i don’t understand this at all someone help me

Answer:

formula is y2-y1 ÷ x2-x1

- 4 - 4 = -8

20 - 8 = 12 simplify and we get

[tex] - \frac{ 2}{3} [/tex]

Answer: [tex]-\frac{2}{3}[/tex]

Step-by-step explanation:

-4-4=-8

20-8=12    [tex]\frac{-8}{12}[/tex]

Answer:

  -3x +5y = 18

Step-by-step explanation:

The inverse relation is found by swapping x and y.

Answer:

8%

Step-by-step explanation:

u have to multiply the number with 100

0.08 * 100

8%

Answer: 6.86 × 10^12

Step-by-step explanation: click link to see answer

https://www.calculatorsoup.com/calculators/math/scientificnotation.php?operand_1=9.8%2A10%5E7&operator=multiply&operand_2=7.0%2A10%5E4&action=solve

Answer:

6.86 × 10^12

Step-by-step explanation:

Answer:

i think its (5, -18) i'm pretty sure

Step-by-step explanation:

9514 1404 393

Answer:

  the number on the right needs to be positive

Step-by-step explanation:

The given equation describes a circle with an imaginary radius.

The number on the right is the square of the radius. We expect the radius to be a real number, so its square will be positive.

Answer:

63 shrimps

Step-by-step explanation:

14÷2=7

the cost of 1 shrimp

7×9=63

the cost of 9 shrimps

Answer:

see explanation

Step-by-step explanation:

Given

cosθ = - [tex]\frac{5}{13}[/tex]

This is a 5- 12- 13 right triangle

with adjacent = 5, opposite = 12 and hypotenuse = 13

In quadrant 3

sinθ < 0 and tanθ > 0 , then

sinθ = [tex]\frac{opposite}{hypotenuse}[/tex] = -  [tex]\frac{12}{13}[/tex] and

cscθ = [tex]\frac{1}{sin0}[/tex] = [tex]\frac{1}{-\frac{12}{13} }[/tex] = - [tex]\frac{13}{12}[/tex]

then

tanθ = [tex]\frac{sin0}{cos0}[/tex] = [tex]\frac{-\frac{12}{13} }{-\frac{5}{13} }[/tex] = - [tex]\frac{12}{13}[/tex] × - [tex]\frac{13}{5}[/tex] = [tex]\frac{12}{5}[/tex]

Answer:

until you only look at the thousands and hundreds place and if the hundred is 5 or more you round the thousands up one

so  3,842,532 rounded the the nearest 1000 is 3,843,000

Answer:

-29a-6b+59c

Step-by-step explanation:

Answer:

he had $250.00 more at the end of lunch

Step-by-step explanation:

Consider the function F(x)= x³ +½x² −2x +3. Use calc and algebra to find any and all stationary points on the graph of the function.Precalc need help ASAP

Solution:

the above function has more than one root or more than one solution. The derivative of the function represents the slope of the tangent line to the curve

F(x)= x³ +½x² −2x +3, F'(x) = 3(x3-1)+(1/2)(2)(x2-1)-2(x1-1)+0

F'(x)=3x2+x-2 is the slope of the tangent line

setting the slope =0 and solving the quadratic equations, you find all the

critical points of interest

3x2+x-2=0, solve by factoring (3x-2)(x+1)=0, then 3x-2=0, x= 2/3

and x+1=0, x=-1 substituting these values of x in the original equation

you get the corresponding values of F(x) such that;

F(x)= x³ +½x² −2x +3, F(x)=(2/3)3+1/2(2/3)2-2(2/3)+3

= 8/27+4/18-4/3+3 = 8/27+2/9-4/3+3/1 = 59/27 and the first point is

(2/3, 59/27)

F(x)= x³ +½x² −2x +3, F(x)=(-1)3+1/2(-1)2-2(-1)+3

= -1+1/2+2+3 = 9/2 and the 2nd point is ( -1, 9/2)

these two points represents points where the slope of the tangent line to the curve is 0 and could be either maximum or minimum points

You can also find the y intercepts where x = 0 F(x)= x³ +½x² −2x +3, setting x = 0, y= F(x)=3 and the point ( 0,3) is a y intercept setting y = 0, then x intercepts can be found upon solving the equation x³ +½x² −2x +3 =0

Answer:

2 2/9

Step-by-step explanation:

Answer:

value of what?

Step-by-step explanation:

I don't see the question

Answer:

2 ( -2 ) -8 = -12

3 ( -3 ) -18 = -27

Step-by-step explanation:

#3 is 1920 cubic inches

#4 i cant see the shape

Explanation:

the height is 1 inch so we can disregard that.

58 squared minus 38 squared is 1920 because if it was a square it would be side length 58 but we have to subtract 20 to find what is missing.

Answer:

60

Step-by-step explanation:

(I am a bit confused of the wording / layout, but I think this is what you need!)

Key notes:

- "the product of" means multiplication

12 * 5 = 60

Answer:

60

Step-by-step explanation:

12x5=60

[tex]\\ \sf\longmapsto 0.25[/tex]

[tex]\\ \sf\longmapsto \dfrac{25}{100}[/tex]

[tex]\\ \sf\longmapsto \dfrac{5}{20}[/tex]

[tex]\\ \sf\longmapsto \dfrac{1}{4}[/tex]

Answer:

[tex] \frac{1}{4} [/tex]

Step-by-step explanation:

Hey there,

[tex]0.25 \\ \\ = \frac{25}{100} \\ \\ = \frac{25 \div 25}{100 \div 25} \\ \\ = \frac{1}{4} [/tex]

Hope this helps you.

Let me know if you have any other questions:-):-)

Answer:

Could you explain all step by step what is the number or percentage we have to build or add to the swimming pool ?

Step-by-step explanation:

Answer:

The percentage of people who are opposed to building both the swimming pool and the soccer complex is 1 – 0.25 = 0.75.

Step-by-step explanation:

Answer:

1.(2,4)

2.(-4,2)

3.(-2,8)

Answer:

2/3

Step-by-step explanation:

-7 - -1  = -6

-5 - 4 = -9

-6/-9= 2/3

Hope this helped!

Answer:

2/3

Step-by-step explanation:

-1-(-7) / 4-(-5)

6/9 = 2/3

9514 1404 393

Answer:

Step-by-step explanation:

The mnemonic SOH CAH TOA can help you remember the trig ratios:

  Sin = Opposite/Hypotenuse

  Cos = Adjacent/Hypotenuse

  Tan = Opposite/Adjacent

With respect to angle A, the sides are Adjacent = 24; Opposite = 7, Hypotenuse = 25. Then the desired trig ratios are ...

  tan(A) = 7/24

  sin(A) = 7/25

  cos(A) = 24/25

Answer:

-9x^4+6x^3+x^2+5x+2

Step-by-step explanation:

Answer:

Step-by-step explanation:

First Sheet, First Question

1) D

2) D

3) B

4) D

First Sheet, Second Question

a) SQR 16

b) 7/8, sqr -42

c) 3.692, 4 pie, sqr 1/4

Answer:

2πr=circumference

Step-by-step explanation:

small circle has 12 inc length so it's circumference is 2*π*12 =24π

big circle has 14 İnc Length so it has 2*π*14=28

Answer:

Simplify the expression using the definition of an imaginary number  

i=√-i

iStep-by-step explanation:

Answer:

C. -12 feet per minute

Step-by-step explanation:

This question is really just asking for the slope of this situation. So the best way to find the answer is to find the change in y over the change in x. In this case, y is the depth and x is the time. So, it would be -48/4 because the diver went down 48 feet when 4 minutes passed. Then, simply divide, -48/4, which equals -12 feet/1 minute.

Answer:

the ancwer is -2 -1 0 1 2

Step-by-step explanation:

Yes

Answer:

3/20

Step-by-step explanation:

1/10=2/20

2/10=4/20

Answer:

hddhbd b v c c GG ffdrgbmnkhu

Answer: $574

Step-by-step explanation:

574 - 250 = 324