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Pie
3 years ago
8

What is the value of x? A. 6 B. 5 c. 4 D.3

Mathematics
1 answer:
Mumz [18]3 years ago
8 0

Answer:

D

Step-by-step explanation:

CD is an angle bisector and divides the opposite side into segments which are proportional to the other 2 sides, that is

\frac{BC}{AC} = \frac{BD}{AD} , substitute values

\frac{4}{3} = \frac{x}{2.25} ( cross- multiply )

3x = 9 ( divide both sides by 3 )

x = 3 → D

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Q2) The isoscsles right triangle has 2 of it’s sides 10,10 it’s area is
nydimaria [60]

Answer:

Step-by-step explanation:

side a = 10

Area of isosceles triangle = \frac{\sqrt{3}a^{2}}{4}\\\\

           = \frac{\sqrt{3}*10*10}{4}\\\\=\sqrt{3}*5*5\\\\=25\sqrt{3}\\\\=25*1.732

             = 43.3 square units

3 0
3 years ago
Tbh this question confusing the **** outta me​
trapecia [35]

Answer:

8^6

Step-by-step explanation:

Powers are defined as the number of times you multiply a number by itself. For example, 2 to the 3rd power is 2 multiplied by itself 3 times. 2 * 2 * 2 = 8. You also know that if you multiply two powers of the same base, you add the exponent, and if you raise a power to a different power, you multiply the exponents.

e.g:

2^2\cdot2^2=2^{2+2}=2^4\\(2^2)^3=2^{2\cdot3}=2^6

Now, we are asking to use grouping to write 2 to the power 18 as a power of 8. We know 2 to the power 8 is 2 to the power 3, so we have the following equation:

2^{18}=(2^3)^x

We know this is now 2 to the power 3x = 2 the power 18, and therefore x = 6, because 3 times 6 is equal to 18. Now, we can just simplify 2 to the third as 8 and we now have:

8^6

4 0
2 years ago
Please help me witht this
iogann1982 [59]

Answer:

B,D

Step-by-step explanation:

the independent variable is what is being changed or manipulated and he is changing how many plays he gets.  the amount of yards he gets is a result of the amount of plays so thats the dependent variable.  

7 0
2 years ago
Read 2 more answers
The variable, y, varies directly with x. if y = 20 when x = 25, what is y when x = 43? Also please explain so I can understand t
Gwar [14]

Answer:

25

Step-by-step explanation:

4 0
2 years ago
I have a flower vase with a 6 " diameter and is 12 " tall I want to fill it 2/3 of the way full how many cubic inches will I fil
RSB [31]

Answer:

72\pi\ in^{3}

Step-by-step explanation:

step 1

<em>Calculate the volume of the cylinder (flower vase)</em>

The volume is equal to

V=\pi r^{2}h

we have

r=6/2=3\ in -----> the radius is half the diameter

h=12\ in

substitute the values

V=\pi (3)^{2}(12)=108\pi\ in^{3} ------> exact value

step 2

Calculate  2/3 of the volume

V=(2/3)108\pi=72\pi\ in^{3}

8 0
4 years ago
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