All categories

3 years ago

PLEASE HELP D:

Mathematics

1 answer:

garik1379 [7]3 years ago

4 0

Answer:

C. 40 ft²

Step-by-step explanation:

Triangle area formula:

A = bh/2, where b- base, h- height

We have:

b = 8 ft, h = 10 ft

The area is:

A = 8*10/2 = 40 ft²

Correct choice is C

You might be interested in

Please help me asap

Arada [10]

Answer:

See explanation

Step-by-step explanation:

Car A: Started at 0 and ended at 300, thus, car A travels 300 miles.

It travels 6 hours, so car A speed is $\frac{300}{6}=50$ mph.

Car B: Started at 100 and ended at 300, thus, car B travels 300-100=200 miles.

It travels 5 hours, so car B speed is $\frac{200}{5}=40$ mph.

Since 50>40, car A traveled faster than car B.

The graph for the car A is steeper than the graph for the car B.

6 0

4 years ago

Please answer and show steps please show steps please show steps 10 points

natali 33 [55]

Answer:

it is C 10

Step-by-step explanation:

If the positions are distinct, as in executive offices, then P(9, 5).

P(9, 5) = 9!/(9 - 5)! = 15120

If the positions are equivalent, such as seats in a legislative body, then C(9, 5).

C(9, 5) = 9!/[(9 - 5)!(5!)] = 126

Assuming the five positions are unique in their duties and responsibilities (i.e. order matters): position 1 has 9 candidates to choose from, position 2 has 8, position 3 has 7, and so on. Otherwise, if you're talking about 5 distinct but duplicate positions - meaning their responsibilities are the same but 5 people are required to carry them out - you need to divide the previous total number of possibilities by the number of ways those possibilities could have been reordered.

8 0

3 years ago

You bought a new car in 2015 for $32,000 that is depreciating in value by 15% each year. Write a function to represent this situ

Hitman42 [59]

Function: x = years

x = $32,000-15%x

Value of car in 2020:

$8000

4 0

3 years ago

Plz help asap !!! The high school jazz band is selling homemade leather bracelets at a local craft fair to raise money for a tri

coldgirl [10]

Answer:

b. y=2x-200

c. there will be no profit because 2 times 100 = 200, meaning they only earned back the money they already spent.

d. (domain or y-values) minimum: -200 maximum: 320

(range or x-values) maximum: 260

3 0

3 years ago

The graph of the function showing the path of a soccer ball thrown by a goalie in a video game, f(x) = –0.05x2 + 2.5x + 5.2, is

Tju [1.3M]

Answer:

The correct option is 4.

Step-by-step explanation:

The given function is

$f(x)=-0.05x^2+2.5x+5.2$

Where f(x) is height of the ball and x is the distance.

It is a polynomial function with degree 2. All polynomial functions are defined for all real numbers, therefore the mathematical domain of the function is all real numbers.

$-\infty$

Factorize the given function.

$f(x)=-0.05(x^2-50x-104)$

$f(x)=-0.05(x^2-52x+2x-104)$

$f(x)=-0.05(x(x-52)+2(x-52))$

$f(x) = -0.05 (x - 52) (x + 2)$

Put f(x)=0 to find the x intercepts.

$0 = -0.05 (x - 52) (x + 2)$

Equate each factor equal to 0.

$x=52,-2$

Therefore at x=52 and -2, the graph of f(x) intersects x-axis. Before x=-2 and after x=52 the values of f(x) is negative. Height cannot be negative, therefore reasonable domain is lie between -2 to 52.

Distance cannot be negative, therefore the reasonable domain must be positive.

$0\leq x\leq 52$

Therefore the reasonable domain is $0\leq x\leq 52$ and option 4 is correct.

6 0

3 years ago