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Ahat [919]
2 years ago
15

Three coins are tossed.Find the probablility that two land on heads.

Mathematics
1 answer:
REY [17]2 years ago
4 0

Answer:

let me just say this

Step-by-step explanation:

you're luck not mine so sorry if this didnt help

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Find x and IJ is HK is an altitude of triangle HIJ
ss7ja [257]
3x+3=90
subtract 3 from both sides
3x=87
divide both sides by 3
x=29

To find IJ, plug in the x value
x+8+x-9
29+8+29-9
57=IJ
4 0
2 years ago
Without subtracting 8.5 - 4.64, determine what digit will be in the hundredths place. Explain
murzikaleks [220]
8.5 is the same as 8.50, right? So just take the digit in the hundredth place of both decimals and subtract. You'd be doing 0-4 so you can go ahead and borrow a number to make 10-4, which equals 6. So without subtracting 8.5 and 4.64, you can determine that 6 will be in the hundredth place. Hope this helps!
3 0
3 years ago
The painting shown on the right has an area of 300 in^2. what is the value of x?
Nataly [62]

Answer: X = 10.20240940...

Step-by-step explanation:

x(2x + 9) = 2x^2 + 9x

2x^2 + 9x = 300

- 300 ON BOTH SIDES

2x^2 + 9x - 300 = 0

SOLVE USING THE QUADRATIC FORMULA

x = -b +/- all root (b)^2 - 4(a)(c) All over 2(a)

When all the values are plugged in:

When using "+" in the equation you should get:

x = 10.20240940…

When using "-" in the equation you should get:

x = −14.70240940…

Now.. you CANNOT have a negative length, so you cross of the negative value leaving you one value for x which is 10.20240940...

YOUR ANSWER IS:    x   =  10.20240940...

4 0
1 year ago
Somebody helpppppp...................???????
olga55 [171]
I’m pretty sure it’s the second one
4 0
3 years ago
A person is canoeing on a river. Her overall speed is 3.4 mile(s) per hour up river and 5.6 mile(s) per hour down river. Find th
PIT_PIT [208]

Answer:

a) v_{river} = 1.1\,mph, b) v_{person} =4.5\,mph

Step-by-step explanation:

Overall speeds up river and down river are modelled by following expressions:

Up River

-3.4\,mph = v_{river} - v_{person}

Down River

5.6\,mph=v_{river} + v_{person}

After some algebraic manipulations, speeds are found:

v_{river} = 1.1\,mph

v_{person} =4.5\,mph

5 0
2 years ago
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