Mathematics High School

Find the missing term.
The sum of______ and 7x2 is 10x2.
A: -3x^2
B: 3x^2


Answers

Answer 1
the answer is B because it can't be negative
Answer 2
Your answer is b hope this helped

Related Questions

Write a story that matches the expression

42x - 5

Answers

I bake 45 cupcakes everyday  and every hour I sell 5 cupcakes.

Answer: Hello there!

The equation is: 42x - 5

That can be phrased as "the difference between 42 times a number x and 5"

And we want to write a story that matches this.

an example can be:

Suppose that Jon craft musical instruments and he sells them in the beach, then you could write:

"The revenue in a day for Jon is equal to $42 for each instrument that he sells, less a 5 dollar fee that he needs to pay every day"

where the number of instruments would be x.

Can u solve 6x-21=5x+17+x

Answers

6x - 21 = 5x + 17 + x

6x - 21 = 6x + 17
6x - 6x = 21 + 17

0 = 38, untrue

cannot be solved

hope this helps

Suppose that (y) varies with (x). Write an equation for the inverse variation.

y=4 when x=7

A: y= x/28

B: y=3x

C: x= y/3

D: y= 28/x

Answers

y = k/x, where k is the constant
if x = 7 and y = 4
 4=k/7


k = 4*7 = 28
 

y = 28/x

 answer is D

Gretchen and Ezia received equal scores on a test made up of multiple choice questions and an essay. Gretchen got 18 multiple choice questions correct and received 19 points for her essay. Ezia got 15 multiple choice questions correct and received 31 points for her essay.

How many points was each multiple choice question worth?
Enter your answer in the box.

Answers

I think its 91.

NOT Guaranteed this is the Answer. Best of luck to you.
I think its 91. hope this helps


1. Find the perimeter and area of a rectangle with a length of 3.2 m and a width of 1.5 m.
A) p=4.7 m; A=2.25 m^2
B) p=4.7 m; A=4.8^2
C) p=9.4 m; A=2.4 m^2
D) p=9.4 m; A= 4.8^2

2. Find the area of a triangle with a base of 27 feet and a height of 14 feet.
A) 41 ft^2
B) 82 ft^2
C) 189 ft^2
D) 378 ft^2

Answers

1. D) p=9.4 m; A= 4.8 m^2 2. C) 189 ft^2 1. Find the perimeter and area of a rectangle with a length of 3.2 m and a width of 1.5 m. The perimeter of a rectangle is simply twice the sum of it's length and width, so 2(3.2m + 1.5 m) = 2*4.7 = 9.4 m The area of a rectangle is the product of its length and width, so 3.2 m * 1.5 m = 4.8 m^2 Of the available choices, D matches with p=9.4 m; A= 4.8 m^2 2. Find the area of a triangle with a base of 27 feet and a height of 14 feet. The area of a triangle is 1/2 base times height, so 0.5 * 27 ft * 14 ft = 189 ft^2 Of the available choices, C matches with 189 ft^2

The distributive property is used to help simplify math experssions. True False

Answers

true is the answer
hope it helped

Hey!

Hope this helps...

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

TRUE

This is because when you distribute 1 thing between 2 (or more) things, it (in a way) simplifies the problem...


For Example:

solve for x

f(x) = 5*(x - 4)


The only way to solve a question like this would be to distribute the 5 to the x and to the 4...

So...

The answer is: TRUE

What is the answer for this problem

Answers

9 + 15 / 5 x 13 =
9 + 3 x 13 =
9 + 39 = 48
15/5=3
3x13=39
39+9=48

Parallelogram JKLM is shown on the coordinate plane below:

If parallelogram JKLM is rotated 270° clockwise around the origin, what are the coordinates of the endpoints of the side congruent to side JM in the image parallelogram?

Answers

Given that rotating 90 degrees clockwise around the origin switches the x andy values and makes the new y value negative, we can, for example, switch (2, 1) to (1, -2). 180 degrees clockwise simply makes both values negative (-2, -1), and 270 degrees clockwise switches them and makes the new y value negative  (-1, 2), we can plug those in to our JM endpoints to turn (-5, 1) into (-1, -5) and (-6, 2) into (-2, -6)

Answer-

The coordinates of the endpoints of the side congruent to side JM will be,

(-2, -6) and (1, -5).

Solution-

When rotating a point 270° clockwise or 90° counter-clockwise around the origin, we apply the rule (x, y) → (-y, x).

The co-ordinates of the original parallelogram are,

J = (-6, 2)

M = (-5, -1)

L = (-3, 3)

K = (-4, 6)

After the rotation, the new co-ordinates will be,

J = (-2, -6)

M = (1, -5)

L = (-3, -3)

K = (-6, 4)

∴ The coordinates of the endpoints of the side congruent to side JM will be,

(-2, -6) and (1, -5).

Which would hold more water a teaspoon or a milliliter?

Answers

A teaspoon is a unit of measurement that is usually used for the quantities of substances utilized during cooking. To compare which among the two unit of measurement will hold more water, we are to convert these measurement to a common one. For easy calculation, we convert the teaspoon to millimeters. 

From reliable source, the number of millimeters in a teaspoon is 5. Five millimeters is obviously more than 1 millimeter. Hence, the answer is that a teaspoon will be able to hold more volume of water. 

Determine the solution of the system. Show your work.
Y = 5x – 9
Y = 2x + 6

Answers

Both define y, so they are equivalent.

5x-9=2x+6
3x-9=6
3x=15
x=5

Then plug in x into any of the equations
y=2(5)+6
y=10+6
y=16

Final answer: (5,16)

The solution is (x, y) = (5, 16). My "work" is to make use of a graphing calculator.



_____

You can subtract the second equation from the first. This gives

... 0 = 3x -15

Then, divide by 3 and add 5.

... 0 = x - 5

... 5 = x


Substitute this value into either equation to find y.

... y = 2x +6

... y = 2·5 +6

... y = 16


The strategy to subtract the second equation from the first is based on the observation that both equations give expressions for y, and the x-coefficient in the first equation is the larger of the two x-coefficients. Thus, the subtraction we chose will eliminate y and give an x-term with a positive coefficient.

A segment with endpoint M Left parenthesis 5 comma 9 right parenthesis and N Left parenthesis 4 comma 3 right parenthesis is rotated 270°. What are the coordinates of M prime and N prime?


The correct answer is : M prime (9,-5) and N prime (3,-4)

Answers

Refer to the diagram below

If we draw a line that connects the center of rotation to one of the points, say point N, and take this line as the 0° position, then we need three 'turn' of 90° to get to 270°.

Coordinate of N' (-3, 4)
Coordinate of M' (-9, 5)

Five times a number is equal to the number increased by 12

Answers

x is the number

5 times of it is 5x

it's equal to the number increased by 12 or 12+x


remember, you  can do anything to an equation as long as you do it to both sides

5x=12+x
minus x from both sides
4x=12
divie both sides by 4
x=3

the number is 3

The required expression is [tex]5n = n+ 12[/tex] and the unknown number is [tex]3[/tex]

Let the unknown number be "n"

Five times the number is expressed as 5n

The number increased by 12 is expressed as n + 12

Equating both expressions will give:

[tex]5n = n + 12[/tex]

Solve for n:

[tex]5n - n = 12\\4n = 12\\n = 12/4\\n = 3[/tex]

Hence the required expression is [tex]5n = n+ 12[/tex] and the unknown number is [tex]3[/tex]

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Staci has seven more cats then Taylor. Write an expression that illustrates how many cats Staci has. Use x to represent the number of cats Taylor has./4899345/032a37eb?utm_source=registration

Answers

x = number of cats Taylor has

Staci has seven more than this so:
x + 7 = number of cats Staci has

Complete the steps to the factor the tens. 30x40=( n x 10) x ( n x 10)=( n x n) x (10 x10)= n x 100 = n

Answers

the corrent answer is 20 please mark the brainliest if this helps

In November 2010, ING Direct was offering 2.4% interest on its Orange Savings Account, with interest reinvested quarterly.† Find the associated exponential model for the value of a $3,000 deposit after t years

Answers

First, let's convert the nominal interest(r) into effective interest rate(i). The formula is

i = (1 + r/m)^m - 1
where m is the number of quarters in a year (m = 4)
i = (1 + 0.024/4)⁴ -1
i = 0.024217

The model would then be:
Future Worth =  $3,000(1 + 0.024217)^t, where t is the number of years

Jeff wants to make an a in his math course this semester. To do so, he must have an average of 90 or above. If his test scores this semester or 88, 92 and 96 what is the score that he would need to make on his final test to attain an average on exactly 90

Answers

(88 + 92 + 96 + x) / 4 = 90
(276 + x) / 4 = 90
276 + x = 90 * 4
276 + x = 360
x = 360 - 276
x = 84 <=== he would need an 84
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One month, Ruby worked 8 hours more than Isaac, and Svetlana worked 4 times as many hours as Ruby. Together they worked 112 hours. Find the number of hours each person worked.  

Answers

R=8+I
S=4R

R+I+S=112
R+R-8+4R=112
6R=120
R=20

So therefore, Ruby worked 20 hours, Svetlana worked 80 hours, and Isaac worked 12 hours.

Find the angle measure of the hands of a clock at the given time. 5:00

Answers

At 5:00 the minute hand is on 12 and the hour hand is on 5. The angle measure of the hands of a clock is 5/12 of the total number of degrees in a circle (360°)

[tex] \frac{5}{12}*360=5*30=150^o [/tex]

Answer is 150°

The angle measured by the hands of a clock at the given time at 5:00 will be 150°.

What is an angle?

The angle is the distance between the intersecting lines or surfaces. The angle is also expressed in degrees. The angle is 360 degrees for one complete spin.

We know that the hour hand will be on 5 and the minute hand will be on 12 at 5:00 o'clock.

Then the angle measured by the hands of a clock at the given time at 5:00 will be

⇒ (360° / 12) x 5

⇒ 30° x 5

⇒ 150°

The angle measured by the hands of a clock at the given time at 5:00 will be 150°.

More about the angled link is given below.

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If a measurement follows a normal (bell-shaped) frequency curve, then percent of the population will have a z-score below .36.

Answers

Refer to the standard table for the normal distribution shown below.

From the normal distribution tables, when z < 0.36, obtain
P(z < 0.36) = 0.6406 ≈ 64 percent

Answer: 64% (nearest integer)

Mikel creates the table below to help her determine 40% of 70

Answers

40% percent times 70 is want I believe

To Find: 40 % of 70

Solution:

x % of y means = [tex]\frac{x \times y}{100}[/tex]

40 % of 70= [tex]\frac{40 \times 70}{100}=\frac{2800}{100}=28[/tex]

This is the way Mikel can determine 40 % of 70.


what do you add 15/4 to make 4

Answers

the answer would be 1/4 or [tex] \frac{1}{4} [/tex] i hope this answer helps!

What is the area of a circle with radius 14 units, to the nearest hundredth?

Answers

Take the radius and find the diameter. Then multiply the diameter by 'pi.'
14×2=28
28×pi=88

Solve x(−2) 2 =4(−2)

Answers

Final answer:

x(−2) 2 =4(−2) = -2

Explanation:

To solve this equation, we first need to understand the order of operations in mathematical equations. The acronym PEMDAS is often used to remember the order: Parentheses, Exponents, Multiplication/Division, Addition/Subtraction.

In this equation, we have parentheses and exponents. According to PEMDAS, we need to solve the parentheses first before moving on to the exponent. So, let's start by simplifying the parentheses on the left side of the equation.

x(-2)^2 = 4(-2)

= x(4) = -8

= 4x = -8

= x = -2

In the first step, we distributed the exponent of 2 to the -2 within the parentheses, resulting in (-2)^2 = (-2)(-2) = 4. This simplifies the left side of the equation to x(4) = 4x.

In the second step, we substituted the value of -2 on the left side of the equation, resulting in 4(-2) = 4x. This simplifies to -8 = 4x.

To isolate x, we divide both sides by 4, resulting in x = -2. This gives us our final answer.

In conclusion, when solving equations with multiple operations, it is important to remember the order of operations and follow it step by step. In this equation, we simplified the parentheses first, then solved for x by isolating it on one side of the equation. By following these steps, we were able to find the value of x, which is -2.

40% of a 12,000 acre forest is being logged how many acres will be logged

Answers

12000 x 0.40 = 4800

12000 - 4800 = 7200

7200 acres are being logged

hope this helps
40% = 0.40

0.40 (12,000) = 4,800

answer

4,800 acre is 40% of a 12,000 acre

Algebra problem below!


The sum of two consecutive even integers is -50

What are the numbers?

Answers

Thank you for your question!

The formula is:

x + (x + 2) = -50

Solving:

2x + 2 = -50
2x = -52
x = -26

Finding the second number:
-26 + 2 = -24

-24,-26

Hope this helps!

The 1st integer = xthe 2nd integer = x - 2 x + x + 2 = -502x + 2 = -502x = -52  x = -26 The first integer = x = -24The second integer = x - 2 = -24 - 2 = -26  The integers are -24 and -26.

Find a point on the y-axis that is equidistant from the points (4, −4) and (1, 1).

Answers

hello : 
a point on the y-axis is : P( 0, y)
PA = PB  or  PA² = PB².... A(4 , -4)    B(1,1)
(4-0)²+(-4-y)² = (1-0)² + (1-y)²
16 +y² +8y +16 = 1 + 1 -2y +y²
10y = -30
y = -3

luke scored 21 goals in 7 soccer games. if he scores goals at the same rate, how many goals will he score in 23 games

Answers

He will most likely score 69 goals so basically 3×23.
Sorry if it didnt help.

Answer:

69

Step-by-step explanation:

My bad if it's wrong

Point M is the midpoint of segment JK. Find JK when JM=6x-7 and MK=2x+3.

Answers

if M is the midpoint of JK then JM+MK=JK and JM=MK
so
6x-7=2x+3
minus 2x both sides
4x-7=3
add 7 both sides
4x=10
divide both sides by 4
[tex]x=\frac{10}{4}[/tex]
[tex]x=\frac{5}{2}[/tex]

sub back

JM=6x-7
[tex]JM=6(\frac{5}{2})-7[/tex]
[tex]JM=\frac{30}{2}-7[/tex]
[tex]JM=15-7[/tex]
JM=8

JM=MK=8
JM+MK=8+8=16=JK

[tex]x=\frac{5}{2}[/tex] and JM=8=MK and JK=16

The value of JK will be 16.

It is given that M is the midpoint of segment JK.

We have to find out the value of JK.

What will be the value of x , if 4x + 12 = 8x + 4 ?

The value of x will be 2.

As M is the midpoint of JK.

JK = MK + JM

So,

MK = JM

2x + 3 = 6x - 7

4x = 10

x =2.5

So ,

MK = 2x + 3 = 8

JM = 6x - 7 = 8

Hence ,

JK = MK + JM = 8 + 8

JK = 16

Thus , value of JK will be 16.

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Evaluate these questions
3a+2a=



c+d there is a line under this one
ad

Answers

Get photo math it would help you out with all of your math problems
Greetings!

1)
For this question we can combine the terms together as they are like:
[tex]3a+2a[/tex]
Combine like terms.
[tex]=5a[/tex]


Hope this helps.
-Benjamin


Points​ a, b,​ c, and d are collinear. in how many ways can the line be named using only these​ points

Answers

The line can be named 3 times
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