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Nady [450]
2 years ago
13

I WILL MARK BRAINLIEST!!!!

Mathematics
1 answer:
marta [7]2 years ago
6 0

Answer:

435.8 feet

Step-by-step explanation:

law of sines:

*sin 90°/1 = sin 35°/250

cross-multiply to get:

x·sin35° = 250

x = 250/sin35°

x = 435.8

*we can assume the ocean surface and the reef 250 feet below forms a 90° angle

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Me Value of Money: Practice
Tatiana [17]

Answer:

$3952.13

Step-by-step explanation:

Annuity amount = future value / annuity factor

Annuity factor = {[(1+r)^n] - 1} / r

FV = Future value = $75,000  

R = interest rate = 8%

N = number of years = 12

Annuity factor = [(1/08)^12 - 1 ] / 0.08 = 1.8977126

Annuity amount = $75,000 / 1.8977126 = $3952.13

3 0
3 years ago
What is the measure of EFG in circle Obelow?
Mashutka [201]

The two opposite arcs add to the entire circle, 360 degrees, so we must have EFG=360-60=300 degrees.

Answer: C

8 0
3 years ago
Help with this question ??
salantis [7]

Answer:

15 units per unit

Step-by-step explanation:

From the graph we can easily tell that y increases from 0 to 15 as x increases from 2 to 3.  

Thus, the average rate of change of f(x) on the interval [2, 3] is:

    1         15 - 0       15 units

--------- * ----------- = -------------- = 15 units (rise) per unit (run).

 3 - 2          1                 1

6 0
3 years ago
Can someone help me with this? its solving systems by substitution
yKpoI14uk [10]
Answer: x = 1 and y = 2

Given:
y = -3x + 5
5x - 4y = -3

Since we are given y, let’s sub it in the second equation.

5x - 4(-3x + 5) = -3
5x + 12x - 20 = -3
17x = 17
x = 1

After finding x, we can now find y.

5(1) - 4y = -3
-4y = -8
y = 2

Checking:

y = -3x + 5
2 = -3(1) + 5
2 = 2


5x - 4y = -3
5(1) - 4(2) = -3
-3 = -3
8 0
2 years ago
State the property.<br>4(2+3)=(2+3)4​
Komok [63]

Hmm, it looks like it could be commutative property of multiplication.

The order of the expression is different.

4(2+3)=

4(5)=20

(2+3)4=

(5)4= 20

8 0
3 years ago
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