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harina [27]
2 years ago
7

Please help me after all of my questions are solved i will do a 100 points giveaway

Mathematics
2 answers:
Umnica [9.8K]2 years ago
8 0

Answer:

A and B

Step-by-step explanation:

4(d-2)

4 times d is 4d

4 times -2 is -8

sasho [114]2 years ago
6 0

Answer:

b

Step-by-step explanation:

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Find the value of x in the triangle shown below.<br> 6<br> 10
Jobisdone [24]

Answer:

50

Step-by-step explanation:

The value of x is 50 degrees

bcoz it is isosceles triangle

so two angles are equal

so value of x is 50

I hope this will help u

3 0
2 years ago
Read 2 more answers
Does anyone understand 1 or 2? Please answer
telo118 [61]

Answer:

See below

Step-by-step explanation:

You need to create an equation that will give you the results with the correct units of measurement that they are asking for.  In the first question, they are asking you to give the answer in seconds.  So when you set up your equation, seconds have to be on the top.  The way to think of this is to actually reword the statement they give you by saying in 1 second, light travels 3 x 10 to the 8th power which is 3 with 8 zeros after it.  Then it's easier to set up the equation as below.  The distance from the Sun to Mars is 230,000,000,000 meters which is the same as saying 2300 x 10 to the 8th power.  Notice I counted 8 of the zeros and used that in the exponent but left the rest as part of the original number.  This will make it easier since you are dealing with two number that have exponents raised to the same power of 8.

   1 sec          2300 x 10⁸ m

--------------  X  --------------------  =

 3 x 10⁸ m             1

When you look at this equation it looks difficult but since both the top number and bottom number are exponents raised to the same power, they cancel each other out.  So you can drop the exponent all together and just divide the top number by the bottom number  2300 ÷ 3 which equals 766 seconds.

The second question needs you to take the distant the Sun is from Earth and subtract that from the distance from the Sun to Mars.  By subtracting those two, it will tell you how far Mars is from the Earth.  You can change the numbers a little bit to make it easier on you.  Again you want the exponent for both numbers to be the same to make it easier.  When you subtract two number with the exact same exponent, you can just subtract the number and then use that same exponent as part of your answer.

The distance between the Sun and Mars is 23 with 10 zeros after it.  So that is the same as writing 23 x 10¹⁰.  The distance from the Sun to Earth is said to be 1.5 x 10¹¹ but that is a different exponent.  So if you move the decimal on this number one place to the right, it will be 15 x 10¹⁰.  Now you can easily subtract those numbers without worrying about the exponent since they are the same.

23-15 =8  but now you have to put the exponent back on.  So your answer ends up being

8 x 10¹⁰  or 8 with 10 zeros or 80,000,000,000 meters.

8 0
2 years ago
Find the value of x in the following equation: 9x + 8.0 = -12.7
andriy [413]

Answer: x=  − 2.3 and the total equation looks like this: 9(-2.3) + 8.0 = -12.7

7 0
3 years ago
Dr. Howser recently purchased two new fish tanks (Tank A and Tank B) to place in the waiting area of his office. Each fish tank
Masteriza [31]

Answer/Step-by-step explanation:

How many total fish is Dr. Howser planning on buying?

BOTH tanks hold 120 gallons

Tank A :

3 every 10 --> 120/10 ---> 12

So multiply 3 and 12 ----> 36

36 fishes in tank A

Tank B:

6 every 40 -----> 120/40 ----> 3

So multiply 6 by 3 ----> 18

18 fishes are held in tank B

Add them together:

18 + 36 ----> 54

ANSWER : Dr. Howser is planing on purchesing 54  fish all together.

What will be the ratio of the number of small fish he buys to the number of large fish that he buys

Small --->  36 fish

Large ---> 18 fish  

Small : Large  ----> 36:18

ANSWER: 36:18

if you need it siplified it would be 2:1

4 0
2 years ago
When the outliers are removed, how does the mean change?
jok3333 [9.3K]
<span>In statistics, an outlier is an observation point that is distant from other observations.

Given the points
15, 23, 24, 26, 27 and 35

Notice, that the points 15 and 35 are distance from the other points and hence are outliers.

The mean of the observations including the outliers is given by
\frac{15+23+24+26+27+35}{6} = \frac{150}{6} =25

The mean of the observations without the outliers is given by
\frac{23+24+26+27}{4} = \frac{100}{4} =25

Therefore, </span>when <span>the outliers are removed, the mean remains the same.</span>
3 0
3 years ago
Read 2 more answers
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