Someone please help!!! I need this answered. (Worth 10)

Mathematics

1 answer:

quester [9]3 years ago

8 0

$\frac{1}{2} \frac{1}{2}$ c

because sin is opposite over hypotenuse therefore it is 1 over 2

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Im Not completely sure what this is asking, but can someone please help answer this

solmaris [256]

Answer:

the answer is 60

Step-by-step explanation:

because 2(30)=60

7 0

3 years ago

Solve each equation. Show all your work. Round your answers to four decimal places. (a) 7^4x=10,(b)ln(2)+In(4x-1)=5

KengaRu [80]

A.) 7^4x = 10
log base 10 (7^4X) = log base 10 (10)
4x log base 10 (7) = 1
4x (0.8451) = 1
3.3804x = 1
x = 0.2958

b.) ln(2) + ln(4x-1) = 5
ln (2 * 4x-1) = 5
ln (8x-2) = 5
log base (3) (8x-2) = 5
e^5 = 8x-2
e^5+2 = 8x
x = 18.8016

4 0

3 years ago

consider the distance equation d=rt, where d is the distance (in feet), r is the rate (in feet per second), and t is the time (i

vesna_86 [32]

Answer:

yes, they are proportional

Step-by-step explanation:

A proportion is a relation that can be modeled by a straight line through the origin. The equation will have the form ...

y = kx

where x is the independent variable, y is the dependent variable, and k is a constant of proportionality.

If you start with the equation relating distance, rate, and time:

d = rt

and you fix the time at 50 seconds, then the equation becomes ...

d = 50t

This is the equation of a proportion with a constant of proportionality of 50. It tells you the distance run is proportional to the rate you run. When this equation is graphed, it is a straight line through the origin.

8 0

2 years ago

IM GIVING BRAINLIEST!!!PLEASE HELP!!:)I PROMISE!!!

Ugo [173]

Answer is A. To simplify you multiply numerator and denominator by the conjugate of the denominator.
I am 99% sure. Good luck.

7 0

3 years ago

The number of bacteria in a certain population increases according to an exponential growth model, with a growth rate of 3.5% pe

uysha [10]

Generic exponential growth model: y = Ao[1+r]^t

In this case: r = 3.5% = 0.035

y = 2Ao .....[the double of the initial value]

Then: 2Ao =Ao (1 + 0.035)^t

(1.035)^t =2

Take logarithm to both sides

t ln(1.035) = ln(2)

t = ln(2) / ln(1.035) = 0.693 / 0.0344 = 20.15

Answer: 20.15 hours.

3 0

4 years ago