please helppp
Prove that:​

Answer:

92

Step-by-step explanation:

Answer:

52.5

Step-by-step explanation:

Answer:

[tex]thats \: the \: answer \: pls \: brainliest[/tex]

Step-by-step explanation:

happy to help u

pls mark me as brainlist

Answer:

x=5;y=12

Step-by-step explanation:

Hope this answer helps you

Answer:

1st option

Step-by-step explanation:

the figure is a kite

the horizontal diagonal bisects the vertical diagonal , then

x = 5

The diagonals are perpendicular , so using Pythagoras' identity

x² + y² = 13²

5² + y² = 13²

25 + y² = 169 ( subtract 25 from both sides )

y² = 144 ( take square root of both sides )

y = [tex]\sqrt{144}[/tex] = 12

Answer:

it is IH - 110 ft

Step-by-step explanation:

The plane height is down 110 feet from its initial height.

Subtraction is mathematic operation. Which is used to remove terms or objects in expression.

Let x be the initial height of the plane.

Then according to question;

if drop down means height in negative term and rise up means height in the positive term.

Then,

the height is

= x -300-180+240+130

= x-110

Therefore, down 110 feet is the height of the plane now relative to its initial height.

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Answer:

if 4:5:3=84 you start by adding (4+5+3=9)....so 9 equals to 84 what about (4) cross multiply....you will 4=28 .....if 9 =84 what about 5 cross multiply.....you will get 35....if 9 =84 what about 3

cross multiply.....you will get 21 so the numbers are.

4=38

5=35

3=21

Answer:

33

Step-by-step explanation:

(

5

−

√

x

)

2

=

5

2

−

(

2

×

5

×

√

x

)

+

x

=

25

−

10

√

x

+

x

=

(

x

+

25

)

−

10

√

x

In order to eliminate the irrational

−

20

√

2

term with

x

and

y

being integers, we must have:

−

10

√

x

=

−

20

√

2

Divide both sides by

−

10

to get:

√

x

=

2

√

2

So

x

=

(

2

√

2

)

2

=

8

y

=

x

+

25

=

8

+

25

=

33

Answer:

D

Step-by-step explanation:

As stated elsewhere, two conditions must be met.

Answers A B and C all meet these 2 conditions. It is only D that gives you the problem.

It adds to 181 which is not 180. 180 is written in stone, A triangle cannot have 179 degrees, nor can it have 181 degrees.

It must have 180.

D has 181 degrees. It cannot be a triangle.

Answer:

Exact: 9.42

Approx: 9

Step-by-step explanation:

The area of a circle is pi*radius^2 (pi=3.14 r=radius ^2= power of 2/squared)

The diameter is two times the radius. So, we need to divide the diameter by two for the first step of solving this.

6/2=3

Now, we know the radius is 3.

Let's square it:

3^2= 3*3

3*3=9

Now, the last step is to multiply it by pi (3.14)
3.14*3=9.42

There we go! The area is 9.42 feet!

Answer:

x(x - 2)² (2x + 1)

Step-by-step explanation:

x³ - 4x² + 4x

x (x² - 4x + 4)

x (x - 2) (x -2) or x (x - 2)²

2x² - 3x - 2

(2x² - 4x) ( 1x - 2 )

2x( x - 2) +1 (x - 2)

(2x + 1) (x - 2)

I hope this helps!

Answer:

Step-by-step explanation:

Answer: A B E F

Step-by-step explanation:

i’m pretty sure it’s right

Answer:

x = 3, x = 1

Step-by-step explanation:

Okay, let's set the equation = 0:

3x^2 -12x + 9 = 0

Then, we factorise. To do this, we have to find 2 numbers which have a product of 9 and add up to -12. There are a few ways to do this, but a simple try and error is the easier when using numbers which don't have many factors. So here we know that to get a product of 9, there are only 2 options: 9*1 and 3*3. Now we have to figure out which of these add up to -12. But to do this, we have to take into account the 3, from the x^2 coefficient. This allows to know that the numbers will be 9*1. Then we just need to change the signs to make it work. This would give: -9*-1 (with 3*-1).

The fully factorised equation would be (3x-9)(x-1). Following this, you can always expand it quickly, to check that it really works correctly.

Now let's solve. (3x-9)(x-1) = 0

We say that when two numbers multiplied by each other equal to zero, one of them has to be zero. So if (3x - 9) was equal to 0:

3x - 9 = 0

3x = 9

x = 9/3

x = 3/1

x = 3

Now for the other:

x - 1 = 0

x = 1

Answer:

6 quarters and 6 dimes

Step-by-step explanation:

since there is 6 quarters it would be 6x$.25 which is $1.50, and each dime is worth 10 cents so 6x$.10 is $.60, and $1.50+$.60=$2.10

Answer:

i guess there is no difference even if u bought two 10 inch pizza which would totally cost $22 and one 20 inch pizza which is also $22.....

I guess the only problem would be you had to two pizza for the first where as for the second one u would hold one which would be easier....

Step-by-step explanation:

Hope it helps!!!

Answer:

24 Minutes

Find 60 percent of 40.

Percent means over 100

,so 60% = 60/100 or 0.6

Multiply that by 40 to find 60% of it:

40 * 0.6 = 24

A Samantha spent percent 24 minutes on language arts out of the 40 minutes dedicated to her homework.

To find the number of minutes Samantha spent on language arts,  to calculate 60% of the total time  spent on homework.

Samantha spent a total of 40 minutes on homework.

To find 60% of 40 minutes, multiply 40 by 0.60 (since 60% is equivalent to 0.60):

60% of 40 = 0.60 × 40 = 24 minutes

Therefore, Samantha spent 24 minutes on language arts.

Regarding the 2-column table provided, it appears to be unrelated to the problem and does not directly provide information about Samantha's homework time. It contains entries for "Time Spent" in percentages and corresponding minutes, but these percentages and minutes do not seem to relate to the given problem.

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Which data best supports the scientist’s decision to issue the warning?

D) Reservoirs and lake levels continue to drop significantly.

Answer:

slay

Step-by-step explanation:

Answer:

(x) = 4

Step-by-step explanation:

 3/4 (x) + 4 = 7

 3/4 (4) + 4 = 7

0.75 (4) + 4 = 7

          3 + 4 = 7

                7 = 7

Answer:

x + 8 = 20

Step-by-step explanation:

Using the keywords;

'more than' (addition)

'a number' which we can consider a variable

and 'equals'

Answer: 8 + x =20

Step-by-step explanation: eight more than a number means 8 more than meaning plus, a number. So this is saying that 8 more than what ever that number is, will equal 20. We say x in the equation because x can be see as “the number”.

x = “the number” = 12

This is because 8 more than 12 is 20...

So 8 more than a number = 8 + x = 20

Answer:

An example would be: Do you like cats or dogs more?

Step-by-step explanation:

The example for the biased survey question is : How awesome is the product?

A survey question is biased if it is phrased or formatted in a way that skews people towards a certain answer.

The question : - How awesome is the product?

The Fixed: How would you rate this product?

The examples of biased survey questions listed above contains a judgment, implying that the product is “awesome,” The corrected phrasing, on the other hand, is more objective, and contains no insinuations.

Hence, the example for the biased survey question is : How awesome is the product?

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Answer:

Step-by-step explanation:

The value that is equal to the average rate of change of the function over the interval is equal is 1 m/s

Given the position of the object expressed as:

y = -t^2 + 3t - 4

In order to calculate the value that is equal to the average rate of change of the function over the interval (0, -4) and (2, -2), we will determine the slope of these two coordinates as shown;

Rate of change = -2-(-4)/2-0
Rate of change = -2+4/2
Rate of change = 2/2

Rate of change = 1 m/s

Hence the value that is equal to the average rate of change of the function over the interval is equal is 1 m/s

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Answer:

its true

Step-by-step explanation:

[tex]\frac{2}{5} * \frac{10}{1}=\frac{20}{5}[/tex]
[tex]\frac{20}{5} = \frac{4}{1} = 4[/tex]

have a good day.

Answer:

True.

Step-by-step explanation:

Note the equal sign, what you do to one side, you do to the other. Multiply the reciprocal of the fraction to both sides to isolate the variable, v.

The reciprocal in math is described as the quantity that is multiplied that will result in 1. In this case, you will multiply 5/2 to both sides of the equation:

[tex]\frac{2}{5}v = 4\\ \\(\frac{5}{2})\frac{2}{5}v = 4 * (\frac{5}{2})\\[/tex]

[tex]v = \frac{4 * 5}{2} = \frac{20}{2} = 10\\ v = 10[/tex] (True).

In this case, v = 10 will work to solve the given equation, and so it is true.

~

[tex]7 > -2\\7 -7 > -2-7\\0 > -9[/tex]

Hope that helped!

Answer:

346.36

Step-by-step explanation:

C=piD

so the21 is theD

A=piR^2

R=D/2(1/2D)

A=22/7×21/2^2=346.36

53.55 / 85 = 0.63

0.63 * 100 = 63

63 - 38 = 25

watch was 25 before discount

Answer:

Step-by-step explanation:

PART A

Answer: no they will not be the same

PART B

Which cab driver's charge will be less for a ride that is 10 miles in distance?

Madeline's is cheaper

Bert's cab company costs $31 and Madeline's cab company costs $23

Answer:

c) 98

Step-by-step explanation:

let the number be x

x/-7 = -14

=> x= -14*-7

=> x = 98

By knowing how to use positive numbers and negative numbers, we will see that the answers are:

By standard notation, if May wins money, then we represent this with a positive number.

While if she pays or has a debt, we represent the change with a negative number (because now she has less money than before).

A) She receives $25, so the change is:

C = $25

B) She earns $14, so the change is:

C = $14

C) She spends $10, so now she has $10 less than before, the change is:

C = -$10

D) She donated $3, so the change is:

C = -$3

E) She gots $2, then the change is:

C = $2.

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