I NEED HELP please help

I NEED HELP Please Help

Answers

Answer 1

Answer:

1. 2/5, 2. -1. 3. 5/2, 4. 1, 5. 1/5, 6. -4/3, 7. 1/3, 8. -1/10

Step-by-step explanation:

1-3: the formula for slope is (y2 - y1)/(x2 - x1) for points (x1, y1) and (x2, y2)

1. we have points (-2, -1) and (3,1) ,plug these into the formula to get (1-(-1))/(3-(-2)) = (1+1)/(3+2) = 2/5 so the slope is 2/5

2. we have points (-3, 2) and (2, -3): (-3-2)/(2-(-3)) = -5/5 = -1

3. (-1, -2) (1,3): (3-(-2))/(1-(-1)) = 5/2

4-6: you can use the same formula

4: (1,0) (3,2): (2-0)/(3-1) = 2/2 = 1

5. (8,0) ( 13, 1) (1-0)/(13-8) = 1/5

6. (2, -1) ( 5, -5) (-5+1)/(5-2) = -4/3

7-8: slope= rise/run

7. rise=8, run=24, 8/24=1/3

8. rise=-100, run=1000, slope= -100/1000 = -1/10


Related Questions

The sum of two consecutive even integers is 122. What are the two numbers?

Answers

Answer:

Let the first number = xTherefore, the other number = x + 2 (x+2 is so as in two consecutive even numbers there is 1 odd number) Now, According to questionx + x + 2 = 1222x + 2 = 1222x = 122-22x = 120x = 120/2x = 60Now, first no. = x = 60Therefore, second no. = x + 2 = 60 + 2 = 62Equation 60 + 62 = 122

Step-by-step explanation:

If you like my answer than please mark me brainliest

Answer:

The numbers are : 60 , 62

Step-by-step explanation:

Let the two consecutive even numbers be 2x , 2x + 2

2x + 2x + 2 = 122

Combine like terms

4x + 2 = 122

Subtract 2 from both sides

4x = 122 - 2

4x = 120

x = 120/4

x = 30

2x = 2*30 = 60

2x + 2 = 2*30 + 2 = 60 + 2 = 62

It is normal for some newborn babies to lose weight in their first week of life. Baby Todd's birth weight was 10 pounds. One week after being born, he is 10% lighter. What is Todd's current weight? pounds​

Answers

Answer:

9 pounds

Step-by-step explanation:

you can use cross multiplication to find 10percent of 10 pounds, then subtract this from 10 pounds

dose anyone know the answers?

Answers

Answer:

Number 1 is 3.5, Number 2 is 4.29(because their are 30 days in april), Number 3 is 11, Number 4 is 90.5 miles per hour(MPH) i think

Step-by-step explanation:

Which one is not a function? And why not ?

Answers

Answer:

the selected answer/2

Step-by-step explanation:

not a function because the same y has 2 different x values

Can somebody help me with this. Thank you.

Answers

Answer:

There wasn’t any question posted

Step-by-step explanation:

The question was not posted, therefore there is no logical way to help you with the question.

Nicole is running for school president. Her best friend designed her campaign poster, which measured 3 feet by 2 feet. Nicole liked her poster so much, she reproduced the artwork on rectangular buttons that measured 2 inches by 1 1/3 inches. What is the scale factor?

Answers

Answer:

1 feet = 12 inches3 feet = 36 inchesLarger of buttons dimension is 2 inches

Step-by-step explanation:

the scale factor would be 1/18

6973x63 pls explain how u did it!

Answers

Answer:

4,39299

Step-by-step explanation:

I multiplied 3 x all the numbers in 6,973, then 6 x all the numbers (I added a 0 before I multiplied, then added both the products and got my answer.

What is 0.375 as a whole percent?

Answers

Answer:

0.375 is 37.5 % of 1

Step-by-step explanation:

At the local deli, David bought two ginger ales and two bagels for $6.60. Sumaiya bought four ginger ales and three bagels for $11.70.

Find the exact cost of one bagel and one ginger ale.


PLS HELP

Answers

Step-by-step explanation:

let the ginger ales be $x and the bagels $y.

Case 1, 2x+2y=6.60 x+y=3.30 ......1

Case 2, 4x+3y=11.70. .....2

1, x+y=3.30...×4

2, 4x+3y=11.70...×1

1, 4x+4y=13.20

2, 4x+3y=11.70

(-) (-) (-)

____________

y=1.50

____________

now, placing the value of y in equation 1,

x+y=3.30

x+1.50=3.30

x=1.80

therefore, the exact cost of one bagel and one ginger ale is $1.50 and $1.80 respectively.

hope this helps you.

Which of the following equations represents a quadratic relation?

Question 1 options:

2x+y=3


y=2x2+1


y=3x+1


y=2x3

Answers

Answer:

y=2x^2+1

Step-by-step explanation:

a quadratic equation has a x^2 term

Madelyn and her friend Beth are each baking apple pies and tarts for a bake sale, using the same recipes. Madelyn baked 1 apple pie and 3 apple tarts, using a total of 19 apples. Beth made 10 apple pies and 10 apple tarts, which used 110 apples. How many apples does each dessert require?

An apple pie uses ____ apples and an apple tart requires____apples.

Answers

Answer:

An apple pie uses 7 apples and an apple tart requires 4 apples

Step-by-step explanation:

Apple pie - p, apple tart - t

Set the system as follows:

p + 3t = 1910p + 10t  = 110

Solve by substitution, p = 19 - 3t:

10(19 - 3t) + 10t = 110190 - 30t + 10t = 11020t = 190 - 11020t = 80t = 4

Find the value of p:

p = 19 - 3*4 = 19 - 12 = 7

Apple pie be xApple tart be y

The equations are

x+3y=19--(1)10x+10y=110=>x+y=11---(2)

Subtracting both equations

[tex]\\ \sf\longmapsto 2y=8[/tex]

[tex]\\ \sf\longmapsto y=4[/tex]

Put in equation (2)

[tex]\\ \sf\longmapsto x+4=11[/tex]

[tex]\\ \sf\longmapsto x=7[/tex]

how do i solve -3x--3+8x-24=6x+7-5x

Answers

Answer:

[tex]x=7[/tex]

Step-by-step explanation:

[tex]-3x--3+8x-24=6x+7-5x[/tex]

Two negative signs equate to a positive sign, so we can write [tex]--3[/tex] as just [tex]3[/tex]:

[tex]-3x+3+8x-24=6x+7-5x[/tex]

Add up similar terms:

[tex]5x-21=x+7[/tex]

Add 21 to both sides:

[tex]5x-21+21=x+7+21[/tex]

[tex]5x=x+28[/tex]

Subtract x from both sides:

[tex]5x-x=x+28-x[/tex]

[tex]4x=28[/tex]

Divide both sides by 4:

[tex]\frac{4x}{x} =\frac{28}{4}[/tex]

[tex]x=7[/tex]

HELP PLEASE!!!
Identify a point and two x intercepts to write the x-intercept form equation of each parabola.

Answers

Answer:   y = 2(x-5)(x-7)

x intercepts are 5 and 7

The third point I used was (6,-2); however, you can use any other point you want as long as it's not one of the x intercepts mentioned.

==========================================================

Explanation:

The x intercepts are 5 and 7, where the parabola crosses the x axis. Because of these roots, the two factors are x-5 and x-7.

We can think of the root x = 5 turning into x-5 = 0 after subtracting 5 from both sides. The same goes for x = 7 turning into x-7 = 0.

Put together, the two factors lead to (x-5)(x-7) and we get the equation y = (x-5)(x-7). Plugging either x = 5 or x = 7 into this equation produces y = 0.

-------------------

Notice that plugging in x = 6 leads to...

y = (x-5)(x-7)

y = (6-5)(6-7)

y = (1)(-1)

y = -1

However, the graph shows that x = 6 should lead to y = -2 instead. To fix this, we can stick a 2 out front like so

y = 2(x-5)(x-7)

y = 2(6-5)(6-7)

y = 2(1)(-1)

y = -2

The error has been fixed. As you can see, we need this third point to help nail down the parabolic equation. You can pick any other x value you want as long as it's not 5 or 7.

-------------------

Let's try another x value. Let's say we pick x = 8

y = 2(x-5)(x-7)

y = 2(8-5)(8-7)

y = 2(3)(1)

y = 6

We see that x = 8 leads to y = 6. This matches what the graph shows that (8,6) is a point on the parabola. I'll let you try other x values.

-------------------

In short, we used the roots 5 and 7 to generate the partial factorization (x-5)(x-7). Then we used a third point (6,-2) to help determine the coefficient out front which was 2.

So after using that point, we go from y = (x-5)(x-7) to y = 2(x-5)(x-7) which is the final answer. This is considered x-intercept form because we can quickly read off the x intercepts from this equation.


To make 100g of jam you need 57g of strawberries, 17g of blackberries and the rest should be sugar.
What is the ratio of blackberries to sugar?
Give your answer in its simplest form.

Answers

1. We have to find the mass of sugar in 100g of jam: 100 - (57 + 17) = 26g of sugar

2. Now, we can write the ratio of blackberries to sugar as 17:26. This can’t be simplified

Answer = 17:26
Hope this helps

7. Write an inequality that matches the graph shown.

Answers

Answer:

To make an inequality its in the part that is shaded so

Step-by-step explanation:

(-2,-2) (-4,1) ETC

(0, 6) and (2, 96) in exponential function

Answers

Answer:

If one of the data points has the form \displaystyle \left(0,a\right)(0,a), then a is the initial value. Using a, substitute the second point into the equation \displaystyle f\left(x\right)=a{\left(b\right)}^{x}f(x)=a(b)

​x

​​ , and solve for b.

If neither of the data points have the form \displaystyle \left(0,a\right)(0,a), substitute both points into two equations with the form \displaystyle f\left(x\right)=a{\left(b\right)}^{x}f(x)=a(b)

​x

​​ . Solve the resulting system of two equations in two unknowns to find a and b.

Using the a and b found in the steps above, write the exponential function in the form \displaystyle f\left(x\right)=a{\left(b\right)}^{x}f(x)=a(b)

​x

​​ .

Step-by-step explanation:

I WILL GIVE 30 POINTS TO THOSE WHO ANSWER THIS QUESTION RIGHT

Answers

Answer:

115°

Step-by-step explanation:

From E to B is 180°.

So when looking at angle ACB we get 65°

The angle ACE is equal to 180° - °65 = 115°

To show this is correct we have to add ACE and ACB and that should equal 180° which is true.

Answer:

115°

Step-by-step explanation:

normally straight lines are 180°

so angle ACF is already 90°

to find E, we need to subtract the 90°and the 65°

here it is: 180-(90+ 65)

= 25°

so finally ACE = 90° + 25°

= 115°

;)

PLEASE HELP!
Use a compass and straightedge to complete the following construction Leave all construction marks. Having a sharpened pencil will allow for more precise arcs. Make sure that your construction marks are dark enough to see.

Construct a perpendicular line to the given line through the point on the line.
link to the plot: https://www.mathopenref.com/constperplinepoint.html

Answers

Answer:

draw a line straight down through p

Solve the inequality 2(4x – 3) ≤ 5x – 27

Answers

Answer:

( -7, ∞)

Step-by-step explanation:

2(4x - 3) ≥ 5x - 27

8x - 6 ≥ 5x - 27

3x - 6  ≥ -27

3x ≥ -27 +6

3x ≥ -21

x ≥ -7

All numbers great than -7

ggraph this function

Answers

Answer:

The graph of the equation x^2 - 4x - 5 is linked as a pdf down below.

The local sporting goods store is having a 40% off sale on hockey gear that normally costs $100. You will have to pay a 7% sales tax, based on the discounted price, on any purchase you make. Which statements are true about the problem? Check all that apply.
A.You can simplify the problem by calculating 33% of $100.
B.You should find the discounted price of the gear first.
C.The tax should be calculated on the original $100 price.
D.The discount should be calculated on the original $100 price.

Answers

Answer:

a, d

Step-by-step explanation:

Hope this helps

let me know weather it is right or wrong

Find the cosine of angle U

Answers

Answer:

1st option

Step-by-step explanation:

cosU = [tex]\frac{asjacent}{hypotenuse}[/tex] = [tex]\frac{UV}{UW}[/tex] = [tex]\frac{15}{17}[/tex]

Find the value of x in the triangle shown below.
102
48

Answers

Answer:

The sum of the angles of a triangle is always 180, so the answer is

180-102-48=30

Step-by-step explanation:

Find a point-slope form for the line with slope
and passing through the point (-4,-7).

Answers

Answer:

[tex]\displaystyle y + 7 = \frac{1}{5}(x + 4)[/tex]

General Formulas and Concepts:

Algebra I

Point-Slope Form: y - y₁ = m(x - x₁)

x₁ - x coordinate y₁ - y coordinate m - slope

Step-by-step explanation:

Step 1: Define

Identify variables.

Point (-4, -7)

Slope m =  [tex]\displaystyle \frac{1}{5}[/tex]

Step 2: Find Equation

Substitute in variables [Point-Slope Form]:                                                    [tex]\displaystyle y - -7 = \frac{1}{5}(x - -4)[/tex]Simplify:                                                                                                             [tex]\displaystyle y + 7 = \frac{1}{5}(x + 4)[/tex]

PLZZZ HELP ASAP I NEED IT FAST!​

Answers

Answer:

5.4

Step-by-step explanation:

Step 1: Take any two side lengths from the quadrilaterals (one from ABCD and one from PQRS)

For this case, I'm going to take 4 and 7.2

Step 2: Divide the length you took from PQRS by the length you took from ABCD.

[tex]\frac{7.2}{4}[/tex] [tex]1.8[/tex]  (1.8 is the scale factor (SF))

Step 3: Since CD and RS and corresponding sides, multiply 3 by 1.8

[tex]3 * 1.8[/tex] [tex]5.4[/tex]

Therefore, x = 5.4.

Answer:

5.4

Step-by-step explanation:

Look at photo for explanation

Rick buys 3 CDs and 5 video games. The cost of one video game is $12.00 more than the cost of one CD. If Rick spends $164.00, what is the cost of each CD?

Answers

Step-by-step explanation:

x = price per video game

y = price per CD

164 = 5x + 3y

and then we know

x = y + 12

now we can use this as substitute in the first equation :

164 = 5(y + 12) + 3y = 5y + 60 + 3y = 8y + 60

104 = 8y

y = $13

x = y + 12 = 13 + 12 = $25

so, each CD costs $13.

simplify 6(x+3-2) (4-x)

Answers

The answer is -6^2-6x+120

What is the first time after midnight that all the digits on the display of a digital clock are prime numbers?

Answers

2:22 am
Hope this helps.

There are 495 pages in the mathematic book, from this 330 pages are included for the first term. Find the proportion of total pages to allotted pages in simplest form.

Answers

Answer:

330/495 = 2/3

the answer is 2/3

Answer:

3 : 2

Step-by-step explanation:

Total pages : allotted pages = 495 : 330

Find the HCF of 495 and 330

495 = 5 * 3*3*11

330 = 5 * 3 * 2 * 11      

HCF = 5 * 3 * 11 = 165

Divide 495 and 330 by 165

495 : 330 = 3 : 2                      

Simplyfy (4^7/5^2)^3

Answers

Simplify (4^7/5^2)^3 https://brainly.com/question/13043992
Other Questions
Help please Its about functions solve the following equations A) 2 (A + 5) = 16 b) 4 p - 2/3 = 7/3 c) 3y/2 + 8 = (-4)pls pls pls pls pls pls answer steps PLEASE ILL GIVE BRAINLIEST! The tobacco lobby has always been one of the largest and most powerful in Washington, d.c. Not only does it give money to strategic legislators, but it also has the strong support of those who have tobacco farmers in their districts. In recent years, however, tobacco advocates have been on the defensive. They have lost some important cases in court and have paid out large settlements to some of the states. Why had the tobacco lobby lost some of its power? Are there other industries or issues that are likely to experience a similar demise? Why or why not? Which factor is not a type of spectra?A. emissionB. absorptionC. continuousD. discontinuous Read the following sentence:"You must be joking!" he screamed disbelievingly.Which of the following is the best revision?O A. "You must be joking!" he cried.B. "You must be joking!" he chortled lugubriously.O C. "You must be joking!" he asked.O D. "You must be joking!" he exclaimed frustratedly. What do graphic aids do in informational texts? (1 point)A They present information visually to help readersB They illustrate the reasoning behind a statementC they alternate text and visuals to break up textsD They direct readers to relevant print resources Select all the correct answers.How did the Little Rock Nine change the United States?0 They helped advance the Civil Rights Movement.They helped African Americans desegregate public schools.They won a court case to end segregation in public schools.They changed some Americans' views on segregation.They helped create the Montgomery Bus Boycott. Diamond has a macromolecular structure and iodine is a simple covalent molecule. Use your knowledge of structure and bonding to explain why diamond has a higher melting point than iodine. quien cant el himno nacional en la pelea del canelo Please answer below :) I will mark the brainiest answer "The Good Samaritan" is written in the tense, from a point of view. at the end of Schindler's list what was his attitude towards money? and what made him change? Use the same link to answer the followingquestionWhy Is Biodiversity Important? Who Cares?Name three biological services provided bybiodiversity The second of three numbers is 8 more than the first,and the third number is 3 less than 3 times the first.If the third number is 15 more than the second, findthe three numbers.1st___2nd___3rd___ Which sentence supports the idea that Maya is out in unfavorable conditions? On November 5th, local time, at a music festival concert in Houston, Texas, countless people who didn't buy tickets broke through the VIP entrance, crowded the scene and even suffered a serious stampede.During the squeeze, 8 people were killed, all aged between 14 and 27, and more than 300 were injured. The youngest was only 10 years old... According to the Associated Press, this was the worst stampede and performance in the United States since 2003. Security incident. y = -7x - 21What is the slope of this equation and what is the Y intercept. Answer my question, then you get a brainly and 30 points (urgent teacher is giving us 5mins) Hurry.... Thanks explain why water wasn't used in crackers? Which of the following two combinations are correct?