3 years ago

Which of the following is the appropriate notation when calculating

Mathematics

1 answer:

Hunter-Best [27]3 years ago

5 0

Answer: P(AB) = 3/8

Step-by-step explanation:

You simply multiply P(AuB) by P(B)

3/7 * 7/8 = 3/8

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Find the slope x=4/3y-1

Vlada [557]

Answer: it is 4/3

Step-by-step explanation:

Use the slope-intercept form y=mx+b to find the slope m

m=43

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3 years ago

For what values of a is the distance between P(a,3) and Q(5,2a) greater than √26

Novay_Z [31]

$P(a,3)\ \ \ Q(5,2a)\\\\ PQ=\sqrt{(x_Q-x_P)^2+(y_Q-y_P)^2}\\\\ PQ>\sqrt{26}\\\\\sqrt{(5-a)^2+(2a-3)^2}>\sqrt{26}\\\\\sqrt{25-10a+a^2+4a^2-12a+9}>\sqrt{26}\\\\\sqrt{5a^2-22a+34}>\sqrt{26}\ \ |^{2}\\\\
5a^2-22a+34=26\ \ \ |Subtract\ 26\\\\
5a^2-22a+8=0\ \ \ |Factoring\\\\(a-4)(5a-2)=0\\\\
a=4\ \ or\ \ 5a=2\\
a=4\ \ or\ \ a=\frac{2}{5}$

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3 years ago

Can u help me guys this is hard

Nadusha1986 [10]

25% as a fraction is 1/4 and as a decimal it’s 0.25
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3 years ago

Numerical coefficient of 3x^2

Reika [66]

Answer:

-5

Step-by-step explanation:

6 0

3 years ago

Plz answer hurry. 20 points for right answer

lapo4ka [179]

Did You Figure This Out I Need Help Too. Lol