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Oxana [17]
3 years ago
9

Help!!! Slove for x. A.11 B.9 C.13 D.14

Mathematics
1 answer:
olga nikolaevna [1]3 years ago
7 0

Answer:

Step-by-step explanation:

The secants form a proportion where the full length of the secant is the denominator of a fraction where the numerator is the external part of the secant.

7/(x + 7) = 6/(15 + 6)         Cross Multiply after combining

7 / (x + 7) = 6/(21)                

6 * (x + 7) = 7 * 21             Remove the brackets

6x + 42 = 147                   Subtract 42

6x = 147 - 42

6x = 105                           Divide by 6

x = 17.5

I think I've done this correctly. If you find an error, please let me know and I'll open it for editing.

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What is 201 divided by 7?
anzhelika [568]
201÷7= 28.71
The answer is 28.71
5 0
3 years ago
In pensacola in june, high tide was at noon. the water level at high tide was 12 feet and 2 feet at low tide. assuming the next
castortr0y [4]

An equation for water level in june for pensacola as a function of time (t) is f(t) = 5 cos pi/6 t + 7.

Which equation of cos show period amplitude ?

The equation given below show aplitude and period

y = A cos bx + c

where A = amplitude,

b = 2 pi/Period,

Period = 12 hrs,

c = midline,

x = t and y = f(t)

We have to find the amplitude

<h3>What is the formula for the amplitude?</h3>

A = 1/2 (Xmax - Xmin)

12 - 2 / 2 = 10/2 = 5

b = 2 pi / 12 = pi/6

c = 1/2 (Xmax + Xmin)

12+2/2 = 7

Therefore, the an equation for water level in june for pensacola as a function of time (t)

f(t) = 5 cos pi/6 t + 7

To learn more about the function of time visit:

brainly.com/question/24872445

3 0
3 years ago
Which polynomial expression represents a sum of cubes?
s344n2d4d5 [400]
I think it’s C
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4 0
4 years ago
What is the y-intercept in the equation y=8x+6
lisabon 2012 [21]

Answer:

(0,6) or 6

Step-by-step explanation:

To find the y-intercept look at the last variable you have, which in this case is 6. Glad to help :)

7 0
3 years ago
Suppose f(x) =6x second power-4, what is f(-1)?
meriva

Answer:

f(-1)=6×(-1)^-4=6/(-1)^4=6/1=6

8 0
3 years ago
Read 2 more answers
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