Evaluate (2√3 + √5)(2√3 - √5)​

Answers

Answer 1
Answer: 7

explantation:
Answer 2

Answer:

= 4 × 3 - 5

=12-5

=7

Step-by-step explanation:

the answer is 7


Related Questions

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>
The probability of drawing a blue ball from Bag A is 1/5 and the
probability of drawing a red ball from Bag B is 2/3.
What is the probability of drawing a blue ball from Bag A AND a red
ball from Bag B?

Answers

Answer:

the probability of drawing a blue ball from bag A is 1/5 and the probability of drawing a red ball from bag B is 2/3.

The probability of drawing a blue ball from Bag A and a red ball from Bag B will be 2/15.

What is the definition of probability?

Probability denotes the likelihood of something happening. It is concerned with the occurrence of an unpredicted event.

Probability can only have a value between 0 and 1. Its simple notion is that something will most likely occur. The favorable event's proportion to the overall number of events is known as the favorable event ratio.

The probability of drawing a blue ball from Bag A is, 1/5

The probability of drawing a red ball from Bag B is, 2/3.

P(A)=1/5

P(B)=2/3

The probability of drawing a blue ball from Bag A and a red ball from Bag B will be;

P(A and B)=P(A). P(B)

P(A and B)=(1/5)×(2/3)

P(A and B)=(2/15)

Hence,the probability of drawing a blue ball from Bag A and a red ball from Bag B will be 2/15.

To learn more about the probability refer;

https://brainly.com/question/795909

#SPJ2

PLEASE HELP ME AND SHOW YOUR WORK

Answers

Answer:

B

Step-by-step explanation:

Hope the picture helps!

Ms.Gallegos burns 236 calories

Answers

Dang so he fat step by step

The volume of the box is 448 ft'. Find its length and width.
4 ft
X-6
X
The box has a length of
ft and a width of
ft.
What is length and width

Answers

Answer:

hi

Step-by-step explanation:

Find an answer to your question The volume of the box is 448 ft'. Find its length and width. 4 ft X-6 X The box has a length of ft and a width of ft.

hope this helps

Researchers doing a study comparing time spent on social media and time spent on studying randomly sampled 200 students at a major university. They found that students in the sample spent an average of 2.3 hours per day on social media and an average of 1.8 hours per day on studying. If all the students at the university in fact spent 2.2 hours per day on studying, with a standard deviation of 2 hours, the sampling distribution of the time spent studying has approximate distribution

Answers

Answer:

The sampling distribution of the time spent studying has an approximately normal distribution, with mean 2.2 and standard deviation 0.1414.

Step-by-step explanation:

Central Limit Theorem

The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]s = \frac{\sigma}{\sqrt{n}}[/tex].

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

Each student:

Mean of 2.2 hours, standard deviation of 2 hours.

Sampling distribution of the time spent studying has approximate distribution

Sample of 200.

By the Central Limit Theorem,

Approximately normal

Mean 2.2

Standard deviation [tex]s = \frac{2}{\sqrt{200}} = 0.1414[/tex]

The sampling distribution of the time spent studying has an approximately normal distribution, with mean 2.2 and standard deviation 0.1414.

Ramon has 7/8 of a cup of cottage chesse. How many 1/4 cup servings can he make?

Answers

I don’t know u tell me that’s the answer

please help will mark as brainiest

Answers

The answer is 41% hope this helps

Use the distributive property to fill the blanks. 3x(8-1)=(3x_)-(3x_)

Answers

4 and 6 this is the correct answer

Janet, an experienced shipping clerk, can fill a certain order in 7 hours. Jim, a new clerk, needs 9 hours to do the same job.
Working together, how long will it take them to fill the order?

Answers

Answer:

zhdhsgscsisgege8djdhshsyw7273yeh3737eyd

Use distributive property 25(20-4p)+8

Answers

Answer:

508-100p

Step-by-step explanation:

pleaseeee help ill give brainliest answer if u dont know dont responddd

Answers

Answer:

864 square inches

Step-by-step explanation:

Surface Area = 12 x 12 x 6

Surface Area = 144 x 6 = 864

Hope that helps!

Answer:

864

Step-by-step explanation:

12*12 =144 (the surface of one side

144*6 =864 (the surface of all sides)

If 3/5 of a bag of jelly beans weighs 6 3/4 ounces , how much does one bag of jelly beans weigh?

Answers

I *think* a full bag a jelly beans would be 45/4 oz or 11 1/4 oz

-3/5 of an bag weighs 6 3/4 oz, or 27/4 oz
-divide the 27 by 3 to get 1/5 of the weight, which gives you 9/4
-9/4 (5/1) (to get 5/5 of the weight) is 45/4
-45/4 is equal to 11 1/4

Hope this is right...

Without factoring, determine which of the graphs represents the function g(x)=21x2+37x+12 and which represents the function h(x)=21x2−37x+12. Explain your reasoning. The graph of represents the function g(x)=21x2+37x+12. The graph of represents the function h(x)=21x2−37x+12. Because c is positive, the constant terms in each factor must have signs. Because the function has a positive value for b, the constant terms in each factor will both be which results in Response area roots, and the graph of Response area has two Response area x-intercepts. Because the function has a negative value for b, the constant terms in each factor will both be which results in Response area roots, and the graph of Response area has two Response area x-intercepts.

Answers

Answer:

The graph which represents the function g(x) = 21·x² + 37·x + 12, is described as follows;

Because 'c' is positive, the constant terms in each factor must have the same signs

Because the function has a positive value for 'b', the constant terms in each factor will both be positive which results in negative  roots and the graph of the function, g(x) = 21·x² + 37·x + 12, has two negative x-intercepts

The graph which represents the function h(x) = 21·x² - 37·x + 12, we have is described as follows;

Because 'c' is positive, the constant terms in each factor must have the same signs

Because the function has a negative value for 'b', the constant terms in each factor will both be negative which results in positive roots and the graph of the function, g(x) = 21·x² + 37·x + 12, has two positive x-intercepts

Step-by-step explanation:

The given functions are;

g(x) = 21·x² + 37·x + 12

h(x) = 21·x² - 37·x + 12

For the graph which represents the function g(x) = 21·x² + 37·x + 12, we have

Because 'c' is positive, the constant terms in each factor must have the same signs

Because the function has a positive value for 'b', the constant terms in each factor will both be positive which results in negative  roots and the graph of the function, g(x) = 21·x² + 37·x + 12, has two negative x-intercepts

For the graph which represents the function h(x) = 21·x² - 37·x + 12, we have

Because 'c' is positive, the constant terms in each factor must have the same signs

Because the function has a negative value for 'b', the constant terms in each factor will both be negative which results in positive roots and the graph of the function, g(x) = 21·x² + 37·x + 12, has two positive x-intercepts

Find the slope.

Bonus: Write the equation of the line.

Answers

Answer:

1 so y=1+b

Step-by-step explanation:

9514 1404 393

Answer:

slope: -1equation: y = -x +3

Step-by-step explanation:

The slope is the ratio of "rise" to "run". The "rise" is the vertical distance between two points; the "run" is the corresponding horizontal distance.

Here, we see point A is (0, 3) and point B is (1, 2). Then the "rise" is 2 -3 = -1, while the "run" is 1 - 0 = 1. The slope is the ratio ...

  m = rise/run = -1/1 = -1

The slope of the line is -1.

__

The point A is the y-intercept, where the line crosses the y-axis. It tells us the value of y is 3 when x=0. So, we can write the equation in slope-intercept form as ...

  y = mx + b . . . . . where m is the slope (-1) and b is the y-intercept (+3)

  y = -x +3

A hot air balloon is at an altitude of

100 1/5 yards. The balloon's altitude decreases

by 10 4/5 yards every minute. Determine the

number of minutes it will take the balloon to reach an altitude of 57 yards.

Answers

Answer:

It will take 4 minutes for the balloon to reach an altitude of 57 yards.

Step-by-step explanation:

Initial altitude:

100 1/5 yards = 100 + 0.2 = 100.2 yards.

Decrease per minute:

10 4/5 yards = 10 + 0.8 = 10.8 yards.

So, after t minutes, the height of the ballon is given by:

[tex]h(t) = 100.2 - 10.8t[/tex]

Number of minutes it will take the balloon to reach an altitude of 57 yards.

This is t for which [tex]h(t) = 57[/tex]. So

[tex]h(t) = 100.2 - 10.8t[/tex]

[tex]57 = 100.2 - 10.8t[/tex]

[tex]10.8t = 43.2[/tex]

[tex]t = \frac{43.2}{10.8}[/tex]

[tex]t = 4[/tex]

It will take 4 minutes for the balloon to reach an altitude of 57 yards.

please help asap!!!!!!

Answers

Answer:

one point will be on (3,2) another on (5,3) and 1 more on (6,6)

Step-by-step explanation: not sure if this is 100% correct or not

A rectangle has an area 12cm². If the length of the rectangle is ( x + 1 )cm and the width is x cm, find the possible value(s) of x . Show the working please thank you

Answers

x can be 3 because:
(3+1)(3)=(4)(3)=12
I believe that is the only possible value for x.
Good luck to you!

Answer:

x can be 3 or (-4) because

area of a rectangle= length × breadth

12=x×(x+1)

12=x^2+x

x^2+x-12=0

x^2 +4x-3x-12=0

x(x+4)- 3(x+4)=0

(x+4)(x-3)=0

(x+4)=0 or (x-3)=0

Therefore, x=(-4) or 3

Since, the dimensions of a rectangle cannot be negative, x=3.

Therefore, the width of a rectangle(x)=3 cm,

the length of a rectangle(x+1)=(3+1)=4 cm

Pls mark me as the brainliest.

Explain how you would combine like terms and use properties of operations to solve the inequality 5(2t + 3) - 3t < 16

Answers

Step-by-step explanation:

step 1. 10t + 15 - 3t < 16 (distributive property)

step 2. 7t +15 < 16 (combine like terms)

step 3. 7t < 1 (subtract 15 from both sides)

step 4. t < 1/7 ( divide both sides by 7.

HELP PLEASE I GOT CACA WIFI
Question-
If x = 4 units, y = 8 units, and h = 7 units, find the area of the parallelogram shown above using decomposition.
answer choices-
A. 28 square units
B. 56 square units
C. 84 square units
D. 112 square units

Answers

Answer:28

Step-by-step explanation:

hope this helpes

what type of angle is this

Answers

Answer:

Straight

Step-by-step explanation:

If the angle is flat or 180 degrees, it is straight

If the angle is like an L or 90 degrees, it is right

If the angle is less than 90 degrees, it is acute

If the angle is more than 90 degrees, it is obtuse

Hope this helps!!

Answer:

IT is a straight angle because it is 180 degrees

Step-by-step explanation:

Please explain clearly assignment is due today! so quick

Answers

Answer:

No

Step-by-step explanation:

Use 2/5...

2 times 2 is 4

5 is greater than four

but 4/5 and 2/5 cannot be replaced with 0

Hence this claim is busted

i hope this helps!

Please help me you don't have to show your work just pls tell me the answer

Answers

Answer:

A

Step-by-step explanation:

8 pink : 7 orange

Find the equation of the line that is perpendicular to the x-axis and passes through the point (-10,-1). Give the full equation as your answer. The equation is _______________

Answers

Answer:

x = -10

Step-by-step explanation:

First, determine the slope of the answer. The x-axis is a horizontal line, thus the new line must be vertical. All vertical lines are represented by the equation x = a number. That number represents the x-value of all the points the vertical line passes through.

So, since the line passes through (-10, -1), take the x-value of that point and put it into that equation. Thus, x = -10.

(You must show equality properties in work so I can earn full credit)


Solve the equation. Enter your answer in the box.


x=³√27


x = _____

Answers

Answer:

The cube root of 27 is 3

Sounds off topic but I'm feeling sad today, my teacher gave me a project and springboard for homework and I'm crying rn because of how much stress and pressure for me none of my family help me because they don't understand English I wish for positive things love you all <3

Answers

Answer:

man i get that- but just try and keep your head up!! you got this!!

Step-by-step explanation:

have cute picture of a cat!!

Things are only hard if you make them, so simply tackle it like the hulk in avengers: age of Ultron! Besides, with as bright of a head as you have on your shoulders, it should be a piece of cake! Also while doing the project, try listening to music. That way, it makes the time pass by and before you know it, your in the teachers room with that A+ project. Anyway, I wish you the best of luck and hope you have a wonderful day! :)

what is the value of the expression below when c=5 and d=4?
6c² -5d + 8
A 48
B 79
C 138
D 888

Answers

Step-by-step explanation:

Goal

Evaluate the expression.

Given

Expression

6c²-5d+8

Condition

c = 5 and d = 4

Step 1

Substitute c = 5 and d = 4 in the expression.

6(5)²-5(4)+8

6(25)-20+8

Step 2

Evaluate the expression.

150-20+8

150-12

138

Hence, the solution is 138.

Answer:

138 is answer please give brainliest

is 1/2 x 3/4 equal to 1, less than 1, more than 1

Answers

Answer:

3/8 so it is less than 1

Step-by-step explanation:

1. What is the value of the expression ƒ2 + 8 if ƒ = 7?

Answers

Answer:

f=8/5

Step-by-step explanation:

f*2+=f7

2f+8=f*7

2f+8=7f

2f=7f-8

2f-7f=-8

-5f=-8

Another one the last one ASAP

Answers

Answer:

13m²

Step-by-step explanation:

Area=6.5*4÷2=13

Answer:

13m

Step-by-step explanation:

1/2 × bas × perpendicular height

1/4 divided by 2/5 fraction form

Answers

Answer:

5/8.

Hope this helped.

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