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jenyasd209 [6]
3 years ago
5

Factor 4x^2-49y^2 Please help me get the answer

Mathematics
1 answer:
Kruka [31]3 years ago
4 0

Answer:

(2x+7y)(2x-7y)

Step-by-step explanation:

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17% of students in a class have brown hair. If 6 students are chosen at random, what is the probability that exactly 3 have brow
dezoksy [38]

Answer:

6.8%

Step-by-step explanation:

the question has no information about class size (no. of student in class)

assume no. of student is infinite

P(3brown out of 6) = 6C3 * P(brown)^3 * P(not brown)^3

= 20 * 0.004913 * 0.695789

= 0.06837

3 0
2 years ago
The graph shows Susan’s distance from her office, in yards, as she runs errands, over time, in minutes.
musickatia [10]
The question is asking how much time Susan spent moving toward her office.  On the graph, the y-axis represents the distance Susan is from her office, so the amount of time she is moving toward her office is the amount of time the graph is going down.

As you can see, the graph is going down from the 10 to 16 minute marks and the 22 to 26 minute marks.  In total, this is 20 minutes in which the graph is going down.

Therefore, Susan spends 20 minutes moving toward her office.
6 0
3 years ago
OA is congruent to ____.
viva [34]

Answer:

OF

Step-by-step explanation:

Since the arcs are congruent, the lines intercepting them are congruent, and you will get 2 congruent right triangles. So OA is congruent to OF by CPCTC.

7 0
3 years ago
Find an equation for the plane y=4x in cylindrical coordinates. (Type theta for θ in your answer.)
Paha777 [63]

Answer:

<h2><em>sinθ - 4cosθ = 0</em></h2>

Step-by-step explanation:

Given the equation of a plane in rectangular coordinates to be y = 4x.

The cylindrical coordinates of the axis is as given below;

x = rcosθ

y = rsinθ

z = z

Since there is no z coordinate in the equation of the plane given, we will only substitute x = rcosθ and y = rsinθ into the equation y = 4x and simply the result as shown;

y = 4x

rsinθ = 4( rcosθ)

rsinθ = 4rcosθ

sinθ = 4cosθ

sinθ - 4cosθ = 0

<em>Hence the equation for the plane in cylindrical coordinate is expressed as sinθ - 4cosθ = 0</em>

8 0
3 years ago
Please help me with math
fredd [130]

Answer:

1.) Arithmetic. common difference: 4

2.) Arithmetic. common difference: 4

3.) Not arithmetic.

8 0
2 years ago
Read 2 more answers
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