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Svetllana [295]
3 years ago
15

Find the sum of 6.28x10^3 and 9.5x10^1 in standard form

Mathematics
1 answer:
anyanavicka [17]3 years ago
3 0

Answer:

6.375 x 10^3

Step-by-step explanation:

Topic: Numbers / Conversion to Standard Form

If you would like to understand on this conversion etc, you can check out my Instagram page (learntionary) where I post notes and mathematics tips. Thanks!

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Expand the following expression <br> (x + 2)(x² – 3x - 1)
Cloud [144]

Answer:

x^{3} - x^{2}  - 7x -2

Step-by-step explanation:

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4 0
3 years ago
Read 2 more answers
(a) Use the fundamental theorem of algebra to determine the number of roots for 2x^2 + 4x + 7
zysi [14]

Answer:

Step-by-step explanation:

A 2nd order polynomial such as this one will have 2 roots; a 3rd order polynomial 3 roots, and so on.

The quadratic formula is one of the faster ways (in this situation, at least) in which to find the roots.  From 2x^2 + 4x + 7 we get a = 2, b = 4 and c = 7.

Then the discriminant is b^2 - 4ac, or, here, 4^2 - 4(2)(7), or -40.  Because the discriminant is negative, we know that the roots will be complex and unequal.

Using the quadratic formula:

       -4 ±√[-40]         -4 ± 2i√10

x  = ------------------ = ------------------

                4                       4

                                       -2 ± i√10

Thus, the roots are x = ------------------

                                               2

4 0
3 years ago
C(25,10)<br> Find permutation and combination
Verizon [17]

C(25,10)= 3268760

P(25,10)=11861676288000

hope it helps but these are very big numbers :d

6 0
3 years ago
Which is equivalent to 4(x - 1)? <br>x- 4 <br>4x-1 <br>4x - 3 <br>4x - 4​
ser-zykov [4K]

Answer:

4x-4

Step-by-step explanation:

Hope this helps!!!!!✨✨✨

8 0
2 years ago
What would be the sum of the lengths of the first and second diagonals rounded to the nearest whole number?
drek231 [11]

Answer:

16.17684994

Step-by-step explanation:

First diagonal

x^2 = a^2 + b^2

x^2 = 5^2 + 6^2

x^2 = 61

x ≈ 7.810249676

Second diagonal

x^2 = a^2 + b^2

x^2 = 7.810249676^2 + 3^2

x^2 = 70

x ≈ 8.366600265

Sum of both diagonals

8.366600265 + 7.810249676

= 16.17684994

6 0
3 years ago
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