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VashaNatasha [74]
4 years ago
14

Can anyone help me figure this out?

Mathematics
1 answer:
Oksanka [162]4 years ago
3 0
I think is A im not sure
You might be interested in
Circle A has radius 4 feet. Circle B has radius 9 feet. What is the ratio of the area of circle A to the area of circle B?
yaroslaw [1]

Answer:

\large\boxed{\dfrac{16}{81}}

Step-by-step explanation:

The formula of an area of a circle:

A=\pi r^2

r - radius

Circle A:

radius = 4 ft. Substitute:

A_A=\pi(4^2)=16\pi\ ft^2

Circle B:

radius = 9 ft. Substitute:

A_B=\pi(9^2)=81\pi\ ft^2

The ratio:

\dfrac{A_A}{A_B}=\dfrac{16}{81}

7 0
3 years ago
1. Write an equation in slope-intercept form of the line with the given slope and point: slope = 3 and (1, -2).
Lunna [17]
1.  The linear equation:
y = m x + b
m = 3
- 2 = 3 · 1 + b
- 2 = 3 + b
b = - 5
Answer: A ) y = 3 x - 5
2.  We will solve the system of equations:
12 = - 4 m + b  /  · ( - 1 )
23 =  7 m  +  b
----------------------
- 12 = 4 m - b
+
 23 =  7 m + b
--------------------
11 = 11 m,         m = 1,     b = 16
Answer:  A ) y = x + 16        
3 0
3 years ago
Point P is located at (-2, 7), and point R is located at (1, 0). find the y value for the point Q that is located 2/3 the distan
Dominik [7]

Just did this one.

Answer: 7/3 or about 2.3, choice (d).



Step-by-step explanation:


R-P= (3,-7). the displacement vector.


P+x(R-P) moves to x times distance between


P+(R-P) = R moves to 100% of the distance.


Q = P+2/3(R-P)


= (-2,7)+2/3(3,-7)


= (-2,7)+(2,-14/3)


= (0,7-14/3)


= (0,7/3)


= (0,2.3333...)


Read more on Brainly.com - brainly.com/question/11869584#readmore

7 0
3 years ago
Write the equation of a line perpendicular to y=1/2x + 8 that passes through ( 4, 9 ). ​
iogann1982 [59]

Answer:y = - 2x + 17

Step-by-step explanation:

The equation of a line, represented in the slope-intercept form, is

y = mx + c

Where

Slope = m

c = intercept

Looking at the equation given,

y=1/2x + 8

Slope,m = 1/2

If a line is perpendicular to a another line, then the slope of one line is equal to the negative reciprocal of the other line. It means that the slope of the perpendicular line that passes through that passes through ( 4, 9 ) will be -2

To determine c,

We will substitute m = -2, y = 9 and x = 4 into the slope intercept equation,

y = mx + c. It becomes

9 = -2 × 4 + c

9 = -8 + c

c = 9 + 8 = 17

The equation becomes

y = - 2x + 17

4 0
3 years ago
A ball is thrown from an initial height of 2 feet with an initial upward velocity of 29 ft/s. The ball's height h (in feet) afte
Len [333]
H=14 for this particular instance so:
14=2+29t-16t²
14-2=2-2+29t-16t²
12=29t-16t²
0=-16t²+29t-12
that's as factored as possible so you should use the quadratic formula for the rest and check for extraneous answers
4 0
4 years ago
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