Mathematics High School

please give a detailed explanation, im genuinely trying in this class​

Please Give A Detailed Explanation, Im Genuinely Trying In This Class

Answers

Answer 1

Answer:

C) [tex]\frac{\sqrt{6} }{14}[/tex]

Step-by-step explanation:

We multiply the conjugate (7 √2) with the denominator and numerator:

[tex]\frac{\sqrt{3} }{7\sqrt{2} } *\frac{-7\sqrt{2}}{-7\sqrt{2}} \\\\\frac{\sqrt{6} }{14}[/tex]

I also just used my calculator and it gave me this

Related Questions

Gustus bought three pairs of shoes. Each pair costs $19.98. What is the total amount he spent on shoes, before tax?

Answers

19.98 x 3 = 59.94
he spent a total of $59.94

The total amount Gustus spent on shoes, before tax is $59.94.

Given that, Gustus bought three pairs of shoes. Each pair costs $19.98.

What is multiplication?

Multiplication is an operation that represents the basic idea of repeated addition of the same number. The numbers that are multiplied are called the factors and the result that is obtained after the multiplication of two or more numbers is known as the product of those numbers.

Now,

Total amount =Number of pairs of shoes ×Cost of one pair of shoe

= 3 ×19.98

= $59.94

Therefore, the total amount Gustus spent on shoes, before tax is $59.94.

Learn more about the multiplication here:

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Find the value of x.

Answers

Answer:

x = -7

Step-by-step explanation:

All triangle angles add up to 180

84 + x + 59 + x + 51 = 180

2x + 194 = 180

2x = 180 - 194

2x = -14

x = -7

George bought a model of a Viking ship for $68. If he paid
$5.10 in sales tax, what was the sales tax rate?

Answers

Answer:

We can convert 6.75% to a decimal by dividing by 100.

If x is the price of the house, then the sales tax is 0.0675x. The price of the house and the sales tax add up to $319,000.

x+0.0675x=319,000

Combe terms on the left.

1.0675x=319,000

Finally, divide both sides by 1.0675.

x=319,0001.0675=298,829.04

Please help me I’ll mark brainliest!!!!

Answers

Answer:

Step-by-step explanation:

Michelle sells umbrellas. 2 9 of her umbrellas are blue, the rest are red. 5 11 of the red umbrellas have plastic covers. What fraction of the Michelle's red umbrellas that do not have plastic covers?

Answers

Answer: 14/33

Step-by-step explanation:

Since 2/9 of the umbrella are blue, the fraction for red umbrellas will be:

= 1 - 2/9

= 7/9

Since 5/11 of the red umbrellas have plastic covers. The fraction for those without plastic covers will be:

= 1 - 5/11

= 6/11

Therefore, the fraction of Michelle's red umbrellas that do not have plastic covers will be:

= 6/11 × 7/9

= 42/99

= 14/33

Which is the correct answer?

Answers

Answer:

The first one

Step-by-step explanation:

!!HELP ASAP!! No Links.
The domain (input values) of the cosine function is:
A. all negative and positive angle measures.
B. angle measures less than 2 π π radians.
C. angle measures less than 90°.
D. angle measures between 0 and π π radians.
* I can’t miss anymore please help*

Answers

Answer:

all negative and positive angle measures.

Step-by-step explanation:

The domain of the cosine function is: all negative and positive angle measures.

What is domain of a function?

"It is a set of all possible input values for which a function is well defined."

We know,

A cosine function i.e., f(x) = cos(x) is defined for any real value of x.

This means, the domain of the cosine function is, all negative and positive angle measures.

Therefore, the correct answer is option (A).

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Ms. Cathy bought a package of pens. Out of every 10 pens, 6 are black. If there are 20 pens in the pack, what fraction of the pens in the pack are black? What percent of the pens in the pack are black?​

Answers

Answer:

12/20 or 60%

Step-by-step explanation:

Please select the best answer from the choices provided.

Answers

Answer: 34

Step-by-step explanation:

SOH-CAH-TOA

To find the angle, find the inverse cosine of the adjacent side over the hypotenuse. ArcCos(72/87)=34

How many teachers are there in your school? How many male teachers and female

teachers are there?

I) Write the ratio of male teachers to the female teachers.

ii) Write the ratio of male teachers to the total number of teachers.

iii) Write the ratio of total number of teachers to the female teachers.v​

Answers

why are you sad please don't worry I will tell you what to do with me now you know I am what

tell whether the angles are complementary or supplementary. Then find the value of x​

Answers

Answer:

12) complementary,   x=15

13) complementary, x = 35

x+ (x-20) = 90

x+x+20=90

2x=70

x=35

14) supplementary, x=31

2x+3x+25=180

5x=155

x=31

15) <1 = 130 degrees

 <2 = 50 degrees

<3 = 130 degrees

16) x=53

x+2x+21=180

3x=159

x=53

What is the answer and can you please explain how to do the work.

Answers

Answer:

28in

Step-by-step explanation:

you cut the face in shapes you recognize how to do the area of. Then find the numbers of the shapes that might be missing, then add them all up.

I see a rectangle, square, and square.

A = 10×2

A = 20in

A = 2x2

A = 4

A = 2x2

A = 4

add the areas up you get 28in

2. The table below shows the amount that a catering company charges based on the
number of people at an event. Which of the following equations shows the
relationship between c, the amount the company charges based on p, the number of
people at the event?
People (p)
F. c = 16p
25
G. C = 75p + 13
50
Total Charge (c)
$400
$725
$1,050
$1,375
75
H. p = 13c + 75
100
J. c = 13p + 75

Answers

Answer:

The answer is j

Step-by-step explanation:

The equations shows the relationship between c and p is p= 13c + 75.

What is Equation?

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

We have table which shows amount that a catering company charges based on the number of people at an event.

So, the equation that can framed from the table as

(y- 400)= (725- 400) / (50-25)  . (x-25)

y- 400 = (325/ 25) (x-25)

y-400 = 13(x-25)

y-400 = 13x - 325

y = 13x - 325 + 400

y= 13x + 75

or p = 13c+ 75

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Jackson bought a jar of 240 marbles. The percent bar graph shows the percentage of each color marble in the jar.





How many of the marbles are yellow?

Answers

Answer:

72 marbles are yellow

Step-by-step explanation:

Describe the error in the work shown.

Answers

In the third step, to get rid of the cubed root you have to have a cubed exponent as it shows with (y^3)^4. However, it takes the 4 out instead of the 3. You're supposed to take the 3 out, and the answer is supposed to be xy^4/4

Please show work

I'll give brainliest ​

Answers

Answer:

7

Step-by-step explanation:

a right angle is 90 degrees so

90=76+2x        subtract 76 from both sides

-76 -76

________

14=2x                divide 2 from both sides

_   ___

2     2

7=x

Check:

76+(2*7)=90 correct

                                               

Answer:

x=7

Step-by-step explanation:

76°+2n=90°

2x=90-76

[tex] \frac{2x}{2} = \frac{14}{2} [/tex]

[tex]x = 7[/tex]

hope it helps...

Please find where the minimum value occurs. And find the minimum value.

Answers

Answer:

The minimum value would be -4.

Be sure to clearly label each part of your response as Part A, Part B, and Part C.

Part A: If the product of x and 3 is y, write an equation to represent the relationship between the two variables.

Part B: Explain your work in Part A.

Part C: Create a table of values to display five solutions to the equation. Write the solutions as ordered pairs.

Answers

Answer:

Part A: y = 3x

Part B: The relationship of y to x is y is 3 times as much as x.

Part C: (0,0), (1,3), (2,6), (3,9), (4,12)

Step-by-step explanation:

Part A: The product of x and 3 (3 times x) is (equals) y. So we can write this linear equation as y = 3x.

Part B: The linear equation is a representation of the relationship between y and x. Y is equivalent to three times x.

Part C: To create solutions to the linear equation, simply plug in a value of x to output a y.

x = 0 -> y = 3(0) = 0; (0,0)

x = 1 -> y = 3(1) = 3; (1,3)

x = 2 -> y = 3(2) = 6; (2,6)

x = 3 -> y = 3(3) = 9; (3,9)

x = 4 -> y = 3(4) = 12; (4, 12)

Cheers.

The price of a skateboard is reduced by 25%. The original price was $120. Find the new price.

Answers

Answer:

New price = 90 dollars

Price is reduced 25% from 120 so,

120 - 30 = 90

Amount of discount = 30

I NEED THIS ASAP!!
The average length of a female dolphin is about 171 inches (in). What is this length in feet (ft) and inches (in)?

Answers

Answer:

14.25ft

171 in

Step-by-step explanation:

Once sales tax is included, a $500 fancy watch ends up costing $525. What is the sales tax
percentage?

Answers

Answer:

5%

Step-by-step explanation:

since 25 is 5% of 500, the sales tax is 5%.

Find the GCF of
[tex] {6x}^{4} - {24x}^{3} [/tex]
​

Answers

Here ya go
Math.way is the way to go ^v^
Hope ya have a good one

In a polling station, there were 900 registered voters. During an election 10% of the registered voters did not cast their votes. The rest cast their votes to Ahmed, Babu and Chambuko in the ratio 3:2:1.If 30 votes were spoilt,how many votes did Ahmed get?​

Answers

Answer:

Ahmed got 390 votes

Step-by-step explanation:

Here, we want to know the number of votes obtained by Ahmed

from the question, there were 900 registered voters

10% did not cast their votes

The number that didn’t cast their votes will be;

10% of 900

= 10/100 * 900 = 90

So the rest 90% casted and this value will be 900-90 = 810

810 people casted their votes

30 votes were spoilt;

The number of valid votes is thus;

810 - 30 = 780

Ahmed got a ratio of 3 in 3:2:1

The total value here is 3 + 2 + 1 = 6

So what Ahmed got will be;

3/6 * 780

= 780/2 = 390

Find the probability of getting 3 heads and 1 tail when flipping a coin 4
times. (write your answer as a reduced fraction)

pls

Answers

Answer:

The probability is 4/16 = 1/4

Step-by-step explanation:

To get 3 heads, means that one gets only one tail. This tail can be either the 1st coin, the 2nd coin, the 3rd, or the 4th coin. There are only 4 outcomes which have three heads....hope this helped

A zoo starts off with 8 monkeys, and the monkeys population
doubles every year. How many monkeys are in the zoo after 4
years?
monkeys

Answers

Answer:

32

Step-by-step explanation:

64 because the first year you’ll have 8 monkeys which doubles for the second year where you’ll have 16 monkeys. in the third year they will be 32 and it doubles in the last year making the total 64

the width of a rectangule is 4 feet and the diagonal length of the rectangle is 13 feet, which mesurment is closest to the length of this rectangle in feet

Answers

Answer:

52 feet

Step-by-step explanation:

Answer:9 feet

Step-by-step explanation:

Find x.
A.2.14

B.10

C.22.8

D.35

Answers

A is your answer just multiply it by 14 then add it by 5 it looks as if all sides are equal.

which is a solutiom (x-3)(x + 9)=-27?​

Answers

The solution is x= 0,-6

Answer:

x = 0, -6

Step-by-step explanation:

(0 - 3)(0 + 9) = (-3)(9) = -27

(-6 - 3)(-6 + 9) = (-9)(3) = -27

A loggerhead sea turtle decided to swim to grab some lunch! She swam 4 miles west and 3 miles south until she stopped and found a delicious crab to eat. What is the distance between the sea turtle's start point and where she found the crab? Round to the nearest tenths place, if necessary.

Answers

Answer:

5 miles

Step-by-step explanation:

The Pythagoras theorem : a² + b² = c²

where a = length = 4

b = base= 3

c = hypotenuse

4² + 3²

16 + 9 = 25

√25 = 5

What's the plura form l of
[tex] \huge\mathfrak\pink{formula} \ [/tex]
​

Answers

I believe that the answer is formulae
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