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3 years ago

A and b are odd numbers.

Mathematics

2 answers:

stepladder [879]3 years ago

8 0

Answer:

2(3+7)=20 and 20 is a multiple of 4

Step-by-step explanation:

4 times 5 equals 20, which makes it a multiple of 4

3 and 7 are both odd, and added together get 10. Times that by 2 and you get 20

Ksenya-84 [330]3 years ago

3 0

Answer:

let a=3 and b=5

2(a+b) then

2(3+5)=16

16 is a multiple of 4

Step-by-step explanation:

Any two odd numbers added together make an even number.

Any even number multiplied by 2 is divisible by 4

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The volume of a gas is 10.0 liters and its pressure is 1.5 atm. If the pressure is decreased to 0.75 atm,

JulsSmile [24]

Answer:

The new volume is 20litres

Step-by-step explanation:

This problem bothers on the expansion of gases

According to Boyle's law

The volume of a given mass of gas at constant temperature is inversely proportional to the pressure

P∝1/v

Pv= constant

Given data

P1= 1.5atm

v1 = 10 litter

P2=0.75atm

v2=?

Applying P1v1= P2v2

v2= P1v1/P2

v2= 1.5*10/0.75

v2= 15/0.75

v2= 20litres

3 0

3 years ago

Which expression is equivalent to the fraction below? 3/5

vladimir1956 [14]

Answer:

.6, 6/10, 15/25

Step-by-step explanation:

hope this helps!❄︎

8 0

2 years ago

Question 26 y What is y when x is 33? ROUND YOUR ANSWER TO THE NEAREST HUNDRETH.

Katarina [22]

Answer:

y = 4.13

Step-by-step explanation:

Plux in x = 33 into y = 1/8x.

y = 1/8(33)

y = 4.125

Round to the nearest hundreth.

y = 4.13

4 0

3 years ago

Pre-Cal - Someone please help! (Image Attached)

olasank [31]

Note that $\displaystyle{ \sin30^{\circ}= \frac{1}{2}$ and $\displaystyle{ \cos30^{\circ}= \frac{ \sqrt{3}}{2}$ .

From the unit circle, we can check that $\sin30^{\circ}$ and $\sin(-30)^{\circ}$ have the same value, but opposite signs, that is:

$\sin(-30)^{\circ}=-\sin(30)^{\circ}=-\frac{1}{2}$ .

Thus,
$\displaystyle{ \cos(x-y)= \cos(-30^{\circ}-60^{\circ})=cos(-90^{\circ})$ .

Note that $cos(-90^{\circ})$ is the x-coordinate of the lowest point on the unit circle, that is (0, -1). Thus $cos(-90^{\circ})=0$

Answer: 0

6 0

3 years ago

How many even prime numbers are 0 1 2 3

matrenka [14]

A prime number can be divided evenly only by 1, or itself. 
And it must be a whole number greater than 1.

Therefore, the prime numbers between 0, 1, 2, 3 are

2 and 3

and the only even one among those two is two, so your answer would be One.

7 0

3 years ago