Is this correct and if not how do I solve quickkkkkk!!!!!

Is This Correct And If Not How Do I Solve Quickkkkkk!!!!!

Answers

Answer 1

Answer:

29 m

Step-by-step explanation:

The dashes mean that the lines are equal in length, so from this we can determine that the area marked 441 m² is a square.  

Area of a square = x², where x is the length of 1 side.  

Therefore, x = √441 = 21 m

Now we have a right-angled triangle with two legs of 20 m and 21 m.  We need to find the hypotenuse (labelled ?).  To do this, use Pythagoras' Theorem a² + b² = c², where a and b are the legs and c is the hypotenuse.

Therefore,

    20² + 21² = c²

⇒ 400 + 441 = c²

⇒            841 = c²

⇒               c = √841

⇒               c = 29

So the side marked ? on the diagram is 29

Answer 2

Answer:

answer is 29

Step-by-step explanation:

since the area of the square is 441 we know each side measure is [tex]\sqrt{441}[/tex] which is 21

since this is a right triangle and we know the value of two sides we can use the Pythagorean Theorem to find the third side, in this case the 'hypotenuse'

theorem states that the sum of the legs, squared, equals the hypotenuse squared

20² + 21² = x²

400 + 441 = x²

x² = 841

x = [tex]\sqrt{841}[/tex] which is 29


Related Questions

a. 3
b. 4
c. 6
d. 8

Answers

Answer:

D. x = 8

Explanation:

Triangle ACD is an enlarged triangle of Triangle ABE

so an equation can be formed to solve this:

[tex]\frac{3x}{30}[/tex] = [tex]\frac{48}{30+30}[/tex]

[tex]\frac{3x}{30}[/tex] = [tex]\frac{48}{60}[/tex]

3x * 60 = 48 * 30

180x = 1440

x = 1440 ÷ 180

x = 8

Triangle ACD is an enlarged triangle of Triangle ABE

so an equation can be formed to solve this:

[tex]\frac{3x}{30} = \frac{48}{30 + 30} [/tex]

[tex] \frac{3x}{30} = \frac{48}{60} [/tex]

[tex] \frac{3x}{60} = \frac{48}{30} [/tex]

[tex]180x = 1440[/tex]

[tex]x = \frac{1440}{180} [/tex]

[tex]x = 8[/tex]

Question 4 of 9
(7-1) + 8 = 7 - (1 + 8)
O A. True
O B. False

Answers

Answer:

B. False

Step-by-step explanation:

(7-1) + 8 = 7 - (1 + 8) is not true.

Parenthesis

Exponents

Multiply

Divide

Add

Subtract

In this case, we only need parenthesis and addition.

(7-1)+8

(6)+8

14

7-(1+8)

7-(9)

-2

14=-2 is not true.

Hope this helps :)

the answer is false

f over 2 = 5 over 8 what does f equal?

Answers

Answer:  F=5/4

Step-by-step explanation:

21 - 3 + 18 ÷ 6 =
7 x 9 - 3 x 4 + 10 =

Answers

Answer:

21 - 3 + 18 ÷ 6 = 21

7 x 9 - 3 x 4 + 10 = 61

Step-by-step explanation:

Solve x∕10 = –7.
Question 7 options:

A)

x= –17

B)

x = 3

C)

x = –0.7

D)

x = –70

Answers

Answer:

D) x = -70

Step-by-step explanation:

You can do the opposite to find out what x equals. The opposite of division is multiplication. So, -7 · 10 = -70.

Check your answer by plugging in -70 for x. So -70/10 = -7. This is correct which means x = -70

D) x = 70

10 (x/10) = -7 (10)
Multiply 10 on both sides.

x = -70

Roots thru Rational Numbers Summative


HELPPPPP
question: 18

Answers

Answer:

so A is right

B is 121/140 bc 121 of 140

C is 11.83( ^2) bc it´s the closest thing to √140

Step-by-step explanation:


Tom descended 1500 feet in his airplane. He then ascended 2500 feet and remained at that altitude. If the initial altitude was 20,000 feet, what is Tom's altitude now?

Answers

tom’s altitude is now 21,000 feet.

20,000 - 1,500 = 18,500
18,500 + 2,500 = 21,000

Solove for x 3/2+1/2x=2x

Answers

Answer:

x = 1

Step-by-step explanation:

Step 1: Subtract 2x from both sides.

[tex]\frac{1}{2}x + \frac{3}{2} -2x = 2x - 2x[/tex] [tex]-\frac{3}{2}x + \frac{3}{2} = 0[/tex]

Step 2: Subtract 3/2 from both sides.

[tex]-\frac{3}{2}x + \frac{3}{2} - \frac{3}{2} = 0 - \frac{3}{2}[/tex] [tex]-\frac{3}{2}x = -\frac{3}{2}[/tex]

Step 3: Multiply both sides by -2/3.

[tex]-\frac{3}{2}x * -\frac{2}{3} = -\frac{3}{2} *- \frac{2}{3}[/tex] [tex]x = 1[/tex]

Step 4: Check if solution is correct.

[tex]\frac{3}{2} + \frac{1}{2}(1) = 2(1)[/tex] [tex]\frac{3}{2} + \frac{1}{2} = 2[/tex] [tex]\frac{4}{2} = 2[/tex] [tex]2 = 2[/tex]

Therefore, x = 1.

Have a lovely rest of your day/night, and good luck with your assignments! ♡

How many ninths are there in 9 wholes ​

Answers

Answer:

81 ninths in 9 wholes

Step-by-step explanation:

Each whole has 9 ninths (9/9 = 1).  So 9 wholes would be:

9*(9/9) = 81/9

Eighty 0ne ninths in 9 wholes

Solve the two-step equation. 0. 45x 0. 33 = -0. 66 What is the solution? x = -2. 2 x = -1. 4 x = 1. 4 x = 2. 2.

Answers

The value of x is -2.2.

Linear system

It is a system of an equation in which the highest power of the variable is always 1. A one-dimension figure that has no width. It is a combination of infinite points side by side.

Simplification

Simplification is to make something easier to do or understand and to make something less complicated.

Given

The linear equation 0.45x + 0.33 = -0.66

To find

The value of x.

How to find the value of x?

The linear equation 0.45x + 0.33 = -0.66 is given.

Then by simplification,

0.45x + 0.33 = -0.66

          0.45x = -0.66 - 0.33

          0.45x = -0.99

                  x = -2.2

Thus the value of x is -2.2.

More about the linear system link is given below.

https://brainly.com/question/20379472

Solve for y: √−53= √27−3−14

Answers

Step-by-step explanation:

hope it will help you..........

If your buying school supplies, and you buy 8 notebooks for $12.48, How much do you pay for 1 notebook?

Answers

Answer:

The answer is $1.56

Step-by-step explanation:

12.48÷8 = 1.56

What is the nth term of the linear sequence shown below? -9, -5, -1, 3, 7.

Answers

Answer:

4n - 13

Step-by-step explanation:

There's a +4 between each number in the sequence.

4n

The previous number before the first given (-9) is -13.

4n - 13

Sandy spun a spinner with 5 equal parts labeled 1-5. If she spins the spinner 20 times, how many times should she expect to spin a 2

Answers

Answer:

4 times

Step-by-step explanation:

[] If the spinner has 5 equal parts labeled 1 through 5, then the chance to spin a 2 is 1/5 because only one of the pieces has a 2.

[] Our whole is 20 because the spinner is spun 20 times

20 * 1/5 = 4

[] Sandy can expect to spin a 2 4 times.

Have a nice day!

     I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly.

- Heather

show work giving BRAINLY if correct​

Answers

Answer:

A. Kaitlyn uses more cups of flour per cookie.

Step-by-step explanation:

Kaitlyn's

[tex]2\frac{1}{2}[/tex] cups of flour---> [tex]3\frac{1}{2}[/tex] cookies

1 cups of flour--> [tex]3\frac{1}{2}[/tex] / [tex]2\frac{1}{2}[/tex] = 1.4 cookies.

Megan's

[tex]1\frac{3}{4}[/tex] cups of flour---> [tex]2\frac{11}{12}[/tex]

1 cups of flour---> [tex]2\frac{11}{12} / 1\frac{3}{4}[/tex] = 1.67 cookies

Therefore, Kaitlyn uses more cups of flour per cookie.

a recipe for cookies calls for 2/3 of a cup of sugar per batch. elena used 6 2/3 cups of sugar to make multiple bathes did she make

Answers

Answer:

Elena made 10 batches.

Step-by-step explanation:

1 batch uses 2/3 cup

Elena used 6 2/3 cup

The number of batches is the quotient of 6 2/3 and 2/3.

We need to divide 6 2/3 by 2/3. First, we convert 6 2/3 into a fraction.

6 2/3 ÷ 2/3 = 20/3 ÷ 2/3 = 20/3 × 3/2 = 10

Answer: Elena made 10 batches.

Answer:

10

Step-by-step explanation:

2/3 for 1 cup if he used 6 2/3 of sugar then its 10.

if you times 2/3 by 10 its 6.66 and 6.66 is 2/3

1/3=33

2/3=66

3/3=100

Five squares are positioned as shown. The small square indicated has area 1 . What is the value of h?

Answers

Answer:

4

Step-by-step explanation:

Each box is 1 larger than the earlier one, so the boxes are 1, 2, 3, 4, and 5.

4 + 5 is the width across the bottom

2 + 3 is the width across the top (not counting h)

9 - 5 = 4, so h = 4

The value of h is 4. Hence, Option C is the best choice.

Found using the area of the given square.

What is the area of a square?

The area of a square is the square of its sides.

If a represents the side of the square, then its area is a².

How to solve the given question?

In the question, we are given five squares positioned as shown in the figure. The smallest square has an area of 1.

We are asked to find the value of h.

Now, the square of area 1, will have sides of length √1 = 1.

The second square, just greater than this, is nearly 1.5 times this square.

Hence the side of that square = 1.5*1 = 1.

The third square has a side equal to the sum of the side of these two squares. Hence, its side = 1 + 1.5 = 2.5.

The fourth square has a side equal to the sum of the third and the first square. Hence, its side = 2.5 + 1 = 3.5.

The fifth square has a side equal to the sum of the fourth and the first square. Hence, its side = 3.5 + 1 = 4.5.

Now, h = length of the fifth square - (length of the second square - length of the first square),

or, h = 4.5 - (1.5 - 1) = 4.5 - 0.5 = 4.

Hence, the value of h is 4. Hence, Option C is the best choice.

Found using the area of the given square.

Learn more about the area of squares at

https://brainly.com/question/24487155

#SPJ2

Write a scenario that could be represented by this equation: 3/4x = 12

Answers

Answer:

x=1 or x=16

Step-by-step explanation:

3/4x = 12      or        0.75x = 12

3/4x/3/4 = 12/3/4     or     0.75x/0.75 = 12/0.75

x=12/1 / 3/4

x= 4/4

x = 1                           or       x = 16

true or false: The range for an exponential function includes all real numbers.

Answers

False, The range for an exponential function does not include all real numbers but only real numbers greater than zero.

What is exponential function?

In mathematics, an exponential function is a function of form f (x) = aˣ, where “x” is a variable and “a” is a constant which is called the base of the function and it should be greater than 0.

Given statement,

The range for an exponential function includes all real numbers.

By the definition,

Exponential functions have the general form y = f (x) = aˣ,

where a > 0, a≠1, and x is any real number.

The reason a > 0 is that if it is negative, the function is undefined for -1 < x < 1. Restricting a to positive values allows the function to have a domain of all real numbers.

Thus the range is all real numbers greater than zero.

Hence, The range for an exponential function includes all real numbers is False because it includes real numbers greater than zero.

Learn more about exponential function here:

https://brainly.com/question/15352175

#SPJ2

Plz helppp

Use Distributive Property to Solve for x

4 (x + 3)=8

Answers

4x+12=8 that’s because you would distribute what’s outside and multiply it by what’s inside. Basically, 4 times x= 4x and 4x3=12 giving you the equation 4x+12=8 once you’ve set the equation subtract 12 from 8 because you have to do the opposite in order to cancel out 12…so then you get 4x=-4 then you divide the 4 from 4x and leave the x. This makes you divide 4 with the other -4 which is -1 bc one negative divided by a positive is a negative this why your answer is /////>>>> -1

help solve for x pleas​

Answers

Answer:

360_(26+180+90) =64

Step-by-step explanation:

the measure of straight line is 180

and the sum of all angles is 360

Find the Volume. 7 1/5ft 4 1/2ft 3ft​

Answers

Answer:

97 1/5 cubed ft. or 97.2 cubed ft.

Step-by-step explanation:

7 1/5=7.2

4 1/5=4.5

3=3

7.2x4.5x3=97.2=97 1/2

Answer:

[tex]V = 97.2\ ft^3[/tex]

Step-by-step explanation:

Step 1:  Determine the volume

[tex]V = l * w * h[/tex]

[tex]V = 4.5\ ft * 3\ ft * 7.2\ ft[/tex]

[tex]V = 97.2\ ft^3[/tex]

Answer:  [tex]V = 97.2\ ft^3[/tex]

can anyone help me with this? i dont understand it, thank you

Answers

Answer:

15j^2k^2+10jk^2

Step-by-step explanation:

You distribute the term 5jk to the terms inside parentheses.

5jk(3jk) = 15j^2k^2

5jk(2k) = 10jk^2

Now put in original form:
15j^2k^2+10jk^2

Divide 63 in the ratio 5:4=​

Answers

Answer:

35:28

Step-by-step explanation:

answer attached

hope this helps!

what is the value of the expression 6/7 divided by 3/4

Answers

The answer is 8/7. 6/7 divided by 3/4 = 6/7 x 4/3. 6/7 x 4/3 = 24/21 = 8/7

–3х - 7y = 8
3х - 2y = 44

Answers

Answer:

One solution

Kind Note:

This question is incomplete. You need to provide the question in order to get the best answer on brainly. In this answer, I will tell you how many solutions are in this system of equations.

Step-by-step explanation:

This question involves the use of 'system of equations'.

=> -3x - 7y = 8

             3x - 2y = 44

=> (-3x + 3x) + (-7y - 2y) = (8 + 44)=> -9y = 52=> y = -52/9 (No further check required)

Since the y-intercept is valid, the system of equations has one solution.

Hence, this system of equations has one solution.

Hoped this helped!

Let's solve graphically.

-3x-7y=83x-2y=44

Graph attached

Find the area of a circle with : (vi) circumfernece = 66 cm

Answers

Answer:

7.07 cm

Step-by-step explanation:

we know,

circumference = 2πr

so,

2 × 22/7 × r = 66

44r = 66×7 = 462

r = 462/44 = 1.5

therefore, radius of the circle is 1.5 cm.

now,

we know , area = πr²

so,

22/7 × (1.5)²

22/7 × 2.25

49.5/7

7.07 cm (approx)

therefore, area of the circle is 7.07 cm (approx.)

hope this answer helps you!

what is 5/6 × 4/9? I'm a little confused

Answers

Answer:

10/27

Step-by-step explanation:

5/6 * 4/9 = 20/ 54 = 10/27

What is a/5+3=8 and what does a=?

Answers

Answer:

a=25

Step-by-step explanation:

Solve by subtracting 3 from both sides.

a/5=5

Multiply both sides by 5.

a=25

Answer:

a=25

Step-by-step explanation:

a/5+3=8

Subtract 3 from both sides:

a/5+3 -3=8 -3

a/5=5

Multiply both sides by 5:

a/5=5×5

a=25

Hope it helps!

I think of a number and halve it. The answer is two hundred and sixty. What number did I start with?

Answers

Let the number be x

Now we have a equation,

X÷2=260

x=260×2

x=520

Hence, the number you started with was 520.

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