Evaluate the expression when b= -4 and x=2. b - 2x​

Answer:

346.88 meters

Step-by-step explanation:

Given that the area of the square-shaped terrain is 470 square meters.

Let a be the side of the terrain, so

Area of the square-shaped terrain, [tex]a^2=470[/tex] square meters.

Therefore, the length of one side, [tex]a=\sqrt {470}=21.68[/tex] meters.

The length of single thread wire required in circulating the square-shaped terrain = the perimeter of the square-shaped terrain

As the perimeter of a square having side a = 4a

So, the length of single thread wire required in circulating the square-shaped terrain= 4 x 21.68 =86.72 meters

Therefore, the length of 4 thread wire required in circulating the square-shaped terrain= 4 x 86.72=346.88 meters.

Answer:

the first one

Step-by-step explanation:

they meet on (-3,-$4) so just plug the numbers in

Answer:

What are we supposed to put in the boxes?!?!?!?

Step-by-step explanation:

The answer is yes                                            ....................

Answer:

y=[tex]\frac{9}{2\\}[/tex] x-13

Step-by-step explanation:

first, since it's parallel the slope has to be the same and the y-intercept has to be different.

you will have y=9/2x+b

find b, by using the points you are given so you will get

-4=(9/2) times (2)+b.

then when sloving you will get b=-13 and so the full equation will be

y=9/2x-13

Answer:

5

Step-by-step explanation:

15/3 is the same as 5 since 5*3 is 15

Answer:

A

Step-by-step explanation:

the bottom ones don't make sense, and b says if she heals then she WONT play

Answer:

10m - 3.3n - 1.8

Step-by-step explanation:

10m -(3.3n + 1.8)

10m - 3.3n - 1.8

Hope this helps and I hope u have an Amazing day!!

Answer:

B and D

Why are both of the answers to the last question correct?

An exponent is a short way to write repeated multiplication. So 212 means the same as 2 • 2 • . . . • 2 • 2.

Answer:

-2, also  yeet

Step-by-step explanation:

Answer:

-0.25

Step-by-step explanation:

xD im a bit late :P

we can pick any 2 points on the line.

let's pick, (-1, 2) and (-3, 1)

Alright, so the formula to calculate slope is in the attachment below.

If you're a bit confused on what the little 2 and 1 at the bottom of each of those numbers are representing the points. So let's say (-3, 1) is point 2. And (-1, 2) is point 1.

the variable "y" is the y-coordinate.

the variable "x" is the x-coordinate.

And all we need to do now is just sub in the values and that's your answer.

so we have the 2 y-coordinates, 1 and 2.

We subtract them. 1-2=-1

then we have the 2 x-coordinates, -1, -3

-1-3=-4

so -1/-4 is -0.25

I am not sure if this is right -___- but this is what I've been taught sooooo :?

Answer:

Welp here is the answer to your question, 372/35 in exact form. in mixed number form it is 10 22/35

Answer:

question 4.

D (x-10)

Step-by-step explanation:

question 4.

x^2 - 8x - 20

(x -10)(x+2)

x² + 8x - 20 [-20 = -2 × 10]

x² - 2x + 10x - 20 [8 = -2 + 10]

x(x - 2) + 10(x - 2)

(x + 10) (x - 2)

___________________________________________

A. x - 2

represents a factor

Answer:

2+2 = 4

Step-by-step explanation:

ok so if u put 2 fingers up and you add 2 more, you get 4

bruv

Answer:

67%

Step-by-step explanation:

This is because 67% is basically 67/100 as a fraction and 3/5 is only 60%, all you need to know is the facts about fraction to percentage

Answer:

about 13 and a third

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

Answer:

Step-by-step explanation:

The way to find slope is by y2-y1/x2-x1 which gives you slope ,but if you just want the answer its zero.

Answer:

n = 9

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Equality Properties

Step-by-step explanation:

Step 1: Define

3n - 5 = 22

Step 2: Solve for n

Answer:

25

Step-by-step explanation:

When dividing by fractions, you can multiply by the opposite reciprocal.

5 ÷ 1/5

5 x 5/1

25

Answer:

L to M is 90 degrees

Step-by-step explanation:

Hope this helps!

Answer:

180

Step-by-step explanation:

i straight line is equal to 180

Answer:

The answer i believe is y=-10/3 - 4x/3

Step-by-step explanation:

Answer:

The equation would be if y is the numbers in the sequence (like 3, 9, 27) and x is the is the number in the order (like 3 is 1, 9 is 2, 81 is 4) the the equation would be y = 3^x.

Step-by-step explanation:

Answer:

39.27

Step-by-step explanation:

The area of a semi-circle is pi times the radius squared divided by 2. So basically standard area of a circle formula (pi times the radius squared) but then you add in the extra step of dividing it by 2.

The formula looks like this:

π × r² ÷ 2

The radius is half the diameter of the circle. So basically think of it as a line to the middle of the circle. Our diameter is 10, (the diameter is the entire length of the circle. It gives us this already. If you need diameter and only have the radius add the radius together twice or multiply it by 2 to get the diameter. Fun fact..?)

and it tells us to substitute pi for 3.142.

So, plugging our numbers in we get:

3.142 x 5^2 ÷ 2 = 39.275.

Cut out the 3rd decimal place (5) as it tells us to only include the first 2 decimal places, and we finally end up with 39.27.

Hope this helps and have a nice day!

Answer:

c

Step-by-step explanation:

1/2= 0.5, 1/3= 0.33 ; 0.5+ 0.33= 0.83 or 0.8

Answer:

D i believe.

Step-by-step explanation:

Hope this helps :)

The equation with the greatest growth factor is d(t) = 400 . 3^t

Correct option is D.

As per the given data:

Equations representing the number of bacteria in four different dishes as a function of time, t in days, are given.

To find out the equation with the greatest growth factor:

Growth Factor = Term whose power is raised to t.

For option (A), Growth Factor = (5/6) = 0.834

For option (B), Growth Factor = (1/50) = 0.02

For option (C), Growth Factor = (5/2) = 2.5

For option (D), Growth Factor = (3) = 3

Hence, the equation with the greatest growth factor is d(t) = 400 . 3^t

To learn more about equation, click:

brainly.com/question/10413253

#SPJ2

Answer:

a) 1/10

b) 1/2

c) 1/2

d) 2/5

Step-by-step explanation:

Probability is the likelihood or chance that an event will occur.

Probability = Total event/Total sample space

Since there are ten ball in the bag numbered 1 to 10

S = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}

n(S) = 10

Total sample space = 10

a) If we are to get the probability of picking the number 7.

(E) = {7}

n(E) = 1

Event = 1

Pr(picking 7) = 1/10

b) a) If we are to get the probability of picking an odd number

(E) = {1, 3, 5, 7 , 9}

n(E) = 5

Event = 5

Pr(an odd number) = 5/10 = 1/2

c) a) If we are to get the probability of picking an even number

(E) = {2, 4, 6, 8,10}

n(E) = 5

Event = 5

Pr(an even number) = 5/10 = 1/2

d) a) If we are to get the probability of picking prime

(E) = {2, 3, 5, 7}

n(E) = 4

Event = 4

Pr(prime) = 4/10 = 2/5

Answer:

wouldn't they both be 88

I'm not sure if that's correct though

Answer:

x = 88

y = 88

Step-by-step explanation:

66 + 26 + x = 180 (collect like terms)

92 + x = 180 (subtract 92 on both sides)

x = 88

y = x

y = 88

They are vertical so their measures are the same.

Hope this helps ya!!

Answer:

11/9

Step-by-step explanation:

Answer: 11/9

Step-by-step explanation:

The slope is found by the change in y over the change in x

(6-(-5))/(10-1)

Simplify:

11/9