A bags 4 red marbles, 5 green and 9 blue. What is the probability of picking a red marble?

2/9
1/18
1/4
2/18

Answer:

The polynomial f(x) = x^2 - 8x - 20

There were _22_ cars in the first train, _24_ cars in the second train, and _26_ cars in the third train

We know that the trains have 418, 456, and 494 seats. And are made of the same train cars, so the number of seats on each train car is a common factor of 418, 456 and 494.

We also know that no train car has more than 25 seats.

First, let's decompose the given numbers as a product of prime numbers:

418 = 2*11*19

456 = 2*2*2*3*19

494 = 2*13*19

As you can see, the factors 2 and 19 appear in the 3 numbers, 19 is the largest one that is also smaller than 25, so we conclude that each train car has 19 seats.

Then:

The first train, which has 418 seats, has:

418/19 = 22 train cars.

The second train has 456 seats, so it has:

456/19 = 24 train cars

The third train has 494 seats, so it has:

494/19 = 26 train cars.

If you want to learn more about common factors:

https://brainly.com/question/219464

#SPJ1

Answer:

We saw in the last video that when you multiply or you divide numbers, or (I guess I should say when you multiply or divide measurements) your result can only have as many significant digits as the thing with the smallest significant digits you ended up multiplying and dividing. So just as a quick example, if I have 2.00 times (I don't know) 3.5 my answer over here can only have 2 significant digits This has 2 significant digits, this has 3. 2 times 3.5 is 7, and we can get

Answer:

it will be figure 3

Step-by-step explanation:

it is the odd one of them, with inner concave

Answer:

1. AE= 312

2. AC = 161

Step-by-step explanation:

Hey there!

In order to solve the first question, we need to think of possible "C" values

Then after finding the "C" value, we can then find the "A" and "E" values

So:

AC = 24 and CE = 13

What factors do 24 and 13 have in common?

Well, only 1 since 13 is a prime number]

So this means that C has to be 1

Now we know that A is 24 and E is 13

Now we have to multiply them together

24 x 13 is 312

So AE= 312

Now we go on to the second question

We can use the same strategy we used for number one

Instead of finding what C is, we need to find out what E is, since there is E in both of the statements

So:

CE = 7 and AE = 23

What common factors do these two numbers have?

Again, only 1, meaning that E can only be 1

Now we know that C is 7 and A is 23

Since we know this, we can multiply these two numbers together and get our final answer: 161

So AC = 161

Answer:

scale factor = 2.5

Step-by-step explanation:

the scale factor is the ratio of corresponding sides, polygon P to N

scale factor = [tex]\frac{20}{8}[/tex] = 2.5

Answer:

0.179 is the answer yw btw tell me if it's right !!

The congruent parts of the triangle are:

<A ≅ < Y

< B ≅ <Z

< C≅ <X

AB ≅ YZ

AC ≅ YX

BC ≅ ZX

]ABC ≅ YZX

The shape in the image are right angle triangles. A right angle triangle is a triangle that has three sides and a right angle. Congruent triangles are triangles that have the same size and the angles.

To learn more about right angled triangle, please check: https://brainly.com/question/20694080

#SPJ1

Answer:

20!

Step-by-step explanation:

Did the test and got it correct!

Answer:

see explanation

Step-by-step explanation:

an arc of a circle is equal to the central angle subtended by the arc

central angle of arc ED = 50° ( vertically opposite angles )

then

arc ED = 50°

the central angle of arc BC = 180° - 40° - 50° = 180° - 90° = 90°

then

arc BC = 90°

the central angle subtended by arc AE = 180° - 50° = 130°

then arc AE = 130°

arc BED = arc BA + arc AE + arc ED = 50° + 130° + 50° = 230°

From the z table the critical value corresponding to the level of significance level for a two-tailed test is z = 1.64.

There are two hypotheses. First one is called null hypothesis and it is chosen such that it predicts nullity or no change in a thing. It is usually the hypothesis against which we do the test.

The hypothesis which we put against the null hypothesis is an alternate hypothesis.

The null hypothesis is the one that researchers try to disprove.

From the question, we are told that

The number of observations is greater than 50  i.e. n > 50

The  level of significance is  [tex]\alpha = 0.1[/tex]

Generally given that n >  30  then we will make use of the z table

So From the z table the critical value corresponding to the level of significance level for a two-tailed test is z = 1.64.

Learn more about null and alternative hypotheses here:

https://brainly.com/question/18831983

#SPJ4

2x²+5y²

= 2×(-4)²+5×3²

=2×16+5×9

= 32+45

=77

Answer:

The school will have 535 books.

Step-by-step explanation:

12 books a month * 5 months = 60 additional books.

60 + 475 = 535 books.

Answer:

535

Step-by-step explanation:

12*5 = 60

475 + 60 = 535

\HOPE THIS HELPS

Answer:

Discount

Step-by-step explanation:

A discount is a deduction from the original price of an item.

Answer:

They just have to go, 'cause they don't know wack

Step-by-step explanation:

The expression for the 12 more than half of the postcard will be written as:- P/2+12=P

The expression is defined as the relationship between the numbers and variables and is arranged in the form of an equation.

here we have the words in the question to convert it into an expression that is 12 more than half of the postcard.

The expression will be written as:-

P/2+12=P

Hence expression for the 12 more than half of the postcard will be written as:- P/2+12=P

To know more about expressions follow

https://brainly.com/question/723406

#SPJ1

Answer:

(x + 16)° = 141°

Step-by-step explanation:

Answer:

t=0.9

Step-by-step explanation:

Answer:

area is 630

we can multiply 2 1 by 21= 63 by 10=630

Quotient means we have to divide

Here

So

Divide

or

9/C

Answer:

[tex]\sf \dfrac{9}{C}[/tex]

Step-by-step explanation:

A quotient is produced by dividing two numbers.

"The quotient of a and b" means "a divided by b".  So the first number "a" is the numerator, and the second number "b" is the denominator of a fraction.

Therefore, "the quotient of 9 and C" is:

[tex]\sf \dfrac{9}{C}[/tex]

Answer:

Square C is comprised of the areas of squares A and B

It proves that this triangle is a right triangle

By adding the areas of two perfect squares, A and B, square C can only be the sum. This proves the Pythagorean Theorem to be true, as the ratios to the sides, and therefore the equation, will remain fixed in any scalene right triangle.

Step-by-step explanation:

It doesn't really need further explanation

I like this question, though :)

Answer:

0.6??

Step-by-step explanation:

Im not exact, im guessing 0.6> This is because

8 pizzas = one box (large box small etc..)

Dived 8 by 12. Get annswer 0.6666666666....

Roudn to nearest hundreth.

New answer = 0.6

Answer:

7.5 units

Step-by-step explanation:

since the y- coordinates of the points are equal, then the distance between them is the absolute value of the difference in the x- coordinates.

distance = | - 2.5 - 5 | = | - 7.5 | = 7.5

or

distance = | 5 - (- 2.5) | = | 5 + 2.5 | = | 7.5 | = 7.5

Answer:

[tex]x_1=-2,\: x_2=7[/tex]

Step-by-step explanation:

[tex]x(x-5)=14\\\\x^2-5x=14\\\\x^2-5x+(\frac{-5}{2})^2 =14+(\frac{-5}{2})^2\\\\x^2-5x+\frac{25}{4}=14+\frac{25}{4}\\\\x^2-5x+\frac{25}{4}=\frac{81}{4}\\ \\(x-\frac{5}{2})^2=\frac{81}{4}\\ \\x-\frac{5}{2}=\pm\frac{9}{2}\\ \\x=\frac{5}{2}\pm\frac{9}{2}\\ \\x_1=-2,\: x_2=7[/tex]

Answer:

3.5 i think

Step-by-step explanation:

r=(3V

4π)⅓=(3·180

4·π)⅓≈3.50263

Answer:

K = 3D + 6

Step-by-step explanation:

Let Mr Kim's age be denoted by K and his daughter by D.

It states that :

Then the expression will be :