3 years ago

How to do this in math

Mathematics

1 answer:

Mandarinka [93]3 years ago

6 0

Answer:

How to do what in math?

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If m1=35° and m2=75°, what is m3?

Sveta_85 [38]

Answer:

m3 should be 70°

all internal angles of a triangle add up to 180

180-35-75 = 70

4 0

3 years ago

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Write each percent as a decimal a 80% B 3% C 12.5% D 125%

Tema [17]

Answer:

a .8

b .03

c .125

d 125.0

Step-by-step explanation:

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3 years ago

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At a bargain store, Tanya bought 3 items that each cost the same amount. Tony bought 4 items that each cost the same amount, but

babunello [35]

If x is the amount that Tanya paid for each item, then Tony's items would be x-2.25. So:
3x=4(x-2.25)

3x=4x-9
x=9
x-2.25=6.75
Tanya spent $9 on each item; Tony spent $6.75 on each of his items

3 0

3 years ago

Someone help me please

Bond [772]

Answer:

Step-by-step explanation:

Plug in the standard deviation formula. This is new to me but it took some research.. Hope it helps

6 0

3 years ago

Question 11 Find the value of y. X+ 13 45° No links please! Thanks for the help!

9966 [12]

Answer:

First option: $13 \sqrt{2}$

Step-by-step explanation:

$cosθ = \frac{adj}{hyp}$

$cos45° = \frac{13}{y}$

Multiply both sides by y:

$y(cos45°) = 13$

$y ( \frac{ \sqrt{2} }{2} ) = 13$

$y = 13 \div \frac{ \sqrt{2} }{2}$

$y = 13 \times \frac{2}{ \sqrt{2} }$

$y = \frac{26}{ \sqrt{2} } ( \frac{ \sqrt{2} }{ \sqrt{2} } )$

$y = \frac{26 \sqrt{2} }{2}$

$y = 13 \sqrt{2}$

7 0

3 years ago

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