Mathematics High School

select the correct answer​

Select The Correct Answer

Answers

Answer 1

Answer:

-4x^2+5x-28

Step-by-step explanation:

3x^2 +5x - 7(x^2 +4)

Distribute the -7

3x^2+5x-7x^2-28

Combine like terms

-4x^2+5x-28

Related Questions

Which number is a factor of 10 but not a multiple of 2

Answers

5 because 5x10=50 and 5 doesn’t go into 2

5 is number which is a factor of 10 but not a multiple of 2

What is the fundamental principle of multiplication?

Multiplication is the mathematical operation that is used to determine the product of two or more numbers. If an event can occur in m different ways and if following it, a second event can occur in n different ways, then the two events in succession can occur in m × n different ways.

We need to find a number which is a factor of 10 but not a multiple of 2

10/2 = 5

however,

2 x 2.5 = 5

Since it doesn't work, cannot have decimals.

Therefore, 5 is your answer

5 is number which is a factor of 10 but not a multiple of 2

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SALES Cars and trucks are the most popular vehicles. Last year, the number of cars sold was 39,000 more than three times the number of trucks sold. There were 216,000 cars sold last year. Write an equation that can be used to find the number of trucks, t, sold last year.
​

Answers

Given :

Miki has 104 nickels and 88 dimes. She wants to divide her coins into groups where each group has the same number of nickels and the same number of dimes.

There were 216,000 cars sold last year.

To Find :

Equation that can be used to find the number of trucks, t, sold last year.

Solution :

Let , number of truck sold is t and number of car sold is c.

It is given that the number of cars sold was 39,000 more than three times the number of trucks sold.

So ,

[tex]c=3t+39000\\\\t=\dfrac{c-39000}{3}[/tex]

Putting value of c = 216000 in above equation , we get :

[tex]t=\dfrac{c-39000}{3}\\\\t=\dfrac{216000-39000}{3}\\\\t=59000[/tex]

Hence , this is the required solution .

​

An equation is formed of two equal expressions. An equation that can be used to find the number of trucks, t is 216,000 = 39,000 + 3t.

What is an equation?

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

Given that in the Last year, the number of cars sold was 39,000 more than three times the number of trucks sold. Therefore, we can write,

Number of cars sold = 39,000 + 3 times the number of trucks sold

Number of cars sold = 39,000 + 3t

where t represents the number of trucks sold.

Given that number of cars sold is 216,000. Therefore, the equation can be solved for t as shown below.

216,000 = 39,000 + 3t

216,000 - 39,000 = 3t

3t = 177,000

t = 177,000 / 3

t = 59,000

Hence, an equation that can be used to find the number of trucks, t is 216,000 = 39,000 + 3t.

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Question what is the unit rate for miles per gallon

Answers

Answer:

41 miles per hour

Step-by-step explanation:

This is a fraction equal to

41 miles ÷ 1 gallon

We want a unit rate where

1 is in the denominator,

so we divide top and bottom by 1

41 miles ÷ 1

1 gallon ÷ 1  

= 41 miles per gallon

I hope this works

At Peninsula High School, the cafeteria is collinear and equidistant from the Science Building
and the library. The Science Building is located at the point (5, 12) on a coordinate plane,
and the cafeteria is at point (12, 16). Find the coordinates of the library.

x=???
y=??

Answers

Answer: (19, 20)

Step-by-step explanation:

A ______ is a graph of data based on quartiles showing a rectangle with lines extending from both its ends.

Answers

a box and whisker plot

2343443444
Is it rational or irrational?

Answers

Answer:rational

Step-by-step explanation:

Answer:irrational

Step-by-step explanation: because rational is a pattern for example 0.333333333333333 it’s stays the same number and goes on forever another example 0.2424242424242424 and irrational is opposite for example 0.639363920263739267392674035252 And goes on forever :)

What is the sum of -2 + (-5)?

Answers

Answer:

-7

Step-by-step explanation:

Answer:

The sum is -7

Step-by-step explanation:

3. -19-8 dind the sum or difference ​

Answers

Answer:

the answer is -27

Step-by-step explanation:

hope this helps

what is -12 + (-66) + (-48)

Answers

Answer:

-126

Step-by-step explanation:

-12-66-48=

-78-48=

-126

Answer:

-126

Step-by-step explanation:

1- remove the parentheses -12-66+(-48)

2- change + to - so now its -12-66-48

3- calculate the sum of the negative numbers.

Then you get -126

Evaluate the expression for j = –6.

–j2

Answers

Answer:

j=-2

Step-by-step explanation:

j=-6-2j      Add 2j to both sides to get terms on 1 side

3j=-6        Divide both sides by 3 to get j alone

j=-2

During a workout, Vince tries to keep Nis
heart rate at 134 beats per minute. His
actual heart rate varies from this value by
as much as 8 beats per minute. Write
and solve an absoluto value inequality to
find Vince's range of heart rates,

Answers

Answer:

16 3/4 or 16.75

Step-by-step explanation:

134/8=16 3/4or 16.75

which of the following us the solution to | x | +5 < 1

the picture is the choices​

Answers

Answer:

No solution

Step-by-step explanation:

The lines mean absolute value so any negative number will become positive, meaning once simplified you will have a positive number added to five and there is no positive number that when added to five will be less than 1.

Jen ran 9 miles in 117 minutes , if her speed remained the same throughout the run , what was her pace?

Answers

117 ÷ 9 = 13

Hope this helps!

Jen's pace is approximately 13 minutes per mile.

To calculate Jen's pace, we need to determine the time it took her to run 1 mile.

Jen ran 9 miles in 117 minutes, so we divide the total time by the number of miles:

Pace = Total time / Number of miles

Pace = 117 minutes / 9 miles

To simplify the pace, we can convert 117 minutes into hours by dividing it by 60:

Pace = (117 minutes / 60) hours / 9 miles

Pace ≈ 1.95 hours / 9 miles

Now, to find the pace in minutes per mile, we can convert 1.95 hours to minutes by multiplying it by 60:

Pace ≈ (1.95 hours × 60) minutes / 9 miles

Pace ≈ 117 minutes / 9 miles

Therefore, Jen's pace is approximately 13 minutes per mile.

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25 -(-x)=

Commutative property if addition

Answers

Answer: 25+x

Explanation: first you must distribute the negative to what is in the parentheses, which in this case is -x. a negative multiplied by a negative is a positive, so you now have 25 + x.

Solve each inequali
2x - 1 < 11
how do i solve this

Answers

Answer:

x < 6

Step-by-step explanation:

2x - 1 + 1 < 11 + 1

2x < 12

x < 6



_____ is a single trial or a group of trials

Answers

Answer:

Kind of a guess bc there are lots of words that would work but how about "test"?

Step-by-step explanation:

On a January day in Michigan, the low temperature was 5 degrees colder than 2℉ and the high temperature was 5 degrees warmer than 2℉.

Answers

Answer:

-3 was the low and the high temp. is 7

Step-by-step explanation:

Simplify 12edf - 13def. State a property that you can use.

Answers

Answer:

Simplify 12edf - 13def

-0.923076...edf per def

(40 POINTS AND BRAINLIEST. SHOW ALL WORK)

1) what is y+xy if x = 6 and y = 3


2) what is (p-r)^2 if p = 4 and r = 1

Answers

Answer:

1.)21 2.)9

Step-by-step explanation:

You replace each with the number given so in the first one you do 3+6*3 to get 21 and in the second one you do (4-1)^2 or 3^2 or 9

Answer:

21,9

Step-by-step explanation:

What is the area of this rectangle ?
Answer choices are in the picture

Answers

Answer:

D) [tex]15x^8y^3[/tex]

Step-by-step explanation:

Area = Length * Breadth

Area = [tex]5x^6y^2*3x^2y[/tex]

Apply exponent rule: [tex]a^b*a^c=a^{b+c}[/tex]

Therefore,

Area = [tex]5x^{6+2}y^2* \:3y[/tex]

Area = [tex]5x^8y^2*3y[/tex]

Apply exponent rule as mentioned above:

Area = [tex]5x^8y^{2+1}* \:3[/tex]

Area = [tex]5x^8y^3*3[/tex]

Multiply 3:

[tex]15x^8y^3[/tex]

I FEEL SO DUMB PLEASE HELP

Answers

Answer:

group of points that don't all lie in the same plane are non-coplanar.

Step-by-step explanation:

Answer:

I agree with this person's answer

round 673,432 to the nearest thousand

Answers

Answer:

Hi there!

Your answer is:

673,000

Step-by-step explanation:

The thousand place is 673,432!

Since 4 is lower than 5, we round down !

Hope this helps

Noah earned n dollars over the summer. Mai earned $275, which is $45 more than Noah did. write an equation to match this

Answers

Answer:

n= 275-45

Step-by-step explanation:

Mai got 45 more than Noah. This tells you that it's a subtraction problem.

Sarah took 30 minutes to run 4 miles. At this rate, how many miles can she run in 45 minutes?

Answers

Answer:

6 miles

Step-by-step explanation:

Divide to find unit rate 30 ÷ 4

Multiply answer: answer × 45

= 6 miles

whole equation should look like this: 30 ÷ 4 × 45 = 6

Hope this helps!

u = b - ak, solve for a

Answers

Hey there!☺

[tex]Answer:\boxed{a=\frac{b-u}{k}}[/tex]

[tex]Explanation:[/tex]

[tex]u=b-ak[/tex]

In our first step, we will flip the equation:

[tex]-ak+b=u[/tex]

Now add -b to both sides:

[tex]-ak+b+-b=u+-b\\-ak=-b+u[/tex]

In our last step, we will divide both sides by -k:

[tex]\frac{-ak}{-k}=\frac{-b+u}{-k}\\a=\frac{b-u}{k}[/tex]

a=b-u/k is your answer.

Hope this helps!☺

20 points plz just help me. Explain how you would use fraction bars to find the quotient of StartFraction 10 Over 12 EndFraction divided by StartFraction 4 Over 6 EndFraction. What is the quotient?

Answers

Answer:

5/4

Step-by-step explanation:

(10/12) / (4/6)

Reduce the fractions:

(5/6) / (2/3)

Multiply by the reciprocal:

(5/6) × (3/2)

15/12

Reduce:

5/4

Answer:

Draw one whole fraction bar. Next, draw 6 equal bars under it, since you are dividing by sixths. Then draw a twelfths fraction bar with 2 twelfths for each sixth bar. Above the twelfths bar, circle groups of 4 sixths. There is one group of 4/6 with 1/6 remaining. Since 1/6 is 1/4 of 4/6, the quotient is 1 1/4.

Step-by-step explanation:

why did someone remove ma answer :l

PLEASE HELP MEEEE I WANT TO CRY BECAUSE IM SO CONFUSED :( ILL GIVE YOU A BRAINLIEST ANSWER!

Answers

Answer:

f(x)=x^2

Step-by-step explanation:

Because it is a quadratic function this is the quadratic parent function.

Answer:

Step-by-step explanation:

The equation is y=x^2

What does 4•10^6 mean in words?
Please help someone I’ll give you a brainiest and a thanks!

Answers

Answer:

4 times 10 to the power of 6

Step-by-step explanation:

• Means Multiplying

^ Means To the power of

Hope this Helped

Branliest is appreciated,

Click on the pic to see it. Need help with question 2

Answers

I hope you might have understood.

Answer:

2.

[tex]3 \sqrt{6} [/tex]

7.348469228

[tex]5 \sqrt{5} [/tex]

11.18033989

[tex]12 \sqrt{3} [/tex]

20.78460969

) Match each expression with its description.

Answers

The first one belongs to 8 ^2 because 8 is the one being multiplied by itself twice making it the base.

The second one belongs to 2 ^8 because two is being multiplied by itself 8 times.

The third one belongs to 2 ^4 because 2 is multiplied by itself four times.

And the last one belongs to 4 ^2 because four is being multiplied by itself two times.
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