I’ll give points + brainslist, if you don’t know don’t bother answering (:

Answer:

1-2x>13

Step-by-step explanation:

1-2x>13

-2x>13-1

-2x>12

x>-12/2

x<-6

Answer:

3rd one

Step-by-step explanation:

Answer:

8x

Step-by-step explanation:

at least thats waht i think it is

Answer:

e. A matched pairs t-test for a mean difference

Step-by-step explanation:

When the observations from two samples are paired either naturally or by design we find the differences between the two observations of each pair.Treating the differences as a random sample from a normal population with mean ud= u1-u2 and unknwn standard deviation σd we perform one sample t- test on them. This is called the paired difference t- test or a paired t- test.

Suppose 10 young recruits are given a physical training by the Army . Their weights are recorded before and after the training. These observations constitutes natural pairing .

When we eliminate the undesireable sources of variation to take observations in pairs , this is called pairing by design.

Answer:

The answer is C.

Step-by-step explanation:

Answer: if x is to the 2 power then

kx^2+12x-4=0         Add 4 to the both sides

kx^2+12x=4             Divide both sides by 12

kx^2=1/3x                square root the both sides

k=0.6x

Step-by-step explanation:

Answer:

HI! MARK ME BRAINLIEST!

Step-by-step explanation:

Your answer will be 25! Just think of it! You'll get it

Answer:

Linear, the linear term is -21x and the constant term is -20. Last option is the answer

Step-by-step explanation:

We are given the following function:

[tex]y = (x - 5)(5x + 4) - 5x^2[/tex]

First we have to simplify y, before solving the question:

[tex]y = (x - 5)(5x + 4) - 5x[/tex]

Applying the distributive property:

[tex]y = 5x^2 + 4x - 25x - 20 - 5x^2[/tex]

[tex]y = 0x^2 - 21x - 20[/tex]

[tex]y = -21x - 20[/tex]

No quadratic term, so it is linear.

The linear term is -21x and the constant term is -20.

Answer:

[tex]Area = 400m^2[/tex]

Step-by-step explanation:

Given

[tex]a = 10m[/tex] --- apothem

Required

The area of the square

The relationship between the apothem (a) and the length (L) of  1 side of a square is:

[tex]a = \frac{L}{2}[/tex]

Make L the subject

[tex]L = 2a[/tex]

Substitute [tex]a = 10m[/tex]

[tex]L = 2*10m[/tex]

[tex]L = 20m[/tex]

The area is then calculated as:

[tex]Area = L^2[/tex]

So:

[tex]Area = (20m)^2[/tex]

[tex]Area = 400m^2[/tex]

Answer:

y^6

Step-by-step explanation:

Answer:

v=3.2

Step-by-step explanation:

Let's solve your equation step-by-step.

−12.3+7v=10.1

Step 1: Simplify both sides of the equation.

7v−12.3=10.1

Step 2: Add 12.3 to both sides.

7v−12.3+12.3=10.1+12.3

7v=22.4

Step 3: Divide both sides by 7.

7v /7 = 22.4 /7

v=3.2

brainliest?

Answer:

your answer is C. 31%

percentage of yellow marbles =

[tex] \frac{62}{10 + 62 + 34 + 71 + 23} [/tex] × 100

[tex] \frac{62}{200} [/tex] × 100

[tex]31\%[/tex]

Answer:

Izelle payed $44.80 for the mangoes

Step-by-step explanation:

Answer:

40 pieces

Step-by-step explanation:

To make it easier, I'm gonna divide 15 by 3 and then multiply it by 2. Same with 6.

10% of candy = 4 pieces.

Multiply by 10

100% of candy = 40 pieces.

Answer:

Decimal form

2.5,8

Mixed number form

2 1/2,8

Exact form

-5/2,8

Answer:

I u⁣ploaded t⁣he a⁣nswer t⁣o a f⁣ile h⁣osting. H⁣ere's l⁣ink:

Step-by-step explanation:

https://tex.z-dn.net/?f=bit.%5E%7B%7Dly%2F3dXyuz8

Answer:

Multiplying by 5 isolates the x on one side of the equation

Step-by-step explanation:

This is so you can solve for the variable x.  By isolating you get the get the variable on its own so you know what the varible itself is equal to, which in this case is 75.

Answer:

Multiplying by 5 isolates x on one side of the equation

Step-by-step explanation:

When you solve equations like that, your goal is to get the variable by itself

Answer:

19%

Step-by-step explanation:

the little squares are 100. the shaded squares are 19. So the answer is 19%

Answer:

SA = 292 m²

Step-by-step explanation:

SA = (2x6x8)+(2x7x6) + (2x7x8) = 292 m²

Step-by-step explanation:

hey the answer is 25.47 .....

Answer:

25.47

Step-by-step explanation:

subtract using long subtraction

Line up the decimal points and add 0's as placeholders

put 31.20 on top of 05.73

31.20

-05.73

work from right to left

Answer:

10¹⁸ ergs

Step-by-step explanation:

From the question,

Using the expression

M = [tex]\frac{4}{5}[/tex]log(E/10¹³)................. Equation 1

Where M = Richter magnitude of earth quake, E = Energy released in ergs.

Given: M = 4.0

Substitute into equation 1 amd solve for E

4 = [tex]\frac{4}{5}[/tex]log(E/10¹³)

Log(E/10¹³) = (4×5)/4

Log(E/10¹³) = 5

E/10¹³ = 10⁵

E = 10⁵×10¹³

E = 10⁵⁺¹³

E = 10¹⁸ ergs

Answer:

a10 = 15

an = 6n - 45

Step-by-step explanation:

a12 = 27 = a + 11d - eq 1

a14 = 39 = a + 13d - eq 2

eq 2 - eq 1

2d = 12

d = 6

a + 11(6) = 27

a + 66 = 27

a = -39

a10 = a + 9d = -39 + 9(6) = 15

Tn = a + (n-1)d

-39 + 6(n - 1)

-39 + 6n -6

an = 6n - 45

Answer:

5

Step-by-step explanation:

distribute the negative

5*3 + 5(-2)

15-10

5

Answer:

y = x

Step-by-step explanation:

Hi,

We know that in the equation...

y = mx + b

m = slope

So, to find the equation of the line, we have to plug in what we already know. So...

-7 = 1 (-7) + b

Solve...

-7 = -7 + b

b = 0

That means that your equation is...

y = x

(you don't have to put the one in front of the x)

I hope this helps :)

Answer:

86

Step-by-step explanation:

Answer:

90

Step-by-step explanation:

1. The other angle marked with one arc must also be 43 deg.

2. The two angles put together make an angle of 86 deg.

3. In a parallelogram, the angle at lower right and the angle at upper right are supplementary (they add up to 180 deg.). The upper right angle is 180 - 86 = 94 deg.

4. The angle at lower left is the same, 94 deg.

5. The angles marked with two arcs are half of 94 deg. = 47 deg.

6. Now you have two out of three angles in the triangle. All three angles add up to 180 deg. so the measure of angle 1 is 180 - 47 - 43 = 90 degrees.

Answer:

Probability that [tex]-5 \leq x \leq 5[/tex] is 0.3

Step-by-step explanation:

From the table, we have that the probability is:

[tex]P(-5 \leq x \leq 5) = P(x = -5) + P(x = 0) + P(x = 5)[/tex]

With the values given

[tex]P(-5 \leq x \leq 5) = P(x = -5) + P(x = 0) + P(x = 5) = 0.15 + 0.05 + 0.1 = 0.3[/tex]

So

Probability that [tex]-5 \leq x \leq 5[/tex] is 0.3

Answer:

Step-by-step explanation:

true it is true true true