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2 years ago

In an isosceles triangle the length of the base is 10 cm

Mathematics

1 answer:

lawyer [7]2 years ago

5 0

The computation shows the radius of the circle that is inscribed in the isosceles triangle will be 3.33cm.

<h3>How to calculate the radius?</h3>

From the information given, the isosceles triangle the length of a base is 10 cm and the length of a leg is 13 cm.

Let A = area of the triangle

Let S = semi perimeter of the triangle.

The radius will be: = A/S

where,

$S = \dfrac{(a + b + c)}{2} = \dfrac{(13 + 13 + 10)}{2} = 18$

The radius will be:

$=\dfrac{(\sqrt{18} - \sqrt{13})(\sqrt{18} - \sqrt{13})(\sqrt{18} - \sqrt{10})} { 18}$

= 3.33cm

In conclusion, the radius is 3.33cm.

Learn more about triangles on:

brainly.com/question/17335144

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3/5 to second power times 25

Anestetic [448]

The answer is 9 because 3/5 to second power is 9/25 then you multiply it by 25 and you get 9

7 0

3 years ago

How many natural numbers N have the property among 1,2,..........,N exactly 30% are divisible by 3?

k0ka [10]

Answer:

The answer is B. 2.

Step-by-step explanation:

We know that for N = 1 and N = 2, none of them are divisible by 3.

For N = 3, 33.33% are divisible by 3. For N = 4, 25% (which is already less than 30%), so N = 5 would also be less.

At N = 6, we're back up to 33.33%. N = 7 is already less than 30%.

At N = 9, you guessed it, 33.33%. N = 10 is 30% (3, 6, and 9). So we have one case.

Moving along, at N = 18, 33.33%. N = 20 is again 30% (3, 6, 9, 12, 15, and 18). Two cases now.

Finally, at N = 21, again 33.33%. N = 22 and N = 23 are both greater than 30%. As we continue this, for any N after 20, we will always be greater than 30%.

4 0

3 years ago

How can I find out how to divide 1/2

borishaifa [10]

Divide one half by what
IF your talking about this
100 divided by 1/2 then it would be 50 and all i did was put the multiply 100 by .5

6 0

3 years ago

Read 2 more answers

How would you solve this problem? (Worth 10 points, pls help!)

mrs_skeptik [129]

Answer:

(22,0)

Step-by-step explanation:

1. Select any two points given and find their slope (rise/run)

(-38, 40) and (-23, 30)

slope = $\frac{40-30}{-38-(-23)}$ = - 2/3

2. Use the slope and one of the points to create an equation of the line in the format y = mx + b, where m = slope and b = y-intercept.

y = mx + b ⇒ 40 = -2/3 (-38) + b

3. Solve for b

40 = -2/3 (-38) + b

40 = 76/3 + b

40 - 76/3 = b

b = 44/3

4. To find the x-intercept, set y = 0, and solve.

y = -2/3 x + 44/3

0 = -2/3 x + 44/3

2/3 x = 44/3

x = 22

Hope this helped!

5 0

3 years ago

Graph the equation F(x)=(1/3)^x

scoray [572]

The value of a=9,b=3 and c=1

Step-by-step explanation:

The graph shown is for function f(x)

The given function is f(x)= $(\frac{1}{3}) ^{x}$

Table says,

X Y

-2 a

1 b

0 c

1 (1/3)

2 (1/9)

To find value of a:

From table, for output value a, input value, x=(-2)

we can write f(-2)=a

Therefore,

f(x)= $(\frac{1}{3}) ^{x}$

f(-2)= $(\frac{1}{3}) ^{(-2)}$

a= $(\frac{1}{3^{(-2)}})$

a= $3^{(2)}$

a=9

To find value of b:

From table, for output value a, input value, x=(-1)

we can write f(-1)=b

Therefore,

f(x)= $(\frac{1}{3}) ^{x}$

f(-1)= $(\frac{1}{3}) ^{(-1)}$

b= $(\frac{1}{3^{(-1)}})$

b= $3^{(1)}$

b=3

To find value of c:

From table, for output value a, input value, x=(0)

we can write f(0)=c

Therefore,

f(x)= $(\frac{1}{3}) ^{x}$

f(0)= $(\frac{1}{3}) ^{(0)}$

c= $(\frac{1}{3^{(0)}})$

c=1

5 0

3 years ago