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3 years ago

Im a little confuse on this so i will need some help please!

Mathematics

2 answers:

Scorpion4ik [409]3 years ago

6 0

Answer:

The answer is C.

If I'm wrong, then I'm sorry- but have a wonderful day though!

deff fn [24]3 years ago

4 0

Answer:

Step-by-step explanation:

At least 2 heads means it cold have 2 heads or 3 heads

Count how many posibilities to have 2H or 3H are there

HHH, HHT, HTH, THH they are 4 posibilities

the probability to have at list 2 heads is

P = #of 2H and 3H / #of all outcomes = 4/ 8 = 1/2

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Solve for x and y. 4x-3y=16 -2x+4y=-2 DUE 2/7/17!

Trava [24]

$\left \{ {{4x-3y=16\:(I)} \atop {-2x+4y=-2\:(II)}} \right.$

Multiply the 2nd equation by (-4). This will eliminate the x's when you add the two new equations together.
 $\left \{ {{4x-3y=16\:\:\:\:\:\:\:\:\:\:} \atop {-2x+4y=-2\:*(-4)}} \right.$
$\left \{ {{\diagup\!\!\!\!4x-3y=16} \atop {-\diagup\!\!\!\!4x+8y=-4}} \right.$
--------------------
$5y = 12$
$\boxed{\boxed{y = \frac{12}{5}}}\end{array}}\qquad\quad\checkmark$

Let's replace the value found in the first equation:
$4x-3y=16\:(I)$
$4x-3*( \frac{12}{5}) =16$
$4x - \frac{36}{5} = 16$
least common multiple (5)
$\frac{20x}{\diagup\!\!\!\!5} - \frac{36}{\diagup\!\!\!\!5} = \frac{80}{\diagup\!\!\!\!5}$
$20x - 36 = 80$
$20x = 80 + 36$
$20x = 116$
$x = \frac{116}{20} \frac{\div4}{\div4} \to\: \boxed{\boxed{x = \frac{29}{5} }}\end{array}}\qquad\quad\checkmark$

4 0

4 years ago

How do you do partial quationet

Orlov [11]

In partial-quotients division, it takes several steps to find the quotient. At each step, you find a partial answer (called a partial quotient); then you find the product of thepartial quotient and divisor and subtract it from the dividend. Finally, you add all thepartial quotients to find the final quotient.

7 0

3 years ago

Please help me, ill give brainliest

Rzqust [24]

Answer:

m∠RST = 20

Step-by-step explanation:

Sine the line SP bisects ∠RST, we know that the two angles that were formed are equal. Set ∠RSP equal to ∠PST.

∠RSP = ∠PST

3x - 2 = 9x - 26

(3x - 2) + 2 = (9x - 26) + 2

3x = 9x - 24

3x - 9x = (9x - 24) - 9x

-6x = -24

(-6x)/-6 = -24/-6

x = 4

Now that you know the value of x, add ∠RSP and ∠PST. This will give you m∠RST.

m∠RST = (3x - 2) + (9x - 26)

m∠RST = 3x - 2 + 9x - 26

m∠RST = 12x - 2 - 26

m∠RST = 12x - 28

m∠RST = 12(4) - 28

m∠RST = 48 - 28

m∠RST = 20

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3 years ago

If m 4 = (3x + 7) , and m 5 = (9x 43) , find m UPS.

IRISSAK [1]

Can you be more specific pls

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3 years ago

Convert 720C to Kelvin

Snezhnost [94]

Answer:

720°C + 273.15 = 993.15K

hope it's helpful for you

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3 years ago