Mathematics High School

pleasee help me, I don’t get it

Answers

Answer 1

Answer:

x = 4 sqrt(5)

Step-by-step explanation:

Since this is a right triangle, we can use the Pythagorean theorem

a^2 + b^2 = c^2 where a and b are the legs and c is the hypotenuse

8^2 + x^2 = 12^2

64+ x^2 =144

Subtract 64 from each side

x^2 = 144-64

x^2 =80

Take the square root of each side

sqrt(x^2) = sqrt(80)

x = sqrt(16*5)

x = 4 sqrt(5)

Related Questions

What is the value of b?

Answers

answer is b=16

hope that helped loll

Answer:

I got you

Step-by-step explanation:

The answer is 32

HELP PLEASE-
I would really appreciate it

Answers

Answer:

61.25

Step-by-step explanation:

7x 3.5 x 1/2= triangle

12.25 x 4 =49

3.5 x 3.5 = 12.25

12.25+49 = 61.25

What is the radical form of the expression? 2 4/5 Enter your answer in the box.

Answers

Answer:

Step-by-step explanation:

plssss help i just cant figure it out

Answers

It is just two as you are dividing a negative by and negative turns into a positive

If you would like to make $586 in 6 years, how much would you have to deposit in an account that pays simple interest of 3%?
Round all answers to 2 decimal places.

Answers

Answer:

$3255.56

Step-by-step explanation:

First, converting R percent to r a decimal

r = R/100 = 3%/100 = 0.03 per year,

then, solving our equation

P = 586 / ( 0.03 × 6 ) = 3255.5555555556

P = $ 3,255.56

The principal required to

accumulate interest of $ 586.00

on a rate of 3% per year for 6 years is $ 3,255.56.

PLZ HELP ME!!!

Why is it important to understand how variables work, inequalities, and basic awareness of exponents before starting algebra?

Answers

Answer:

It is important because they are the basics of algebra. Almost every algebraic problem you will ever solve is based on these fundamental properties. In equations, we almost never know every part of it so we will need variables to substitute the unknown amount in an equation. Variables are used for basically every equation/problem in algebra. Inequalities are not as important as variables but are still really important. Inequalities are basically comparing numbers. And in algebra when they add variables into an inequality, the inequality will help lower the number of possible values of said variable. And exponents are just a basic operation in algebra. Just like learning addition and subtraction. It is like a quicker and less complicated way of multiplying numbers.

x2-36
10.) Reduce the ratio, x2 +4x-12
|
I

Answers

Step-by-step explanation:

Simplify 15 − 10 x 8 x 3 − 12 x 2 \dfrac{15- 10x}{8x^3-12x^2} 8x3−12x215−10xstart fraction, 15, minus, 10, x, divided by, 8,

What is the product of:
7x4.5x6

Answers

Answer:

189

Step-by-step explanation:

Answer:

189

Step-by-step explanation:

mulitply 7 by 4.5= 31.5

31.5 x6=189

How to expand :

-2(t+1)^2+5

Please provide a step by step explanation!!

Answers

Answer:

Your answer is 21

Hope that this is helpful. Vote and like it

Roberto is cutting 3 loaves of homemade bread into halves to give to his neighbors. How many neighbors can he give ½ loaf of bread?

Answers

Answer:

6 neighbors

Step-by-step explanation:

1 bread can be given to 2 neighbors when cut in half(1/2). This case, you have 3 bread so 3x2=6

Answer:

6 because 1/2 goes into 3 6 times so your answer is 6 neighbors

Step-by-step explanation:

Which set of ordered pairs represents a function?

{
(
−
2
,
4
)
,
(
−
1
,
6
)
,
(
−
6
,
3
)
,
(
−
6
,
4
)
}
{(−2,4),(−1,6),(−6,3),(−6,4)}

{
(
5
,
5
)
,
(
9
,
5
)
,
(
−
8
,
0
)
,
(
−
7
,
8
)
}
{(5,5),(9,5),(−8,0),(−7,8)}

{
(
−
2
,
6
)
,
(
8
,
−
3
)
,
(
−
8
,
4
)
,
(
8
,
−
8
)
}
{(−2,6),(8,−3),(−8,4),(8,−8)}

{
(
−
2
,
−
1
)
,
(
−
1
,
6
)
,
(
2
,
4
)
,
(
−
2
,
−
9
)
}
{(−2,−1),(−1,6),(2,4),(−2,−9)}

Answers

Answer:

the second one

Step-by-step explanation:

in order for it to be a function the x values CANNOT repeat.

in answer a the x value -6 repeats so that cannot be a function

in answer b none of the x values repeat so its probably this one but lets check the other ones just in case

in answer c the x value 8 repeats so it cannot be this one

in answer d the x value -2 repeats so it cant be this one \

b is the only one that does have repeating x values therefore it is the second one

B is the answer hope i helped

12x^2+5z-2=0 solve for x

Answers

Simplifying
x = 0.5
Solution
x = {-0.3333333333, 0.5}

The model is shaded to represent the amount, in liters, of lemonade in a pitcher. If Sarah drinks 0.4 liter of the lemonade, how much will be left?

Answers

Answer:

0.6

Step-by-step explanation:

Which of the following is the value of ||x+5|- 12| when x = -9?

(a) 8
(b) 13
(c) 16
(d) 26

Answers

Answer:

Step-by-step explanation:

(-9)+5= -4 but it's absolute value so 4

4-12= -8 but it's absolute value so 8

Hope this helps! If you don't understand my explanation I can change it.

Answer:

Step-by-step explanation:

Evaluate one-third of the sum of 15 and 6 ( i know its a weird question but help me out please)
1/3 x ( 15 + 6 ) = ___

Answers

answer

Answer:

Step-by-step explanation:

15+6=21

21÷3=7

Answer:

Step-by-step explanation:

First you do the calculation inside the brackets,

15 + 6 = 21

Then you multiply the answer, 21, by 1/3

21 x 1/3 = 7

Have a great day :)

-1 2/3 divided by (-2 1/5)

Answers

Answer:0.75757575757

Answer:

Fraction Form

25/33

Decimal Form

0.75

Step-by-step explanation:

First, convert the mixed fraction into an improper fraction, so it would look like:

-5/3 / (-11/5)

Next, divide. Remember, when multiplying fractions all you do is flip the one in parantheses and make both of them positive, so it would look like:

5/3 x 5/11

Finally, multiply so you do the two top numbers which is 5 x 5= 25 and the two bottom numbers so 11 x 3 is 33. Then your final answer is 25/33

Help me please chile

Answers

Answer:

1 neither

2 supplementary

3 supplementary

Step-by-step explanation:

Bejjjwjwnnaksuehvbsjsusue yes

the figure shown consists of a triangle resting on a square of side 5 cm. the triangle has a height of 4 cm. what is the total area of the figure ?

Answers

Because its a square all its sides are 5cm
So area of square is 5x5=25cm^2
Triangle is 5x4= 20
20/2 is 10cm^2
25+10=35cm^2

What is sin B = 0.5592?

Answers

Answer:

sin(30°) = 0.5

sin(30°) is exactly: 1/2

Note: angle unit is set to degrees.

Step-by-step explanation:

Solve the system of linear equations by elimination. 11x−20y=28 , 3x+4y=36

Answers

X= 8 Y= 3 math papa can help you and show you steps

An equation is a mathematical statement that is made up of two expressions connected by an equal sign.

The value of x is 8.

The value of y is 3.

What is an equation?

An equation is a mathematical statement that is made up of two expressions connected by an equal sign.

Example:

2x + 4 = 7 is an equation.

We have,

11x - 20y = 28 ____(1)

3x + 4y = 36 _____(2)

Now,

Multiply 5 on (2).

11x - 20y = 28

15x + 20y = 180

26x = 208

This means,

x = 208/26

x = 8

Now,

11x - 20y = 28

11 x 8 - 20y = 28

88 - 20y = 28

88 - 28 = 20y

y = 60/20

y = 3

Thus,

The value of x is 8.

The value of y is 3.

Learn more about equations here:

https://brainly.com/question/17194269

#SPJ2

Which triangle is similar to △ABC if sin(A) = One-fourth, cos(A) = StartFraction StartRoot 15 EndRoot Over 4 EndFraction, and tan(A) = StartFraction 1 Over StartRoot 15 EndRoot EndFraction?

Answers

Answer:

ΔXYZ

Step-by-step explanation:

Trigonometric identities are equations which are true for right angled triangles. They are:

sin(A) = opposite / hypotenuse, cos(A) = adjacent / hypotenuse, tan(A) = opposite / adjacent.

Given triangle ABC with ∠A with side BC opposite to the angle, ∠B with side AC opposite to the angle, ∠C with side AB opposite to the angle.

sin(A) = opposite / hypotenuse = BC / AC = 1/4

BC = 1, AC = 4

cos(A) = adjacent / hypotenuse = AB / AC = √15 / 4

AB = √15

tan(A) = opposite / adjacent = BC / AB = 1 / √15

Two triangles are said to be similar if the ratio of their corresponding sides are in the same proportion.

ΔXYZ and ΔABC are similar because the ratio of their corresponding sides are in the same proportion.

For adjacent side; XZ / AB = 6√15 / √15 = 6

For opposite side; YZ / BC = 6/1 = 6

For hypotenuse side; XY / AC = 24 / 4 = 6

Answer:

D. ΔXYZ

Step-by-step explanation:

PLEASE HELP!!

i hate math and i am terrible at it so i need help

Answers

Answer:

b,c,d

Step-by-step explanation:

Answer:

D and B i'm pretty sure

Step-by-step explanation:

i would try a place called calculator soup really helps.

Simplify the following expression.
3(2x+7)

Answers

solution: 6x + 21
3(2x + 7)
3 • 2x • 3 • 7
6x + 3 • 7
6x + 21

3(2x+7) = (3)(2x+7) = (3)(2x)+(3)(7) = 6x+21

Solve for X in the rectangle?

Answers

Answer:

x=6

Step-by-step explanation:

13x+12=90

13x=78

x=6

The value of x in the rectangle is 6.

What is Trigonometry?

Trigonometry is a branch of mathematics that studies relationships between side lengths and angles of triangles.

The given quadrilateral is a rectangle.

In rectangle each angle has 90 degrees.

So equate 13x+12 and 90 degrees to get x

13x+12=90

Subtract 12 from both sides

13x=90-12

13x=78

Divide both sides by 13

x=6

Hence, the value of x in the rectangle is 6.

To learn more on trigonometry click:

https://brainly.com/question/25122835

#SPJ2

Eliza's birthday is on February 29th. If she celebrated her 7th birthday in 2016, how old is she and what year was she born?

Answers

Answer:

She is 11, turning 12. She was born in 2009.

Step-by-step explanation:

-4x + 64 < 242 + 3x
Giving extra points

Answers

Answer:

x>−178/7

Step-by-step explanation:

I'm assuming you wanted to solve for the inequality of x, if so this is the answer.

please help me out i don't want to keep wasting points. no fake answers or i. will report

Points A=(3,5) B = (-2,6) C=(0,16) are vertices of a triangle

1. Find the slope of each segment
2. is the triangle a right triangle explain your answer

Answers

Answer:

hi again

−

Step-by-step explanation:

Cada caja contiene el mismo número de cuadernos. Si Mario transporta 120 cuadernos en total en una carretilla, ¿cuántos cuadernos habrá en 120 cajas iguales?

Answers

Answer:

Se almacena un cuaderno por caja, significando 120 cuadernos en 120 cajas iguales.

Step-by-step explanation:

A partir del enunciado, podemos calcular el número de cuadernos por caja al dividir el total de cuadernos en la carretilla por el número de cajas disponibles.

[tex]x = \frac{120\,cuadernos}{120\,cajas}[/tex]

[tex]x = 1\,\frac{cuadernos}{caja}[/tex]

Se almacena un cuaderno por caja, significando 120 cuadernos en 120 cajas iguales.

Help. 100 more points. 1. Consider the surface area of the following pyramid.

(a) Calculate the total surface area of the pyramid. Show your work.
(b) Calculate the lateral surface area of the pyramid. Show your work.
Answer:

(by the way, a and b are not ANSWERS. if you answer with a or b i will find you and flick your head.)

Answers

Answer:

275 52.2 there you go um im not sure how to help you on the show your work but i hope this helps

Answer: The lateral area of a right pyramid can be calculated by multiplying half of the perimeter of the base by the slant height. This is summarized by the formula: LA 5 Ps. We can relate this formula to the square pyramid below and its net. The side length of the base of the pyramid is b, and the slant height is s.

PLZ HELP ME!!! ILL MARK BRAINLIEST!!!!!
Why is it important to understand how variables work, inequalities, and basic awareness of exponents before starting algebra?

Answers

Answer:

well algebra is basically about variables.

This is because you're assigning an equation or a number to a letter.

Exponents- that I don't really and inequalities

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