Mathematics Middle School

Which expression is equivalent to 6(7x – 9)?

A. 42x + 54
B. 42x – 9
C. 42x – 54
D. 54x – 9

Answers

Answer 1

Answer:

C

Step-by-step explanation:

42x-54

Answer 2

Answer:

The answer is C

Can i get a brainliest?

Step-by-step explanation:

6(7x−9)

=(6)(7x+−9)

=(6)(7x)+(6)(−9)

=42x−54

Related Questions

Clare estimates that her brother is 4 feet tall. When they get measured at the doctor’s office, her brother’s height is 4 feet, 2 inches.

1. Should Clare's or the doctor's measurement be considered the actual height? Explain your reasoning.

2. What was the error, expressed in inches?

3. What was the error, expressed as a percentage of the actual height?

Answers

Answer:

DAMMMMMMMMMMM HE SHORT

Step-by-step explanation:

Pythagorean Theorem: a^2 + b^2 = c^2

Question 6 options:


No. Since 7^2+9^2≠11^2, the triangle cannot be a right triangle.



Yes. Since 7^2+9^2=11^2, the triangle must be a right triangle.



Yes. Since7^2+9^2≠11^2, the triangle must be a right triangle.



No. Since 7^2+9^2=11^2, the triangle cannot be a right triangle.

Answers

9514 1404 393

Answer:

  No. Since 7^2 + 9^2 ≠ 11^2, the triangle cannot be a right triangle.

Step-by-step explanation:

You may recall that side lengths of 3, 4, 5 make a right triangle. That particular triple has several interesting characteristics. One is that it is the only (reduced) triple that is an arithmetic sequence (has a constant difference between the side lengths). Any right triangle that has sides that differ by a constant amount must be a multiple of 3, 4, 5.

Here, we have sides of length 7, 9, 11—values that differ by 2. They form an arithmetic sequence that is not a multiple of 3, 4, 5, so we know right away they cannot be sides of a right triangle.

__

If we want to use the Pythagorean relation to check, we can see if the equation is true:

  7² + 9² = 11²

  49 + 81 = 121

  130 = 121 . . . . . . Not True

shamus owes his parents $126 he pays them 60% of the 45 $ he earns as a soocer referee each week how many weeks will it take shamus to pay back all the money he owes to his parents [answer is not 27}

Answers

Answer:hoyniuybit

Step-by-step explanation:

It will take about 5 weeks because 60% of $45 is $27 and 126/27=4.666

What is the approximate area of the two congruent red right triangles?


A. 17 in²

B. 31 in²

C. 33 in²

D. 51 in²

Answers

Answer:

A. 17in

Step-by-step explanation:

Answer: B. 31 in²

Step-by-step explanation:

Look who I recreated

Find the value of the x

Answers

Answer:

The answer should be 77, but the triangle in the question seems off. Read the explanation.

Step-by-step explanation:

To find the exterior angle in this problem, you can use the exterior angle theorem.
Interior angle + interior angle = exterior angle
25 + 52 = 77
You can double-check this answer by figuring out the third interior angle.
Since the sum of all the interior angles of a triangle should be 180, you can determine that
25 + 52 + y =180
Y= 103
or, since a straight line is always 180 degrees (Y+X=180)
25+52+(180-x)=180

X= 77
The reason why I think the question looks weird is since 77 is an acute angle, and even though it's the only answer that makes sense in this question, angle X is clearly an obtuse angle, as shown in the picture.



IM TIMEDDD HELP!! Which shows a rational number plotted correctly on a number line?
-3.5
-8
-6
4
-4
-2
0
2
21
2
-18
-20
-16
-14
-12
-10
-
1.00
-10
-6
-4
-2
0
4
2.

Answers

I guess the one with 2
The second one. Is correct

The model car is 3 inches long. On the box, it says the scale of the model is 1/42. What is the length of the actual car in feet? (convert your answer from inches to feet.)

Answers

Answer:

10 feet 6 inch

Step-by-step explanation:

3 times 42 is 126. 126 to feet is 10 ft 6 inch

10 ft and 6in hope this helps

Answer this question ASAP please
I don’t know if you need the second image.

Answers

Member 1 ( Oliver)
Order: chicken tenders, a large green salad with a grilled cheese sandwich with lemonade and for dessert a pecan pie

Member 2 (Susan)
Order: Clam chowder with a BLT and a dot Coca Cola with chocolate pudding

Member 3 (Carl)
Order: Double Cheeseburger with a side of French fries along with the soup of the day and ice tea

Member 4 ( Lana)
Order:
Hummus plate, with a deli sandwich and baked beans and a pecan pie with some lemonade

please help me the best that you can. this is my last grade for this class and I really need to pass.

Answers

Answer:

v = 52 m/s

Step-by-step explanation:

V= 52 m/s I think I believe so

-2x+3-4x^2+11-15x+2x^2-15=?

Answers

Answer:

Hope I Help!

Step-by-step explanation:

−2x+3−4x2+11−15x+2x2−15

=−2x+3+−4x2+11+−15x+2x2+−15

Combine Like Terms:

=−2x+3+−4x2+11+−15x+2x2+−15

=(−4x2+2x2)+(−2x+−15x)+(3+11+−15)

=−2x2+−17x+−1

Answer:

=−2x2−17x−1

i need help pls
and explain aslo

Answers

Answer:

7

Step-by-step explanation:

Answer=7.536m3
Volume divided by 6.4m

Help, please!
The angle measurements in the diagram are represented by the following expressions.





Solve for x and then find the measure of ∠B

Answers

B=A the are the same angle B and A

explain how to answer the word problem below.

3 feet = 1 yard
John has 476 feet of yarn and he needs to know how many yards he has. How many yards of yarn does John have. (solve and explain)

Answers

You get 158.667 yards of yarn

Explanation-You dived the length value by 3 since 3 feet = 1 yard
158.7 this is because you have to divide 476 by 3 because each 3 feet of yarn is a yard. Hope that makes sense I’m not very good at explaining.

While at the beach, daniel buys lunch for his family from a food stand. he buys one hot dog for $2.50 and 3 hamburgers. if he spent $13 total, write and solve the equation to find H, the amount each hamburger cost.

Answers

Answer:

3.5$

Step-by-step explanation:

simple.

Answer:13 = 2.50+3h

Step-by-step explanation:

H = $3.50

What is 16x - 13y =7 in slope intercept form

Answers

Answer:

y=12/13x−10/13

Step-by-step explanation:

The answer is y= 16/13x - 7/13

3x+5y= 10?

A. y =⅗ x+ 10
B. y = 3x− 2
C. y =- ⅗ x +15
D. y = − 5/3 x - 8

Answers

It a or c take a guess
The answer should be y=-3x/5+2

Why do equivalent ratios form a straight line when graphed?

The vertical distance between points is constant, and the horizontal distance between points increases with each point.

The ratio of the change in y-values to the change in x-values is equivalent for any two points in a graph of equivalent ratios.

The horizontal distance between points is constant, and the vertical distance between points increases with each point.

The y-values of equivalent ratios increase at a constant rate, and the x-values decrease at a constant rate.

Answers

Answer:

D-The y-values of equivalent ratios increase at a constant rate, and the x-values decrease at a constant rate.

Step-by-step explanation:

i just did the quiz


D because the y values increase at a constant rate

PLEASE HELP- THIS IS DUE AT 2PM PLSSSS HELPPPP QUICKKKK!! WILL MARK BRAINLIEST


There are three parts to this problem. Solve each percent word problem and show your setup for each one.



You have r rare coins, consisting of p pennies and n nickels.

1. p is 20% of 190. How many pennies do you have?


2. 190 is 200% of r. How many rare coins do you have?


3. n is 60% of r. How many nickels do you have?

Answers

Answer:

1. p=38 pennies. 2 r= 95 rare coins.  3. n=57 nickels

Step-by-step explanation:

1. how you get it is .20 x 190

2. 190/2 =2/3 x r

3. .60 x 95

Part A: What is the approximate y-intercept of the line of best fit and what does it represent? (5 points) Part B: Write the equation for the line of best fit in the slope-intercept form and use it to predict the number of matches that could be won after 13 months of practice. Show your work and include the points used to calculate the slope

Answers

Answer:

Well I can't do it if you don not show the graph :(

Step-by-step explanation:

Answer:

Let's actually find the line of best fit...

m=(nΣyx-ΣyΣx)/(nΣx^2-ΣxΣx)

m=(11*836-130*55)/(11*385-3025)

m=2046/1210  

m=93/55

b=(Σy-93Σx/55)/n

b=(55Σy-93Σx)/(55n)

b=(7150-5115)/(55*11)

b=185/55, so the line of best fit is:

y=(93x+185)/55

A)  The approximate y-intercept (the value of y when x=0) is 185/55≈3.36.

Which means that those who do not practice at all will win about 3.36 times

B) y(13)=(93x+185)/55

y(13)≈25.34

So after 13 months of practice one would expect to win about 25.34 times.

Helpppp mee pleaseee!!

Answers

Answer:




Step by step explanation:

Answer:

# 203 is C

Step-by-step explanation:

5.2×5.2×3.2= 86.528

Select the statement that makes this comparison correct: 0.45 ________ 0.39.
Question 1 options:

0.39 > 0.45

0.45 > 0.39

0.45 < 0.39

0.39 = 0.45

Answers

Answer:

its c

Step-by-step explanation:

look at the tenths

.39         .45

I think that the correct answer would be the third option. Option C

What operation should you perform first when you evaluate this expression? (15 x 5 x 4) x 3 *
Answers:
15x5
5x4
4x3

Answers

15*15. You’d still get the same answer if you do 5*4 and then 15

Me not being a complete id.iot-

Answers

Answer:

im pretty sure the answer is d

Step-by-step explanation:

Help me with this math please

Answers

It means that The bicyclist rides 64 miles in 4 hours!! :)

Answer:

The bicyclist rides (64) miles in (4) hours.

Step-by-step explanation:

As you can see the 64 is on the Distance side, so that shows how far he or she travels.  Then you can see on the bottom of the graph it shows you time in hours. The point is at 4, so he or she travels 64 miles in 4 hours.

Hope this helped.

HELP TEN POINTS AND BRAINLEST IF RIGHT TROLL AND I WILL REPORT YOU!!!

Answers

Answer:

C. 1/9 sq yd

Step-by-step explanation:

1/3 * 1/3 = 1/9

The radius of a circle is 3 in. Find its area in terms of π.


Please help :(

Answers

Answer:

A≈28.27

Step-by-step explanation:

Answer:

3

Step-by-step explanation:

Does this check out?
Its for pre-algebra.

Answers

Answer:yes

Step-by-step explanation:

Answer:

yes, that is correct, good job!

A line that includes the points (4,j) and ( – 8, – 9) has a slope of 16 . What is the value of j?

Answers

The answer is j= -8, if the slope is 16/1 then -8 goes up 16 to 4 and -9 goes over 1 to -8

what is y
help please

Answers

y= 13.
EXPLANATION.
According to the table,
X is 5.
And y is in the column on the right,
you add 2 for each number.
11 + 2 = 13.
HAVE A GUD DAY

Please answer 12. How ever gets it right will get brainlyest

Answers

Answer:

-6.5

Step-by-step explanation:

-18-2-6+14=26

-26/4=-6.5

Answer: -3 yards

Step-by-step explanation:

-2+14+-18+-6 = -12/4 = -3

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