BRAINLIEST GOES TO FIRST CORRECT ANSWER, NO STEPS NEEDED

If the roots of a quadratic equation are 1±√5, then the product of the roots is:

a) -24
b) -4
c) 26

Answers

Answer 1

Answer:

Its option B -4

Step-by-step explanation:


Answer 2

Answer:

b) -4

Step-by-step explanation:

The roots are (1-sqrt5)  and (1+sqrt(5)

FOIL

first:1*1 =1

outer: 1 * sqrt(5) = sqrt(5)

inner -1*sqrt(5) = -sqrt(5)

last sqrt(5) * - sqrt(5) = -5

Add them together: 1+sqrt(5) - sqrt(5) -5  = -4


Related Questions

use the given information to prove that BC=DE

Answers

2. CD = CD , Reflexive Prop.

3. BC = DE, Subtraction Prop.

A salesman earned $420. This is one-tenth of his sales dollars. How much did he same in dollars

Answers

Answer:

The salesman sold $4,200 in goods.

Step-by-step explanation:

You can get this figure by taking the amount he earned and dividing it by his commission fraction.

$420 ÷ 1/10 = $4,200

The union of sets P = {1, 2, 3, 4, 5, 6} Q = {4, 5, 6, 7, 8, 9} is given by which of the following?



{1, 2, 3, 4, 5, 6, 7, 8, 9}

{1, 2, 3, 4, 4, 5, 5, 6, 6, 7, 8, 9}

ø

{4, 5, 6}

Answers

Answer:

The first one, because the x values are not repeated in a data set.

PLZZZZZZZZZZZZZZZZZZZZZ ANSWER IF ANSWERED YOU GET 98 POINTS HURRY!!!!!!!!!!!!!!!!!!

Answers

Answer:

y = 3x + C

y = mx + 5

y = 3x + 5

Step-by-step explanation:

A. The standard form for lines with slope = 3 is

y = 3x + C where C is the y-intercept and can be any number

B. The standard form for lines with y-intercept = 5

y = mx + 5 where m is the slope and can be any number

C. The only line with slope = 3 and y-intercept =5

y = 3x + 5

There is only one line because both m and C are given.


Answer:


Step-by-step explanation:

a is y=3x+c; c is the y-intercept

b is y=mx+5; m is the slope

c is y=3x+5 as it is the only line with both slope = 3 and y-intercept =5


What is the length of GH? ______cm

Answers

Area of a rectangle = Length * Width
Area = 60cm^2
Length = 4
Width = GH = ? = x

60 = 4*x
solve for x
60/4 = x
x = 15

GH is 15cm

Question 11(Multiple Choice Worth 5 points) Perform the requested operation or operations. f(x) = 4x + 6, g(x) = 5x2 Find (f + g)(x).

Answers

Answer:

(f + g)(x) = 5x^2 + 4x + 6

Step-by-step explanation:

The given functions are f(x) = 4x + 6 and g(x) = 5x^2

(f + g)(x) = f(x) + g(x)

= 4x + 6 + 5x^2

= 5x^2 + 4x + 6

Thank you.

FInd the slope of a line

Answers

Answer:

First I'm not exactly sure what you're asking but the equation for slope is:

Y2-Y1/X2-X1=M


Step-by-step explanation:

M is your slope

X1 and Y1 represent your first point

X2 and Y2 represent your second point

To translate you are finding the rate of change (slope) between two points


Answer: Slope = ∆y/∆x = y2-y1/x2-x1

Step-by-step explanation:

The slope of a line which is also known as the gradient can be gotten by taking the ratio of the change in coordinate of y-axis to the x-axis of the line.

Change in y axis = y2-y1

Where y2 and y1 are final length and initial length respectively on the y axis

Change in x axis = x2-x1

Where x2 and x1 are final length and initial length respectively on the x axis.

The slope of the line therefore gives;

Slope = ∆y/∆x = y2-y1/x2-x1

What is the value of Y who knows please help me

Answers

Answer:

y =65

Step-by-step explanation:

We will call the unknown angle in the triangle x

Angle x plus 130 form a straight line

x+130 = 180

Subtract 130 from each side

x+130-130 = 180-130

x = 50


The three angles in the triangle add together to make 180 degrees

x+y+y = 180

We know angle x = 50

50 + 2y = 180

Subtract 50 from each side

50+2y-50 = 180-50

2y = 130

Divide each side by 2

2y/2 = 130/2

y = 65

Elvie can type 4,200 words in 30 minutes givr the ratio of the time in minutes to the number of words

Answers

Answer:

30:4,200

Step-by-step explanation:


Elaine has a $350 gift card to Target. Elaine spent $334.50 on a sound bar at Target. If the sales tax is 8%, what was her final bill? Does she have enough money on the gift card to pay for the sound bar?

Answers

Answer:

1) Her final bill: 334,5+ the tax

the tax = 334,5*8/100= 26,76 $

Her final bill = 334,5+ 26,76= 361,26 $

2) The gift card only has 350$ and the bill is 361,26

therefore she doesn't have enough money to pay for the sound bar

Step-by-step explanation:


1. Identify and EXPLAIN the ERROR

2. Show CORRECT WORK

3. What STRATEGY did you use for solving this problem

Answers

This might be a trick question. I did the problem and got the exact same answer. I got 31 x + 0.5. If there's anything they did wrong maybe its because they didn't put a zero before 5 so 5 could become a decimal?


Please help ASAP!!!

triangle a'b'c' is a dilation of triangle abc. which is the correct description of the dilation?

Answers

Answer: A

Step-by-step explanation:

[tex]\overline{AB}[/tex] has a length of 6

[tex]\overline{A'B'}[/tex] has a length of 6 + 12 = 18, which is 3 times the length of [tex]\overline{AB}[/tex]

B = B' so this will be the center point

⇒ center B and a scale factor of 3



Answer:

Option A is the answer.

Step-by-step explanation:

Triangle A'B'C' is a dilation of triangle ABC.

We can apply the formula to get the scale factor as

Scale factor = [tex]\frac{\text{One side of triangle A'B'C'}}{\text{Corresponding side of triangle ABC}}[/tex]

= [tex]\frac{A'B'}{AB}[/tex]

= [tex]\frac{AB'+AA'}{AB}[/tex]

= [tex]\frac{6+12}{6}[/tex]

= [tex]\frac{18}{6}[/tex]

= 3

Therefore, ΔABC has been dilated with a scale factor of 3 about the point B as the center.

Option A is the answer.

Lawrence's parents pay him a base allowance of $20 per week and $3.55 per hour for extra chores he completes. Mrs. Johnson pays Lawrence $7.15 per hour to lifeguard at the city pool. Which equation models Lawrence's total weekly income? A. I = 7.15x ? 3.55y ? 20 c. I = (3.55 + 7.15)x + 20 b. I = (3.55 + 20)x + 7.15y d. I = 3.55x + 7.15y + 20

Answers

Answer:

7.15x + 3.55y + 20 = weekly income

Step-by-step explanation:

7.15x + 3.55y + 20 = weekly income


In quadrilateral LMNO, LO ∥ MN. What additional information would be sufficient, along with the given, to conclude that LMNO is a parallelogram? Check all that apply. ML ∥ NO ML ⊥ LO LO ≅ MN ML ≅ LO MN ⊥ NO

Answers

Answer:

In quadrilateral LMNO, LO ∥ MN.

ML ∥ NO

LO ≅ MN


Answer:

1 & 3 is correct on edg.


This table shows input and output values for a linear function f(x).



What is the difference of outputs for any two inputs that are one value apart?

x f(x)
---------------------
-3 -57.6
----------------------
-2 -36.4
----------------------
-1 -15.2
----------------------
0 6
----------------------
1 27.2
----------------------
2 48.4


A) -5
B) 1
C) 21.2
D) 27.2

Answers

Answer:

C

Step-by-step explanation:

This question asks us to find the difference in output or y values or consecutive x-values (values 1 unit away from each other). This is just a rate of change or slope. We will use the slope formula:

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

We substitute [tex]x_1=-3\\y_1=-57.6[/tex] and [tex]x_2=-2\\y_2=-36.4[/tex]

[tex]m=\frac{-36.4-(-57.6)}{-2-(-3)}[/tex]

[tex]m=\frac{-36.4+57.6}{-2+3}=\frac{21.2}{1} =21.2[/tex]

Answer C.


math help will be marking brainliest

Juan runs an experiment. He flips a coin 20 times. It landed on Heads 13 times and Tails 7 times. Find the experimental probability.

Compare your experimental probability to the theoretical probability of flipping a coin and it landing on heads.

Which of the following statements is true?

Question 5 options:

The theoretical probability is greater than the experimental probability.


The experimental probability is greater than the theoretical probability.


The experimental probability is equal to the theoretical probability.


Can not determine which probability is greater.

Answers

C it the answer because since heads hit 14 times it haves a higher percent of hitting heads again.


given the height, h, and the volume V of a certain cylinder, alex uses the formula r=√v/πh to compute its radius, r, to be 10 meters. a second cylinder has the same volume as the first cylinder, but is 25 times taller. what is the radius of the second cylinder?

a). 2/5 meter
b). 2 meters
c). 50 meters
d). 250 meters

Answers


[tex]r \: = \: \sqrt{ \frac{v}{\pi .h} } \: = \: 10 \: m[/tex]
[tex] {r}^{.} \: = \: \sqrt{ \frac{v}{25h\pi} } \: = \: \frac{1}{5} \sqrt{ \frac{v}{\pi.h} } \: = \: \frac{10}{5} \: m \: = \: 2 \: m[/tex]

What is the measure of Angle 1 and 2? Enter your answer as a number.

Answers

Final answer:

The measure of angles can be in degrees, minutes of arc, and seconds of arc, with the example given (9:00 a.m. clock hands) resulting in a 90-degree angle.

Explanation:

The measure of angles is often given in degrees, minutes of arc, and seconds of arc.

These units subdivide a degree into finer measurements, where one degree equals 60 minutes and one minute equals 60 seconds.

One example of using these measurements is in Astronomy, where astronomers measure the angular separation of stars in the sky.

Angles are crucial to understanding the positions and movements of celestial bodies.

Returning to the practice problem provided: 'What is the angle in degrees between the hour hand and the minute hand of a clock showing 9:00 a.m.?', we can calculate this using the understanding that each hour on the clock represents 30 degrees (360 degrees / 12 hours).

At 9:00 a.m., the hour hand is on the 9 and the minute hand is on the 12, creating a 90-degree angle between them.

2,008 kilograms of potatoes were packed into sacks weighing 8 kilograms each how many sacks were packed

Answers

Answer:

251

Step-by-step explanation:

2008/8

Answer:

16064

Step-by-step explanation:

2,008 x 8= 16064

a sample of 144 was taken from a population with a standard deviation of 36 inches. In this case the sample mean will be within how many inches of the population mean 99.7% of thew time?

Answers

Answer:

9 inches

Step-by-step explanation:

The population is within 6 standard deviations of the mean with a confidence of 99.7 percent, 3 above and 3 below

 

The standard deviation of the sample mean is equal to the population standard deviation divided by the square root of the sample size

population standard deviation = 36

sample size = 144


standard deviation of the sample mean = 36/ sqrt(144)

                                                                   =36/12

                                                                   =3

The margin of error is  the number of standard deviations above  the mean * the standard deviations

margin of error  = 3 * 3

                           = 9 inches


Answer:

sonk

Step-by-step explanation:

honey p

A couch weighs approximately 100 pounds. If 40,000 couches are sent to furniture stores, what is the total weight in pounds of the couches?
A) 400,000
B) 4,000,000
C) 40,000,000
D) 400,000,000
23)
Which property explains how we get the equation shown in step 2?
Given: -5(x -4) - 20 = -15
Step 1: -5x + 20 -20 = -15 (Distributive)
Step 2: -5x = -15 (__________________)
Step 3: x = 3 (Multiplicative Inverse)
A) Associative
B) Commutative
C) Additive Inverse
D) Multiplicative Identity
24)
Simplify.
7x + 3(x - 2) - 4x + 8
A) 6x + 2
B) 6x + 14
C) 6x - 2
D) 14x + 2
25)
According to the distributive property, a(5 + b) =
A) 5a + b
B) 5a + ab
C) a(b + 5)
D) 5(a + b)

Answers

23 is D.24 is A.25 is B.if you have any questions about how I get the answer right you can ask me.i’m not sure with the first one sorry.

Answer:


Step-by-step explanation:

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Help with these questions please!

Answers

Answer:

1.  16

2.  -4

Step-by-step explanation:

First factor the expression

lim x→1  (x^3 + 5x^2 + 3x-9)/(x-1)

lim x→1  (x-1) (x+3)^2/(x-1)

Canceling the x-1  in the top and bottom

lim x→1   (x+3)^2

Let x=1

lim x→1   (1+3)^2 = 4^2 = 16


2.  lim x→0 (x^2 -6x+8) /(x-2)          

First factor the expression

    lim x→0 (x-4) (x-2) /(x-2)        

Canceling the x-2  in the top and bottom

lim x→0 (x-4)

Let x=0

lim x→0   (0-4) = -4

Filling in the table

x     -.1      -.01       -.001     .001     .01     .1

f(x) -4.1  -4.01    -4.001   -3.999   -3.99  -3.9

I know this isn't helpful, but I REALLY need help on this question...

Given: f(x) = x^2 + 7x + 10. From the Rational Root Theorem, we know p=10 and q=1. List all potential roots using the ratio p/q.

please help will give brainliest
What is the period of the function f(x) shown in the graph?

Answers

Answer:

The period is [tex]\pi[/tex].

Step-by-step explanation:

The answer is determined by finding the length of 1 cycle of the function. Trig functions sine and cosine have a wavy form. One starts and ends int he middle - sine. The other starts above and stops above- cosine. Regardless of the function, the period will be the same because the period asks "how fast does this function complete 1 wave?"

If cosine we start at one of the top points, trace the graph till we reach the same y-value again. The period is the time or difference in x-values. For instance if I started at the x-value [tex]\frac{\pi }{2}[/tex] and ended at [tex]\frac{3\pi }{2}[/tex] then I'd subtract them.

[tex]\frac{3\pi }{2}[/tex]-[tex]\frac{\pi }{2}[/tex]=[tex]\frac{2\pi }{2}[/tex]=[tex]\pi[/tex]

The period is [tex]\pi[/tex].

Perry has a total of 25 five dollar Bill's and 10 dollar Bill's in his pocket the value of these Bill's are 175.00$ how many ten dollar Bill's are in Perry's pocket

Answers

Perry has 5 ten dollar bills.

To get this answer, it is best to start by multiplying 25 and 5, which should get you the answer 125. After that, subtract 125 from 175. This should leave you with $50 left. Divide 50 by 10 and you're final answer should be five. Hope this helped!

Answer: there are 10, 10 dollar bills in perry`s pocket

Step-by-step explanation:

Algebra II Please Help

Answers


[tex] {s}^{2} = 2gh[/tex]
[tex] {23}^{2} = 2 \times 32 \times h[/tex]
[tex]h = \frac{ {23}^{2} }{64} = 8.2[/tex]
Answer is A, approximately 8 feet

Rewrite the expression without using grouping symbols.



12(x – 17)

Question 1 options:

12x – 29


12 + 12 • 17


12x – 17


12x – 12 • 17

Answers

Answer:

12x -12*17

Step-by-step explanation:

12(x – 17)

We can distribute the 12 to both terms inside the parentheses

12*x - 12*17

12x -12*17

What are the coordinates of the midpoint of the segment whose endpoints are A (-1, -2) and B (6, 12)

x-coordinate:


y-coordinate:

Answers

Answer:

Mid point = [tex](\frac{5}{2} ,5)[/tex]

Step-by-step explanation:

We are given the coordinates of the end points of a line segment AB and we are to find the coordinates of its mid point.

The coordinates of the end points are: A (-1, -2) and B (6, 12).

We know the formula of the mid point:

Mid point = [tex](\frac{x_1+x_2}{2} ,\frac{y_1+y_2}{2} )[/tex]

So putting in the given values to find the mid point of line segment AB:

Mid point = [tex](\frac{-1+6}{2} ,\frac{-2+12}{2} )[/tex] = [tex](\frac{5}{2} ,5)[/tex]

A. Green Grapes
B. Red Grapes
C. Red and Green Grapes cost the same

Answers

I think it’s Bi think it’s B

A student jog the same number of laps each week.9 students jogged 63 laps.How many laps will 13 students jog

Answers

9/63 = 1/7 = 13/x
13 students jog 91 laps.

A six sided number cube is rolled 12 times. An even number is rolled 7 times. What is the experimental probability that an even number is rolled?

Answers

Answer:

The experimental probability is 7/12 or 58.3%

Step-by-step explanation:

In order to find the experimental probability, we just look at the amount of times it happened in our test. The fact that the actual probability is 50% does not matter when looking at experimental numbers.

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