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3 years ago

Evaluate the expression x - 3y when x = 5 and y = 3

Mathematics

2 answers:

pickupchik [31]3 years ago

8 0

Answer:5- (3×3)

Step-by-step explanation:3×3= 9 so it's 5-9=-4

KengaRu [80]3 years ago

5 0

Answer:

Step-by-step explanation:

5-(3 x 3)

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Translate each verbal phrase into an algebraic expression:<br> 1. 6 inches by the number n

Diano4ka-milaya [45]

6” x number so you need to multiple

3 0

3 years ago

How do I solve the y= x/11- 11x<br><br> d/dx ( x/11- 11/x)

ArbitrLikvidat [17]

$\bf \cfrac{d}{dx}\left[ \cfrac{x}{11}-\cfrac{11}{x} \right]\implies 
\cfrac{d}{dx}\left[ \cfrac{x}{11} \right]-\cfrac{d}{dx}\left[\cfrac{11}{x} \right]
\\\\\\
\cfrac{1}{11}\cdot \cfrac{d}{dx}\left[x \right]-11\cdot \cfrac{d}{dx}\left[\cfrac{1}{x} \right]
\implies 
\cfrac{1}{11}\cdot 1~~-~~11\cdot \cfrac{d}{dx}[x^{-1}]
\\\\\\
\cfrac{1}{11}~~-~~11\cdot -x^{-2}\implies \cfrac{1}{11}+\cfrac{11}{x^2}
\implies 
\cfrac{x^2+121}{11x^2}$

5 0

4 years ago

Two players, A and B, alternately and independently flip a coin and the firstplayer to obtain a head wins. Assume player A flips

mart [117]

Answer:

Probability that A wins is 2/3.

Step-by-step explanation:

player A can win in 2 ways

1) Player A wins immediately by getting head

2) Player A loses immediately by getting tail but wins ultimately as player B gets losses.

a) Probability of 1 to happen is 1/2.

b) Similarly for the event 2 to happen the condition is that A get's a tail and B losses.

Let probability that A wins is 'p' thus we have

$p=P(1)+P(2)\\\\p=\frac{1}{2}+\frac{1}{2}\times (1-p)\\\\$

Solving for 'p' we get

p= 2/3.

7 0

4 years ago

If a circle has circumference 100pi units, what is it’s area

const2013 [10]

Answer:

2500pi^2 units

Step-by-step explanation:

Circumference = pi * diameter

Circumference = pi * 100

Radius = diameter/2

Radius = 50

Area = pi * radius^2

Area = pi * 50^2

Area = pi * 2500

Area = 2500pi^2 units

8 0

3 years ago

We are given that lines a and c intersect at point S. Translate line a down line c until point S reaches point Q. Call the new l

Pavel [41]

Answer:

The lines a and b are parallel

Step-by-step explanation:

When we will translate line a, then the new line b will be formed.

Now, as translation preserves orientation each point on line a will be equidistant from line b , thus holding the condition and satisfying the property of two parallel lines.

Hence, line a and line b are parallel to each other.

8 0

4 years ago

Read 2 more answers