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3 years ago

Which variable expression represents the following word phrase?

Mathematics

1 answer:

natulia [17]3 years ago

6 0

Answer:

1/2*(5 + n.)

Step-by-step explanation:

The sum of five and a number is 5 + n.

!/2 times it is 1/2*(5 + n).

Note we need to have brackets around the 5 + n because we are multiplying the sum not just 5 or n.

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The figure shown has a parallelogram on top and a rectangle below it:

qwelly [4]

Answer:

954.07 square inches

Step-by-step explanation:

You multiply all the mesurements together.

4 0

3 years ago

Read 2 more answers

Someone Explain to me how 5. Is valid ???

vichka [17]

This is valid through the law of syllogism. If you swap lines 1 and 2, then you'll have this argument:

If I step on a beehive, then I will get stung.

If I get stung by a bee, then it will hurt.

Therefore, if I step on a beehive, then it will hurt

------------------

So it's like connecting a chain together. Point A (stepping on the hive), leads to point B (getting stung), which leads to point C (getting hurt). We can take a shortcut to bypass point B to jump from A to C in one step. Check out the attached image for a visual of what I'm referring to.

6 0

3 years ago

Write an equation of a line that passes through point (5, 3) and is perpendicular to the line 2y = 5x – 8.

anastassius [24]

Answer:

y= -2/5+5

Step-by-step explanation:

A line must always be written in the form y= and the line given is not. Dividing both sides of the equation by 2 you get y=5/2x-4. This is the equation of the line given.

Perpendicular line have gradients that, when they are multiplied, they are equal to -1

The line given multiplied by the gradient of the line(the one required to find)= - 1. That is 5/2×line= -1.

Dividing both sides of the equation by 5/2 you'll get - 2/5. This is the gradient of the line required.

Using the general formula y=mx+c substitute the gradient into the equation. You'll get something like this y= -2/5x+c.

Substitute the given point into the equation. You'll get something like this 3= -2/5(5)+c.

Calculate the value of c. You'll get c=5.

Substitute the value of c into the original equation. You'll get something like this y= -2/5+5

This is the equation: y= -2/5+5

7 0

3 years ago

40% of a number is 44. Find the number

Marta_Voda [28]

Answer:

110

Step-by-step explanation:

40% is the same as 40/100, which is equal to 0.4. Therefore, you can write the following equation:

0.4x=44

Divide both sides by 0.4 to isolate x:

x=44/0.4=110

Hope this helps!

4 0

3 years ago

In a state's pick 3 lottery game, you pay $1.33 to select a sequence of three digits (from 0 to 9), such as 288. if you sel

slega [8]

A. How many different selections are possible?

B. What is the probability of winning?

C. If you win, what is your net profit?

D. Find the expected value

Answer :

A. sequence of three digits (from 0 to 9). so 10 numbers.

We know 3 lottery games. So possible selections = 10^3 = 1000

B. Probability of winning = one outcome / total outcomes

P( winning) = $\frac{1}{1000}$ = 0.001

c. Net profit = winning amount - paid amount

= 384.13 - 1.33 = $382.8

D. expected value

E(x) = net profit * winning probability - paid amount * lost probability

E(x) = 382.8 * 0.001 - 1.33 * 0.999 = -0.95

you expect to lose 95 cents per ticket.

8 0

3 years ago