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3 years ago

I'm not the brightest, mind helping me out?

Mathematics

1 answer:

BARSIC [14]3 years ago

6 0

Answer:

Step-by-step explanation:

Opposite means that they are the same value away from 0 just on the opposite side.

4 is opposite to -4

and 7 is opposite to -7

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The top of the Boulder Dam has an angle of elevation of 1.2 radians from a point on the Colorado River. Measuring the angle of e

Nana76 [90]

Answer:

382.925 feets

Step-by-step explanation:

The solution diagram is attached below :

Converting radian measurement to degree :

radian angle * 180/π = degree angle

1.2 * 180/π = 68.755°

0.9 * 180/π = 51.566°

Height of dam is h:

Using trigonometry :

Tan θ = opposite / Adjacent

Tan 68.755° = h / x

h = x Tan 68.755° - - - (1)

Tan 51.566° = h / (155+x)

h = (155+x) tan 51.566° - - - (2)

Equate (1) and (2)

x Tan 68.755 = (155+x) Tan 51.566

x Tan 68.755 = 155tan 51.566 + x tan 51.566

x Tan 68.755 = 195.32311 + x Tan 51.566

x Tan 68.755 - x Tan 51.566 = 195.32311

x(tan 68.755 - tan 51.566) = 195.32311

x * 1.3120110 = 195.32311

1.3120110x = 195.32311

x = 195.32311 / 1.3120110

x = 148.87307

Using :

h = x Tan 68.755

h = 148.87307 * tan(68.755)

h = 382.92539

h = 382.925 feets

5 0

2 years ago

Please HELP!!! I'll make you Brainliest!!!!

erica [24]

Answer: 1. d. $7x\geq 350; x\geq 50$

2. a. (5, 28)

3. a: C(n) = 0.90 n - 0.40

Step-by-step explanation:

1. Here x represents the saving of one day.

Thus, the total saving for 7 day = 7 x

And, my goal is to save at least $350.00 ( According to the question)

⇒ $7x\geq 350$

⇒ $x\geq 50$ ( by dividing both sides by 7 )

Therefore, Option d is correct.

2. since, if a point satisfies an equation then we can say that it is the solution of the equation.

(5,28) satisfies y= 5x + 3

Because at x = 5, 5×5 + 3 = 25 + 3 = 28

except this point other points (28, 5), (4, 20) and (3, 19) are not satisfying given equation of line.

Therefore, only (5,28) is the solution of line.

⇒ Option a is correct.

3. Here n represents the number of tunas.

And, according to question the cost of one tuna = $0.90

⇒ Cost of n tunas = $ 0.90n

But again according to the question,

I have a coupon for $0.40 off your total purchase.

Thus, $ 0.40 will be less from my total purchasing cost.

⇒ The cost of n tunas = $ (0.90 n - 0.4)

Option a is correct.

7 0

2 years ago

Nutritionists recommend that people eat

mixer [17]

The amount of grams of fiber that Jodi should eat to meet the recommended daily amount of fiber is 12 grams.

<h3>How many more grams of fiber should Jodi eat?</h3>

The first step is to convert milligrams to grams.

1 milligram = 0.001 grams

25,000 x 0.001 = 25

Now subtract the recommended amount from the quantity eaten:

25 - (8 + 4 + 1 ) = 12 grams

Please find attached the complete question. To learn how to convert units, please check: brainly.com/question/25993533

#SPJ1

5 0

1 year ago

Isolate c in the equation a=b(1/c-1/d)

Irina-Kira [14]

A=b/c -b/d
a+b/d=b/c
(da+b)/d=b/c
db=(da+b)c
c=db/da+b

5 0

2 years ago

Find the area of a tank which measures 25cm and 10cm

laiz [17]

Answer:

Area = 250

Step-by-step explanation:

25 x 10

Length * Width

5 0

2 years ago

I'm not the brightest, mind helping me out?​

I'm not the brightest, mind helping me out?