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4 years ago

How do I multiply? What is 1 times 3? I have no clue

Mathematics

2 answers:

rosijanka [135]4 years ago

8 0

Answer:

It is 3

Step-by-step explanation:

Multiplication is one of the four basic operations in arithmetic, along with addition, subtraction, and division. Multiplication can actually be considered repeated addition, and you can solve simple multiplication problems by adding repeatedly. For larger numbers, you'll want to do long multiplication, which breaks the process down into repeated simple multiplication and addition problems. You can also try a shortcut version of long multiplication by splitting the smaller number in the problem into tens and ones, but this works best when the smaller number is between 10 and 19.

Restate the problem as an addition problem.
Add the repeated number together to get your answer.
Switch to long multiplication when multiplying 2-digit or larger numbers.

egoroff_w [7]4 years ago

5 0

Answer:

Step-by-step explanation:

Multiplying is basically adding the same number a certain amount of times. So if it was 4 x 3 you could add 4 + 4 + 4 and that equals 12. You can also flip it, so you could add 3 + 3 + 3 + 3 and that also equals 12. Another example is 5 x 5 you can add 5, 5 times. So it would look like 5 + 5 + 5 + 5 + 5 which equals 25.

However, when it's a number times 1 (ex: 3 x 1) it equals itself. So even if it was 4 x 1 it would equal 4. When it's a number times 0 (ex: 3 x 0) it equals zero, always.

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The collection of all possible outcomes of a random phenomenon is called A. the sample space. B. the distribution. C. the probab

Hoochie [10]

Answer:

Option A is correct.

Sample space is the collection of all possible outcomes of a random phenomenon.

Step-by-step explanation:

- Sample Space

The sample space of a phenomenon is the set of all possible outcomes for that phenomenon.

- Distribution

The distribution of a statistical data set is defined as a listing or function showing all the possible values (or intervals) of the data and how often they occur.

- Probability

Probability describes how likely something is to happen. Probability values are usually between 0 and 1; with 0 denoting impossibility and 1 denoting total certainty.

- Census

Census is an official count or survey of a population

8 0

3 years ago

L :V --> W is a linear transformation. Prove each of the following (a) ker L is a subspace of V. (b) range L is a subspace of

iragen [17]

Answer:

a) Assume that $x,y\in\ker L$ , and $\alpha$ is a scalar (a real or complex number).

First. Let us prove that $\ker L$ is not empty. This is easy because $L(0_V)=0_W$ , by linearity. Here, $0_V$ stands for the zero vector of V, and $0_W$ stands for the zero vector of W.

Second. Let us prove that $\alpha x\in\ker L$ . By linearity

$L(\alpha x) = \alpha L(x)=\alpha 0_W=0_W$ .

Then, $\alpha x\in\ker L$ .

Third. Let us prove that $y+ x\in\ker L$ . Again, by linearity

$L(x+y)=L(x)+L(y) = 0_W + 0_W=0_W$ .

And the statement readily follows.

b) Assume that $u$ and $v$ are in range of $L$ . Then, there exist $x,y\in V$ such that $L(x)=u$ and $L(y)=v$ .

First. Let us prove that range of $L$ is not empty. This is easy because $L(0_V)=0_W$ , by linearity.

Second. Let us prove that $\alpha u$ is on the range of $L$ .

$\alpha u = \alpha L(x) = L(\alpha x) = L(z)$ .

Then, there exist an element $z\in V$ such that $L(z)=\alpha u$ . Thus $\alpha u$ is in the range of $L$ .

Third. Let us prove that $u+v$ is in the range of $L$ .

$u+v = L(x)+L(y) = L(x+y)=L(z)$ .

Then, there exist an element $z\in V$ such that $L(z)= u +v$ . Thus $u +v$ is in the range of $L$ .

Notice that in this second part of the problem we used the linearity in the reverse order, compared with the first part of the exercise.

Step-by-step explanation:

6 0

3 years ago

One leg of a right triangle has a length of 77 m. the other sides have lengths that are consecutive integers. find these lengths

ANTONII [103]

Let x and x+1 represent the consecutive integers, then x is the other leg and x+1 is the hypotenuse (because the hypotenuse must be greater than its sides).

Use Pythagorean Theorem:
a² + b² = c²
(77)² + x² = (x+1)²
5929 + x² = x² + 2x + 1
5928 = 2x
2964 = x

x+1 = 2965

Answer: The other leg is 2964 m and the hypotenuse is 2965 m

5 0

4 years ago

19) Maylin played tennis last year and played in 15 matches with each match being about 125

balu736 [363]

Answer:

1,875 minutes

Step-by-step explanation:

to find out you need to multiply 125x15

5 0

2 years ago

10+(-3 3/8 i need the answer

castortr0y [4]

10+(3*3/8) =

10+(9/8)=

10+1.125=

11.125

4 0

3 years ago