Mathematics High School

Provide an exact evaluation of the expression:

Answers

Answer 1

-1/2 is the answer hope it's correct

Answer 2

if it is in degrees then it should be -1/2 if I’m not wrong. if it is radians the answer will be different

Related Questions

Write the equation of the
parabola that has x-intercepts of
(1,0) and (5,0) in standard form.

Answers

Answer:

y = x² - 6x +5

Step-by-step explanation:

(x -1)(x-5) = y

x² - 5x - x + 5 = y

x² - 6x +5 = y

In the right triangle ABC, CD is an altitude, and c=e+f,by combining three equations it can be shown that a^2+b^2=c^2.One of the equations is c=e+f.which of the following could be the other two equations

Answers

Answer:

Please provide a diagram as the question is confusing.

explain why 1/6 + 1/3= 1/2

Answers

Answer:

1/6+2/6=3/6

1/2

Step-by-step explanation:

Answer:

1/6+ 1/3= 1/2

Step-by-step explanation:

first find the LCM of the denominator

LCM of 6&3 = 6

1+2/6 = 3/6

reduce to the lowest fraction

3/6 = 1/2

pls help. ❤️ math!! pls

Answers

Answer:

i could be wrong but i think it is between July and September.

Step-by-step explanation:

because it went from 82 to 70 to 60 dollars while in May to August went from 82 to 66 to 82 to 70 so it increased back while answer A did not

find the slope of the line that goes through the given points

1. (0,7) (0,-8)
2. (-7,9) (-18,9)
3. (-5,9)(7,3)
4. (-7,8)(8,-3)

find the slope of the line from the given equation
1. y=-3x-4
2. y=2x+1
3. y= 3/2x
4. y= 5/9x+10
PLEASEEE HELP ILL MARK BRAINLIST

Answers

Answer:

1st=2. (-7,9) (-18,9)

2nd=4. y= 5/9x+10

1. (0,7) (0,-8)
points belong to a vertical line. There is no slope.

2. (-7,9) (-18,9)

points belong to a constant, linear function.
Slope= 0
3. (-5,9)(7,3)

m = -6 / 12 = -1 / 2 = Slope -0.5

4. (-7,8)(8,-3)

m = -11 / 15 = Slope -0.73333

what is the graph of y = x2 + 8x + 4?

Answers

answer here’s the graph

Please HELP ITS URGENT

Answers

Answer:

well that it good sir is a rectangle with a square on it

(7,−8) and (x,-5) with a slope of -3/4
I have to find the value of X

Answers

Answer:

we have

slope=(-5--8)/(x-7)

-3/4=3/(x-7)

-3(x-7)=3×4

-3x+21=12

21-12=3x

3x=9

x=9/3=3

Answer:

x = 3

Step-by-step explanation:

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

Using the your two points the slope = m = [tex]\frac{-8 + 5}{7-x} = \frac{-3}{4}[/tex]

[tex]\frac{-3}{7-x} =\frac{-3}{4}[/tex]

Since the numerators are equal, then the denominators must be equal.

So, 7 - x = 4

-x = -3

x = 3

Convert a salary of 36000 per year to earnings per week. Please help preferably fast since I'm doing a test

Answers

36000/52
692.31
Hope this helps

Find the equation of the line use exact numbers
Y= ?x + ?
Fill in the ? Please I need help ASAP

Answers

Answer:

y=-2x+5

Step-by-step explanation:

y=mx+b
m=-2 (slope)
b= 5 (y-int)
y=-2x+5

10-x=-2x what is it ???

Answers

Answer:

x = - 10

Step-by-step explanation:

Given

10 - x = - 2x ( add 2x to both sides )

10 + x = 0 ( subtract 10 from both sides )

x = - 10

The maximum size of a text message is 160 characters.
A space counts as one character.

a. Write an equation in two variables that represents the
remaining (unused) characters in a text message as you type.

b. Identify the independent and dependent variables.

c. How many characters remain in the message shown?

Sorry its so long, made it a bunch of points

Answers

Answer:

Step-by-step explanation:

Answer:I have same problem

Step-by-step explanation:

Use the diagram to the right to solve for y.
A y = 13
B
y = 15
C. y = 7.5
D
y = 20

Answers

Answer: D y=20

Step-by-step explanation: I minus 115 and 120 and and multiplied 4x and i got y=20. I hope this helps

Help me please
Find the product. Simplify your answer.
2(-3a² + a)

Answers

answer: -6a square +2a

Step-by-step explanation:

2(-3a² + a)

=-6a square +2a

Beth has $105 in her bank account. She buys x shirts for $5.75 each. Write and solve an equation Beth can use to find how many shirts she can buy with the money in her account.

Answers

Answer:

The equation for that would be 5.75x=105 and if you wanted the value for x it is 18.26(18 shirts)

Step-by-step explanation:

SInce she can't buy any decimal or fraction of a shirt then it would be 18 shirts.

What is the length of segment AB?

Answers

12!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

The answers..............................plz and thx

Answers

Answer:x=6

Step-by-step explanation:

Hi! Can someone help me?
3-x divide by 3/5; x=1/4

Answers

Hope this helps have a nice day

please hgelp me my mom

Answers

Answer:

Step-by-step explanation:

A 17-foot ladder is placed against a vertical wall of a building, with the bottom of the ladder standing on level ground feet from the base of the building. How high up the wall does the ladder reach?

Answers

Answer:

15 feet..

taking base as 8m

Given: ladder = 17 m and base = 8 m

The ladder forms a right triangle with the base of 8 m, the wall will be 15 m and the ladder (hypotenuse) is 17 m.

Let’s say you did not know that this was a standard 8–15–17 right triangle.

This is how you can figure it out:

hypotenuse(h)22 = side2112 + side2222

Let side11 = base and side22 = wall

1722 = 822 + wall22

wall = 172−82−−−−−−−√172−82

wall = 289−64−−−−−−−√289−64

wall = 225−−−√225

wall = 15 feet

Height of wall is 15 feet

Given:

Length of ladder = 17 feet

Base distance from ladder = 8 feet (Missing information)

Find:

Height of wall

Computation:

Length of ladder = hypotenuse

Base distance from ladder = Base

Height of wall = Perpendicular

Using Pythagorean theorem

[tex]Perpendicular = \sqrt{Hypotenuse^2 - Base^2}[/tex]

By putting values

[tex]Perpendicular = \sqrt{17^2 - 8^2}[/tex]

[tex]Perpendicular = \sqrt{289 - 64} \\\\Perpendicular = \sqrt{225} \\\\Perpendicular = 15[/tex]

Height of wall = 15 feet

Learn more:

https://brainly.com/question/18163189?referrer=searchResults

One hundred forty-four of the 180 seventh-grade students attended the school dance last Saturday night. What percentage of seventh-grade students did NOT attend the dance?

Answers

Answer:

20%

Step-by-step explanation:

Because 144 OUT OF the 180 seventh grade students attended, this would represent 144/180.

But since we are trying to solve how many did NOT attend the dance, you must subtract 144 from 180 which equals 36. So 36/180 did not attend the dance.

But to make it a percentage, you divide 36/180. Fraction and percentage are like buddies! That's why it is very simple to make a fraction into a percentage.

36/180 can be simplified to 1/5, which as a decimal, is 0.20.

0.20 is same as 20%, so this should be the students that did not attend the dance.

I hope this helps. If this is wrong, I truly apologize...

Answer:20

Step-by-step explanation:

Help? 11 3/4 is the quotient of a number y and 6 1/4

Answers

Answer:

y divided by 6 1/4 = 11 3/4

Step-by-step explanation:

First, change the mixed numbers into improper fractions:

y divided by 25/4 = 47/4

Next, multiply both sides by 25/4:

y divided by 25/4 x 25/4 = 47/4 x 25/4

The 25/4's on the left side of the equation cancel each other out, leaving you with:

y = 47/4 x 25/4

Multiply 47 x 25 and keep the same denominator:

y = 1,175/4

Divide and:

y = 293 3/4

A scientist has two solutions, which she has labeled Solution A and Solution B. Each contains salt. She knows that Solution A is 55% salt and Solution B is 80%
salt. She wants to obtain 30 ounces of a mixture that is 65% salt. How many ounces of each solution should she use?

Answers

Solution B is the one she should use

The poster that lists the classroom rules in Mrs. Akin’s classroom has a length of 2/3 yard and a width of 3/4 yard.

Answers

It is C

3/4* 2/3= 6/12=1/2

I know it was kindda tricky but its a simpile question

Help solve
1/2(X-34)=28+5X

Answers

Answer:

x= -10 and true

Step-by-step explanation:

if you plug -10 in for x you get -22=-22 which makes it true

x=-10

Solve for x by simplifying both sides of the equation, then isolating the variable.

i need answers quick!!!
2x+2y
-6b-15
10c-25

Answers

i'm assuming that u want me to factorise them:

2(x+y)

-3(2b+5)

5(2c-5)

hope this helps :)

(2x + 3) + (x + 1)
help

Answers

3x+4 combine like terms I think lol

Which is a better deal: 4 pounds of apples for $1 or 9.534
kilograms per dollar?

Answers

I need point sorry I need point sorry I need point sorry

Answer:

9.534 kg per dollar is the better deal

Step-by-step explanation:

when you covert 9.534 kg to lb you'll get 21.019 pounds which is a much better deal than 4, and because 21>4

4x+x=25 what will x equal??

Answers

Answer:

Step-by-step explanation:

4x5=20

20+5=25

Philip needs a board 28 inches long to complete a scout project how long is this in feet and inches

Answers

Answer:

2 ft 4 inches

Step-by-step explanation:

12 inches = 1 ft

28/12=2.4

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