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UNO [17]
3 years ago
8

Can someone pls help and ty

Mathematics
2 answers:
IgorC [24]3 years ago
7 0

Answer:

16.3

Step-by-step explanation:

I'm assuming side a is the hypotenuse.

Cosine rule is a=\sqrt{a^{2} +b^{2}-2ab*cosC }

so \sqrt{10^{2}+8^{2} -2*10*8*cos130} = 16.33542217

The attached picture is a diagram if you are confused

The labelling of the sides doesn't matter as long as the unknown side is c

SOVA2 [1]3 years ago
4 0

Answer:

well its obtuse and obtuse triangles are more than a right angle or should i say not 90* degrees

Step-by-step explanation:

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PLEASE HELP ME YOU GUYSSS
notsponge [240]

Answer:

c i got it right on test

Step-by-step explanation:

3 0
3 years ago
If you flip two coins 76 times, what is the best prediction possible for the number of times both coins will land on tails? ​
ioda

Answer:

38 times

Step-by-step explanation:

A coin has two sides, so there is a 50% chance it will land on either side (assuming perfect conditions and that the coin cannot land vertically). With that in mind, if you flip a coin 76 times, 50% or 1/2 of the times the coin should land on tails. That is 36 times. (Once again, this is under perfect testing conditions. In real life, you probably wouldn't get an even split after only 76 flips.)

Hope this helps :)

3 0
3 years ago
I need help on understanding this concept
Sedbober [7]
So the slope formula is m= (y2-y1) /
(x2-x1). You can label -2 as x1 and 11 as y1. And the other point is x2 and y2. They you just plug it in the m= (y2-y1) /
(x2-x1) formula and solve. To get a better understanding look up, how to find the slope of a line with two points. Hope it helps
3 0
3 years ago
Can someone help with this
mixas84 [53]

Step-by-step explanation:

-10-2x = 3x+15

5x = -25

x= -5

5 0
2 years ago
Round this number to the nearest million<br><br> 135,458,267
Svet_ta [14]
1,000,000 is million
to round look at hundred thousand place or 100,000
see number before million (after comma)

if it is greater than or equal to 5, add 1 to current value of million and say all after is 0
if less than 5 then leave million value as is and make after 0


135,458,267
hundred thousand value is 4
4<5
135,000,000
4 0
3 years ago
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