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xxMikexx [17]
3 years ago
9

Solve the equation using the Properties of Equality.

Mathematics
1 answer:
Simora [160]3 years ago
4 0

Answer:

7a + 3 -3 =45 - 3

7a + 0 = 42

7a = 42

7a/7 = 42/7

a = 6

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Can you simplify 8/15+1/6
belka [17]

Answer:

Yes and the answer is 16/5

Step-by-step explanation:

Find the reciprocal of the divisor

Reciprocal of 1/6 : 6/1

Now, multiply it with the dividend

8/15 ÷ 1/6 = 8/15 × 6/1

And after that you get 48/15 but after reducing the fraction, the answer is 16/5. ( In mixed form, 3 1/5 )

I hope this helps and I am a middle school student answering this question.

5 0
2 years ago
Read 2 more answers
5. When I sine an angle like 60°, it gives me a value like 0.866025403. What does this number represent?
PolarNik [594]

Answer:

See below

Step-by-step explanation:

The number you described is the same as sin(60^{\circ})=\frac{\sqrt{3}}{2} where the sine of an angle is the ratio between a right triangle's opposite side to the angle and the hypotenuse. So, in this case, if we had a right triangle with a height of \sqrt{3} units and a hypotenuse of 2 units, the ratio between the two sides will result in the value you provided. This right triangle in particular would be a 30-60-90 triangle.

In the case of a unit circle, it’s the y-coordinate of the point where a 60° angle in the standard position intersects a unit circle and a right triangle is created from that.

5 0
3 years ago
Please help me with math please
goldfiish [28.3K]

Answer:

no mode

The median and mode are 12

Step-by-step explanation:

The mode is the number that appears most often

Since no number repeats there is no mode

The mean is the average

Add up all the numbers

(12+12+12+12+13+13+15)/7 = 89/7 = 12 5/7

The median is the middle number

There are 7 numbers

7/2 = 3.5

The 4th number is the median

The 4th number is 12

The mode is the number that appears most often which is 12

4 0
3 years ago
Kathey wants to rent a car for 4 days, and she's interested in the collision damage waiver but not the loss damage waiver. If th
aev [14]

Answer

Find out the  what is her total rental cost .

To prove

As given

Kathey wants to rent a car for 4 days .

she's interested in the collision damage waiver but not the loss damage waiver.

If the daily rate is $39 and the CDW is $40 .

Thus

Total rental cost = 4 × 39 + 40

                           = 156 + 40

                           = $ 196

Therefore the total rental cost is $196.

Option (A) is correct .


3 0
3 years ago
Read 2 more answers
What is the factored form of 27a^6+8g^12
Margarita [4]
27a^6+8g^{12} = (3a^2)^3+(2g^4)^3= \\ =(3a^2+2g^4)(9a^4-6a^2g^4+4g^8)
6 0
3 years ago
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