Mathematics Middle School

Sarah factored x(to the power of 2)−10x+21

and found the answer to be(x−7)(x−3)
. Is she correct?

Answers

Answer 1

Answer:

yes but its the wrong way

Step-by-step explanation:

(x-3)*(x-7)

Related Questions

At a dog show, the entries included Welsh corgis and cocker spaniels. The table compares the weights within this sample of dogs.

Answer the questions to compare the weights of the dog breeds and determine which breed of dog had the heaviest entry.

1. What is the median weight of the Welsh corgis? What does the median tell you about their weights? (3 points)

2. Which type of dog has the greater variation in weights? Justify your answer. (3 points)

3. Do you think the heaviest dog in the show was a Welsh corgi or a cocker spaniel? Explain how you made your choice. (4 points)

WILL GIVE BRAINLIEST TO THE BEST ANSWER SO PLEASE ANSWER ALL OF THE QUESTIONS

Answers

1) The weight for the Welsh corgis is 27. It tells us about the weights because in the table, it says that the median weight is 27.

2) The Cocker Spaniel because it has a greater variation in the weights shown in the table.

3) I would think that the Welsh Corgi is the most heaviest dog in the show because in the table, it shows the information about it.



Hope this helps

On a piece of paper, use a protractor to construct △ABC with m∠A=30° , m∠B=60° , and m∠C=90° .


Which statements about the triangles are true?


Select each correct answer.

AC BC

AC>AB

Answers

Answer:

BC > AC and BC < AB.

Step-by-step explanation:

Given that,

To construct △ABC with m∠A=30°, m∠B=60°, and  m∠C=90°.

We have to find,

The statements about the triangles are true.

According to the question,

In △ABC

This means that the side opposite to the right angle in the triangle is AB.

Since, the side opposite to the right angle is the hypotenuse and is the longest side of the triangle, thus AB cannot be shorter than any other side of the triangle.

Then, BC < AB.

And, In the triangle △ABC ,

tan60° =

tan60° =

By comparing the equations,

Then, BC > AC

Hence, The required correct statement in △ABC are BC > AC and BC < AB

Answer:

ac<ab & ac>bc

Step-by-step explanation:

Bozo above me was wrong.

Freddie needs to buy 3 dozen cookies for a party. The first 20 cookies cost $0.27 each. The rest cost $0.17 each.
How much will Freddie spend on cookies?
$2.72
$5.40
$8.12
$9.72

Answers

Answer:

$8.12 is the total amount Freddie will spend on the cookies.

Step-by-step explanation:

3 dozen = 36 cookies

20 x $0.27= $5.4

we still need 16 more cookies

16 x $0.17= $2.72

add $5.4 and $2.72 together. which = $8.12

PLEASE HELP!!!! WILL MARK BRAINIEST

Answers

Answer: True

Explanation: It must work for every possible input value. And it has only one relationship for each input value.

what is the constant term in the expression 6 x 3^y + 8x^2 + 5x + 7

Answers

Answer:

The constant term is 7

Answer:

Step-by-step explanation:

The constant term is 7. this is because x and y are unknowns and change depending on the other. As 6x^3y will change depending on what x or y is so will: 8x^2 and 5x therefore 7 is the constant term.

What is the solution to the equation 1/4x - 1/8 = 7/8 + 1/2x?

Answers

Answer:

x = -4

Step-by-step explanation:

I simplified both sides, then, isolated the variable

Tasha went golfing. Tasha hit the ball 220 yards down the fairway and then 165 yards to the hole. What would have been the shortest distance had she just hit the ball from the tee area to the hole?


A 275 yards


B 385 yards


C 145.5 yards


D 196 yards

Answers

Answer:

B

Step-by-step explanation:

Your answer would be B i’m pretty sure : )

pleaseeeee help me with this!

Answers

Answer:

x=32 degrees

Step-by-step explanation:

triangle is 180

right angle=90

angle=58

180-90-58=32

Write an inequality for the situation:

You need to save at least $250.

Answers

Answer:

your answer will be m ≥ 250

s >= 250

s represents the amount of money you need to save
>= is the greater than or equal to sign !

Find the Scale Factor pls

Answers

Answer:

A.2

Step-by-step explanation:

So, to get 8 to 16 you have to divide 16 and 8 and you get 2. Then divide 20 by 10 and you also get 2. Therefore, the answer is 2

Answer:

A. 2

Step-by-step explanation:

Scale factor = image length / object length

                     = 16 / 8 ( pick any one side length)

                     = 2

Im Confused…

( The question is in the image )

Answers

Answer:

488

Step-by-step explanation:

Area of rectangle: 17 x 22 = 374

Area of triangle: 22 - 10 = 12

0.5(12 x 19) = 114

Add them together: 374 + 114 = 488

c²+ a if a = 1/2 and c = 9

Answers

[tex] \longrightarrow \tt {c}^{2} + a [/tex]

[tex] \\ [/tex]

[tex] \longrightarrow \tt {9}^{2} + \dfrac{1}{2} [/tex]

[tex] \\ \\ [/tex]

[tex] \longrightarrow \tt 81+ \dfrac{1}{2} [/tex]

[tex] \\ \\ [/tex]

[tex] \longrightarrow \tt 81+0.5[/tex]

[tex] \\ \\ [/tex]

[tex] \longrightarrow \tt 81.5[/tex]

Answer:81.5
Explanation c^2+a= 9^2+0.5
=81.5

Which statement best describes how to verify the Pythagorean Theorem using this drawing?


PLEASE HELP!!!!!!!!!!!!!!!!!!!!! I WILL BE FINISHED IF I GET THIS LAST ONE DONE!!!!!


A The sum of the perimeters of the smaller squares is equal to the perimeter of the larger square.


B The difference of the perimeters of the smaller squares is equal to the perimeter of the larger square.


C The difference of the areas of the smaller squares is equal to the area of the larger square.


D The sum of the areas of the smaller squares is equal to the area of the larger square.

Answers

Answer:

Either A or D

Step-by-step explanation:

Because if you put the area of the two smaller squares together it would equal that one big square.

I don't know if this is right just a tough guess but I hope this helps!

And Good Job for almost being completed!

:)

D, because a^2 + b^2 is c^2

HELP PLEASE ANY IRRELEVANT ANSWERS WILL BE REPORTED
Find Slope:

Answers

Answer:

4 i think

Step-by-step explanation:

because the slope is a triangle, and the way the line is it would be 4 i think

(SAT Prep) If the lengths of two sides of a triangle measure 8 and 13 what could the length of the third side measure
(A) 6

(B) 21

(C) 3

(D) 4
Hint its not D.

Answers

Answer:

A)6

Step-by-step explanation:

Use the triangle inequality theorem, which states that the third side of a triangle can not be greater than or equal to the sum of the other two sides, and can be no less than the or equal to the difference of the two other sides.

The sum is 8+13=21

The difference is 13-8=5

So if we call our third side x, then

[tex]5

If the lengths of two sides of a triangle measure 8 and 13 units, using triangle inequality theorem, the length of the third side could be 6 units.

What is triangle inequality theorem?

The triangle inequality theorem describes the relationship between the three sides of a triangle. According to this theorem, for any triangle, the sum of lengths of two sides is always greater than the third side.

Given the two sides be 8 and 13 units.

Let the third side be x units.

First,

8 + 13 > x

21 > x

x < 21

Second,

8 + x > 13

x > 5

Third,

13 + x > 8

True for all values of x.

So,

5 < x < 21

From the given options, only 6 satisfies our condition.

Learn more about triangle inequality theorem here

https://brainly.com/question/1163433

#SPJ2

Does the equation r = 3 represent a function? Choose one option from each drop-down menu to explain your answer. For an equation to represent a function, multiple different inputs cannot have the same outputs The equation x = 3 represents a function because! Choose... inputs have Choose... outputs. Choose... the same multiple different​

Answers

Answer:

This relation is NOT a function. In order for an equation to represent a function, every x in the range of the function must only have one y -value.

Factor2(to the power of 2)+5x−3

Answers

Answer:

If the equation is 2[tex]x^{2}[/tex]+5x-3

then the factorized form would be (2x-1)(x+3)

Step-by-step explanation:

On a recent round of golf, Shana did not make par on 3 out of 18 holes. On what percent of holes did Shana make par?

Answers

Answer:

16.6667%

Step-by-step explanation:

16.6667
Set up the numbers you have
3/18 and x/100
Cross multiply
3x100 = 300
18•x = 18x
300 divided by 18 = 16.6667
If the answer has to be rounded to the nearest whole then it would be 17%

please help me with this question

Answers

Answer:

49

Step-by-step explanation:

PEMDAS

Parentheses first or as symbols, ( and ), Exponents next, and there are no exponents, then Multiplication and Division from left to right, and lastly, Addition and Subtraction from left to right.

5 x (6 + 4) - 1

=5 x (10) - 1

=5 x 10 - 1

=50 - 1

=49

Answer:

49!

Step-by-step explanation:

PEMDAS

Parentheses

Exponents

Multiplication

Division

Addition

Subtraction


Start with parentheses, so 6+4. 10.

Then your equation is 5 x 10 - 1.

Then Multiplication, since there are no exponents- 5 x 10 = 50.

Then since there’s no division, skip to addition.

Since there is no addition either go to subtraction, 50 - 1.

50 - 1 = 49.


5 x (6 + 4) - 1 = 49

Help me wit my homework thx

Answers

Answer: the answer to #3 is a= 4

Step-by-step explanation:

I have to answer each question with a separate box

Answer:

3) a = 4

4) m = 10

5) x = 2

6) (correct as is)

9) t = 14

Step-by-step explanation:

3:

Step 1: Add 4 to both sides.

[tex]8+4=3a-4+4[/tex] [tex]12=3a[/tex]

Step 2: Divide both sides by 3.

[tex]12/3 = 3a/3[/tex] [tex]a = 4[/tex]

4:

Step 1: Subtract 9 from both sides.

[tex]m/5 + 9 - 9 = 11 - 9[/tex] [tex]m/5 = 2[/tex]

Step 2: Multiply both sides by 5.

[tex]m/5 * 5 = 2 * 5[/tex] [tex]m = 10[/tex]

5:

Step 1: Subtract 13 from both sides.

[tex]13+7x-13=27-13[/tex] [tex]7x=14[/tex]

Step 4: Divide both sides by 7.

[tex]7x/7 = 14/7[/tex] [tex]x=2[/tex]

6: (correct as is)

9:

Step 1: Subtract 5t from both sides.

[tex]42+5t-5t=8t-5t[/tex] [tex]42=3t[/tex]

Step 2: Divide both sides by 3.

[tex]42/3=3t/3[/tex] [tex]t=14[/tex]

only answer if yk how to do this

Answers

Answer:

x = 25

scalene, acute

Step-by-step explanation:

Sum of the interior angles of a triangle = 180°

[tex]\implies (2x+11)+(3x-7)+(2x+1)=180[/tex]

[tex]\implies 2x+11+3x-7+2x+1=180[/tex]

Collect like terms:

[tex]\implies 2x+3x+2x+1+11-7=180[/tex]

Combine like terms:

[tex]\implies 7x+5=180[/tex]

Subtract 5 from both sides:

[tex]\implies 7x=175[/tex]

Divide both sides  by 7:

[tex]\implies x=25[/tex]

Substituting found value of [tex]x[/tex] into the three angle expressions:

∠A = (2 x 25) + 11 = 61°

∠B = (3 x 25) - 7 = 68°

∠C = (2 x 25) + 1 = 51°

This is a scalene triangle as it has three different angles and three different side lengths (non-congruent).

It is also an acute triangle as all interior angles are less than 90°

x=25 because a triangle is 180° so 2x+11+3x-7+2x+1=180

Translate each verbal phrase into an algebraic expression or equation.
13) Seven more than the quotient of a number and 2 is 10.
14) Five less than twice a number is 7.
15) One less than the product of four and a number is 11.
16) Six less than six times a number is 12.
17) Ten more than the quotient of a number and 3 is 12.
18) Seven more than twice a number is 1.
19) The sum of 9 and the quotient of x and 7 is 11.
20) The product of 8 and the difference of n and 3.

Answers

Answer:

13) 7 + x/2 = 10

14)  2x - 5 = 7

15) 4x - 1 = 11

16) 6x - 6 = 12

17) x/3 + 10 = 12

18) 2x + 7 = 1

19) 9 + x/7 = 11

20) 8(n - 3)

Step-by-step explanation:

The quotient of x and 2 = x ÷ 2 = x/2

The product is the result of multiplying two or more other numbers

The sum is the result of adding two or more numbers

The difference is the result of subtracting one number from another

13) 7 + x/2 = 10

14)  2x - 5 = 7

15) 4x - 1 = 11

16) 6x - 6 = 12

17) x/3 + 10 = 12

18) 2x + 7 = 1

19) 9 + x/7 = 11

20) 8(n - 3)

If 70 and above is considered a passing grade, how many students passed the math test?

A.

6

B.

10

C.

9

D.

8









can you please not delete this? im actually VERY confused and would like people to not just delete anything i ask : ) and to the person who deleted my question, im asking for people to explain it, not answer for me.

Answers

Answer:  D) 8

Explanation:

The green, light blue, and red bars all indicate scores that are 70 or higher.

We add up the heights of those bars to find out how many people passed.

green bar = height of 2light blue bar = height of 5red bar = height of 1

So 2+5+1 = 8 people passed.

Unfortunately 2 people (dark blue bar) got below 70 so they didn't pass.

D is the correct answer

You have been asked to build a scale model of your school out of toothpicks. Imagine your school is 30 feet tall. Your scale is 1 ft:1.26 cm. If a toothpick is 6.3 cm tall, how many toothpicks tall will your model be?

Answers

Answer: If your school is 30 feet tall and 1 feet is 1.26 cm,
you would multiply 30 and 1.26 to get the height
of the scale model which is 37.8 cm. Then, if
each toothpick is 6.3 cm, you would take 37.8
and divide it by 6.3 to get the number of
toothpicks you need to build the school, which
is 6.
The model will be 6 toothpicks tall.
6 tooth picks would be the answer to your question

This list shows the weight of three vegetables Frank bought to make stew.

The potatoes weighed
2 7/8
pounds.
The green beans weighed
1 1/4
pounds.
The peppers weighed

2 1/2
pounds.
How many more pounds of vegetables would he need to have exactly 10 pounds of vegetables for his stew?

Answers

Answer:

3 3/8

Step-by-step explanation:

6 5/8

10-6 5/8

gordon the gecko is collecting crickets. his crickets weigh 100g today, and the weight of his collection increases by 20% each day. in how many days will he first have more than 300g of crickets

Answers

Answer:

1. 11e+5, 2. 5a-5, 3. 1+9, 4. 1+5, 5. -5y+10, 6. 6m

Step-by-step explanation:

A rectangular glass window is divided into two equivalent right triangles by a diagonal brace.
What is the length of the diagonal brace?



A 9 inches


B 12 inches


C 15 inches


D 21 inches

Answers

15 inches because u have to use the Pythagoras formula which is a^2+b^2=c^2 Which is 9^2+12^2=225
Then the square root of 225= 15

Answer:

21

Step-by-step explanation:

A small airplane can hold 13 people per trip. How many trips would it take the airplane to transport 9,165 people
show your work

Answers

Answer:  705 trips

Step-by-step explanation:

divide 9165 by 13

Help meeeeee! don't search please and copy down definition! use a basic sentence.

Answers

Answer:

A Quadrilateral is a four-sided polygon,like a square,rectangle,or rhombus

Hope it Helps#CarryOnLearning

A four sided shape which it’s angles add up so 360°

GIVING BRAINLIEST FOR BEST ANSWER!
Solve seven times four and five eighths.
A) Twenty eight and three eighths
B) Twenty eight and five eighths
C) Thirty two and three eighths
D) Thirty two and five eighths

Answers

Answer: the answer to you question would be C.

Answer:

C) Thirty two and three eighths

Step-by-step explanation:

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