Can somebody help me

Answer:

Step-by-step explanation:

you want to use PEMDAS which is parenthesis exponents multiplication division addition subtraction and work your way from left to right. so 15+42=57 and then 24-9=15 and 81-15=66 hope this helped :)

Answer:

Step-by-step explanation:

7.4×10^(-8) - 6.7×10^(-9) = 6.73×10^-8 is 9.05405% smaller than 7.4×10^(-8) = 7.4×10^-8

Answer:

-8

Step-by-step explanation:

THANKS

Answer:

round

Step-by-step explanation:

hope I helped

Answer:

its B

Step-by-step explanation:

Answer:

  1110.0 units

Step-by-step explanation:

The balance reading is the sum of the readings on each of the scales:

  100 +1000 +10 = 1110 . . .  units

Expressed to the nearest tenth, this is ...

  1110.0 units

(No units are shown on the balance scale, so we don't know if this is micrograms or tons or something in between.)

Answer:

102 sq. ft.

Step-by-step explanation:

In order to find the side lengths, we divide 1604 by 2. Since it's a square, each side is the same length. Area is length times width so we only need two sides.

1604÷2=102

*the box plots are shown in the attachment below.

Answer:

The median hours spent in the weight room for school 1 is less than the median for school 2 and the interquartile ranges for both.

Step-by-step explanation:

Median on a box plot is depicted by the vertical line that divides the rectangular box into 2.

The median hours for school 1 = 8

The median hours for school = 9

Interquartile range on a box plot is the range of the rectangular box.

Interquartile range for school 1 = 10 - 4 = 6

Interquartile range for school 2 = 12 - 6 = 6

Therefore, it is true that the median hours spent by school 1 (8 hrs) is less than the median hours spent by school 2 (9 hours).

It is also true that the jnterquartile range for school 1 and school tok are also equal (6).

Scale factor 1.25 is an expansion since we 'enlarge' the original size 1.25 times

Scale factor 3 is an expansion since we 'enlarge' the original size by 3 times

Scale factor -2 is also an expansion since we 'enlarge' the original size by 2 times but on the opposite direction of the centre of enlargement

Scale factor 3/4 is a contraction since we make the original size 'smaller' by 0.75 times

Scale factor 1/5 is also a contraction since we make the original size 'smaller' by 0.20 times

Literally, contraction means to reduce; while expansion means to increase.

The following absolute value inequalities are used to determine if a scale factor (k) is an expansion or a contraction.

So, we have:

The absolute value of 1.25, -2 and 3 are greater than 1. i.e.

[tex]|1.25| > 1[/tex]

Remove absolute brackets

[tex]1.25 > 1[/tex]

[tex]|-2| > 1[/tex]

Remove absolute brackets

[tex]2 > 1[/tex]

[tex]|3| > 1[/tex]

Remove absolute brackets

[tex]3 > 1[/tex]

Hence, 1.25, -2 and 3 are all expansion scale ratios

The absolute value of 3/4 and 1/5 are between 0 and 1. i.e.

[tex]0 > |3/4| > 1[/tex]

[tex]0 > |0.75 | > 1[/tex]

Remove absolute brackets

[tex]0 > 0.75 > 1[/tex]

[tex]0 > |1/5| > 1[/tex]

[tex]0 > |0.2| > 1[/tex]

Remove absolute brackets

[tex]0 > 0.2 > 1[/tex]

Hence, 3/4 and 1/5 are all contraction scale ratios

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Hey there! I'm happy to help!

We have twice the number.

2n

We want the sum of that and 13. Sum means to add.

2n+13

And this is 75.

Equation: 2n+13=75

We subtract 13 from both sides.

2n=62

We divide both sides by 2.

n=31

Have a wonderful day! :D

An equation is formed of two equal expressions. The value of n is 31.

An equation is formed when two equal expressions are equated together with the help of an equal sign '='.

Given the sum of twice a number and 13 is 75. Therefore, the equation for this situation can be written as,

[tex]2n+13 = 75[/tex]

Solving the above equation for n we will get,

[tex]2n+13 = 75\\\\2n = 75 -13\\\\2n= 62\\\\n = \dfrac{62}{2} \\\\n= 31[/tex]

Hence, the value of n is 31.

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Answer: 78

Step-by-step explanation:

Answer:

78

Step-by-step explanation:

Answer:

p = q/5 - 9r/5

Step-by-step explanation:

Step 1: Write equation

5p + 9r = q

Step 2: Solve for p

Subtract 9r on both sides: 5p = q - 9r

Divide both sides by 5: p = q/5 - 9r/5

Answer:

x=5.3

Step-by-step explanation:

.3(5x-1.5)=7.5

1.5x-.45=7.5

1.5x=7.95

x=5.3

Answer:

378 Miles

Step-by-step explanation:

40.5 / 3 = 13.5

13.5 * 28 = 378

Answer:

hope this helped you

please mark as the brainliest (ㆁωㆁ)

Answer:

21 ft 9 in yards is 7.3 in inches it's 262.8

Answer:

no he did not

Step-by-step explanation:

well if everyone wanted 14 pieces but he has 13 friends + him if they wanted 14 pieces they would need 182 pieces of

Answer:

the domain of the relation is C

The domain of the given graph is -4≤x≤6. Therefore, the correct answer is option C.

From the given graph, extremes of line graph are (6, 4) and (-4, -4).

The domain and range are defined for a relation and they are the sets of all the x-coordinates and all the y-coordinates of ordered pairs respectively.

Here, the domain of the graph is -4≤x≤6

The range of the graph is -4≤x≤4

Therefore, the correct answer is option C.

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Answer:

241

Step-by-step explanation:

6⋅3−^2 −3^4 ⋅9+4^0

256-10-15/3

=256-10-5        

=246-5

=241

Answer:

AB = 18

Step-by-step explanation: AB = BC

                      4x -2 = 3x + 3... subtract 3x and add 2

                      1x = 5.. divide both sides by 1 and x= 5

                                       plug x into 4x -2

                                           4(5) -2 = 18

The measure of length AB, If AB = BC, AB = 4x -2, and BC = 3x + 3, then AB is 18.

A line segment is a straight line with finite length, and thus, have to endpoints(points on either ends).

We have been given that AB = BC,  AB = 4x -2, and BC = 3x + 3, then we need to find the length of AB.

Therefore,

AB = BC

Now substitute the given parameters;

AB = BC

4x -2 = 3x + 3

Then subtract 3x both the sides and add 2;

1x = 5

Then divide both sides by 1

x= 5

Now plug x into 4x -2

AB = 4x -2

AB =  4(5) -2 = 18

AB = 18

Hence, The measure of length AB, If AB = BC, AB = 4x -2, and BC = 3x + 3, then AB is 18.

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Answer:

a+b= 12, a = b+8

Step-by-step explanation:

We know that a plus b equals 12 a+b=12

The only other thing we know is that a is 8 more than b so a=b+8

Answer:

If a number is a multiple of 2, it may NOT be a multiple of 4. An example would be the number 6.

[tex]6\div2=3[/tex], but [tex]6\div4=1.5[/tex].

However, if a number is multiple of 4, it is guaranteed to be a multiple of 2, since 4 itself is a multiple of 2.

Example:

[tex]8\div4=2[/tex]

This is simply

[tex]8\div2\div2=2[/tex].

It is a multiple of 2 twice.

Answer:

A store sells six-packs of soda for $3.00 a six pack. If this relationship is graphed with the number of cans of soda on the x-axis and the cost on the y-axis, what is the slope of the graph in dollars per can?

Step-by-step explanation:

Answer:

[tex](x-3)^2=5[/tex]

Step-by-step explanation:

[tex]x^2-4x+4=2x[/tex]

[tex]x^2-4x+4-2x=2x-2x[/tex]

[tex]x^2-6x+4=0[/tex]

[tex]x^2-6x=-4[/tex]

[tex]x^2-6x+9=-4+9[/tex]

[tex](x-3)^2=5[/tex]

Solving:

[tex]x-3=\pm \sqrt{5}[/tex]

[tex]x=3 \pm \sqrt{5}[/tex]

An equation is formed when two equal expressions. The equation by completing the square can be rewritten as (x-3)²=5.

An equation is formed when two equal expressions are equated together with the help of an equal sign '='.

The given equation can be rewritten in the equation form by completing the square as,

x² - 4x + 4 = 2x

Bring the like terms on the same side of the equation,

x² - 4x - 2x + 4 = 0

Simplify the like terms of the equation,

x² - 6x + 4 = 0

Add positive 5 to both sides of the equation,

x² - 6x + 4 + 5 = 5

Solve the like terms,

x² - 6x + 9 = 5

Using the binomial property (a-b)²=a²+b²-2ab, x² - 6x + 9 can be written as,

(x - 3)² = 5

Hence, the equation by completing the square can be rewritten as (x-3)²=5.

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Answer:

Number = 84

Step-by-step explanation:

Given

Represent Tens with T and Ones digit with U

[tex]T = 2U[/tex]

[tex]T + U = 12[/tex]

Required

Find the number

Substitute 2U for T in the second equation

[tex]2U + U = 12[/tex]

[tex]3U = 12[/tex]

Divide through by 3

[tex]U = 4[/tex]

Substitute 4 for U in the first equation

[tex]T = 2 * 4[/tex]

[tex]T = 8[/tex]

Hence, the number is 84

Answer:

3,000 viewers each month.

Step-by-step explanation:

1. they lost the same amount each month, which means you can divide the viewers lost by the number of months (3)

2. that would be 9,000/3

3. 3,000

4. You know you've got the right answer because this would multiply back to 9,000 with the same amount of viewers lost every month.

The required problem can be stated as the sum of a number and 4 is 10.

the equation is the relationship between variables and represented as y = ax + b is an example of a polynomial equation.

here,
To write a word a problem can be translated into the equation x + 4 = 10. So, the problem can be given as " the required problem can be stated as the sum of a number, and 4 is 10."

Thus, the required problem can be stated as the sum of a number, and 4 is 10.

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Answer:

x=200

Step-by-step explanation:

Solve for  x  by simplifying both sides of the equation, then isolating the variable.

200/5-30=10

Answer:

45 yrs old

Step-by-step explanation:

x + 3 = 4(x - 33)

:x + 3 = 4(x) - 132

Add 132 and minus x on both sides of equation

then: 135 = 3(x)

Answer:

Present age of Dianna is 45 years old

Step-by-step explanation:

Let "x" be the present age of Dianna

Given that, In 3 years, Dianna will be 4 times as old as she  was 33 years ago

Then: In three years time Diana’s age would be x + 3

And: thirty three years ago it would have been x - 33

From given question,

x + 3 = 4 times as old as she  was 33 years ago

x + 3 = 4(x - 33)

x + 3 = 4x - 132

x - 4x = -132 - 3

-3x = -135

x = 45

Thus present age of Dianna is 45 years old

Answer:

8p

Step-by-step explanation:

5p-4=3p+6

-3p from 5p

2p-4=6

+4 at 4 to the 6

2p=10

divide 2p=10

8p

this should be right but not 100% thanks for the points