Mathematics High School

Help ASAP

Select all the following that are quadratic equation.
( ) 5x^2+15x=0
( ) 6x-1=4x+7
( )x^2-4x=4x+7
( ) 2x-1=0
( ) 3x^2+5x-7=0
( ) x^3-2x^2+1=0

right answers only please do not waste my time cause 20 points are quite good

Answers

Answer 1
a) d) and f) are quadratic equations.

Related Questions

What is the volume of the figure?

Answers

8 x 5 x 5 = 200cm^3
8 x 8 x 1 = 64 cm^3

200 + 64 = 264cm^3

I really need help for this geometry question, I would appreciate any help thank you.

Answers

you know that you have the Opposite side and the Adjacent side. therefore you would use Tangent (T= O/A)
because you are finding the angle you would go Tan^-1(12÷20) =31°
it is 12÷20 because O/A and the 12 is the opposite side therefore It would be O and 20 is the adjacent side therefore equaling 20 so O/A = 12/20
Your answer is 31°

If ADE and ABC, shown in the figure are similar,what is the value of X?

Answers

Answer is 6 because you have to times both the sides of the given value which are 3 and 2

Given AD = 7x , AB = 3x and the perimeter is 160. Find X.

Answers

Answer:

x = 8

Step-by-step explanation:

The complete question illustrates that the rectangle has sides ABCD and I've represented it as an attachment.

We have that:

AB = 3x

AD = 7x

The perimeter is calculated as:

Perimeter = 2 * (AB + AD)

Substitute values for AB, AD and Perimeter

160 = 2 * (3x + 7x)

160 = 2 * 10x

160 = 20x

Divide both sides by 20

8 = x

x = 8

Please give me the correct answer ​

Answers

Answer:

11

Step-by-step explanation:

Just count it

Answer:

11

Step-by-step explanation:

you have to count the spaces with numbers from right to left

Examine the system of equations.

−3x + y = 4,

−9x + 5y = −1


What is the solution?

(
,
)

Answers

Answer:

Here is the answer.

Step-by-step explanation:

Answer:

(-3.5,-6.5)

Step-by-step explanation:

what is the value of 0.63?

Answers

Answer:

0.25577484738

Step-by-step explanation:

yea for sure

Answer:

The value of 0.63

Step-by-step explanation:

0.25577484738.

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evaluate the expressions. ​

Answers

Answer:

(-6/7)^0=1

-(2)^0=-1

Step-by-step explanation:

hope it helped

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Answer:

Result

Step-by-step explanation:

-8.7

Thats result for this question

Which number is greater than 10?

Answers

Answer:

C.

Step-by-step explanation:

The square root of five is greater than two - the square root of four is two, so it kind of has to be bigger.

Five times two is ten.

Since the square root of five is larger than two, five times the square root of five must be bigger.

Answer:

I used calc to figure it out but its C

What is the value of c in the equation below?

4 2 b
2x 2= a = с

A. -4

B.-2

C. 1
-
64

D. 1
-
4

Answers

Answer:

b

Step-by-step explanation: since i helped can i have brainlist please :D

using the table above determine the missing value using the equation y equals 4x + 9 ​

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the answer is B 37 your welcome

please help me with these.. i am stuck

Answers

Answer:

Both are irrational

12√3 = 20.784

9√6 = 22.045

Hopefully this is what you're looking for :)

Which answer is the solution to 4(2x-3)-3(x-4)+7x=6?

A. 2
B. 0.5
C. 0
D. 18

Answers

Answer:

your answer should be 0.5 or B

The answer is B. 0.5

Ty cut 1/8 of the yard of grass. Carlos cut 3/4 of the yard. How much of the yard did they cut?



Answers

Answer:

7/8 of the yard was cut in total

Explanation:

Simplify 3/4 to 6/8 and add 1/8 to 6/8 to get your answer.

Hope this helps! :)

Order the numbers from least to greatest √9/4 , 2.5, 5/3, √5

Answers

5/3, 5, 2.5, 9 4
I don’t know how to get the square root symbol

9/4 <5/3 <5<2.5

from least to greatest

Which expression shows the result of applying the distributive property to 12(5y+4)?

A. 60y + 4

B. 17y + 16

C. 60y + 48

D. 5y + 48

Answers

Answer:

Step-by-step explanation:

Hello again

Step 1

12(5y+4)  Equation/Question

Step 2

12(5y+4)  Simplify

12(5y)+12(4)

Step 3

12(5y)+12(4)  Solve

answer

60y+48

Hope this helps

What is the volume of this cylinder? *

Answers

Answer   V≈351.86

Step-by-step explanation: V=πr2h=π·42·7≈351.85838

The formula for the volume of a cylinder is V=Bh  or  V=πr2h .

The radius of the cylinder is 4 cm and the height is 7 cm.

Substitute 4 for r and 7 for h in the formula V=πr2h .

V= pie (4)² (7)

v= pie ( 14) (49)

Write an algebraic expression for the phrase “the product of seven and p”.

Answers

Answer:

7*p

Step-by-step explanation:

The product of two numbers is just the two numbers multiplied.

2sin^2x= sin^2x+sinxcosx/cotx

Answers

cot(x) = cos(x) / sin(x)

so

cos(x) / cot(x) = 1 / (1/sin(x)) = sin(x)

Then

sin²(x) + sin(x) cos(x) / cot(x) = sin²(x) + sin²(x) = 2 sin²(x)

PLEASE ANSWER BEST WILL GET FOLLOW THANKS AND 5 STARS AND MAYBE BRAINLEST

Answers

Answer:

10lbs because you would multiply 4.5 by 2.205 which would be 9.9208 which would round to ten

Step-by-step explanation:

Please help me ASAP!! Thank you!!

Answers

Answer:

2x+y < 7

Step-by-step explanation:

We  are below the line which means less than ( since the line is dotted)

We need to determine the equation for the line

The y intercept is 7 and the slope is

( 0,7) and (2,3)

m = ( 3-7)/( 2-0) = -4/2 = -2

In slope intercept form ( y=mx+b)

y = -2x+7

Changing this to an inequality

y < -2x+7

Add 2x to each side

2x+y < 7

Whats 45 x 34 + t =?

Answers

Step-by-step explanation:

1530t

multiply the 2 numbers and add t

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what is 3 divided by 7 times 56 minus 45

Answers

Answer:

-21 is correct

Step-by-step explanation:

&$,#;#&#>#*÷

Marco was paid $8 an hour and received $500 at the end of the summer as a bonus. Lupe was $11 an hour,but only received a $300 bonus. How many hours would they need to work in order to get paid at the same at tye end of the summer?

Answers

Answer:

Step-by-step explanation:

First make an equation,

8x+500=11x+300

Then, with pemdas, cancel out 300 and 8x

200=3x

Divide both sides by 3

Answer is 66.6 reapeating or about 67 hours

i need help my question is -2 less than or equal to 3x-2 <10

Answers

A n s w e r:

0 ≤ x < 4

Write an equation in slope-intercept form of the line that passes through the points (2, 4) and (3,6).

Answers

Answer:

[tex]y=2x[/tex]

Step-by-step explanation:

We want to write an equation in slope-intercept form that passes through the points (2, 4) and (3, 6).

So, we will first find the slope. Let (2, 4) be (x₁, y₁) an let (3, 6) be (x₂, y₂).

The slope formula is given by:

[tex]\displaystyle m=\frac{y_2-y_1}{x_2-x_1}[/tex]

So, by substitution, our slope is:

[tex]\displaystyle m=\frac{6-4}{3-2}=\frac{2}{1}=2[/tex]

Now, we can use the point-slope form:

[tex]y-y_1=m(x-x_1)[/tex]

By substitution:

[tex]y-(4)=2(x-(2))[/tex]

Distribute:

[tex]y-4=2x-4[/tex]

Adding 4 to both sides yields:

[tex]y=2x[/tex]

And we have our equation.

In this case, the y-intercept is 0.

Can anyone help me with this. This is the only assignment I need for today

Answers

Answer:

100 - 10 = 90 + 7 = 97%

89/100*97= $86.33

100 + 15 = 115 + 7 = 122%

50/100 X 122= $61

100 + 7

48/100 X 107 = 51.36

51.36 + 10= $61.36

100 + 15 = 115

700/100 X 115 = 805

805 - 700 = $105

Which graph shows a dilation?

Answers

The answer is b because the shape increases it size and does not change the shape

Plz, help me with this question?

Answers

Answer:

f

Step-by-step explanation:

Answer:

F

Step-by-step explanation:

6x= 12 means u would do 12 divided by 6 to get your answer which is 2. x=2

Four typists can type a total of 600 memos in three days. At that rate, how many memos can three typists type in one day?

Answers

150 memos for 3 typists

The number of memos three typists can type in one day is given by the equation A = 150 memos

What is an Equation?

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

Let the number of memos three typists can type in one day be A

Now , the equation will be

The number of typists = 4

The total number of memos by 4 typists = 600 words in 3 days

So , the number of memos by one typist for 3 days = total number of memos by 4 typists / 4

Substituting the values in the equation , we get

The number of memos by one typist for 3 days = 600/4

The number of memos by one typist for 3 days = 150 memos

So ,

The number of memos by one typist for 1 day = number of memos by one typist for 3 days / 3

Substituting the values in the equation , we get

The number of memos by one typist for 1 day = 150/3

The number of memos by one typist for 1 day = 50 memos

So ,

Number of memos three typists can type in one day A = number of memos by one typist for 1 day x 3

Substituting the values in the equation , we get

Number of memos three typists can type in one day A = 50 x 3

Number of memos three typists can type in one day A = 150 memos

Therefore , the value of A is 150 memos

Hence , the number of memos is 150 memos

To learn more about equations click :

https://brainly.com/question/19297665

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