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LenKa [72]
4 years ago
7

What is the measure of the vertex angle of an isosceles triangle if one measure 65 degrees and its congruent sides are 15cm each

?
A:50
B:60
C:30
D:40
Mathematics
2 answers:
pentagon [3]4 years ago
6 0
<span>Hello, to answer your question in depth and properly

The answer is A
since base angles of an isosceles triangle are congruent the other base angle is also 65. since the three angles together sum to 180 thst leaves 180-65-65=180-130 = 50 degrees for the vertex angle 


          Signed by, Virtuso Sargedog
</span>
Paha777 [63]4 years ago
4 0
I believe the answer is A 
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Time is now 11:45 AM what is the smaller angle between hour and minute hand on o'clock
Crazy boy [7]
Given that the time now is 11:45 a.m, the smallest and between the hour and minute hand on the o'clock will be given by:
 60 min=360 degrees
the time between the min hand and the hour hand is 10 min;
thus the angle will be:
10/60*360
=60 degrees
3 0
4 years ago
‼️Please help me ASAP ‼️
Len [333]
The answer is B sorry
3 0
3 years ago
An urn contains 8 pink and 5 red balls. Six balls arerandomly drawn from the urn in succession, with replacement.That is, after
slega [8]

0.088

Step-by-step explanation:

The total number of balls in the urn is;

8 +  5 = 12

Because the pink balls are 8, then the probability of picking a pink ball from the urn is;

8/12

To get the probability that all 6 balls drawn from the urn are pink, we will use the AND probability rule of the mutually exclusive events which means we’ll multiply the probabilities of each of the six pink balls;

8/12 * 8/12 * 8/12 * 8/12 * 8/12 * 8/12

= 0.088

Learn More:

For more on probabilities check out;

brainly.com/question/11248705

brainly.com/question/1177537

#LearnWithBrainly

6 0
4 years ago
1. f(x) = x² - 4 ; if x is even = 3x – 2; if x is odd solve for f(4) and f(5)
vovikov84 [41]
<h3>Answers:</h3><h3>f(4) = 12</h3><h3>f(5) = 13</h3>

=======================================================

Explanation:

This is a piecewise function as it is composed of two pieces.

The equation for f(x) depends on what x is. Specifically whether it is even or odd.

If x is even, then f(x) = x^2-4. If x is odd, then f(x) = 3x-2

------------

f(4) means f(x) when x = 4. We have an even number input for x, so we'll go with f(x) = x^2-4

f(x) = x^2 - 4

f(4) = 4^2 - 4

f(4) = 16 - 4

f(4) = 12

------------

When x = 5, x is now odd, so use f(x) = 3x-2

f(x) = 3x-2

f(5) = 3(5) - 2

f(5) = 15 - 2

f(5) = 13

5 0
3 years ago
What is the surface area of a sphere with a diameter of 12 centimeters ?
nasty-shy [4]

Answer:

A=452.39\ cm^2

Step-by-step explanation:

The formula to calculate the surface area of a sphere is the following:

A=4\pi r^2

Where A is the area of the sphere and r is the radius of the sphere.

In this case we know that the diameter d of the sphere is:

d = 12\ cm

The diameter is:

d = 2r.

Thus

r = \frac{d}{2}\\\\r = \frac{12}{2}\\\\r=6\ cm

Then the surface area of the sphere is:

A=4\pi (6)^2\\\\A = 144\pi\ cm^2\\\\A=452.39\ cm^2

7 0
3 years ago
Read 2 more answers
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