Mathematics High School

please find the m∠DEF

Answers

Answer 1

Answer:

m∠DEF=29

Step-by-step explanation:

4y-7=2y+11

4y=2y+18

2y+18

y=9

2(9)+11= 29

4(9)-7=29

Related Questions

Find the slopes form two points (1, -2) and (3,-4)

Answers

Answer:

y=-x-1

Step-by-step explanation:

if points are (-1,-2) and (3,-4)

Answer:

slope intercept form: y = -1/2x - 5/2 or y = -0.5x - 2.5

A bag contains 6 red marbles , 6 purple marbles, and 6 yellow marbles. What is the probability of randomly selecting a yellow marble from the bag?

Answers

Answer:

1/3

Step-by-step explanation:

each color takes up 1/3 of the bag

Answer:1/3

Step-by-step explanation:6x6x6=18 divided by 6=3

HELP PLEASE. What is true about the domain and range of the function?
O The domain is all real numbers less than or equal to
4, and the range is all real numbers such that -3 sXs
1.
O The domain is all real numbers such that -3 sxs1,
and the range is all real numbers less than or equal to
4.
O The domain is all real numbers, and the range is all
real numbers less than or equal to 4.
O The domain is all real numbers less than or equal to
4, and the range is all real numbers.

Answers

Answer:

Step-by-step explanation:

This equation is y=4-(x+1)^2, there is no restriction upon x and y has a max value of four and approaches negative infinity as x moves away from -1 in either direction. So the domain is all real numbers and the range is all real numbers less than or equal to four.

The domain and range of the quadratic function are:

Domain: Set of all real numbers.Range: y ≤ 4.

How to get the domain and range?

For a function y = f(x), we define the domain as the set of the possible inputs x, and the range is the set of the possible values y.

On the graph, we can see a quadratic function.

For the domain, we usually start assuming that the domain is the set of all real numbers, and then we remove problematic points. Where a problematic point can be a zero on a denominator or something like that.

In the case of a quadratic, there are no problematic points, then the domain is the set of all real numbers.

For the range, we can see that the function has a maximum at y = 4, and then it goes down, so the range is just:

R: y ≤ 4.

If you want to learn more about quadratic functions, you can read:

https://brainly.com/question/1214333

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:

I urgently need help!!!!

Answers

Answer:

Step-by-step explanation:

Hypotenuse-leg is for right triangles, which these aren't.

Seventeen of the monkeys at the zoo like bananas. There are 15 monkeys in all at the zoo. What fraction of the monkeys like bananas. What is th answer?

Answers

Answer:

7/15 of the monkeys like bananas

Hope this helps.

how long will the rock take to hit the ground

Answers

1.3 seconds is the answer

i need help with my math homework can someone help

Answers

Answer:

okay

Step-by-step explanation:

-x+y = 5
x - 5y = -9
Solve by elimination
Y and x

Answers

Answer:

x = -4 and y = 1

Step-by-step explanation:

-x + y = 5

+ x - 5y = -9 <— let’s eliminate x

————————————-

-4y = -4

y = 1

x - 5y = -9 <— substitute for y

x - 5(1) = -9

x - 5 = -9

+5 = +5

x = -4

Will mark brainliest has to be correct.

Answers

Answer:
x=12
Step by step explanation:

Luis and Arnold did their own car wash during the weekends this past Summer. They made a total of $1,200 together. They decided they were going to invest their money. So they invested in stocks for Tesla. The interest they are making is at 12%. How much money would they earn after 7 years?

Answers

Step-by-step explanation:

Amount they will earn=Principal+Interest

Interest=$1200×0.12×7=$1008

Amount=$(1200+1008)=$2208

gallon of gas: $2.15, 15% markup

Answers

The answer would be $2.47

To compute the perimeter of a rectangle, you add the length, l , and width, w , and double this sum.

This means you can find the perimeter of a rectangle by evaluating the expression 2 (1 + w ).
Use this expression to find the perimeter of a rectangle with length 30 and width 75.
210 (A)
135 (B)
180 (C)
107 (D)

Answers

Answer:

210 (A)

Step-by-step explanation:

Use the formula:

P = 2(l + w)

Substitute the values and find P:

P = 2(30 +75) = 2(105) = 210

Correct choice is A

Answer:

given length [l]=30

width[w]=75

perimeter= 2 (l + w )=2(30+75)=210

answer is A.210

11 divided by 3 as a mixed number

Answers

Answer:

3 2/3

Step-by-step explanation:

How much higher is the average cost at a clinic
than the average cost at a shelter?

Answers

Answer: the answer is 50

Step-by-step explanation: I got it right in the quiz

Answer:

Step-by-step explanation:

3. Which figure is a reflection of A over the x-axis? *

Answers

Answer:

triangle E

Step-by-step explanation:

imagine the X-axis as a mirror, the mirror reflects the shape or the body, and you'll see that the same distance you're away from the mirror as your reflection distance

if you want to prove that the triangle E is the reflection of the triangle A, count from the nearest point from the X-axis, you'll count 3 to reach the X-axis ,and the difference will be also 3 from the X-axis to the nearest point to the triangle E

Please help on number 3 I’ll try to give u points

Answers

Answer:

Step-by-step explanation:

(0,3)

It’s c or 0,3 it’s the same thing the y intercept is the number the falls on the y axis when the x value is 0

How many 3/4 are in 3 3/4?
A.16
B.5
C. 3 1/4
D. 7 1/2

Answers

Answer:

Step-by-step explanation:

3/4 x 5 = 15/4 15/4 is 3 3/4

i need help with this question here~

Use the information provided to calculate Dominique’s net pay.

Dominique earns $7.50 an hour and worked 60 hours last month. During the month she received
$122 in tips. She also used her employee food discount and chose to have the cost of her meals deducted from her paycheck.

If Dominique had $41 deducted last month for meals, what was her net pay?

Calculating Your Income
Dominique’s Monthly Pay

Regular Pay
$

+

Tips
$

=

Gross Pay
$

-

Payroll Taxes

$ 80

-

Other Deductions
$

=

Net Pay
$

Answers

Answer:

Net Pay=$451

Step-by-Step-Explanation:

I showed my work below for you to go off of. :) Hope this helps.

6x-y=1 convert the standard form to a slope intercept.

Answers

Answer:

y= 6x-1

Step-by-step explanation:

6x-y=1

-y= -6x+1 (move x over to the right side)

y= 6x-1 (divide both sides by -1)

3х - 30 = у
7y - 6 = 3х

Answers

Answer:

Step-by-step explanation:

This one is simple substitution... at least, substitution is the easiest method. The first equation is 3x – 30 = y and the second is 7y – 6 = 3x

As I look, I see 3 ways to use substitution to solve this:

substitute 7y – 6 for 3xsubstitute 3x – 30 for ysolve 3x – 30 = y for 3x and make it equal to 7y – 6

We're going to only use 1 method for the sake of time. Try the other two on your own. Assuming you don't make any mistakes, they will work.

Method 1:

3x – 30 = y

7y – 6 = 3x — initial system of equations

7y – 6 – 30 = y — substitute 7y – 6 for 3x

7y – 6 – 30 = y — marking like terms, bold for constants, underlined for variables

7y – 36 = y — combining the constants and simplifying

Here, you could diverge into multiple paths: add 36 to both sides, subtract y from both sides, divide by 6 OR subtract 7y from both sides and divide by –6 . For the sake of time, I'm subtracting 7y, though I don't like dealing with negatives.

7y – 7y – 36 = y – 7y — subtract 7y from both sides

–36 = –6y — simplify

–36 ÷ –6 = –6y ÷ –6 — divide by –6 on both sides

y = 6 — simplify

Again, we can diverge here: substitute y into 3x – 30 = y or substitute y into 7y – 6 = 3x

I'm going to choose 3x – 30 = y but it will work either way, should you take the time (if you have it) to chase down every path this problem can take.

3x – 30 = y — initial equation

3x – 30 = 6 — substitute 6 for y

3x – 30 + 30 = 6 + 30 — add 30 to both sides to isolate 3x

3x = 36 — simplify the expression

3x ÷ 3 = 36 ÷ 3 — divide both sides by 3 to isolate x

x = 12 — simplify

So, we have x = 12 and y = 6 . We know they work for 3x – 30 = y but not if they work for 7y – 6 = 3x . Let's substitute those in to see if (12, 6) really is the solution point.

7y – 6 = 3x — original equation

7(6) – 6 ≟ 3(12) — substitute 6 for y and 12 for x

42 – 6 ≟ 36 — simplify by multiplying

36 = 36 ✔ — simplify by combining like terms on left side

Success! It works! We have found our solution!

I hope this helps increase your understanding of the concept. Have a great day!

How do I find x in this problem?

Answers

Answer:

125

Step-by-step explanation:

Since its a hexagon the interior angles equal to 720 degrees.

Because (n-2)180 equals the number of sides. So, (6-2)180 = 720.

Now for x,

120 + 130 + 100 + x + 135 + 110 = 720

595 + x = 720

x = 125

Can y’all help me on this question?

Answers

Answer:

134

Step-by-step explanation:

There's 2 blue arrows where 39 is, and the same arrows where 4x+7 are. This means that they are the same length. So, 4x+7 = 39. Perimeter means you add, so 28+28+39+39 = 134.

Name a plane that contains AC.
plane RCA
plane WRT
plane ACR
plane WCT

Answers

I Think it would be ACR

It would be defi

Step-by-step explanation:

I think it definetly would be acr

A tank that holds up 10 gallons. when its active, a drain empties water from the tank at a constant rate, when Jada first see the tank, it contains 7 gallons of water. three minute later the tank contains five gallons of water.

At what constant/rate is the amount of water changing in the tank?

Answers

Answer:

-2/3 gallon/minute

Step-by-step explanation:

In three minutes the water volume has decreased by 2 gallons (7 less 5 is 2). The unit rate of decrease of the amount of water in the tank is thus:

- 2 gallons

------------------- = -2/3 gallon/minute

3 minutes

Please help, will give brainliest if the equation is added.
A group of friends wants to go to the amusement park. They have no more than $175 to spend on parking and admission. Parking is $12.50, and tickets cost $16.25 per person, including tax. Write and solve an inequality which can be used to determine xx, the number of people who can go to the amusement park.

Answers

Answer:

10 people can go to the amusement park

Step-by-step explanation:

$175-$12.50 = $162.50

$162.50 divided by $16.25= 10

A circle has a radius of 4 in. What is the circumference of the circle? it is not 25.13 inches.

Answers

Answer:

Radius: 1.128 Area: 4

Hope this helps :)

Choose the amounts of sales that would give Shonda's business positive balance choose all that apply

Answers

Answer:

pwpqldkd

Step-by-step explanation:

oeiekekekkekejeje

Solve using the order of operations. (9+9+72)-4+9

PLZ ANSWER PLZ HURRY

Answers

Answer:

Step-by-step explanation:

The order of operations is PEMDAS

Equations in PARENTHESES come first

Numbers with EXPONENTS come second

MULTIPLICATION/DIVISION problems come next (depending on which comes first in the equation

ADDITION/SUBTRACTION comes last (again, depending on which comes first in the equation)

So we do (9+9+72) first

So that equals 90

And then we subtract 4 from 90

90 - 4 = 86

Then we add 9 to 86

86 + 9 = 95

Answer: 72 is the answer

Order the following from LEAST to GREATEST: -0.9, -4/5, -1/4, -1/2, -7/10

Answers

-0.9, -4/5, -7/10, -1/2, -1/4

Answer:

The answer is -0.9, -4/5, -7/10, -1/2, -1/4.

Step-by-step explanation:

-4/5 = -0.80

-7/10 = -0.7

-1/2 = -0.5

-1/4 = -0.25

Other Questions

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