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3 years ago

Witch expression is equivalent to( 3x+4)-(7x+2)

Mathematics

2 answers:

max2010maxim [7]3 years ago

3 0

Answer: -4x+2

Step-by-step explanation: Simplify

MAVERICK [17]3 years ago

3 0

The answers is -4x+2.

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Write an explicit formula for an, the nth term of the sequence 19,24,29

o-na [289]

Answer:

explicit formula for an, the nth term of the sequence 19,24,29

$a_1=19 ; \ a_n=a_{n-1}+5$

Step-by-step explanation:

We need to Write an explicit formula for an, the nth term of the sequence 19,24,29

In the sequence the First term a₁= 19

Common Difference d= 5

The Formula used for explicit formula is: $a_1=First \ term ; \ a_n=a_{n-1}+d$

Where d is common difference and n is nth term of sequence.

So, explicit formula for an, the nth term of the sequence 19,24,29

$a_1=19 ; \ a_n=a_{n-1}+5$

3 0

3 years ago

Paola burns 30 calories walking 10 minutes. At this rate, how many calories will she burn in

Dominik [7]

Answer:

Step-by-step explanation:

Divide 30 by 10. You get 3. Take three and multiply it by 15. Your answer is 45.

3 0

3 years ago

On a coordinate plane, triangle B C D has points (negative 4, 1), (negative 2, 1), (negative 4, 3). Triangle B prime C prime D p

tatyana61 [14]

9514 1404 393

Answer:

90° CCW

Step-by-step explanation:

The transformation from B to B' is ...

B(-4, 1) ⇒ B'(-1, -4)

(x, y) ⇒ (-y, x) . . . . . matches the transformation for 90° CCW

8 0

3 years ago

The probability of being a universal donor is 6% (O-negative-blood type). Suppose that 6 people come to a blood drive.' a) What

Tcecarenko [31]

Answer:

$Mean = 0.36$

$SD = 0.5817$

$P(x=3) = 0.003588$

Step-by-step explanation:

Given

Let

A = Event of being a universal donor.

So:

$P(A) = 0.06$

$n = 6$

Solving (a): Mean and Standard deviation.

The mean is:

$Mean = np$

$Mean = 6 * 0.06$

$Mean = 0.36$

The standard deviation is:

$SD = \sqrt{np(1-p)}$

$SD = \sqrt{6*0.06*(1-0.06)}$

$SD = \sqrt{0.3384}$

$SD = 0.5817$

Solving (b): P(x = 3)

The event is a binomial event an dthe probability is calculated as:

$P(x) = ^nC_x * p^x * (1-p)^{n-x}$

So, we have:

$P(x=3) = ^6C_3 * 0.06^3 * (1-0.06)^{6-3}$

$P(x=3) = ^6C_3 * 0.06^3 * (1-0.06)^3$

$P(x=3) = 20 * 0.06^3 * (1-0.06)^3$

$P(x=3) = 0.003588$

7 0

3 years ago

Write a word phrase for p - 4

andrew11 [14]

Four less than p.
Is that correct?

8 0

3 years ago

Read 2 more answers