Mathematics College

Please help will give 50 points​

Please Help Will Give 50 Points

Answers

Answer 1

Answer:

1. A) Contradiction2. C) Identity3. z = ( - oo, 7)

Step-by-step explanation:

1. Simplifying

4(x + 3) = -7(6 + 2x) + 18x4x + 12 = -42 - 14x + 18x4x + 12 = 4x - 42

The left and right sides are different so the answer is:

A) Contradiction

2. Simplifying

5(x - 9) + 10x = 6x + 9(x - 5)5x - 45 + 10x = 6x + 9x - 4515x - 45 = 15x - 45

The left and right sides are identical so the answer is:

C) identity

3. Solving inequality:

-2( -3z + 3) < 2z + 226z - 6 < 2z + 224z < 28z < 7z = ( - oo, 7)
Answer 2

Answer:

1. A) Contradiction

2. C) Identity

3. z = ( - oo, 7)

Related Questions

PLEASE HELP! Square root related
5 (square root of 144 minus 2 times square root of 64)

Answers

Answer:

[tex]\huge\boxed{5(\sqrt{144}-\sqrt{64})=20}[/tex]

Step-by-step explanation:

[tex]\sqrt{a}=b\iff b^2a\ \text{for}\ a\geq0\ \text{and}\ b\geq0[/tex]

[tex]5(\sqrt{144}-2\sqrt{64})=(*)\\\\\sqrt{144}=12\ \text{because}\ 12^2=12\cdot12=144\\\sqrt{64}=8\ \text{because}\ 8^2=8\cdot8=64\\\\(*)=5(12-8)=5(4)=20[/tex]

Helppppp pleaseeere hurry

Answers

Answer:

Step-by-step explanation:

it is D=R/2T

The perimeter of a rectangle is 60m.the length is 2m less than 3 times the width.what is the area of the rectangle?

Answers

Answer:

area= 18.6 m²

Step-by-step explanation:

plz mark as brainliest if it helps

6 students can plant a garden in 5 hours. How many additional students should they get to help if they need to finish the job in 3 hours instead of 5 hours?

Answers

Answer:

i would say 8

Step-by-step explanation:

Answer:

4

Step-by-step explanation:

3 + x + 1 = 2

Thank you :)

Answers

Answer:

x = -2

Step-by-step explanation:

Please mark Brainliest when able, for showing work.

the United States Air force has 19 women for every 81 men enlisted. if a squadron has 500 members, approximately how many are women

Answers

Answer:

95

Step-by-step explanation:

19 x 5.0 = 95

Hope this helps

Tasha has 3/4 bags of soil. Each bag covers 6 square feet. How many square feet will tasha be able to cover with all of the bags of soil?

This is a re-post because i really need this answer and nobody commented last time :'D

Answers

Answer:

8

Step-by-step explanation:

Two anhles of trisngle measure 12 and 40. What is the measure of the third angle of the triangle?

Answers

Answer:

180-(12+40)

180-52=128

Step-by-step explanation:

100 POINTS + BRANLIEST

Answers

Answer: 45 degrees I think.

Step-by-step explanation: Based off of looks alone, one could conclude that 3x is approximately 0.5 degrees larger than 2x, 2x is approximately 90 degrees, and that x is approximately half of 2x. so based purely off of observation, it appears that x is approximately 45 degrees. you can multiply x by the number by in it in each instance.

x=45, 2x=90, and 3x=135

Please check if you have a protractor.

Answer:

The value of x is 45°

Step-by-step explanation:

We could conclude that 3x is approximately 0.5 degrees larger than 2x, 2x is approximately 90 degrees, and that x is approximately half of 2x.

x = 45°

2x = 2(45) = 90°

3x = 3(45) = 135°

Graph y = x + 4 on the graph

Answers

Answer:

lifet

Step-by-step explanation:

which of the following equations correctly represents the law of sines?
A. sin A/a x sin B/b = sin C/c
B. sin A/a = sin B/b=sin C/c
C. sin A/a + sin B/b= sin C/c
D. (sin A/a)^2 + (sinB/b)^2 = (sin C/c)^2


I think it's B.

Answers

Answer:

B

Step-by-step explanation:

You're correct! The law of sines does not involve any operations, it only has equal signs to show equivalency.

Answer:B

Step-by-step explanation:

You're correct! The law of sines does not involve any operations, it only has equal signs to show equivalency.

What are the coordinates of the image of vertex F after a reflection across the line y = –x?

(–1, –3)
(3, –1)
(1, 3)
(–3, 1)

Answers

Answer:(-3,1)

Step-by-step explanation:

Answer:

D. (-3,1)

Step-by-step explanation:

(2x^2+5) solution find x

Answers

did u type this correctly?

Please help me quickkkk

Answers

Answer:

6 e

Step-by-step explanation:

Answer:

the mr is 57 degrees

Step-by-step explanation:

support your answer. Problem #5 is for Honor's only.
1. Find the coordinate of the midpoint of the segment for: 2 and 4.
2. Find the coordinates of the midpoint of
3. The midpoint of One endpoint is Find the
other endpoint.
4. Find the distance between:
5. Find the distance between Elm Station
and Symphony Station.
61
North
adeon
Central
Cedar
2 Symphony
City Plaza
-2 o 2 4
Oak
-4 South
sley
-6
+
Page 1 / 2
6. What is the perimeter and area of the below ligure?

Answers

Answer:

c

Step-by-step explanation:

Bob did chores for his neighbor. The first day he earned $8. Then he earned $10 a day for
two weeks. If he took one day off each week, how much did he earn?

Answers

Answer: $128

Step-by-step explanation: So first Bob earned 8 dollars. Then he started earning 10 dollars a day every week for 2 weeks. that would have been 148 dollars (plus the 8 dollars he earned in the beginning), but he took a break once a week, subtracting 20 dollars from his pay, giving him 128 dollars in total.

Let me know if this was helpful! :D

Luis uses cubes to represent each term of a pattern based on a recursive function. The recursive function defined is f(n + 1) = f(n) + 4, where n is an integer and n ≥ 2. The number of cubes used in each of the first two figures is shown below. How many cubes does Luis use in the third, fourth, and fifth figures of the pattern? Fill in the blanks.

Figure 1: 9 cubes

Figure 2: 13 cubes

Figure 3:
cubes

Figure 4:
cubes

Figure 5:
cubes

Answers

Answer:

17 cubes 21 cubes25 cubes

Step-by-step explanation:

Given function

f(n + 1) = f(n) + 4

The first two values are given

f(1) = 9   f(2) = 13

The following terms are

f(3) = 13 + 4 = 17

Figure 3 = 17 cubes

f(4) = 17 + 4 = 21

Figure 4 = 21 cubes

f(5) = 21 + 4 = 25

Figure 5 = 25 cubes

As per Luis' pattern:

Figure 3: 17 cubes.

Figure 4: 21 cubes.

Figure 5: 25 cubes.

What is an arithmetic sequence?

A series of integers called an arithmetic progression or arithmetic sequence (AP) has a constant difference between the terms.

The recursive function f(n + 1) = f(n) + 4 means that to find the number of cubes in the next figure, Luis needs to add 4 cubes to the number of cubes in the previous figure.

In Figure 1, there are 9 cubes.

To get Figure 2, Luis adds 4 cubes, which results in 13 cubes.

To find the number of cubes in Figure 3, Luis needs to add 4 cubes to the number of cubes in Figure 2, which results in 17 cubes.

To find the number of cubes in Figure 4, Luis adds 4 to the number of cubes in Figure 3, resulting in 21 cubes.

To find the number of cubes in Figure 5, Luis adds 4 cubes to the number of cubes in Figure 4, which results in 25 cubes.

Therefore, the number of cubes in the third, fourth, and fifth figures is 17, 21, and 25, respectively.

To learn more about the arithmetic sequence;

https://brainly.com/question/29616017

#SPJ7

Solve the following equation and show your work: 13=-3(x-4)-8

Answers

The answer is x=-3
Refer to photo attached below for further explanation:

A Z score is -3 and the sample's Mean is =30 and the Standard Deviation is =6. The raw score is __________.

Answers

Answer:

-9 I Think this is the answer????????

Step-by-step explanation:

Utility companies usually charge their customers based on the number of kilowatt-hours their customers consume in a period. Suppose the function A(p)=0.096p+19.50 represents the monthly charge, A, in dollars for a customer with Electric Company A consuming p kilowatt-hours of power. The function B(p)=0.104p+17.75 represents the monthly charge, B, in dollars for a customer with Electric Company B consuming p kilowatt-hours of power. Analyze the functions by interpreting the slope and y-intercept for each function in terms of the context for this situation. Then assess how the slope and y-intercept of Electric Company A compare with the slope and y-intercept of Electric Company B in this situation.

Answers

Step-by-step explanation:

A(p) = 0.096p + 19.50

Company A charges a monthly fee of $19.50, and charges a rate of $0.096 per kilowatt-hour of energy.

B(p) = 0.104p + 17.75

Company B charges a monthly fee of $17.75, and charges a rate of $0.104 per kilowatt-hour of energy.

Company A has a higher monthly fee, and company B has a higher rate.

Is the function g(x)=-x^2 a translation,compression, stretch, or reflection of the parent function, f(x)=x^2

Answers

Reflection, a -x with be the opposite of x so it’s a reflection over the x axis

Given the function f(x)=x^2+2x+1, find:

f(−7)

Answers

Answer:

36

Step-by-step explanation:

f(x)=x^2+2x+1

Let x = -7

f(-7)=(-7)^2+2*-7+1

     = 49-14+1

     = 36

Ans: 36

f(-7)=(-7)^2+2(-7)+1

49-14+1

35+1

36

Danielle wants to paint a ceramic planter. The total price is the cost of the
planter plus an hourly painting rate of $6. Determine how many hours Danielle
painted if she spent $9 on the planter and her total bill was $33.

Answers

Answer:

4 hours

Step-by-step explanation:

Danielle spent 4 hours painting. You can get this answer by subtracting how much money she spent on the pot from the total bill. This gets you 24. Then you divide this by 6, the amount of money if costs to paint an hour, which gets you 4.

The ratio of a to b is 3:5. The ratio of c to d is 1:6. What is the ratio of ac to bd?

Answers

Answer:

A.

Step-by-step explanation:

a/b = 3:5 = 3/5

c/d = 1:6 = 1/6

So if you want ac to bd you would get

3 * 1

-------

5 * 6

3 / 30 = 1/10

Is 253,897,615.3 a irrational or rational

Answers

Answer:

rational the

Step-by-step explanation:

Please hurry!! Avery must hand out 270 fliers. So far.
she has handed out 90% of them. How
many fliers has Avory handed out?

Answers

She has already handed out 243 :)

Answer:

243

Step-by-step explanation:

Multiply 270 x .90 = 243

Solve X- (-2) = 21 please help me

Answers

Answer:

x=19

Step-by-step explanation:

I hope this helps you out and if your feeling generous plz mark brainliest it helps me a lot thank you:)

Cell phone Plan A charges $60 per month, which includes 2GB of data, but charges $10 for each additional GB beyond 2. Cell phone Plan B charges $45 per month, which includes 2GB of data, but charges $15 for each additional GB beyond 2. Let x represent the number of additional GB beyond 2 in a month, and y represent the total charges for one month.

Answers

plan A: y = 10x + 60
plan B: y = 15x + 45

Salem wants to create a table of ratios that are equivalent to 2/3

Answers

Answer:

2/3 would be equal to 4/6, not 5/6.4/5 can't be equivalent to 2/3 either.

Step-by-step explanation:

What is the value of the expression below when w=
3?
10w^2+ 9W – 2

Answers

Answer:

10*9+9*3-2=115

Step-by-step explanation:

it may help you to understand

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