What is the zeroth term? 5, 15, 45, 135, ...

Answer:

The distributive property tells us how to solve expressions in the form of a(b + c). The distributive property is sometimes called the distributive law of multiplication and division. ... Then we need to remember to multiply first, before doing the addition!

Step-by-step explanation:

Answer:

3x + 8y = 60 ; x + 3y = 22

Step-by-step explanation:

Answer:

0.2172<x<0.2668

Step-by-step explanation:

The formula for calculating the confidence interval is expressed as;

CI = xbar ± (z*s/√n)

xbar is the average = 0.242ppm

z is the z score at 95% confidence = 1.96.

s is the standard deviation = 0.04pm

n is the sample size = 10

substitute the values into the formula;

CI = xbar ± (z*s/√n)

CI = 0.242 ± (1.96*0.04/√10)

CI = 0.242 ± (1.96*(0.04/3.1623))

CI = 0.242 ± (1.96*(0.01265))

CI = 0.242 ± (0.02479)

CI = (0.242-0.02479, 0.242+0.02479)

CI = (0.2172, 0.2668)

Hence a 95% confidence interval for the mean mercury content of coal from this source is 0.2172<x<0.2668.

Answer::

Tens: 7 Hundredths: 0 Ten Thousandths: 3

Step-by-step explanation:

The numbers before the decimal points don't have "-th" at the end, numbers after the decimal do.

Closest to the left of the decimal: ones, tens, hundreds, thousands....

Closest to the right of the decimal: tenths, hundredths, thousandths, ten thousandths....

Answer:

the answer is infinitely many solutions

Answer:

maybe 5.5 feet ( half of 11)

Answer:

The sum of interior angles of given polygon is 900°

Step-by-step explanation:

A regular polygon is a n-sided figure with n sides and the length of all sides is same.

In the diagram, we have a polygon with 7 sides.

The formula given is used to calculate the sum of interior angles of a polygon

[tex]Sum\ of\ interior\ angles = (n-2)*180[/tex]

Here n is the number of sides of polygon

In the given polygon

n = 7

So,

[tex]Sum = (7-2)*180 = 5*180 = 900[/tex]

Hence,

The sum of interior angles of given polygon is 900°

Answer:

I think it's a triangle

Step-by-step explanation:

hope this helped

Answer:

Step-by-step explanation:

3x = x + 6

3x - x = 6

2x = 6

x = 6/2

x = 3

Hope this helps

plz mark as brainliest!!!!!!

Answer:

[tex]P(X = 0) = 0.1296 [/tex]

Step-by-step explanation:

This can be solved using the binomial distribution because the cars arriving at the stop are independent of each other. This means we will use:

[tex]P(X = x) = \binom{n}{x} p^{x} q^{n - x}[/tex]

Where p is the probability of success, q = 1 - p is the probability of failure and n is the number of cars sampled.

p = 0.4

q = 0.6

n = 4

Therefore,

[tex]P(X = 0) = \binom{4}{0} 0.4^{0} 0.6^{4}[/tex]

This is equal to

[tex]P(X = 0) = 1 \times 1 \times 0.1296 [/tex]

[tex]P(X = 0) = 0.1296 [/tex]

Answer:

no

Step-by-step explanation:

A linear equation is a straight line.

Answer:

124 child tickets, and 78 adult tickets

Step-by-step explanation:

x=child

y= adult

x+y=202

10x+6y=1708

Multiply eq1 by 6

6x+6y=1212

-4x=-496

x=124

y=78

Hope this helps plz mark brainliest :D

Answer:

a watch  brand

Step-by-step explanation:

Answer:

A. increased price of a watch brand

Step-by-step explanation:

The answer is A increased price of a watch brand

Got 100% on the test

Answer:

the answer is (-1,2), hope this helps.

Answer: a process that changes the composition of rocks causing them to break down

Step-by-step explanation:

hopes this helps

Answer:

A process in which ice wears away at rocks over a long period of time.

Step-by-step explanation:

I just took the test and got it correct.

Answer: the answer is 8

Step-by-step explanation:

-6 + 8 = 2 (y)

Answer:

32

Step-by-step explanation:

you need to find out which number is 40% of 80 and to do that you go 40/100 is equal to what (x) over 80-  x/80 and then you cross multiply so 100 times x is 100x = 40 times 80 which is 3200 and then divide 3200 by 100 so you get 32

Answer:

10

Step-by-step explanation:

22+22=44

64-44=20

20/2=10

Answer:

There might be more than one way to approach this one. Here is my way:

In a word problem, always write down the information you have, clearly identifying what any variables represent. If you don't, it could lead to confusion later.

Let's let b represent the speed of the bus. Don't use a different variable for the speed of the car. Since we know it is 10 km/hr faster, let   b+10   represent the speed of the car.

Let t represent the time it takes the bus to travel 200 km.  Since the car takes 1 hour less, use  t-1  to represent the time it takes the car.

Our basic formula for this problem is   distance = rate x time

For the bus,  b·t = 200 km

For the car,  (b+10)·(t-1) = 200 km    Be sure you're clear on these equations. Again, each equation is that vehicles speed times the amount of time it takes. Each vehicle goes 200 km.

If you're sure you understand the two equations, we an go on.

Since both expressions are equal to 200, they are equal to each other, so we can write

    bt = (b+10)(t-1)         Now multiply on the right side, to remove the parentheses. You probably learned the FOIL method in class.

    bt = bt + 10t - 1b - 10        Again, be sure you understand this step before going on. You should do the multiplication yourself to make sure you can do it.

There is a   bt   on both sides of the equation, so subtract  bt  from both sides, to simplify things.

    0 = 10t - b - 10   (I've written b instead of 1b, since 1b is the same as b)

Now we have an equation with two variables in it, so we can't solve it yet. If we go back, we see that bt = 200. If we divide both sides of this by  b , we get   t = 200/b. We can put this expression in place of  t  in our equation.

    0 = 10(200/b) - b - 10

    0 = 2000/b - b - 10

The fraction makes the equation very difficult to work with, so let's multiply both sides of the equation by b, remembering that we have to multiply every term in the equation by b.

    b·0 = b(2000/b) - b·b - b·10

    0 = 2000 - b2 -10b

Let's multiply both sides of the equation by -1 and rearrange the terms. This gives us

    0 = b2 + 10b - 2000   which we can solve by factoring.  You should be able to take it from here. Be sure to answer both questions.

Answer:

e

Step-by-step explanation:

e

Answer:

The probability of a pill having more than 24.125 mg active substance is 0.0495.

Step-by-step explanation:

Let X denote the amount of active substance in each pill.

It is provided that,[tex]X\sim N(20,\ 2.5^{2})[/tex]

Compute the probability of a pill having more than 24.125 mg active substance as follows:

[tex]P(X>24.125)=P(\frac{X-\mu}{\sigma}>\frac{24.125-20}{2.5})[/tex]

                       [tex]=P(Z>1.65)\\\\=1-P(Z<1.65)\\\\=1-0.95053\\\\=0.04947\\\\\approx 0.0495[/tex]

Thus, the probability of a pill having more than 24.125 mg active substance is 0.0495.

Answer:

A

Step-by-step explanation:

Hope it helps

Answer:The awnser is

B

Step-by-step explanation:

because rodney sold half her copies

9514 1404 393

Answer:

  G  45

Step-by-step explanation:

If Z is the circumcenter, it is equidistant from the vertices T, U, V. That is, ΔZUV is an isosceles triangle and Y is the midpoint of UV.

If Y is the midpoint of UV, then UY = VY = 22.5, and UV = UY +VY = 45.

The length of UV is 45.

Answer:

x>4

Step-by-step explanation:

Answer:

119-50 pounds = 69 so 169 pounds -step explanation: blood= weight (k)

Step-by-step explanation:

y=kx

2

4.6 = 170k

finding the constant of variation

3

k= 0.02875

4

equation relates quarts of blood to weight

5

RESULT

4.6 = 170k

y= 0.02875x

y= 0.02875(175)= 5.03125

Answer:

Ww=84 lb

Step-by-step explanation:

Proportions

A direct proportion is a relation between variables where their ratio is a constant value. This means that if y and x are proportional, then:

y=k.x

Where k is the constant of proportionality.

The value of k is obtained by using the values of a specific point.

The weight of water Ww in a person's body varies directly as their body weight Wb as follows:

Ww=k.Wb

We are given a 170-lb person contains 119 lb of water. Substituting:

119=k.170

Solving for k:

k=119/170=0.7

The function is:

[tex]Ww=0.7\cdot Wb[/tex]

To find how much water is in the body of a 120-lb person, we substitute Wb=120:

[tex]Ww=0.7\cdot 120[/tex]

Ww=84 lb

Answer:

Step-by-step explanation:round the number then x it by 12

Answer:

$5673.36

Step-by-step explanation:

4 weeks in a month

12 months in a year

Therefore, they get paid twice in a month.

236.39 * 2(twice in a month) = 472.78 per month

Take this and times it by 12 since there are 12 months in a year.

472.78*12 = 5673.36

Answer:

A

Step-by-step explanation:

This is due to the fact that their is no gain. It just plateaus.

Answer:

A

Step-by-step explanation:

Sorry if I get this wrong I just thought it might be the slowest because it's going up in time but not distance.

Answer:

B

Step-by-step explanation:

20 × 30 = 600

30 × 6 = 180

5 × 6 = 30

but 20 × 5 doesn't equal 10

Answer: B

explanation: mariah was doing it right until she multiplied 20x5. she put 10, which is wrong. it’s 100

Answer:

I can't see anything to read

Answer:

um

Step-by-step explanation:

explaino moreo

Answer:

I'm not 100% sure but if I had to pick one I would go with B.

Step-by-step explanation:

Let me know if I'm correct if you decide to pick mine