Mathematics High School

Anyone know how to answer this

Answers

Answer 1

Answer:

Step-by-step explanation:

The average rate of change of function f(x) from x = a to x = b is

[tex] \dfrac{f(b) - f(a)}{b - a} [/tex]

Here we have

a = -1

b = 2

f(a) = f(-1) = 1

f(b) = f(2) = 64

[tex] \dfrac{f(b) - f(a)}{b - a} = [/tex]

[tex] = \dfrac{f(2) - f(-1)}{2 - (-1)} = [/tex]

[tex] = \dfrac{64 - 1}{2 + 1} [/tex]

[tex] = \dfrac{63}{3} [/tex]

[tex] = 21 [/tex]

Related Questions

Tyrone has already typed 100 words for an essay and can type 35 words per minute. Vanessa has already typed 120 words and can type 30 words per minute. In how many minutes will Tyrone and Vanessa have typed the same number of words?

Answers

Answer:

cant help you, but thanks for the points

What is the slope of this line?
Enter your answer as a whole number or a fraction in simplest form in the box.

Answers

Answer:

slope= 1/4

Step-by-step explanation:

8-5 over 8-(-4)= 3/12=0.25 = 1/4

I/4 8-5 over 8-(-4) = 3/12 = 0.25 = 1/4

write an equation in slope intercept form for the line with slope 1/3 and y-intercept -3

Answers

Answer:

y = [tex]\frac{1}{3}x-3[/tex]

Step-by-step explanation:

(i) Find i in terms of P and A.

(ii) If 2500 is invested 3 years ago has a present value of 2650, find the rate of interest, i (correct to one decimal place)

Answers

Answer:

See below

Step-by-step explanation:

Given formula:

[tex]A=P(1+i/100)^3[/tex]

(i)

Solve for i:

[tex]A/P=(1+i/100)^3[/tex][tex]\sqrt[3]{A/P}=1+i/100[/tex][tex]\sqrt[3]{A/P} -1=i/100[/tex][tex]i=100(\sqrt[3]{A/P} -1)[/tex]

(ii)

P = 2500, A = 2650, find i:

[tex]i =100(\sqrt[3]{2650/2500} -1)[/tex]i ≈ 2.0%

help plssah
answer the question...

Answers

Answer:

Step-by-step explanation:

GIVING BRAINLIEST
A submarine is traveling along the surface of the ocean when they spot a pod of dolphins ahead. To avoid the dolphins, the submarine will dive and travel through the ocean. If the submarine wants to be 1.1 nautical miles below the dolphins after traveling 2.5 nautical miles, what dive angle must the submarine make? Write only the number rounded to the nearest angle.

Answers

Answer:

26 degrees

Step-by-step explanation:

The attached image shows how I interpret this question, and I assume you're meant to use trigonometry to solve.

From the perspective of the angle, we have a relationship between the opposite side, the hypotenuse, and the angle. Because the 2 sides are the opposite and the hypotenuse, we need the sine function, and because the angle is the unknown, we need the inverse sine function.

(soh cah toa)

[tex]sin(x)=\frac{opposite}{hypotenuse}\\\\sin^{-1}(\frac{opposite}{hypotenuse})=x[/tex]

Now, just plug in the 2 known values and solve for the unknown:

[tex]sin^{-1}(\frac{1.1}{2.5})=x\\\\sin^{-1}(0.44)=x\\\\x=26.1039[/tex]

The angle is 26 degrees, and you can check that by doing it in reverse:

[tex]sin(26.1039)=\frac{1.1}{2.5}\\\\sin(26.1039)=0.44\\\\0.44=0.44[/tex]

Find the value of y.

Answers

Answer:

125

Step-by-step explanation:

You can find the interior angle next to the angle with the value of 100, because a straight line has an angle of 180, so that angle would be 80. You can do the same with the interior angle next to 135, with that angle having a value of 45.

The interior angles of a triangle always have the sum of 180, so to get the last interior angle add 80+45 and then subtract that from 180. That angle would be 55.

To get Y take the value of the interior angle subtract 55 from 180, which would be 125.

What is an equation of the line that passes through the points (-4, 2) and (-8, -3)

Answers

Answer:

a line through (-4,2) and (-8,-3) has slope = (2+3)/(-4+8) = 5/4 = (y-2)/(x+4)

cross multiply

5x +20 = 4y-8

5x -4y =-28

Step-by-step explanation:

A square rug covers 79 square feet of floor. What is the approximate length of one side of the rug? (approximate to the nearest hundredth foot. ) 8. 86 feet 8. 87 feet 8. 88 feet 8. 89 feet.

Answers

Answer:

8.89 feet

Step-by-step explanation:

[tex]\sqrt{79}[/tex] = 8.888, rounded to nearest hundredth would be 8.89

Which of the following transformation sequences will produce similar, but not congruent, figures?

Answers

Answer:

The selected choice (#2) is correct

Step-by-step explanation:

Any rigid transformation (moving a figure, rotating it, flipping it around will leave the transformed figure congruent with the original. Scaling it (=dilating it) will generate a new figure what is similar to the original: angles remains the same but sides are in proportion.

Jasmine is reading a book. She has finished 23 of the book and has 56 pages left to read. How many pages has she read

Answers

Answer:

She would have 33 more pages left.

Step-by-step explanation:

You would want to subtract 23 from 56.

When finding the margin of error for the mean of a normally distributed population from a sample, what is the critical probability, assuming a confidence level of 86%? 0. 14 0. 86 0. 93 0. 99.

Answers

The critical probability assuming a confidence level of 86% is;

Option B; 0.86

We are given the confidence level as 86%. This means that the probability of the mean of the normally distributed population being true is 86%.

This means that the critical probability is the value of z at 86% or 0.86

So when we find the value of z at that value, we will use it to get the margin of error.

Read more about critical probability of Confidence level at; https://brainly.com/question/16112320

the blank will be nagitve

Answers

Answer:

What would happen if someone doesn't put a negative comment in the blank?

Step-by-step explanation:

Answer:

numerical value??

Step-by-step explanation:

You have 2\3 of a pizza left from yesterday. You divide it into 4 equal pieces. What fraction of the pizza is each piece?

Answers

Step-by-step explanation:

that means we divide 2/3 by 4.

2/3 / 4 = 2/3 / 4/1 = 2/3 × 1/4 = 2/12 = 1/6

so each quarter of the remaining 2/3 pizza is actually 1/6 of the complete pizza.

HURRY I NEED IT FOR 3rd GRADE MATH

Whats 73 + 82

Answers

Answer:

155

Step-by-step explanation:

Answer: 155

Step-by-step explanation:

+82

155

Note: Your teacher will grade your response to this question to ensure you receive proper credit for your answer. 16. A triangle has side lengths of 6, 8, and 10. Is it a right triangle? Explain.

Answers

Answer:

yes

Step-by-step explanation:

6^2+8^2=10^2

following the pythagoras theorem this triangle is right triangle

BRAINLIEST
Please help only three questions

Answers

Answer:

5. x=21.9 units

6. x=14 units

7. x=31.7 units

Step-by-step explanation:

5. Assuming that the line through the middle of the triangle in 5, we can split the 18 units side into 9 and 9. Using pythagorean theorem (a^2+b^2+c^2), we can find that x is equal to [tex]\sqrt{81+400}[/tex] making x [tex]\sqrt{481}[/tex]. Rounding to the nearest tenth, we get x is about 21.9 units

6. By doing pyth. th. on one of the triangles, we get sqrt(361-289) which is sqrt(72), which is about 8.5 units. Subtracting 8.5*2 from 31, we get 14 for x

7. by doing pyth th on the smaller triangle, we get sqrt 228 and now we can do pyth th again with 28 (44-16) and sqrt228, which turns out to be sqrt (784+228) which is sqrt (1002), which when rounded the nearest tenth is 31.7

Good Luck!

Answer:

Step-by-step explanation:

So 18 is cut in half and forms 2 simmetrical right-triangles, yes? Yes.

So, if 20 is one of the collared, 9 will be the other collared and x will be the hypotenusa right? right.

x² = 20² + 9²

x² = 400 + 81

x² = 481

x = [tex]\sqrt{481}[/tex]

x =~ 21.93

x = 21.9

Here we can se a square and 2 simmetrical triangles and if the hypo of one of them is 19 the other will also be etc. So for the small triangles:

y² = 19² - 17²

y² = 361 - 289

y² = 72

y = [tex]\sqrt{72}[/tex]

y =~ 8.48

x = 31 - (2 * 8.48)

x = 31 - 16,96

x = ~14,04

x = 14.0

expand and simplify (x-2)(x-3), please help

Answers

Answer:

hope it helps you

(•‿•).........

Please help me with this question thx

Answers

Answer:

Step-by-step explanation:

can you please help me

Answers

Answer:

i think it's the 6th option

Step-by-step explanation:

Which function represents a translation of the graph of v=x^2
by 10 units to the left?
O A. v=x^2+10
O B. v=(x+10)^2
O C. y=10x^2
O D, y=(x-10)^2

Answers

Answer:

Step-by-step explanation:

That would be y = (x +10)^2.

The table below shows the incomplete values as y varies directly as
x. Calculate the missing values.
y =10 20_
x =5_ 2

Answers

Answer:

y=30

x=3

Step-by-step explanation:

~may it help you~

what is 0.3% of 200

Answers

It’s 60 because you multiple .3 by 200

How to prove p is a midpoint of AB and Q midpoint of BC

Answers

Answer:

Step-by-step explanation:

see the figure below

As O is mid point of rectangle

distance between O to AB and DC is same

also distance between O to AD and BC is same

OP and OQ are perpendiculars so it is straight

and OP divides AB into equal segments as distance between O to AD and BC is same

same goes with OQ

1. Subtract the linear expressions.

(45x−5)−(13x+4)

What is the difference?

Enter your answer in the box. Enter fractions as simplified fractions.

2. Add the two expressions.

−2.4n−3 and −7.8n+2

Enter your answer in the box.

3. Subtract the linear expressions.

(−3.6x+9.4)−(1.9x+3.6)

What is the difference?

Enter your answer in the box.

4. Subtract 5x−2 from −3x+4 .

A.2x + 2

B.8x−6

C.−8x+6

D.−8x+2
Please try and put the correct answers.
If all correct I will mark them brainilest

Answers

[tex](1)\\\\(45x -5) -(13x +4) = 45x-5-13x -4 = 32x -9\\\\\\(2)\\\\-2(4n) -3 + (-7)(8n) +2 = -8n-56n -1 = -64n -1 = -(64n+1)\\\\(3)\\\\(-3.6x+9.4) - (1.9x +3.6) = -3.6x +9.4 -1.9x -3.6 =-5.5x+5.8\\\\\\(4)\\\\-3x+4-(5x-2) = -3x+4-5x +2=-8x +6[/tex]

The diagram shows 5 triangles. All lengths are in centimetres. Which two triangles are congruent to each other

Answers

Answer:

It should be A & D

Step-by-step explanation:

These two are the only ones that have the exact same numbers on all three sides. They are congruent based on SSS.

16 x [tex]\frac{1}{8}[/tex]

Answers

The answer is 2. Because 16/8 is 2.

Answer:

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Harley downloads 8 games the total amount of available memory used for the games 57.2 gigabytes

Answers

Answer:

each game takes up 7.15 gigabytes (assuming each game takes up the same amount of storage.

Step-by-step explanation:

57.2 divided by 8 is 7.15

can someone lease tell me the answer to this question i'm abt to ask? what is 1 + 1/4?

Answers

Answer:

1 1/4 or 5/4 or 1.25

Step-by-step explanation:

simplify √5(8+3√6)
I cant figure this problem out can someone help me?

Answers

The answer is correct

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