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Naily [24]
3 years ago
15

GEOMETRY! Need help with both please.

Mathematics
1 answer:
Leno4ka [110]3 years ago
8 0
We know <em>a </em>is perpendicular <em>l</em> and that perpendicular means 90 degrees. Using corresponding angles, we know that <em>angle 3</em> also is 90 degrees. Using corresponding angles again, was know <em>angle b</em> is 90 degrees. Since 90 degrees is the same thing as perpendicular this would mean that <em>line b</em> is perpendicular to <em>line</em> <em>m</em>.<em />
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You flip a coin, and then roll a number cube twice. Find the probability of the event.
uysha [10]

No. It doesn’t, the square root is different than the approximate length.

3 0
3 years ago
Karen batting average was 0.444 She was at bat 45 times.how many hits did she get?
Simora [160]
<span>Karen got an average of 0.444 hits out of 45 bats.
We need to find the number of hits did Karen got.
=> 45 bats all in all
=> 0.444 average hits
x = how many hit did she get
Now, let’s multiply the total bats to Karen’s average hit:
=> 45 x 0.444 …. (repeating decimals)
=>  20
Therefore, Karen hit 20 times out of 45 bats
Let’s check our answer:
=> 20 / 45
=> 0.44444…. (repeating decimals)

</span>



4 0
3 years ago
Read 2 more answers
In one study, it was found that the correlation coefficient between two variables is -0.93.
Marysya12 [62]

the answer is d (i think) because anything aboveboard .90, whether it is positive or negative

4 0
3 years ago
Read 2 more answers
The local radio tower is located 20 miles east and 12 miles north of Pamela's cabin. The radio tower has a 25 mile broadcast rad
pychu [463]

Answer:

x^2 +y^2 -40x -24y  -81 =0

Step-by-step explanation:

We can write the equation of a circle in the form

(x-h)^2 + (y-k)^2 = r^2

Where (h,k) is the center and r is the radius

Assuming that Pamela's cabin is the center

( x-20)^2 + (y- 12)^2 = 25^2

We want to get to general form

x^2 + y^2 + Dx + Ey + F = 0,

Distributing

x^2 -40x +400 + y^2 -24y +144 = 625

x^2 +y^2 -40x -24y +544 -625 =0

x^2 +y^2 -40x -24y  -81 =0

3 0
3 years ago
Mountain officials want to know the length of a new ski lift from A to C , as shown in the figure below. They measure angle DAC
Ede4ka [16]
We assume that the hill is represented by points ACD  and the ski lift is represented by points BCD. From the description above, points CDB would have an angle of 90 degrees. Then, we would have:

sin (32) = CD / 960
CD = 508.72

tan 32 = 508.72 / AD
AD = 814.13

Therefore, the distance would be 814.13 - 508.72 = 305.4 ft.

4 0
3 years ago
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