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3 years ago

9

of 13 possible books, you plan on taking 7 with you on a vacation. How many different collections of 7 books can you take?

1 answer:

ella [17]3 years ago

5 0

1 i think is the answer.

You might be interested in

Which number is prime 15, 24, 41, 62

Juli2301 [7.4K]

Forty-one is a prime number because it can multiply itself by one.

7 0

3 years ago

PLZ HELP...Enter in standard form the equation of the line passing through the given point and having the given slope.

Alenkinab [10]

Standard form for the equation of the line is

$$y=-\frac{2}{3} x-\frac{25}{3}$

Solution:

Given point is (2, –5).

slope of the line m = $-\frac{2}{3}$

Here, $x_1=2, y_1=-5$

Equation of a line passing through the point:

$y-y_1=m(x-x_1)$

$$y-(-5)=-\frac{2}{3} (x-(-5))$

$$y+5=-\frac{2}{3} (x+5)$

$$y+5=-\frac{2}{3} x-\frac{10}{3}$

Subtract 15 from both sides of the equation.

$$y+5-5=-\frac{2}{3} x-\frac{10}{3}-5$

$$y=-\frac{2}{3} x-\frac{25}{3}$

Standard form for the equation of the line is

$$y=-\frac{2}{3} x-\frac{25}{3}$

7 0

3 years ago

Describe a real world situation that uses the variable x the expression 1/2x when the value of x is not known.

Airida [17]

Um well its quite common when going to the store and something is 50% off

6 0

3 years ago

3x + y = -2<br> x = 2 - y

andrezito [222]

Answer:

$y = 4 \\ x = - 2$

Step-by-step explanation:

$3(2 - y) + y = - 2 \\ 6 - 2y = - 2 \\ 2y = 8 \\ y = 4 \\ \\ x = 2 - 4 \\ x = - 2$

I hope that uesful for u :)

5 0

2 years ago

Let g(x) = 2x and h(x) = x2 + 4. Evaluate (h ∘ g)(1). 2 8 10 4

Klio2033 [76]

Hello!

You can solve this by plugging 1 into $g(x)$ and plugging the result into $h(x)$ .

$g(x) = 2x$
$g(1) = 2(1)$
$g(1) = 2$

$h(x) = 2x + 4$
$h(g(1)) = 2(2) + 4$
$h(g(1)) = 4 + 4$
$h(g(1)) = 8$

Answer:
<span>(h ∘ g)(1) = 8</span>

8 0

3 years ago