Sarah is demonstraing the idea that polynomials are closed under addition. Her work and explanation are shown.
Select an equation and phrases to complete the statement.
Part A:
Add 30° +63 7 to
Equation A 223 - (2x)2 + 42-1
Equation B (2x)? +4. 4. - 9
Equation C (-8x)2 – (3x)3 +7
Part B:
This is closed because
of the sum are
and the sum is a polynomial.

Answer:

5/15

Step-by-step explanation:

15 students and 10 passed which means 5 failed

Answer:

The fraction is 1/3 or one-third.

Step-by-step explanation:

Have you smiled today? its very important:)

Answer:

D

it is equivalent to the expression

Answer:

22.4

Step-by-step explanation:

Let that number be " x ".

The difference between 32.6 and a number is 10.2

32.6 - x = 10.2

Add x on both sides,

32.6 - x + x = 10.2 + x

32.6 = 10.2 + x

10.2 + x = 32.6

Substract x on both sides,

10.2 - 10.2 + x = 32.6 - 10.2

x = 22.4

Therefore,

The number is 22.4

Answer:

22.4

Step-by-step explanation:

First we can make an equation to find the unknown number:

Difference mean subtraction:

32.6 - x = 10.2

To do this we can subtract 32.6 from both sides to isolate -x or to make -x the subject:

32.6-x-32.6 = 10.2 - 32.6

-x = -22.4

Now we can multiply both sides by -1 to make x positive:

-(-x) = -(-22.4)

x= 22.4

Answer:

The dots are used for dot plots, and the given Information Is to help you understand the % or number of people and things etc.

Answer:

55

Step-by-step explanation:

[tex]f(x) = 6{x}^{2} - x - 2[/tex]

[tex]f( - 3) = 6 { (- 3)}^{2} - ( - 3) - 2[/tex]

[tex]f( - 3) = 6(9) + 3 - 2[/tex]

[tex]f( - 3) = 54 + 1 = 55[/tex]

[tex]f( - 3) = 55[/tex]

I hope it helped you

Answer:

28 cm

Step-by-step explanation:

Area = 46.75 =  l * (l-3)     shows l = 8.5 cm  (using Quadratic Formula)

    then w = 5.5  

perimeter = 2 * ( 8.5+5.5) = 28 cm

The perimeter of the given card is 28 cm.

Perimeter of an object is given by adding the side lengths of the object.

Given that, the width w of a credit card is 3 cm shorter than the length. The area is 46.75 cm².

We need to find the perimeter of the credit card,

Let the length be l,

Therefore,

Area = length x width

46.75 = l x (l-3)

46.75 = l² - 3l

l² - 3l - 46.75 = 0

Finding l, we get,

l = 8.5, l = -5.5

Since, length cannot be negative so, l = 8.5 cm

So, width = 8.5 - 3 = 5.5 cm

Perimeter = 2(l+w)

= 2(5.5+8.5) = 28 cm

Hence, the perimeter of the given card is 28 cm.

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Answer:

26

Step-by-step explanation:

(5x3) + (8+3)

 15 + 11

    26

Hello ~

My name is Irxdscent, and I will be answering your question today! :D

[tex]\sf{= 5x^3 \: + \: 19}[/tex]

[tex]\sf{5x^3 \: + \: 8 \: + \: 8 \: + 3}[/tex]

[tex]\sf{Add \: the \: numbers: \: 8 \: + \: 8 \: + \: 3 = 19}[/tex]

[tex]\sf{= 5x^3 \: + \: 19}[/tex]

Hope It Helps! ~

~ Learn With Lrxdscent ~

[tex]\underline{Answer :}[/tex]

ɪ ʀ x ᴅ ꜱ ᴄ ᴇ ɴ ᴛ

Answer:

y = 3x - 42

Step-by-step explanation:

Answer:

i'd say an estimate of 1/4

im just guessing im only good at middle school math

Step-by-step explanation:

Step-by-step explanation:

[tex]c = 2\pi \: r \\ 26.69 = 2\pi \: r \\ r = 26.69 \div 2(3.14) \\ r = 4.25 \: cm[/tex]

Answer:

4.25 cm

Step-by-step explanation:

Circumference of a circle = 2πr  (where r is the radius)

[tex]\implies 26.69=2 \pi r[/tex]

[tex]\implies r=\dfrac{26.69}{2\pi }[/tex]

[tex]\implies r=4.247845431...[/tex]

[tex]\implies r=4.25\:\textsf{cm (nearest hundredth})[/tex]

Using [tex]\pi=3.14[/tex]:

[tex]\implies r=\dfrac{26.69}{2 \cdot 3.14}=4.25\: \sf cm[/tex]

Multiplication is the outcome of the product of two numbers. The total amount of money Kelsi spends on breakfast for 14 Saturdays is $94.5.

A product is the outcome of multiplication or an expression that indicates the elements that will be multiplied.

Given that Kelsi spent $6.75 every Saturday for breakfast. Therefore, the total amount that will be spent on 14 Saturdays breakfast will be,

[tex]\rm Total\ Amount = \$6.75 \times 14 = \$94.5[/tex]

Hence, the total amount of money Kelsi spends on breakfast for 14 Saturdays is $94.5.

Learn more about Multiplication:

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Answer:

$94.50

Step-by-step explanation:

i did the test and aced it

x>2 and x<4

since both are dashed that means they are both not including the x-values, so they are no equal signs with the greater or less than signs.

the shaded area is more than 2 but less than 4, not including 2 and 4 because they are dashed lines.

Answer:

28 inches

Step-by-step explanation:

To begin, the area of a rectangle is base · height. Since we are given one of the sides already, you can make an equation to solve for the other value.

5 · x = 45

5x = 45

x = 9

A rectangle has two pairs of parallel sides, or in easier terms, two sets of sides that are the same. So, the perimeter is going to be two lengths plus two widths.

2 · 5 + 9 · 2 = 10 + 14 = 28

Answer:

1/5 = 0.2 = 20%

Step-by-step explanation:

Given:

[tex]\sf Probability\:of\:an\:event\:occurring = \dfrac{Number\:of\:ways\:it\:can\:occur}{Total\:number\:of\:possible\:outcomes}[/tex]

[tex]\implies \sf P(yellow) = \dfrac{2}{10}=\dfrac15[/tex]

This can also be written as 0.2 or 20%

Answer:

[tex]Probability=0.2[/tex]

Step-by-step explanation:

Step 1:  List the given information

[tex]Total\ Marbles = 10[/tex]

[tex]Yellow\ Marbles = 2[/tex]

[tex]Blue\ Marbles = 4[/tex]

[tex]Red\ Marbles = 4[/tex]

Step 2:  Determine the probability of choosing yellow

[tex]Probability=\frac{Yellow\ Marbles}{Total\ Marbles}[/tex]

[tex]Probability=\frac{2}{10}[/tex]

[tex]Probability=\frac{1}{5}[/tex]

[tex]Probability=0.2[/tex]

Answer:  [tex]Probability=0.2[/tex]

the fraction form of your question is 1/10

the decimal form is 0.1

hope i helped mwah

Answer:

The Answer is 108, simply you find the volume of the cube 6 x 6 x 6 = 216. Since there are 108  "1-inch" cubes that fill the big cube half way you divide the volume of the big cube 216 by 2, so 216/2 which 108 will be your answer because, if you have a big cubed box that measures 6 inches in width, height, and length and you have 216 "1-inch" cubes, then you fill the box halfway, you will be left over with 108 "1-inch" cubes. You can also think about this with a cup of water, if you pour 3 cups of water into a glass and you drink half of that glass you will have half a cup of water or 1.5 cups of water left, if you drink 1/3 of the glass you will have 2 cups left. Hope I helped and Brainliest would be appreciated

Step-by-step explanation:

:)

Answer:

108

Step-by-step explanation:

hopefully it helps :)

Answer:

1 / 0.9

2/ 0.12

3/ 0.2

4/ 0.07

5/ 0.8

6/ 0.72

7/ 0.47

8/ 0.6

9/ 0.02

10/ 0.96

Step-by-step explanation:

Answer:

1. 9/10

2. 12/100 - 3/25  

3. 2/10 - 1/5

4. 7/100

5. 8/10 - 4/5

6. 72/100 - 18/25

7. 47/100

8. 6/10 - 3/5

9. 2/100 - 1/50

10. 96/100 - 24/25

I simplified some of them.

Hope this helped and Brainliest please

Answer:

16%

Step-by-step explanation:

4 people like rock

and there are 25 ppl all together

4/25=0.16

16%

Answer:

75%

Step-by-step explanation:

Answer:

10

Step-by-step explanation:

boxes= 2.5× 4.5× 6.2= 69.75

tray= 2.5× 9× 31= 697.5

697.5÷69.75= 10

Using it's concept, it is found that there is a 85% probability that the moviegoer is not in the 65-74 age range.

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

In this problem, the total number of moviegoers is given by:

T = 1224 + 1220 + 940 + 830 + 730 = 4944.

Out of those, the number not in the 65-74 age range is:

D = 4944 - 730 = 4214.

Hence, the probability is given by:

p = 4214/4944 = 0.85 = 85%.

There is a 85% probability that the moviegoer is not in the 65-74 age range.

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

Answer:

6x+5

Explanation

because -7y would be negative

Answer:

hello the answer is B

Step-by-step explanation:

because 2+2+2+2+22+2+2+2+2++2+2+2+2++2++2+2+2+2++2+2+2+2++2+2+2+2+2+2+2+2+2+2++2=I don't know

Answer:

this question have the 552.792 and centimeters of square

Answer:

My brains wires got crossed just reading this.

（；´д｀）ゞ

So give me a second while I try to wire them back.

...

...

Ok so,

Here's a little scale

0 1 2 3 4 5 6 7 8 9

^ ^ ^

Here is 0 Here is 5 And here is 9

So,

You say 9 is farther from 9 than 5. How if 9 is at 9? (っ °Д °;)っ

Can't help you there m an.

¯\_(ツ)_/¯

Then you say 5 is farther from 0 than 9.

Its actually closer to 0 than 9 is from 0. Like literally count backward and you can see you have to count less from 5 to 0 than you would for 9 to 0.

Im not sure dude.

Im a little confused now.

What were you even asking for in the first place?

｢(ﾟﾍﾟ)

Answer:

5) [tex]x=\sqrt{317}[/tex]

6) [tex]x = \sqrt{186}[/tex]

Step-by-step explanation:

You have to know Pythogeroem theorem, which is:

[tex]a^2 +b^2 = c^2[/tex],   where a, b are the sides of the triangle and c is the hypothesis (the side in front of the 90° angle)

5)

Plug in the numbers into the equation, make sure c is the hypothesis (the side in front of the 90° angle). Hypothesis is x in this example.

[tex]14^2+11^2 = x^2\\196 + 121 = x^2\\\sqrt{196 + 121} = x\\\sqrt{317} = x[/tex]

6) Hypothesis is [tex]\sqrt{226}[/tex]

 [tex]7^2 + x^2 = \sqrt{226}^2\\7^2 + x^2 = 226\\49 + x^2 = 226\\x^2 = 186\\x= \sqrt{186}\\[/tex]

Same steps for 7) and 8)