Evaluate :
(x+y)(x -y), if x = -3, y = -5

Answers

Answer 1
((-3)+(-5))((-3)-(-5))= -16

i hope this helps!!

Related Questions

if you borrow $1,200 for 3 years at an annual interest rate of 4% how much will you pay altogether​

Answers

Answer:

$1,344.00

Step-by-step explanation:

A=P(1+rt)

A=1,200(1+(0.04)(0.03))

Graph the line with the equation y - 1/4x +5.​

Answers

Answer:

Y-intercept=5 Slope=-1/4

Step-by-step explanation:

Plot a point on (0,5)

From that point, you can either go down 1 point and right 4 points, or you can go up 1 point and go left 4 points.

Whichever one you choose, plot a point after each 2 movements

if this is too confusing, another point would be (4, 4) then make a line through both points.

A sports reporter for the local paper keeps stats at little league baseball games.
​Among them, he tracked the number of pitches thrown at all of Fulton County Little League's games and Randolph County Little League's games.
​The box-and-whisker plots show the results.

Answers

Answer:

The fulton county has fewer pitches.

Step-by-step explanation:

What is the solution to the equation below? vx-5=x-11

A. X=9
B. X=15
C. X=14
D. X=6

Answers

Answer:0=−6

Step-by-step explanation:

the answer is D. X=6

Hello. I have no idea how to solve this question below about Probability. I would appreciate if you show how to solve it step-by-step. Thank you so much.

Alonzo, Bob, and Casper work bussing tables at a restaurant. Alonzo has a 70% chance, Bob has a 10% chance, and Casper has a 20% chance of bussing tables in the middle area of the restaurant. If Alonzo is bussing tables, he has a 6% chance of breaking a dish. If Bob is bussing tables, he has a 2% chance of breaking a dish. Finally, if Casper is bussing tables, he has a 3% chance of breaking a dish. If there is a broken dish in the middle of the restaurant, what is the probability it was broken by Casper?

Answers

Alonzos will be making 45 percent

The probability the dish was broken by Casper if he bussed tables is;

P(Casper bussing tables and breaking dish) = 0.6%

We are given the three probabilities each for Alonzo, Bob and Casper for bussing tables and also in case any dish should break.

P(Alonzo bussing tables) = 70% = 0.7

P(Bob bussing tables) = 10% = 0.1

P(Casper bussing tables) = 20% = 0.2

P(Alonzo breaking a dish) = 6% = 0.06

P(Bob breaking a dish)  = 2% = 0.02

P(Casper breaking a dish)  = 3% = 0.03

This is all about independent events as the probability of breaking the dishes does not increase or decrease with the bussing of the tables.

Thus; P(A and B) = P(A) + P(B)

Thus, if a dish is broken, the probability that it was broken by Casper is;

P(Casper bussing tables and breaking dish) = P(Casper bussing tables) × P(Casper breaking a dish)

P(Casper bussing tables and breaking dish) = 0.2 × 0.03

P(Casper bussing tables and breaking dish) = 0.006 or 0.6%

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what is half of 18 !!!

Answers

Answer:

9

Step-by-step explanation:

find the value of x

thank u so much

Answers

Answer:

x= 100

Step-by-step explanation:

The opposite angles in a cyclic quadrilateral are supplementary.

80+x = 180

x = 180-80

Answer:

x = 100

Step-by-step explanation:

The opposite angles in a cyclic quadrilateral are supplementary, then

x + 80 = 180 ( subtract 80 from both sides )

x = 100

Write the first 4 multiples of 3/8

Answers

Multiples of 3

: 3, 6, 9, 12, 15, 18, 21, 24, ...

Multiples of 4

: 4, 8, 12, 16, 20, 24, ...

Multiples of 8

: 8, 16, 24, ..

2

Find the smallest number that is shared by all rows above. This is the LCM.

LCM = 2424

Method 2: By Prime Factors

1

List the prime factors of each number.

Prime Factors of 3

: 3

Prime Factors of 4

: 2, 2

Prime Factors of 8

: 2, 2, 2

2

Find the union of these primes.

2,2,2,32,2,2,3

3

Multiply these numbers: 2\times 2\times 2\times 3=242×2×2×3=24. This is the LCM.

LCM = 2424

PLEASE PLEASE HELP ME

Answers

equation : y = .5x + 1

...sorry, not sure what the domain is

How many grams of a radioactive kind of neodymium will be left after 33 days if the half-life is 11 days and you start with
160 grams?

Answers

Answer:

20 grams will be left.

Step-by-step explanation:

Half-life is 11 days

This means that in each 11 days, you lose 50% of the amount.

33 days

33/11 = 3 half-lifes.

You start with 160 grams

After 11 days: 160/2 = 80 grams

After 22 days: 80/2 = 40 grams

After 33 days: 40/2 = 20 grams.

20 grams will be left.

Answer:10

Step-by-step explanation:

Tyshawn drew a two-dimensional shape. The shape had multiple sides. The
shape had only right angles. There are two pairs of parallel lines. One pair is 4 inches

Answers

Answer:

This is a rectangle

Step-by-step explanation:

2D shape with 4 right angles would be a rectangle because 2 sides are equal and the other 2 would be equal to give you 4 right angles

Evaluate −6 − (−1)
a.) -7
b.) 5
c.) -5
d.) 6

Answers

Answer:

-5

hope this helped!!

Answer:
-5

Steps:
S A O
-6 - (-1)
-6 + (+1)
-6 + 1
-5

S- sign states the same
A- sign changes to addition
O- sign becomes the opposite

A carpenter cuts a board 3 3/8 feet off the end of a board that is 6 1/2 feet long. How long is the remaining piece of board?

Answers

Answer:

[tex]6 \times \frac{1}{2} - 3 \times \frac{3}{8} = 1 \times \frac{7}{8} [/tex]

A fraction is written in the form of a numerator and a denominator where the denominator is greater than the numerator.

The remaining piece of the board when [tex]3\frac{3}{8}[/tex] feet is cut off from the end of the board of [tex]6\frac{1}{2}[/tex] feet is

[tex]3\frac{1}{8}[/tex] feet

What is a fraction?

A fraction is written in the form of a numerator and a denominator where the denominator is greater than the numerator.

Example:

1/2, 1/3 is a fraction.

1/2 of 4 is 2.

1/4 of 20 is 5.

We have,

Length of the board = [tex]6\frac{1}{2}[/tex] feet.

The length cut off from the board = [tex]3\frac{3}{8}[/tex] feet.

The remaining length of the board:

= [tex]6\frac{1}{2}[/tex]  -  [tex]3\frac{3}{8}[/tex]

= 13/2 - 27/8

Find the Lcm of 2 and 8.

The Lcm of 2 and 8 is 8.

= (13x4 - 27) / 8

= (52 - 27) / 8

=  25/8

Write it in a mixed fraction.

= [tex]3\frac{1}{8}[/tex] feet

Thus,

The remaining piece of the board when [tex]3\frac{3}{8}[/tex] feet is cut off from the end of the board of [tex]6\frac{1}{2}[/tex] feet is  [tex]3\frac{1}{8}[/tex] feet.

Learn more about fractions here:

https://brainly.com/question/24370499

#SPJ2

Does anybody know if it’s possible to find the answers online for Aleks math?

Answers

Try photomath or there should be some math apps on app store


Katie earns $0.50 each time she does a chore. She does some chores. Then she gets $6 for her birthday. How much money does she have?

Answers

the equation for this would be Y= .5x+6 where x is the amount of chores and Y is the total money she has, but it’s no real way to answer this without knowing how many chores she did.

Answer:

First I need to know how much chores she does because I can't get the money that she makes with the word SOME I need to know how many chores she makes.

Step-by-step explanation:

a parabola has vertical axis symmetry with a vertex at the point of (0,0) and (0, -5) focus point

Answers

What is the question?

n = 40, p=0.95, X = 38
P(38) =

Answers

Answer:

36.1

Step-by-step explanation:

when 3 times a number is added to it's square the total is 18​

Answers

Answer:

x(the number)=3

Step-by-step explanation:

3×3+3squared = 18

Answer:

3x + x^2 = 18

x^2 + 3x - 18 = 0

(x + 6)(x - 3) = 0

x + 6 = 0

x = -6

x - 3 = 0

x = 3

What is the scale factor of Figure B to Figure A?​

Answers

The scale factor is 4:10 or reduced to 2:5

a. How much warmer is 82 than 40?
b. How much warmer is 82 than -40?
a. What is the difference in height between 30 m up a cliff and 87 m up a cliff? What is the distance between these positions?
b. What is the difference in height between an albatross flying at 100 m above the surface of the ocean and a shark swimming 30 m below the surface? What is the distance between them if the shark is right below the albatross?

Answers

Answer:

a. 42

b. 122

a. 57

b. 130

Step-by-step explanation:

For problem A:

because both of these values have positive numbers, just use normal subtraction

82 - 40 = 42 degrees warmer

For problem B:

because we are subtracting a negative number from a positive number, we add both of these numbers because 82 - -40 can also be equal to 82 + 40

82 - -40 = 122

For problem A:

the sentences 30m up a cliff and 87m up a cliff are describing positive values.

87 - 30 = 57

For problem B:

Now in this problem, the sentence 100m above the surface is describing a positive value, but the sentence 30m below the surface describes a negative value

how do I know this?

if the sentences above the surface and below the surface are describing positive and negative values, then there has to be a neutral value ( which is 0)

0 meters = the surface, because they are using both positive and negative values, meaning that the surface is the neutral value

by using a number line, you can draw it out like this

below the surface-------------------------the surface----------------------------above the surface

-30--------------------------------------------0--------------------------------------------100

therefore, 100 - - 30 = 100 + 30 = 130

in a school with 400 student , 22% are sixth graders . How many students are in the sixth grade?

Answers

Answer:

88

Step-by-step explanation:

Thando bought 24 marbles and lost 4/6 of his marbles how many did he lose?​

Answers

Answer:

he lost 16, he has 8 left

Step-by-step explanation:

24 divided by 6 =4

4 x 4 = 16

24 - 16 = 8

PLS HELP ME YOU DON'T HAVE YO SHOW UR WORK

Answers

Answer:

b.

-2/3

Step-by-step explanation:

2/3 + (-2/3)

2+-2/3

0

hope this helps :)

7ft
5ft
8ft
7ft
Find the area of each figure

Answers

wheres the figure..??

Find the value (5x2 - 6x) = 3x​

Answers

Answer:

x=0, 1+4/5

Step-by-step explanation:

do you need a Step-by-step explanation?

(5•2-6x)=3x
10-6x=3x
10=9x
x=7/6 or 1 1/6 or 1.16666....

According to a recent​ poll, 25​% of adults in a certain area have high levels of cholesterol. They report that such elevated levels​ "could be financially devastating to the regions healthcare​ system" and are a major concern to health insurance providers. According to recent​ studies, cholesterol levels in healthy adults from the area average about 260 mg/dL, with a standard deviation of about 35 mg/dL, and are roughly Normally distributed. Assume that the standard deviation of the recent studies is accurate enough to be used as the population standard deviation. If the cholesterol levels of a sample of 49 healthy adults from the region is​ taken answer parts (a) through (d). A) What is the probability that the mean cholesterol level of the sample will be no more than 210? B) What is the probability that the mean cholesterol level of the sample will be between 205 and 215? C) What is the probability that the mean cholesterol level of the sample will be less than 200?D) What is the probability that the mean cholesterol level of the sample will be greater than 222?

Answers

Answer:

The answer is below

Step-by-step explanation:

The z score is used to determine by how many standard deviations the raw score is above or below the mean. The z score is given by:

[tex]z=\frac{x-\mu}{\sigma} \\\\for\ a \ sample(n):\\\\z=\frac{x-\mu}{\sigma/\sqrt{n} }\\\\where\ x=raw\ score,\mu=mean, \sigma=standard deviation[/tex]

Given that n = 49, μ = 260 mg/dL, σ = 35 mg/dL

a) For x < 210:

[tex]z=\frac{x-\mu}{\sigma/\sqrt{n} } =\frac{210-260}{35/\sqrt{49} } =-10[/tex]

From the normal distribution table, P(x < 210) = P(z < -10) = 0.0001

b) For x > 205:

[tex]z=\frac{x-\mu}{\sigma/\sqrt{n} } =\frac{205-260}{35/\sqrt{49} } =-11[/tex]

For x < 215:

[tex]z=\frac{x-\mu}{\sigma/\sqrt{n} } =\frac{215-260}{35/\sqrt{49} } =-9[/tex]

P(205 < x < 215) = P(-11 < z < -9) = P(z < -9) - P(z < -11) = 0.0001 - 0.00001 = 0.00009

c) For x < 200:

[tex]z=\frac{x-\mu}{\sigma/\sqrt{n} } =\frac{200-260}{35/\sqrt{49} } =-12[/tex]

From the normal distribution table, P(x < 200) = P(z < -12) = 0.00001

d) For x > 222:

[tex]z=\frac{x-\mu}{\sigma/\sqrt{n} } =\frac{222-260}{35/\sqrt{49} } =-7.6[/tex]

From the normal distribution table, P(x > 200) = 1 - P(z < -12) = 1 - 0.0001 = 0.9999

The mode score on the 6th grade math quiz was 94! Which of these interpretations must be correct?
A: 99 was the highest score on the test.

B: More students received a 94 than any other score

C: A score of 91 was slightly below average.

D: No student scored below a 50.​

Answers

Answer: B

Step-by-step explanation: because there were more students with score of 94 than any number.

The interpretations that must be correct is option B.

Given that,

The mode score on the 6th grade math quiz was 94.

Based on the above information, the information is as follows:

More and more students should received 94 as compared to other source.It can't be say that 99 was the highest score on the test.And all other statement should not be considered.

Learn more: brainly.com/question/16911495

in the figure wx = wy. find a b c

Answers

Answer:

Step-by-step explanation:

b = 75°

a = 180° - 2(75°) = 30°

Angle XYZ = 180°-b = 105°

c = b - 35° = 40°

A speed boat travels 1040 meter in 30 minutes. How far will it go in an hour? *

Answers

Answer:

2080 meters

Step-by-step explanation:

An hour is double of 30 minutes so, if you double the length it went you would get how far it goes in an hour, 2080 meters.

HELPPPPPPPPP Please

Answers

Answer:

x= 27/2

Step-by-step explanation:

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