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solniwko [45]
3 years ago
10

Is 9.9 x 10/-28 in scientific notation

Mathematics
1 answer:
Katen [24]3 years ago
4 0
Yes and no you do not use the slash you use ^
You might be interested in
Question 4: *<br> What are the solutions to the equation 4x2 – 52x + 169 = 121?
Rasek [7]

Answer:

1.0769

Step-by-step explanation:

multiply 4x2 to get 8

move -52x over the equal sign to make it 52x

so we get something like this: 8 + 169 = 121 + 52x

also move 121 over the equal sign to make it -121

Like this: 8 + 169 - 121 = 52x

Now when you simply, you will get 56 = 52x

Divide both sides by 52

Final answer is 1.0769

8 0
3 years ago
Evaluate the sum of the following finite geometric series.<br> 5+15+45 +135+ . . . + 1215<br> Sn=1
Nata [24]

Answer:

1820

Step-by-step explanation:

The sum of the first n terms of a geometric series with common ratio r and first term a is:

a(1-r^n)/(1-r). Plugging this in 5(1-3^6)/(1-3)=1820

5 0
3 years ago
A recipe for cake needs 3/4 if a cup of milk. you are making 1/2 of the recipe.his much milk do you need
r-ruslan [8.4K]
I would say it's 3/8 of a cup because if you multiply 3/4 by 2 it would be 6/8. It's the same amount but just a different measurement. Now just take 3 away from 6/8 and you have 3/8 which is half of 3/4.
4 0
3 years ago
Read 2 more answers
73.7 is 55% of what number?
Vera_Pavlovna [14]

Answer:

a.) Let the total number be : x

∴(73.7÷x) ×100 = 55%

∴x= (73.7×100) ÷ 55

=> 7370÷55

∴x=134

Thus, Option-A.

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

b.) Let the percentage  be : x

∴x= (46÷65) ×100  

∴x= (0.707) × 100

∴x=70.7%

Thus, Option-B.

MARK AS BRAINLIEST.

4 0
3 years ago
Help me with this question
Molodets [167]

Answer:

Pretty sure its 7.5 units²

Step-by-step explanation:

5·3=15÷2=7.5

Doing area with triangles is kind of the same as rectangle, just do base × height. But then divide it by two.

For example: base=3, height=7. With rectangles it would be 21 units².

But with triangles it would be 3·7=21 divided by 2, it would be 10.5 units²

3 0
3 years ago
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