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Mrrafil [7]
3 years ago
15

What's the answerwhat's the answer ​

Mathematics
2 answers:
DochEvi [55]3 years ago
8 0

Answer: ITS NUMBER ONE!

Jet001 [13]3 years ago
6 0

Answer:

a

Step-by-step explanation:

a

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Let ABC be an isosceles triangle with AB = AC and ∠BAC=30°. Side AB and the median AD contain points Q and P respectively (point
Svet_ta [14]

Answer:

  15°

Step-by-step explanation:

Since P is on the median of ΔABC, it is equidistant from points B and C as well as from C and Q. Thus, points B, C, and Q all lie on a circle centered at P. (See the attached diagram.)

The base angles (B and C) of triangle ABC are (180° -30°)/2 = 75°. This means arc QC of the circle centered at P has measure 150°. The diameter of circle P that includes point Q is defined to intersect circle P at R.

Central angle RPC is the difference between arcs QR and QC, so is 180° -150° = 30°. Inscribed angle RQC has half that measure, so is 15°.  Angle PQC has the same measure as angle RQC, so is 15°.

Angle PQC is 15°.

5 0
3 years ago
Consider the expression 16a + 4c.
kari74 [83]
The answer would -38
4 0
3 years ago
Suppose that 200 students are randomly selected from a local college campus to investigate the use of cell phones in classrooms.
serious [3.7K]

Answer:

It would change to 0.04802

Step-by-step explanation:

from this question we have that n became 400

40% of 400

= 160

p* = 160/400

= 0.4

1 - p* =

= 1 - 0.4

= 0.6

at confidence level,

1 - 0.95

= 0.05

alpha/2 = 0.025

z= 1.96

<u>margin of error. E</u>

= 1.96 x √[(0.4 x 0.6)/400]

= 1.96 x 0.0245

= 0.04802

M.E = 0.04802

6 0
3 years ago
Solve7+x/4=5 For x please show steps
seraphim [82]

7 + x/4 = 5 (common denominator is 4)

4(7+x/4) = 4 x 5  (distribute the 4 though parenthesis)

4 *7 +4x/4 = 4 x 5

4 * 7 + x = 4 x 5

28 + x = 4 x 5

28 + x = 20 (subtract the 28)

x = 20 - 28

x = -8


8 0
3 years ago
Read 2 more answers
The fastest and correct answer gets brainiest! Pls don't send file links that open different tabs
MAXImum [283]

Answer:

16/9

Step-by-step explanation:

(4/3) ^2

(4/3) * (4/3)

First the numerators

4*4 = 16

Then the denominators

3*3 = 9

Numerator over denominator

16/9

7 0
3 years ago
Read 2 more answers
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