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FromTheMoon [43]
3 years ago
14

7 is the mean proportional between 2 and a number. Find the number, show all work.

Mathematics
2 answers:
erastova [34]3 years ago
7 0

Answer:

24½

Step-by-step explanation:

7 = sqrt(x × 2)

7² = 2x

x = 49/2

Dmitry_Shevchenko [17]3 years ago
4 0

Answer:

12

Step-by-step explanation:

Follow me please for answering the question

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The circumference is 1 mile. What is the diameter?
iren2701 [21]

Answer:

Step-by-step explanation:

circumference  = 2* pi * radius = 1

-> radius = 0.1592 mile

-

> diameter = 2* radius = 0.31847 mile

8 0
3 years ago
An Account grows at an annual interest rate, it grows by a factor of x=1 + r each year. The function A(x)=800x^4 + 350x^3 + 500x
Marina86 [1]

Answer:

Applying the formula, it is found that the total amount in the account will be of $2,431.3. I THINK

Step-by-step explanation:

IM NOT SURE!

7 0
2 years ago
Read 2 more answers
PLEASE HELP
ycow [4]

Answer:

11 bushels of apples were sold

Step-by-step explanation:

Let

x---->  bushels of peaches

y---->  bushels of apples

we know that

7x+6y=346 -----> equation A

x=y+29 -----> equation B

substitute equation B in equation A and solve for y

7(y+29)+6y=346

7y+203+6y=346

13y=346-203

13y=143

y=143/13=11

5 0
3 years ago
Write an expression using all six trigonometric functions such that the value of the expression is 3.
iren2701 [21]
The trig functions that you need to deal with are
Sine
Cosine
Tangent
Cotangent
Cosecant
Secant

You need to write a single expression using all six trig functions such that the value of the expression equals 3.

To make this as simple as possible, the first thing I would do is look up the values of these functions and identify which ones are equal to either 1/2 or 1.0 or 2.0

sin(30º) = 1/2
sin(90º) = 1
cos(0º) = 1
cos(60º) = 1/2
tan(45º) = 1
csc(30º) = 2
csc(90º) = 1
sec(0º) = 1
sec(60º) = 2
cot(45º) = 1

If we only had to use three trig functions (sin, cos, tan), one possibility is
tan(45º) + cos(0º)/sin(30º) = 1 + 1/(1/2) = 1 + 2 = 3
noticed how I chose one each of the required functions and the operations so that the result = 3.

Now it is up to you to figure out how to combine all six trig functions so that they equal zero. There are many possibilities for you to choose from..
6 0
2 years ago
I need help right now please!<br> I have 2 questions!
yKpoI14uk [10]
1 is 28
2 is 13, 84, 85

Figure both by the Pythagorean Theorem<span />
5 0
3 years ago
Read 2 more answers
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