3 years ago

I can't figure this problem out Please, I need some help.

Mathematics

1 answer:

8090 [49]3 years ago

8 0

Answer:

Step-by-step explanation:

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An archaeological site is to be made accessible for viewing by the public. To do this, archaeologists built two straight paths f

Jobisdone [24]

Answer:

387 km

Step-by-step explanation:

The length of AC, b can be obtained using the cosine rule ; using the cosine relation:

b² = a² + c² - 2ac CosB

b² = 250² + 185² - 2(250*185) Cos125

b² = 62500 + 34225 - 92500 * −0.573576

b² = 96725 + 53055.820

b² = 149780.82

b = sqrt(149780.82)

b = 387.01527

b = 387 km (nearest whole number)

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3 years ago

Use the discriminat to describe the roots of each equation. Then select the best description 16x^2+8x+1=0

astra-53 [7]

Answer:

Step-by-step explanation:

Discriminant= 8^2-4(16)(1)

7 0

3 years ago

Which shows equivalent expressions a^2+3b-2a^2=3^a+3b-4a^2 a^2+3b-2a^2=3^a+4b-4a^2 -a^2+3b-2a^2=3a^2+3b -a^2+3b+2a^2=3a^+4b-2a^2

scoray [572]

I don’t think this is formatted correctly, but I think it may be the 2nd one.

6 0

3 years ago

Find the value of x from the given figure:

zubka84 [21]

Answer:

60°

Step-by-step explanation:

2x and x are linear pair,

=> 2x + x = 180

=> 3x = 180

=> x = 180/3

=> x = 60°

=>2x =120°

7 0

3 years ago

Read 2 more answers

In Exercise sketch the graph of the function.<br> f(x) = ex + 3

Tju [1.3M]

Answer:

$f(x) = e^x + 3$

Step-by-step explanation:

We are given the following function in the question:

$f(x) = e^x + 3$

We have to graph this function.

Properties of given function are:

e is a constant and have a value of e = 2.718281828....
The function does not pass through origin
At x = 0, f(x) = 4
The domain for the given function is all real numbers.
The range of the given function is $(3, \infty)$

The attached image shows the graph for given function.

5 0

3 years ago

I can't figure this problem out Please, I need some help.​

I can't figure this problem out Please, I need some help.