 + 54.9 = $1,049.40 (total price)

Best of Luck!

A savings account balance is compounded continuously.If the interest rate is 3.1% per year and the current balance is 1077.00 in how many years will the balance reach 1486.73?

Answers

Answer:13.8 is the best answer i could get

Step-by-step explanation:1,077 multiply that × 13.8 =14,862

PLEASE HELP ASAP!!!! I’ll make you brainliest!!!
I need help with number 7!

Answers

Answer:

3/6

Step-by-step explanation:

7/14

Divide the top and bottom by 7

1/2

We are looking for something that equals 1/2

3/6

Divide the top and bottom by 3

1/2

Answer:

D: 3/6

Step-by-step explanation:

If you simplify 7/14 it becomes 1/2

and if you look at the choices 3/6 is the only number that is equal to 1/2

A monument in the shape of a right triangle sits on a rectangular pedestarl that is 7 meters high by 16 meters long. The longest side of the triangular monument measure 65 meters. How high off the ground is the top of the monument

Answers

Answer: 70 meters

Step-by-step explanation:

Hi, since the situation forms a right triangle and a rectangle, we have to apply the Pythagorean Theorem (for the triangle)

c^2 = a^2 + b^2

Where c is the hypotenuse of the triangle (the longest side) and a and b are the other sides.

Replacing with the values given:

65^2 = 16^2 + x^2

4,225 = 256 + x^2

4,225-256 = x^2

3,969=x^2

√3,969 =x

63=x

We have calculated the missing side of the triangle, now we have to add the height of the rectangle:

63 +7 =70 meters

Feel free to ask for more if needed or if you did not understand something.

the graphs of f(x)=-2x and g(x)=(1/2)^x are shown. what are the solutions to thr equation -2x=(1/2)^x? select each correct answer.
-2
-1
2
4

Answers

Answer:

-2

Step-by-step explanation:

hello :

f(x)=-2x and g(x)=(1/2)^x

f(-2)=-2(-2) =4

g(-2)=(1/2)^-2 = 1/2^-2 = 2²=4

If there are 3 classrooms that each have 25 desks and there are a total of 87 students, how many more desks need to be added to a 4th classroom, that was originally empty, so that each of the students has a desk to sit in?

Answers

Answer:

Step-by-step explanation:

25 * 3 = 75

87 - 75 = 12

8 people are about to board a plane. In how many ways can this be done?

Answers

Answer:

64 ways

Step-by-step explanation:

Answer:

Step-by-step explanation:

If you visualize that 1 person can line up in 8 different ways, by being first in line, second, third, etc. there are 8 possible ways 1 person can line up, so multiply that by the # of people which is 8.

FP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

fav singer??

I like XXXTentacion and Trippie Redd

Answers

Answer:

Samee

Step-by-step explanation:

Answer:

TIAGZ

and Billie Eilish

DABABY

Step-by-step explanation:

I need help pls answer as fast as posible

Answers

Answer:

1/8

Step-by-step explanation:

Answer:

1/7

Step-by-step explanation:

divide 6/42

What is the slope of the line

Answers

the slope of the line above is -2

Seven less than the product of 6 and a number is equal to 3 Translate the sentence into an equation.

Answers

Answer:

Step-by-step explanation:

I don't say you have to mark my ans as brainliest but don't forget to thank me if it has really helped you...

The sentence into an equation is 6x-7= 3

Let x represent the unknown number

The number is multiplied by 6

= (6 × x )

= 6x

seven is subtracted from the product

= 6x - 7

The product is equated to 3

= 6x-7= 3

hence the equation is 6x-7= 3

Please see the link below for more information

https://brainly.com/question/2272420?referrer=searchResults

find the value of c that creates a perfect square trinomial

Answers

Answer:

C equals 64

Step-by-step explanation:

To find the missing value you have to take B divide it by two and then square it. So 16/2 ----> 8 -----> 8 squared =64. Hope this helped

Algebraically solve the systems of equations by using f(x)=g(x).
f(x)=x^2-6x+10
g(x)=x^2-2

Answers

Answer:

x=2

Step-by-step explanation:

1 3 4 21
+ = + =
7 4

Answers

Answer:

i tried so i hope this helps you

Someone please help me

Answers

C, D, and E are most likely to be right. Its either all of them, one of them, or two of them. A is impossible to use in the equation and if you use b, you get 45.5.

X+2y>10

1.(1,3)
2.(2,0)
3.(1,1)
4.(5,3)

Answers

Answer:

very easy just compensate using the first number for x and the other for y

let's try 5 for x and 3 for y

5+2*3=11>10 so it's the answer

4.(5,3)

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