PRE CALC HELP 50 PTS

PRE CALC HELP 50 PTS

Answers

Answer 1

Answer:

[tex] \sec( \frac{x}{3} ) + 4 > 2 - \sec( \frac{x}{3} ) \\ 2 \sec( \frac{x}{3} ) > - 2 \\ \sec( \frac{x}{3} ) > - 1 \\ \boxed{y = \sec( \frac{x}{3} )} \\ \boxed{y = - 1}[/tex]

B) is the right answer.

Answer 2

Answer:

B

Step-by-step explanation:

We want to solve the inequality:

[tex]\displaystyle \sec\Big(\frac{x}{3}\Big)+4>2-\sec\Big(\frac{x}{3}\Big )[/tex]

First, we can add sec(x/3) to both sides:

[tex]\displaystyle2 \sec\Big(\frac{x}{3}\Big)+4>2[/tex]

Subtracting 4 from both sides yields:

[tex]\displaystyle 2\sec\Big(\frac{x}{3}\Big)>-2[/tex]

And dividing both sides by 2 yields:

[tex]\displaystyle \sec\Big(\frac{x}{3}\Big)>-1[/tex]

Therefore, we can graph the following two functions:

[tex]\displaystyle y=\sec\Big(\frac{x}{3}\Big)\text{ and } y=-1[/tex]

Where our solutions will be all the intervals where y = sec(x/3) is above the line y = -1.


Related Questions

10 11 12 13 14 take 10 minutes or 5 minutes of your time to help me please

Answers

Answer:

im on it:) gimme a quick sec and ill come back and edit

Step-by-step explanation:

please mark brainliest, give a thanks, and rate a five stars if this helped! feel free to ask anymore questions if you need any more help! thanks!

(lol optional): add my sc: tealyn337

I WILL GIVE BRAINLIST AND 50 POINTS
The students in a class made graphs to keep track of the number of pages they read in their books.

Which graph shows a proportional relationship?
A.
B.
C.
D.

Answers

Step-by-step explanation:

A proportional relationship graph would show that the points can be arranged in a line that passes through the origin.

All of the points in Graphs B, C and D cannot be connected in 1 straight line, hence they are not proportional relationships.

Only Graph A shows a proportional relationship.

Answer:

a

Step-by-step explanation:

Easy geometry question. Show only a little work.

Answers

Answer:

Where is question

Step-by-step explanation:

can someone answer this for me please?​

Answers

Answer:

[tex]\sqrt{34[/tex]

Step-by-step explanation:

distance formula:

The city of Port Angeles wants to estimate the percentage of likely voters within its city limits who favor a tax increase to build a new community center. A researcher for the city collects responses from 400 likely voters within the city limits. Match each description with a concept (individual, variable, population, sample, parameter, or statistic).
Description f. A likely voter within the city limits.
The set of responses of all likely voters within the city limits.
The percentage of all likely voters within the city limits favoring the tax increase.
The percentage of the 400 likely voters within the city limits favoring the tax increase.
The response of a likely voter within the city limits.
The set of responses of the 400 likely voters within the city limits.
Concept
a. individual
b. parameter
c. population
d. sample
e. variable
f. statistic

Answers

Answer:

a. individual - A likely voter within the city limits

b. parameter - The percentage of all likely voters within the city limits favoring the tax increase.

c. population - The set of responses of all likely voters within the city limits.

d. Sample - The set of responses of the 400 likely voters within the city limits.

e. variable - The response of a likely voter within the city limits.

f. statistic - The percentage of the 400 likely voters within the city limits favoring the tax increase.

Step-by-step explanation:

Explaining the concepts :

An individual simply means each single data point in a dataset.

A set of individuals in a certain make up of interest is called a population.

A sample is defined as a random subset which is representative of the population.

Parameter is a statistical value derived from a population

Statistic is a statistical value derived from a sample

Variable - describes the attributes or characteristic of a sample or population.

a. individual - A likely voter within the city limits

b. parameter - The percentage of all likely voters within the city limits favoring the tax increase.

c. population - The set of responses of all likely voters within the city limits.

d. Sample - The set of responses of the 400 likely voters within the city limits.

e. variable - The response of a likely voter within the city limits.

f. statistic - The percentage of the 400 likely voters within the city limits favoring the tax increase.

Which of the following is a solution to the system of two equations y = 3x – 7 and 4x – 5y = -20?

Answers

Answer:

x = 5, and y = 8

Step-by-step explanation:

You can solve this system by solving either of the equations for either x or y, and substituting that into the other.

Since the first equation is already defined for y, let's substitute that into the second equation:

4x - 5y = -20

4x - 5(3x - 7) = -20

4x - 15x + 35 = -20

4x - 15x = -20 - 35

-11x = -55

x = 5

We can then plug that into either of the original equations to find y:

y = 3x - 7

y = 3 * 5 - 7

y = 15 - 7

y = 8

We can also verify our answer by plugging one of the values into either of the original equations and seeing what we get:

4x - 5y = -20

4x - 5 * 8 = -20

4x - 40 = -20

4x = 20

x = 5

So we know the answer is correct.  x is equal to five, and y is equal to eight.

Please help me !!!!!!

Answers

Answer:

A

Step-by-step explanation:

Hope it helps!

Answer:

i think its b

Step-by-step explanation:

Sam lives 8 miles from work and Mike lives 30 miles from work. How much farther is Mike’s trip to work than Sam’s?

Answers

22 miles,
30miles - 8 miles = 22 miles
Mikes trip to work is 22 miles farther than sam’s

B
C
55
73
А
Find m2C Round the answer to the nearest hundredth.
A. 0.85°
B 41.11°
C. 48.890
D.undefined

Help

Answers

Answer:

c

Step-by-step explanation:

Kylie buys cranberries and raspberries in the ratio of 8:9 to prepare mock tails. If she buys 64 ounces of cranberries what is the total weight of berries purchased

Answers

Answer: 136 ounces

Step-by-step explanation:

Given: The ratio of cranberries and raspberries is 8:9 .

Let quantity of cranberries= 8x , quantity of raspberries = 9x

If quantity of cranberries = 64 ounces

[tex]\Rightarrow\ 8x=64\\\\\Rightarrow\ x=\dfrac{64}{8}\\\\\Rightarrow\ x=8[/tex]

Quantity of raspberries = 9(8) = 72 ounces

Total quantity = 64 ounces  +  72 ounces =  136 ounces

Hence, the total weight of berries purchased=  136 ounces

What is the value of x in the equation
3/4 = x/24?
a. -32
b. -18
c. 18
d. 32​

Answers

18. 18/24 simplified to 3/4. Answer is C

Answer:

( c )

Step-by-step explanation:

3/4 = x/24

24 × 3/4 = x

18 = x

so (c) is correct

Given the expression m - 5w + 3m +4n + 2w, Jeriche rewrote it as 4m - 3w + 4n while John rewrote it as 8mn - 3w Who is operatorname correct? What did the other do wrong?

Answers

Answer:

eJeriche is correct, the answer is 4m - 3w + 4n, John didn't collect the like terms correctly

Step-by-step explanation:

Answer: 4m - 3w + 4n - this is the right decision.

Step-by-step explanation:

m - 5w + 3m + 4n + 2w = m + 3m - 5w + 2w + 4n = 4m - 3w + 4n

Jericho wrote correctly, and John - not.

John put together various variables n and m, which is not allowed.

what is cheaper 6lbs for $50.00 or 6.5lbs for $60.00

Answers

Answer:

6lbs for $50.00 is cheaper

Step-by-step explanation:

Answer$50

Step-by-step explanation:

Apple stock recently closed at a price of $450 per share. Andy's mom bought Apple stock in 2010 at a price of $150 per share. What is the percentage of change in Apple shares since 2010?

___________________%

Answers

Tbh ion know but Imma guess 134

need help with this

Answers

Answer:

6/4

Step-by-step explanation:

so basically all of the fractions and answer simplify down to 2/3

escept for the 6/4, which simplies to 1.5, and not 2/3

so its 6/4

Given f(x) = -4x + 7 and g(x) = x3, choose
the expression for (fºg)(x).

Answers

Answer:

Solution,

Given,

f(x) = -4x + 7

g(x) = [tex]x^{3}[/tex]

Now,

fog(x) = f{g(x)} = f([tex]x^{3}[/tex]) = -4[tex]x^{3}[/tex]+7

In Bayside, the temperature dropped 15 degrees overnight. What would 0 represent in this situation? Hint: Where did the temperature start from the beginning?
PLS HELP ASAP! I DON'T UNDERSTAND! GIVING BRAINLIEST!

Answers

Answer:A temperature that is below zero is negative. Integers are positive and negative whole numbers.

Step-by-step explanation:

Give me 5 star please

Adam needs to build a shed and he can only use triangular frames that form a right
triangle for the corner walls. Which of the following dimensions for a triangular
frame should Adam use?
A 50 in., 110 in., 130 in.
B 25 in., 60 in., 65 in.
C 40 in., 44 in., 58 in.
D 130 in., 50 in, 60 in.

Answers

Answer:

Option B: 25 inches, 60 inches and 65 inches is the correct answer.

Step-by-step explanation:

We will use Pythagorean theorem to find out the dimensions that Adam should use.

A. 50 in, 110 in and 130 in

Using Pythagorean theorem;

[tex]a^2+b^2=c^2 \\(50)^2 + (110)^2 = (130)^2\\2500 + 12100 = 16900\\14600\neq 16900[/tex]

These dimensions will not form a right triangle.

B. 25 in, 60 in, and 65 in

[tex](25)^2 + (60)^2=(65)^2\\625+3600= 4225\\4225=4225[/tex]

These dimensions of the frame will form a right triangle.

C. 40 in., 44 in., 58 in.

[tex](40)^2+(44)^2=(58)^2\\1600+1936=3364\\3536\neq 3364[/tex]

These dimensions will not form a right angled triangle.

D. 130 in., 50 in, 60 in

The larger dimension represents the hypotenuse in right angled triangle.

[tex](50)^2+(60)^2=(130)^2\\2500+3600=16900\\6100\neq 16900[/tex]

These dimensions will not form a right angled triangle.

Hence,

Option B: 25 inches, 60 inches and 65 inches is the correct answer.

Can someone help me with the work please I did it I want to make sure it great please someone look at it please

Answers

Answer:

whar that so easy

Step-by-step explanation:

yes is all correct I just check it but check it on a calculator too

Solve for x, pleaseee helppp, I will mark you as a brainliest!

Answers

Answer:

[tex]x = 24.8394847[/tex]

[tex]x = 13.69707998[/tex]

[tex]x = 36.24913792[/tex]

[tex]x = 10.72380529[/tex]

Step-by-step explanation:

[tex]1.[/tex]

[tex] {c}^{2} = {a}^{2} + {b}^{2} [/tex]

[tex]c = \sqrt{ {a}^{2} + {b}^{2} } [/tex]

[tex]c = \sqrt{ {16}^{2} + {19}^{2} } [/tex]

[tex]c = \sqrt{256 + 361} [/tex]

[tex]c = \sqrt{617} [/tex]

[tex]c = 24.8394847[/tex]

[tex]x = 24.8394847[/tex]

[tex]x \approx24.8[/tex]

[tex]2.[/tex]

[tex] {c}^{2} = {a}^{2} + {b}^{2} [/tex]

[tex] {a}^{2} = {c}^{2} - {b}^{2} [/tex]

[tex]a = \sqrt{ {c}^{2} - {b}^{2} } [/tex]

[tex]a = \sqrt{ {16.5}^{2} - {9.2}^{2} } [/tex]

[tex]a = \sqrt{272.25 - 84.64} [/tex]

[tex]a = \sqrt{187.61} [/tex]

[tex]a = 13.69707998[/tex]

[tex]x = 13.69707998[/tex]

[tex]x \approx13.7[/tex]

[tex]3.[/tex]

[tex] {c}^{2} = {a}^{2} + {b}^{2} [/tex]

[tex]c = \sqrt{ {a}^{2} + {b}^{2} } [/tex]

[tex]c = \sqrt{ {30 \div 2}^{2} + {33}^{2} } [/tex]

[tex]c = \sqrt{ {15}^{2} + {33}^{2} } [/tex]

[tex]c = \sqrt{225 + 1089} [/tex]

[tex]c = \sqrt{1314} [/tex]

[tex]c = 36.24913792[/tex]

[tex]x = 36.24913792[/tex]

[tex]x \approx36.2[/tex]

[tex]4.[/tex]

[tex] {a}^{2} = {c}^{2} + {b}^{2} [/tex]

[tex] {a}^{2} = {c}^{2} - {b}^{2} [/tex]

[tex]a = \sqrt{ {25}^{2} - {16}^{2} } [/tex]

[tex]a = \sqrt{625 - 256} [/tex]

[tex]a = \sqrt{369} [/tex]

[tex]a = 19.20937271[/tex]

[tex] {c}^{2} = {a}^{2} + {b}^{2} [/tex]

[tex] {a}^{2} = {c}^{2} - {b}^{2} [/tex]

[tex]a = \sqrt{ {c}^{2} - {b}^{2} } [/tex]

[tex]a = \sqrt{ {22}^{2} - { \sqrt{369} }^{2} } [/tex]

[tex]a = \sqrt{484 - 369} [/tex]

[tex]a = \sqrt{115} [/tex]

[tex]a = 10.72380529[/tex]

[tex]x = 10.72380529[/tex]

[tex]x \approx10.7[/tex]

Courtney drives 279 miles in 6 hours. What is her unit rate (miles per hour)? Show your written steps to earn full credit.

Answers

Answer:

46.5 kilometer per hour

Step-by-step explanation:

plz brainliest :)

#CarryOnLearning

Answer:

Step-by-step explanation:

It's hard to show how this is done other than providing an answer.

r = d/t

d = 279 miles

t = 6 hours.

r = 279/6

r = 46.5 miles / hour

PLEASEHELP!


ANSWER CHOICES:
A)189
B)329
C)161
D)84

Answers

Answer:

329

Step-by-step explanation:

Explain Mistake and Find Correct Answer

Answers

angles opposite each other are equal as opposed to add up to 180

so

5x = 100

x = 20

Help please :) lol thank u

Answers

Answer:

120

Step-by-step explanation:

do 12 x 10 you get 120

hopes this helps can I pls have brainlest

Answer:

78 ft

Step-by-step explanation:

Find the area of the triangle by multiplying 7 x 6 and subtract that by the area you get from the shaded region so 120 - 42= 78 ft

Solve the following equation.
7(x - 2) = 3(x + 4)
X = ?

Answers

Answer:

x=6.5

Step-by-step explanation:

Don't worry I just know

Answer:

X = 13/2

Step-by-step explanation:

7(x-2)=3(x+4)

Distribute

7x - 14 = 3x + 12

-3x from both sides

4x -14 = 12

Add 14

4x = 26

Dive by 4

X = 13/2

If u simplify 26/4

What is the sample space of rolling a 6 sided number cube? SELECT ALL THAT APPLY
1
2
3
4
5
6

Answers

Answer:

Its all of them or just 6

Step-by-step explanation:

PLEASE ANSWER THIS QUESTION FOR ME I WILL GIVE YOU BRAINLEST PLZ

Answers

Answer:

43/13  or  1.0769 = 1

Step-by-step explanation:

I think is 678 because when i answer it i got it right

12 divided by 1/6?!?????????????????

Answers

Answer:

2

Step-by-step explanation:

Its the correct answer trust me

Answer:

72

is the answer

Step-by-step explanation:

Penny makes 5 liters of applesauce. She saves 0.38 liter for dinner and puts the rest in jars.


If each jar holds 0.66 liters, how many jars can she fill?

Answers

Step-by-step explanation:

¹1litre =100cl

5 litres =500cl

0.66cl=y

cross multiply

500÷0.66 =7

A class has 24 people and 1/6 of them have blue eyes what fraction of class has blue eyes using 24 as denominator

Answers

Answer:

16/24

Step-by-step explanation:

4/6 = 16/24

Answer: 4/24

Explanation: Multiply the amount of people in the class by the fraction of the class that has blue eyes.

The amount of people in class who have blue eyes: 24 x 1/6= 4

24 represents the total amount of people in the class. And 4 represents the amount of people in the class with blue eyes. You set up the fraction with the amount of blue-eyed people on top, as the numerator. And the total number of people as the denominator.

Once again here’s what it should look like: 4/24


Hope this helps!



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