si a+b = 40; ab= 40 calcula a2 + b2

Answers

Answer 1

a² + b² = 1,520

Step-by-step explanation:

a + b = 40ab = 40

a² + b²

= (a + b)² - 2ab

= 40² - 2(40)

= 1,600 - 80

= 1,520


Related Questions

Need help to find the products

Answers

Answer:

(x - 1) (x^2 + 4x + 53)

Step-by-step explanation:

Common factor: x - 1

(x^3 + 3x^2+ 49x - 53) / (x - 1)

= (x^2 + 4x + 53) (x-1)

When Sharon graduates from college, she accepts a job that pays $30,000 for the
first year with a promise of a 10% raise at the beginning of each of the next 9 years.
Samantha graduates the same year and accepts a job which pays $40,000 the first
year with a raise of $1,000 at the beginning of the next 9 years.
а
In which year will Sharon's annual salary first exceed Samantha

Answers

Answer:

year 6

Step-by-step explanation:

she will be at 48,000

the other girl will be at 46,000

The year in which the salary Sharon's first exceeds Samantha's salary if,  is the 5th year Sharon graduates from college, she accepts a job that pays $30,000 for the is 5 years.

What is percentage?

A percentage, often known as percent, is a division by 100. Percentage, which means "per 100," designates a portion of a total sum. 45 out of 100 is represented by 45%, for instance. Finding the percentage of a whole in terms of 100 is what percentage calculation is. Both manual calculation and the use of internet calculators are options.

Given:

Sharon's pay = $30000,

Raise percentage = 10%,

Samantha pays = $40000,

Raise by  = $1000,

Calculate Sharon's pay as shown below,

Sharon's pay  = 30000(1 + 0.10)⁴

Sharon's pay  = 30000 × 1.77

Sharon's pay  = $43923

Calculate pay of Samantha after 4 years,

The pay of Samantha = 40000 + 4 × 1000

The pay of Samantha = $44000

Thus, Sharon's annual salary first exceeds Samantha's after 4 years.

To know more about percentages:

brainly.com/question/20818421

#SPJ2

y=-2(x+4)^2+3 find the y-intercept

Answers

Answer:

( 0, -29)

Step-by-step explanation:

Answer: ( I solve (more like the internet solve) for both x and y.

Step-by-step explanation: To find the x-intercept, substitute in  0 for y and solve for x. To find the y-intercept, substitute in 0 for x and solve for y.

Convert 14 3/5% to a fraction in lowest terms.

Answers

Answer:

13l4 3/5%

Step-by-step explanation:

ithink that is the answer

You have 8 cups of flour. A recipe calls for ⅔ cup of flour. Another recipe calls for ¼ cup of flour. How much flour do you have left after making the recipes?

Answers

Answer:

7 1/12 cups of flour

Step-by-step explanation:

2/3 + 1/4 = (8 + 3)/12 = 11/12

8 - 11/12 = 85/12 = 7 1/12 cups

look at the table in the problem 4 alex drove a distince between 2 cities in the table.he said that he drove about 2,000 miles.Which cites could Alex have driven between show ur work.Iready math book grade 4

Answers

The cities Alex could have drove between whose distance is about 2000 miles when rounded to the nearest thousand are : Chicago to San Francisco and Atlanta to Los Angeles

From the table attached which shows the distance in miles between two cities in the United States :

Distance between Chicago to San Francisco = 2131

Distance between Atlanta to Los Angeles = 2173

Only the distances between these two cities would give a value of 2000 miles when rounded to the nearest thousand mile

The other distances in the table will round to 1000 miles when rounded to the nearest thousand mile.

Learn more :https://brainly.com/question/18109354

Solve 15t – 6 < 12t.

t > 2

t < 2

t < -2

t > -2

Answers

Answer:

T<2 its the answers

Your welcome

I've attached an image of the problem(s).

Answers

Answer: B

Step-by-step explanation:

Please answer this !!

Answers

Answer:

t=5

f=13

Step-by-step explanation:

What is the y-coordinate of the plotted point?

Answers

Answer:

(3,2)

Step-by-step explanation:

run before you jump

The y-coordinate of the ordered pair, (3,2) is 2.

help pls!

Give some examples of taxation:​

Answers

Answer:

IN THE EXPLANATION!!

Step-by-step explanation:

income tax. Capital gains tax is a tax on the sale of an investment, usually stocks, bonds, precious metals and property.

Payroll tax. FICA tax is a tax levied in the United States to fund Social Security and Medicare. ...

Property taxes. Most property taxes charge for both the value of the land and the value of any buildings or other improvements on the land.

Consumption taxes. A general tax refers to a tax that applies to all or most goods and services and where all are taxed at the same rate.

a tax is imposed on everything: on products in stores, in restaurants, absolutely everywhere

Estimate 53.8-27.6. circle the compatible numbers to substitute


54-28 53-28 55-27 55-25

Answers

Answer:

54 - 28

Hope this helps :)

The compatible numbers to substitute is 54 - 28

How to determine the compatible numbers to substitute

From the question, we have the following parameters that can be used in our computation:

Estimate 53.8 - 27.6

This means that we approximate the numbers in the expression

using the above as a guide, we have the following:

53.8 = 54

27.6 = 28

Hence, the compatible numbers to substitute is 54 - 28

Read more about expressions at

https://brainly.com/question/30492964


#SPJ3

answer the question below

Answers

Answer:

B

Step-by-step explanation:

This is some strange math lol

The probability of drawing three spades in a from from a standard deck of cards when the drawn card is returned to the deck each time.

Answers

Answer:

1/64

Step-by-step explanation:

P(pick 3 consecutive spades with replacement of drawn cards) =

(13/52)(13/52)(13/52) =

(1/4)(1/4)(1/4) =

1/64

Kara’s Custom Tees experienced fixed costs of $300 and variable costs of $2 a shirt. Write an equation that can be used to determine the total expenses encountered by Kara’s Custom Tees. Let x be the number of shirts, and let C(x) be the total cost of producing x shirts. Then, calculate the cost of producing 6 shirts.





An equation that can be used to determine the total cost of producing x shirts is C(x)= ___________

The cost of producing 6 shirts is $________

Answers

Answer:

c(x)=2x+300 and $312

Step-by-step explanation:

c(6)=2(6)+300

c(6)=12+300=312

If ABC is congruent to DEC…..what is x

Answers

Answer:

x = 32.5

Step-by-step explanation:

If ABC is congruent and equal to DEC then angle CDE = angle CBA since AB || DE

thus ABC = 2x = 65 where x = 65/2 = 32.5

Annie sees 8 triangles and 5 squares. She also sees 3 circles.
Which equation can Annie use to find the number of shapes there are in
all?
8 + 5 = 0
8 + 8 = 0
5 + 3 + 0 = 8

Answers

Answer:

8+8=0 because it equals 16

In ΔFGH, g = 39 cm, h = 54 cm and ∠F=34°. Find the area of ΔFGH, to the nearest square centimeter.

Answers

Answer:

≈ 589 cm²

Step-by-step explanation:

area = 1/2 * 39 * 54 * sin34°

        = 1/2 * 39 * 54 * 0.559194

        = 588.83

        ≈ 589

explain how to calculate a unit rate such as 300 miles per hour 4 hour


my brain is not working today i need help

Answers

Answer:

75

Step-by-step explanation:

divide 4 by 300 and then you will get the answer of 75. I'm so sorry if this is wrong

What is the value of n in the proportion below?
n/28 = 4/7

•1

•12

•14

•16​

Answers

Answer:

n = 16

Step-by-step explanation:

Given the proportion, n/28 = 4/7:

Cross multiply the two fractions:

7n = 28 × 4

7n = 112

Divide both sides by 7 to solve for n:

7n/7 = 112/7

n = 16

Therefore, the value of n = 16.

Please mark my answers as the Brainliest, if you find this helpful :)

The answer is 16.

Explanation: 7 goes into 28 four times which would set the denominators as equal. But to finish converting the fraction, you would have to multiply 4 by four just like you did the denominator which gives you 16.

A manufacturer knows that their items have a normally distributed lifespan, with a mean of 5.4 years, and standard deviation of 1.2 years.

If you randomly purchase one item, what is the probability it will last longer than 3 years?

Round answer to four decimal places

Answers

Answer: bro im sorry ion no but ima look it up lol

Step-by-step explanation: it is what it is

What is the slope of the line 2y = -8x + 10? =​

Answers

Answer:

[tex]2y = - 8x + 10 ) \div 2\\ y = - 4x + 5 \\ m = - 4 = slope[/tex]

Answer:

the slope is -4x

Step-by-step explanation:

2y=-8x +10

/2    /2

y=-4x+5

A tugboat goes 72 miles upstream in 9 hours. The return trip downstream takes 4 hours. Find the speed of the tugboat without a current and find the speed of the current.

Answers

Step-by-step explanation:

72÷9= 8, so the boat was only doing 8mph going upstream (against the current) the return trip downstream only took 4 hours. 72÷18=4 meaning the boat was traveling at 18mph downstream (no current) there is a 10mph difference between upstream and downstream therefore the current had to be running at 10 mph. so the speed of the tug boat is 8mph without a current and the current is running at 10mph.

find the difference -4 -5​

Answers

Answer:

-9

Step-by-step explanation:

Think about the Keep and change rule, since this is negative, the more negative numbers there are the more it will go deeper. -4 - 5 is -9 because just create a number line and place -4 one it, then jump backwards 5 times.

what property is -8x+24=-32​

Answers

Answer:

I originally answered incorrectly, I apologize, I'm assuming to other person is correct. I'm very sorry if I had to guess, when I look it up distributive property pops up.

distributive property

−3/4y=−6 helpppppppppppppppppppppppp

Answers

Answer:

Divide both -3/4y and -6 by -3/4 to solve for y.

Answer is: y=8

Finally a question I know how to do!

Hi everybody, does this dot on the plot I have look correct, please let me know.

Answers

Answer:

no because it's between 4.2 and 4.3, when it should be between 4.1 and 4.2

Step-by-step explanation:

If L is parallel to M find value of each missing variable.

Answers

answer:

x=24 y=15



mark as brainliest
hope it helps, have a great day!

What is the fourth term of an arithmetic sequence whose first term is 23 and whose seventh term is 5?

A) 78
B) 32
C) 14
(Explain your work)

Answers

We have that  the fourth term of an arithmetic sequence is

a_4=14

Option C

From the question we are told

What is the fourth term of an arithmetic sequence whose first term is 23 and whose seventh term is 5?

A) 78

B) 32

C) 14

(Explain your work)

Generally the equation for the  arithmetic sequence  is mathematically given as

[tex]a_4=a_1+(n-1)d[/tex]

Therefore

For seventh term

[tex]5=23+(6)d\\\\d=5-23/(6)\\\\d=-3[/tex]

Therefore

For Fourth term

[tex]a_4=23+(3*(-3))[/tex]

a_4=14

For more information on this visit

https://brainly.com/question/23366835

The school auditorium has 438 seats. There are 18 rows of seats. What is the best estimate for the number of each seats in each row?

Answers

Answer:

24

Step-by-step explanation:

You take 438/18 to get 24.
The answer is 24
Other Questions
to my last question Use "To a Daughter with Artistic Talent" to answer questions 1-5. In which lines does the poet use personification to create a somber mood? Lines 3 through 5 Lines 9 and 10 Lines 17 through 19 Lines 28 and 29 what is an asteroid called that is smaller than a couple meters wide? The anti federalists did not want states to ratify the constitution because it would 1 override the compromises made at the constitution convention 2 become the law of the land3 override all states laws4 weaken the federal government At a local department store, slacks have been reduced to $27. This price is at 69.2% of the original price for slacks. Given this, what was the original price of the slacks? Round your answer to the nearest whole number if necessary. Damon is 7 years older than his brother Mark. The sum of Damon and Mark's age is 29.Mark isyears old.Damon isyears old how many 4-digit natural numbers are there? What role should government play in the lives of young people Is the following statement true or false? Novanglus stated that the colonies were largely responsible for all of Great Britains debt. * What are the advantages of ordering artillery to stop firing just before the soldiers attack How did the government response to Big Business change the manner monopolies are handled? What is the best title for this image?A. Core-Periphery Spatial RelationshipB. Core Areas of the WorldC. Reverse Brain DrainD. Conflict Theory Diagram Answer quick before the bots please! Spanish!Select the formal affirmative command. Descanso una semana. Mejora. Recete la inyeccin. Tose. Answer questions 5 to 8 using the present tense. Choose the fraction that is equal to:0.8 repeating A)8/9 B)6/7 C)8/10 D)2/25 who threw out the first pitch for the dodgers tonight Where did the Hinduism religion start what do we mean by accretion in the context of planet formation? the future was open as the land what does that mean what is the simile in that how did the egyptian writing system compare with the mesopotamian system? Henry ran a 100 m race. Use the graph to answer the following:a. How long did it take for Henry to run 100 m?b. What is Henry's average speed over the race?