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2 years ago

"Death Valley Hike"

Mathematics

2 answers:

Amanda [17]2 years ago

7 0

I would go with Either E or A

Goryan [66]2 years ago

7 0

Answer:

I'm pretty sure E

Step-by-step explanation:

think about it he traveled 70 feet in 5 minutes so he would still be below sea level

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G(x)=2x-2 f(x)=x^2+3x find (g of f)(2+x)

Bumek [7]

Answer:

Step-by-step explanation:

G(f(2+x))=g(2+x)^2+3(2+x)=2(2+x)^2+3(2+x)-2=2(4+4x+x^2)+6+3x=8+8x+2x^2+6+3x=2x^2+11x+14

6 0

2 years ago

A gallery has 25 paintings in its permanent collection, with display space for 10 at one time. How many different collections ca

Anastaziya [24]

You need to know in how many ways you can choose 10 out of 25 items when order does not matter. This is a combination problem.

$_{n}C_{r} = \dfrac{n!}{(n - r)!r!}$

$_{25}C_{10} = \dfrac{25!}{(25 - 10)!10!}$

$_{25}C_{10} = \dfrac{25 \times 24 \times 23 \times 22 \times 21 \times 20 \times 19 \times 18 \times 17 \times 16 \times 15!}{15! \times 10 \times 9 \times 8 \times 7 \times 6 \times 5 \times 4 \times 3 \times 2 \times 1}$

$_{25}C_{10} = \dfrac{25 \times 24 \times 23 \times 22 \times 21 
\times 20 \times 19 \times 18 \times 17 \times 16}{10 \times 9 \times 8 \times 7 \times 6 \times 5 \times 4 \times 3 
\times 2 \times 1}$

$_{25}C_{10} = \dfrac{23 \times 11 \times 20 \times 19 \times 2 \times 17}{1}$

$_{25}C_{10} = 23 \times 11 \times 20 \times 19 \times 2 \times 17$

$_{25}C_{10} = 3,268,760$

6 0

3 years ago

Read 2 more answers

The average price of a gallon of milk has constantly increased by $0.07 per year. In 2002, a gallon of milk cost $2.75. Which eq

Travka [436]

Answer:

5000o

Step-by-step explanation:

5 0

2 years ago

Find the measure of

FrozenT [24]

Answer:

158.4 degrees.

Step-by-step explanation:

A line is 180 degress in total so subtract 21.6 from 180. Then you get 158.4

8 0

2 years ago

Find the area of the trapezoid. Answer options: 8sqrt2, 4sqrt3, 12.0, 16sqrt2

Elis [28]

Answer:

= 8sqrt2

Step-by-step explanation:

Area of a trapezium is given by the formula;

1/2(a+b)h ;

Where a and b are the parallel sides and h is the perpendicular height.

a = 3 cm, b= 5 cm

To get; h, we use the Pythagoras theorem;

h² = 3² - 1²

h² = 8

h = √8

= √4√2

= 2√2

Thus;

Area = 1/2(3 +5) 2√2

= 1/2 ×8 × 2√2

 = 8√2 cm² or 8sqrt2 cm²

8 0

2 years ago