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3 years ago

In the figure below, C is between A and D, and B is the midpoint of AC. If AD=20 and BC=6, find CD.

Mathematics

2 answers:

Leokris [45]3 years ago

8 0

Answer:

Step-by-step explanation:

AC and BC are the same, so both equal 6

6+6 is 12

Subtract 12 from 20

20-12=8

CD is 8

Vesna [10]3 years ago

8 0

8 i think, sorry if its wrong:) I can give an explanation if needed!

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What does 8/7 to the power of 4 equel

cupoosta [38]

Answer:

The equivalent expression $\frac{8^4}{7^4} = \frac{4096}{2401}\approx 1.71$

Step-by-step explanation:

Given:

$(\frac{8}{7})^4$

We need to find the equivalent for given expression.

Solution:

$(\frac{8}{7})^4$

Now by using Law of indices which states;

$(\frac{a}{b})^n= \frac{a^n}{b^n}$

So applying the same in given expression we get;

$\frac{8^4}{7^4}$

Now we can say that;

$8^4 = 8 \times 8 \times 8 \times 8$

Also

$7^4 = 7 \times 7 \times 7 \times 7$

$\frac{8^4}{7^4} = \frac{8 \times 8 \times 8 \times 8}{7 \times 7 \times 7 \times 7}$

Now We know that;

$8 \times 8 \times 8 \times 8 = 4096$

$7 \times 7 \times 7 \times 7 = 2401$

On substituting we get;

$\frac{8^4}{7^4} = \frac{4096}{2401}\approx 1.71$

Hence The equivalent expression $\frac{8^4}{7^4} = \frac{4096}{2401}\approx 1.71$

5 0

3 years ago

Geometry please help!:(

Burka [1]

It would be triangle because you're cutting it

5 0

3 years ago

3(1)+2(_)=6 plz help on filling in the blank

TEA [102]

Answer:

x = 3/2

Step-by-step explanation:

Let's solve your equation step-by-step.

(3)(1)+2x=6

Step 1: Simplify both sides of the equation.

(3)(1)+2x=6

3+2x=6

2x+3=6

Step 2: Subtract 3 from both sides.

2x+3−3=6−3

2x=3

Step 3: Divide both sides by 2.

2x/2 3/2

x = 3/2

Hope this helps :)

7 0

3 years ago

According to the 1991 census, there are about 43406932 people in our country who speak Urdu. Which of the following is the close

amm1812

According to the 1991 census, there are about 43406932 people in our country who speak Urdu. Which of the following is the closest approximation of this number?

A 4 lakhs

B 43 lakhs

C 4 crores

D 43 crores

→ C 4 crores

Explaination :

2 - Unit place

3-tens place

9- hundred place

6 - thousand place

0- ten thousand place

4 - lakh place

3 - ten lakh place

4 - crore place

hence , closest approximation of this number is 4 crores.

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What is the discounted price for a watch that is regularly $58.00 and 30% off?

lukranit [14]

Answer:

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Step-by-step explanation:

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