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3 years ago

What number do you subtract from 3 to get 10?

Mathematics

2 answers:

scZoUnD [109]3 years ago

7 0

3 - x = 10
-x = 10 - 3
-x = 7
x = -7 <===

sergeinik [125]3 years ago

7 0

3-10 ( count backwards or use calculator)

= -7

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Solve for x 3(x - 2) = 6x - 12

nalin [4]

Answer:

The answer is 2

Step-by-step explanation:

Here's how I got it:

3(x - 2) = 6x - 12

Multiply 3 times x and 3 times 2, this is what you would get

3x - 6 = 6x - 12

Then, subtract the lowest x with the bigger X, this way you would have x on one side:

3x - 6 = 6x - 12

-3x -3x

This is what you should have after this:

-6 = 3x - 12

Now, to get the variable (letter that represents a number) by itself, you have to add 12 to both sides like this:

-6 = 3x - 12

+12 +12

You would get this:

6 = 3x

Finally, you have to get x by itself, so you have to divide 3 on both sides like this

6/3 = 3/3 x

That's why, your answer is 2

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3 years ago

5 and 4i What is the distance

s2008m [1.1K]

Answer:

=√41

Steps:

D=√(5-0)²+(4-0)² = √25+16 = √41

The answer for this question is =√41

1: D=√(5-0)²

2: +(4-0)²

3: = √25+16

4: = √41

Please mark brainliest

Hope this helps.

3 0

2 years ago

Show all your work to graph f(x) = −2(x − 4)^2 + 2.

Lelu [443]

Answer:

The answer to your question is

Step-by-step explanation:

Data

f(x) = -2(x - 4)² + 2

Process

1) Assign values to x and evaluate the function to get y.

x f(x) y

0 -2(0 - 4)² + 2 -30

1 -2(1 - 4)² + 2 -16

2 -2(2 - 4)² + 2 - 6

3 -2(3 - 4)² + 2 0

4 -2(4 - 4)² + 2 2

5 -2(5 - 4)² + 2 0

6 -2(6 - 4)² + 2 -6

2.- Plot the points (see the graph below)

3.- Join the points (see the graph below)

6 0

2 years ago

A virus jumps from monkeys to humans. The number of people P(t) who have been infected with the virus t weeks after the jump gro

telo118 [61]

Answer:

e. None of the above is correct.

Step-by-step explanation:

The general formula for exponential growth is;

P= a(1 + r)^t

Where;

P = total number infected after a given time interval

a = initial number of infected people

r = growth rate of infection

x= time taken in weeks

Hence;

5000= 10(1 + 1.78)^t

5000/10 = (1 + 1.78)^t

500 = (1 + 1.78)^t

log 500 = tlog(1 + 1.78)

t = log 500/log(1 + 1.78)

t = 2.699/0.444

t = 6 weeks

3 0

2 years ago

sports team named Philadelphia Streets has a probability of (2/3) for winning each game against their division rivals Hockeytown

navik [9.2K]

Answer:

$E(X) = 8$

Step-by-step explanation:

For each game, the Philadelphia Streets team can only have two outcomes. Either they win, or they do not win. The outcome of any particular game is independent from an outcome of any other game. This means that we can solve this problem using concepts of the binomial probability distribution.

Binomial probability distribution

The binomial probability is the probability of exactly x successes, with probability p, on n repeated trials, and X can only have two outcomes.

The expected value of X is given by the multiplication of p and n.

In this problem, we have that:

They play 12 games, so $n = 12$ .

Philadelphia Streets has a probability of (2/3) for winning each game against their division rivals Hockeytown, so $p = \frac{2}{3}$ .

What is the expected value of X?

$E(X) = 12*\frac{2}{3} = 8$

8 0

3 years ago