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oksian1 [2.3K]
3 years ago
13

Anyone know the answer?

Mathematics
2 answers:
Daniel [21]3 years ago
6 0

Answer:

20

Step-by-step explanation:

Find AC

\sqrt{65^{2} -16^{2} } = 63

Substract

63 - AD = 12

Find "?"

\sqrt{12^{2} +16^{2} } = 20

k0ka [10]3 years ago
5 0

Answer:

Determine AC with the pythagorean theorem, then you can find CD by subtracting AD.

with DC and BC, you can find BD. again, with the pythagorean theorem

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koban [17]

Answer:

1/2

Step-by-step explanation:

there is six marbles 3 of them are grey 3 out of 6 so hallf

5 0
3 years ago
Math help pls
VARVARA [1.3K]

Answer:THIS TOOK ME FOREVER BUT WAS WORTH IT

1)1 1/7 times 1 3/4=2

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3)4 3/8 times 1 2/3= 7 7/24

4)5 1/2 times 3 1/3=18 1/3

5)7 1/5 times 2 1/6=10 3/14

6)2/3 times 4/15=8/4

7)2 2/5 times 1 1.4=27 9/25

8)4 2/5 times 10=44

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Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Given the figure below, calculate the area
Aleksandr [31]

Answer:

<em>1+√3</em>

Step-by-step explanation:

Area of the triangle = 1/2 * base * height

Area of the triangle = 1/2 * AC * BD

We need to get AC

AC = AD+DC

Get base AD using SOH CAH TOA

tan 45 = 4/AD

AD = 4/tan45

AD = 4/1

AD = 4

Get DC

tan 30 = 4/DC

DC = 4/tan 30

DC = 4/(1/√3)

DC = 4√3

AC = 4 + 4√3

AC = 4(1+√3)

Get the Area of the triangle

<em>Area = 1/2 * 4 *  4(1+√3)</em>

<em>Area of the triangle = 1+√3</em>

6 0
3 years ago
Pls help it is khan academy :)
Whitepunk [10]

Answer:

4x-12

Step-by-step explanation:

8 0
3 years ago
Can someone please help meee
pshichka [43]

Answer:

160

Step-by-step explanation:

Angle ABE is a 180 as ABE forms a line

so angle ABC + ANGLE CBE = 180

x + 20 = 180

x = 180-20

= 160

I hope im right!!

6 0
3 years ago
Read 2 more answers
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