explain how to do this please!

Explain How To Do This Please!

Answers

Answer 1

Answer:

The area of figure = 600 cm ²

Step-by-step explanation:

Area of this figure = area of triangle + area of rectangle

Area of triangle = 1/2 × base × height

Area of rectangle = length× breadth

=> (1/2 × 20 × 20 ) + ( 20×20 )

=> 200 + 400

=> 600 cm²


Related Questions

can somebody help me and explain how to do this

Answers

Answer:

=> 24m²

Step-by-step explanation:

Area of small rectangle = b

=> 2m× 3m

=> 6m²

Area of large rectangle = B

=> 9m × 2m

=> 18

Area of figure = area of small rectangle + area of large rectangle

=> 18 m² + 6m ²

=> 24m²

There is a leak in a container that holds a certain nontoxic gas. Each hour, it loses 10% of its volume.
Write an equation that models the amount of gas left in the container after x hours, assuming there were 300 cubic centimeters in the container before the leak. Then use your equation to determine the amount of gas left in the container after 11 hours. Round your answer to the nearest tenth.

Answers

Answer:

94.1 cm^3 to nearest tenth.

Step-by-step explanation:

Each hour 100 - 10 = 90% of the gas remains.

90% = 0.90.

At 0 hours the volume = 300 cm^3

The equation is

Amount (V) after x hours = 300(0.90)^x.

The amount after 11 hours:

V = 300(0.90)^11

= 94.14

Answer:

y = 300(0.9)^x

94.1 cm³

Step-by-step explanation:

This is an exponential decay.

y = 300(0.9)^x

where x is the number of hours, and y is the amount after x hours.

y = 300(0.9)^11

y = 94.1

what is the system solution to 8x + 7y = 39

Answers

Answer:

-8/7

Step-by-step explanation:

I thinks this is the answer

Jogging burns 375 calories in 45 minutes. Determine how many calories are burned per hour.

Answers

Answer:

500 calories an hour are burnt.

Step-by-step explanation:

45 is 3/4 of 60, so 375 is 3/4 of an hour of jogging. If we divide 375 by 3 we will get how many calories are burnt every 1/4 of an hour.

375 / 3 = 125

Now that we know what 1/4 of an hour equals we can add 125, 4 times to find the number of burnt calories in an hour of running.

125 + 125 + 125 + 125 = 500

that means jogging burns 500 calories an hour.

What is the probability that a hand of 5 cards chosen randomly and without replacement from a standard deck of 52 cards (which has 4 kings and 4 queens) contains the king of spades, exactly 1 other king, and exactly 2 queens

Answers

Answer: Approximately 0.0003047

As a fraction, it is equal to exactly 792/(2,598,960)

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

Explanation:

The king of spades must be in the hand, and we can pick any other king. There are 3 ways to pick the other king. Then there are 4 C 2 = 6 ways to pick the two queens. The 4C2 refers to the nCr notation. Or you could use Pascal's Triangle.

Overall, there are 3*6 = 18 ways to pick the king of spades, another king, and exactly 2 queens.

Then we have one more card to pick that isn't a king nor a queen. There are 4+4 = 8 cards that are either a king or queen, leaving 52-8 = 44 cards that are neither.

So there are 18*44 = 792 ways to pick a king of spades, another king, exactly 2 queens, and some other card that isn't a king nor queen.

This is out of 52C5 = 2,598,960 possible five card hands.

The probability we're after is roughly 792/(2,598,960) = 0.0003047

Side note: order does not matter with card hands.

find value of variable

Answers

Answer:

x = 23.5

Step-by-step explanation:

By inscribed angle theorem:

[tex](2x + 1) \degree = \frac{1}{2} \times 96 \degree \\ \\ \implies \: (2x + 1) \degree = 48 \degree \\ \\ \implies \: 2x + 1 = 48 \\ \\ \implies \: 2x = 48 - 1\\ \\ \implies \: 2x = 47\\ \\ \implies \: x = \frac{47}{2} \\ \\ \implies \: x = 23.5[/tex]

In a class test, (2) marks are given for every correct answers and (-1) marks for every
incorrect answers and no marks for not attending any questions.
Sreya scored 30 marks. If she got 16 correct answers, how many questions has she attempted
incorrectly?

Answers

Using a system of equations, it is found that she attempted two questions incorrectly.

What is a system of equations?

A system of equations is when two or more variables are related, and equations are built to find the values of each variable.

In this question, the variables are:

Variable x: Number of questions attempted correctly.Variable y: Number of questions attempted incorrectly.

Sreya scored 30 marks, with 16 correct questions, hence, considering the amount of points for each question, we have that:

2x - y = 30.

Since x = 16:

32 - y = 30

y = 2.

She attempted two questions incorrectly.

More can be learned about a system of equations at https://brainly.com/question/24372153

#SPJ1

Make r the subject of the formula t = r/r-3

Answers

Answer:

Infinite/(-∞, ∞)

Step-by-step explanation:

Can someone please help me? :(

Answers

your answer is A im pretty sure

Answer:

A) 2, 4, 0, 2, 4, 6, 3, 0, 7, 1, 2, 7, 8, 1, 1

Step-by-step explanation:

B says that 5 is marked but 5 is not marked on the number line

C has three 0s and there are only two 0s.

D has less numbers so that one isn't it.

hope this helped!

brainliest please!

~Kandy~

Bobby is making bread using a total of 400 grams of gluten free flour. The recipe calls for 70% of the flour to be almond flour. She needs to know how much almond flour to use

Answers

280 grams of almond flour.

She needs 70% of the flour to be almond flour

70/100*400 =  280

Claudio noticed that the sides of his $1 bill formed angles. Tell whether the angles are right angles, less than right angles, or greater than right angles. Explain.

(no picture to insert)

Answers

Claudio’s $1 bill has right angles because the sides of the bill are perpendicular to each other, so the angles of the bill are 90 degrees or right


Hope this helped you out a bit

Liz is taking guitar lessons and practices every night. Yesterday, she played a total of 40 chords in 8 minutes. Today, she will play chords for 5 minutes.
If she plays at the same rate, how many chords will Liz play today?

Answers

Answer:

25

Step-by-step explanation:

If you divide by eight, it is equivalent to five cords per minutes.

Now you know that she plays five cords per minute, right?

So you want to multiply five by five, because she plays a total of five minutes.

I need food to live, but if I eat dirt, I die. I am all-powerful, but I shrink back at the sight of water. What am I?

Answers

Answer:

Fire?

Step-by-step explanation:

fire would need and not need all of these things

Answer:

Fire.

Step-by-step explanation:

It has to be fire?

pls help me with this ​

Answers

The answer is A. 8.28

306.87-298.59= 8.28


© There are 5 times as many females as males on the maths course at university. What fraction
of the course are female?
Give your answer in its simplest form.

Answers

Answer: 5/6

Step-by-step explanation: Females are 5 times more

Ratio of female to male will be 5:1

Female will be 5/6 and males will be 1/6

Who invented mathematics??

Answers

Archimedes is known for mathematics.
Archimedes
He is known as the father of math

The following table represents the highest educational attainment of all adult residents in a certain town. If a resident who is 40 or older is chosen at random, what is the probability that they have completed a bachelor's degree and no more? Round your answer to the nearest thousandth.

Answers

Using it's concept, it is found that there is a 0.183 = 18.3% probability that the person has completed a bachelor's degree and no more.

What is a probability?

A probability is given by the number of desired outcomes divided by the number of total outcomes.

Researching this problem on the internet, it is found that 529 + 1054 = 1583 out of 1911 + 6730 = 8641 people aged 40 or older have completed a bachelor's degree and no more, hence the probability is given by:

p = 1583/8641 = 0.183.

More can be learned about probabilities at https://brainly.com/question/14398287

#SPJ1

Is the following number rational or irrational?
-2π
Choose 1 answer:
А
Rational
00
B
Irrational

Answers

Answer:

B, Irrational number

Step-by-step explanation:

Irrational number because

[tex]\pi[/tex]

is Irrational number

Consider the two solids shown.



What is the difference between the number of vertices of the two solids?

one
three
four
six

Answers

I’m not sure but when I check it show 6

PLEASEEE HELP !!
Matching equations with diagrams & finding unknown ancies
is on line WY. Find the value of b.
Which equation(s) and angemeurerents go with the
diagram. Choose ALL that apply
(Select all that apply.)

Answers

Answer: b+95+34=180, b+129=180, 51

Step-by-step explanation:

b+95+34=180 works because the angles add to form a straight angle.

From this, we can obtain b+129=180 by adding the two constants.

Subtracting 129 from both sides, we get b=51.

write an explicit formula for each geometric sequence
1000,200,40,...​

Answers

Answer:

[tex]\text Explicit \ Formula :\ a_{n}= 1000\times (\frac{1}{5}) ^{n-1}[/tex]

Step-by-step explanation:

Let [tex]\left( a_{n}\right)[/tex]  be our geometric sequence

The explicit formula for [tex]\left( a_{n}\right)[/tex] is :

 [tex]a_{n}= a_1\times r^{n-1}[/tex]

where r is the common ratio

          a1 is the first term

We notice that :

200/1000 = 1/5

40/200 = 1/5

⇒ r = 1/5

[tex]a_1 = 1000\ \ (given)[/tex]

Conclusion:

[tex]a_{n}= 1000\times (\frac{1}{5}) ^{n-1}[/tex]

homework problem lol​

Answers

Answer:

G is the answer hope that helpd

Help me pls
[tex]{ x }^{ 2 } -7x+12[/tex]

Answers

Answer:

x is 3 or 4

Step-by-step explanation:

I assume that you want to find the solutions for this quadratic equationFirst of all, set it all to equal 0[tex]x^{2}-7x+12=0[/tex]Now you need to factorise your expressionYou need to find two numbers that multiply together to make 12, and ad together to make -7These two numbers are -3 and -4Your new equation is:[tex](x-3)(x-4)=0[/tex]For this equation to equal 0, just one of x - 6 and x - 1 has to equal 0For x - 3 to equal 0, x has to be 3For x - 4 to equal 0, x has to be 4x = 3 or 4
Yore answer here is 4 ….

1) For what values is the statement true? sin(x+20)°=cos(y−10


x=20, y=60


x=20, y=50


x=30, y=40


x=30, y=60


2)In right triangle ABC with right angle C, sinA=4/5 and cosA=3/5. What is sinB+cosB?


1/5


7/5


35/12


5/7


3)In a right triangle ABC where sinA=cosB, what are the measures of acute angles A and B if the measure of angle A is three times the measure of angle B?


The measure of angle A is 67. 5° and the measure of angle B is 22. 5°.


The measure of angle B is 135° and the measure of angle A is 45°.


The measure of angle A is 135° and the measure of angle B is 45°.


The measure of angle B is 67. 5° and the measure of angle A is 22. 5°.


4)What is the value of b that makes the equation cos(17b+26)°=sin(15b)° true?


13


2


9. 5


3

Answers

Answer:

1) X =20° ,Y=60°

2) 7/5

3) first is correct

4) 2

Look at this set of ordered pairs:
(8,8)
(8, 12)
(17, -12)
Is this relation a function?

Answers

i think it is not maybe i’m wrong

The radius of a circle is 4 m. Find its area to the nearest whole number.

Answers

Answer:

16π or around 50.26

Step-by-step explanation:

A=πr²

A=π(4)²

A=16π

A=16(3.1415926)

A=50.26

I think it’s A≈50.27m²

8x-1<2x+5
If x is a number greater than zero that satisfies the inequality above, what is one possible value of x?

Answers

Step-by-step explanation:

There is no number greater than zero that satisfy the above inequality

but if the sign is less than or equal to 1 will work

Answer:

0 < x < 1

any fraction bigger than zero and less than 1.

Step-by-step explanation:

8x - 1 < 2x + 5

Subtract 2x

6x - 1 < 5

Add 1.

6x < 6

Divide by 6.

x < 1

They are asking for a number bigger than zero. But 1 does not work because the answer has to be less than one. Pick any fraction between zero and one.

Eduardo has a recipe that uses 2/3 cup of flour for each batch. If he makes 4 batches, how many cups of flour will he need? How many cups of flour will he need in total if he makes 3 more batches?

Answers

Answer:

4 batches: [tex]2\frac{2}{3}[/tex] cups

7 batches: [tex]4\frac{2}{3}[/tex] cups

Step-by-step explanation:

If he uses 2/3 cup of flour for each batch, then that is 2/3 four times, or 2/3 · 4.

[tex]\frac{2}{3}[/tex] × [tex]\frac{4}{1}[/tex]

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

If he makes three more, than that will be 7 batches in total. We can multiply 2/3 by 3 to find out how much will be needed for those extra three, then add that product to [tex]2\frac{2}{3}[/tex].

[tex]\frac{2}{3}[/tex] × [tex]\frac{3}{1}[/tex]

= [tex]\frac{6}{3}[/tex]  = 2

[tex]2\frac{2}{3} +2[/tex]  = [tex]4\frac{2}{3}[/tex]

Thus, [tex]2\frac{2}{3}[/tex] and [tex]4\frac{2}{3}[/tex] are the answers.

hope this helps!

Select all of the equations that are equivalent to 4x+20=90

1. 4(x+5)=90

2. x+5=22.5

3. 4(x+20)=90

4. x+20=22.5

5. 4x=70





pls pls tell me

Answers

Answer:

The answer is num 1 I think, 4(x+5)=90

5. Find the length of the highlighted arc from A to B

Answers

Answer: 9.4 cm

Step-by-step explanation:

formula is

2 pie r (m/360)

Other Questions
Demonstrate how you will use Newtons law to determine the gravitational force between the sun and any other planet and to explain why a planets speed changes with distance.What evidence from the video supports this claim? (Earth Science) A shopkeeper bought 30 pens for 150 and sold 20 of them for 140. Find his profit or loss percentage Infants born to mothers with a prepregnancy BMI of 25 or higher are ______ to experience health problems compared to infants born to mothers of BMI in the range of 18.5 - 24.9. Please help me and you will get the brainiest answer. The fact that the astrolabe was developed in the Muslim empire implies thatEuropeans had more advanced technology.Europeans did not make use of new knowledge.the Muslim empire was technologically advanced.the world outside of Europe was undeveloped. The us consumes almost _______ of timber annually. a. 5 million cubic feet b. 20 billion cubic feet c. 40 billion cubic yards d. 30 million cubic yards please select the best answer from the choices provided a b c d im sorry i just suck i need help again pllsssssssssssss 8. Il An 8.00 kg package in a mail-sorting room slides 2.00 m down achute that is inclined at 53.0 below the horizontal. The coefficient okinetic friction between the package and the chute's surface is 0.40.Calculate the work done on the package by (a) friction, (b) gravity, and(c) the normal force. (d) What is the net work done on the package? One way to protect against a security threat to a computer system is to __________. Avoid external links with inconsistent URLs create a disaster recovery plan open online pop-up notifications post personal information online Nikkita sold her old textbooks for $54 a piece. When she was done, she had $324, but she still had 8 textbooks left. How many textbooks did she start with? Simplify.2v^67u^7u^-5xv^-35xUse only positive exponents in your answer. 4x + 9y - 9 = 0y intercept = 1. What did Harvey Milk have in common with otherAmerican civil rights leaders?a. Focused primariy on racial discriminationb. Organized local protests to fight injusticec. Marched with supporters in Washington, D.Cd. Served prison time for defying unfair laws The woman pushes on the door. If her force is the action force, which of these describes the reaction force?A. The door pushes back on her handB. The door pushes forwardC. The door pushes against the wallD. The door is pulled downward by gravity Please answer this Im struggling rn :( most major organs receive blood from the branches of the aortic vein true or false The Asian long-homed beetle can infect a variety of tress such as maple trees and elm trees. These beetles eat the inside of aninfected tree and destroy the pathways that water and nutrients travel through to get from the roots to the rest of the tree. This resultsin the tree becoming sick and eventually dying.A cargo ship canying Asian long-homed beetles introduces the species into a region where the beetles were not previously presentThis region has a diverse population of maple and elm trees. How will humans in the area likely be impacted?OA. The housing industry will be negatively impacted due to an increase in lumber costs.OB. The maple syrup industry will be negatively impacted due to a decrease in the maple populationOC. The lumber industry will be negatively impacted due to a decrease in available resources.OD. all of HURRY Why do you think scientists use all three kinds of evidence (embryonic, anatomic, and genetic) to determine relationships between organisms to see if ducks and platypus are related. What is the length of side PQ in this figure? Please help me with this :)))))If