1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Tanya [424]
3 years ago
9

Math 7. Subtracting linear expressions.

Mathematics
2 answers:
Alenkinab [10]3 years ago
6 0
Are you trying to symplify it? Use the FOIL method (First Outside Inside Last)
murzikaleks [220]3 years ago
5 0
I hope this helps you




-6x-6+2x+9



-4x+3
You might be interested in
A rich woman deposits a whole number of dollars x in her bank. The next time she deposits y dollars (still a whole number). Each
grin007 [14]

Answer:

x = 12

y = 22

Total amount = $2596

Step-by-step explanation:

First let's find the value of each deposit until the 10th in relation to x and y:

1st: x

2nd: y

3rd: x + y

4th: x + 2y

5th: 2x + 3y

6th: 3x + 5y

7th: 5x + 8y

8th: 8x + 13y

9th: 13x + 21y

10th: 21x + 34y

Now, we can write a system with two equations and two variables:

2x + 3y = 90

21x + 34y = 1000

From the first equation: x = (90 - 3y)/2

Using this value of x in the second equation, we have:

21*(90 - 3y)/2 + 34y = 1000

945 - 31.5y + 34y = 1000

2.5y = 55

y = 22

Now we can find x:

x = (90 - 3*22)/2 = 12

Now, summing all the deposits, we have a total of 55x + 88y, which is equal to 55*12 + 88*22 = $2596

5 0
3 years ago
The distance between City A and City B is 250 miles. A length of 1.7 feet represents this distance on a certain wall map. City C
Xelga [282]
The scale of the map is equal to 250 miles per 1.7 feet. or 250m/1.7ft. set up as a fraction.
Divide 250 by 1.7 to get how many miles are equal to just 1 foot.
250/1.7 = 147.058824 miles per 1 foot
Multiply that times 3.06 feet (the distance between C and D on the map)
147.058824m/1ft x 3.06ft = 450m
The actual distance between City C and City D should be 450 miles.
4 0
2 years ago
Section 5.2 Problem 17:
Elina [12.6K]

This DE has characteristic equation

4r^2 - 12r + 9r = (2r - 3)^2 = 0

with a repeated root at r = 3/2. Then the characteristic solution is

y_c = C_1 e^{\frac32 x} + C_2 x e^{\frac32 x}

which has derivative

{y_c}' = \dfrac{3C_1}2 e^{\frac32 x} + \dfrac{3C_2}2 x e^{\frac32x} + C_2 e^{\frac32 x}

Use the given initial conditions to solve for the constants:

y(0) = 3 \implies 3 = C_1

y'(0) = \dfrac52 \implies \dfrac52 = \dfrac{3C_1}2 + C_2 \implies C_2 = -2

and so the particular solution to the IVP is

\boxed{y(x) = 3 e^{\frac32 x} - 2 x e^{\frac32 x}}

8 0
2 years ago
A container has 1 pink block and 3 green blocks. Juan wants to make the probability of randomly selecting a black block equal to
alex41 [277]

Answer:

4

Step-by-step explanation:

He should add 4 black blocks because there are a total of 4 other blocks, and in order to have a probability of 50%, the number of black blocks needs to be equal to the total number of the other colored blocks.

8 0
3 years ago
A library building is in the shape of a rectangle. Its floor has a length of (3x + 5) meters and a width of (5x − 1) meters. The
AleksAgata [21]
The problem says that the expression (3x + 5)(5x − 1) <span>represents the area of the floor of the building in square meters. Therefore,  to solve this problem you have to follow the proccedure shown below.

 1. First, to simplify the expression (3x + 5)(5x − 1) you must apply the distributive property. Then, you obtain:

 15x</span>²-3x+25x-5

 2. Then, you have:

 15x²+22x-5

 3. As you can see, the correct answer is the last option:  15x²+22x-5
7 0
2 years ago
Other questions:
  • What are the points of discontinuity? Are they removable? y = (x-5) / x^2 - 6x + 5
    15·1 answer
  • The farmer planted an equal number of each type of tree.oak trees were one of the 3 types of trees planted.what was the total nu
    13·2 answers
  • The point P(x, y) is on the terminal ray of angle theta. If theta is between pi radians and 3pi/2 radians and csc theta= -5/2, w
    7·2 answers
  • Pls answer this correctly
    10·1 answer
  • The money in michelle's bank account increased from $250 to $500. what was her percent of increase?
    10·2 answers
  • Select the type of equations<br><br> A. Consistent<br> B. Equivalent <br> C. Inconsistent
    7·1 answer
  • Type the correct answer in each box.
    13·1 answer
  • Write an argumentative essay for or against using public money to maintain national landmarks, such as the Gateway Arch in St. L
    9·2 answers
  • Bill was looking at 13 different colors to paint his bedroom he liked about 2/3 of the colors. about how many colors did he like
    6·1 answer
  • IS this statement true.When two conjugates are multiplied, the product is a
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!