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Anton [14]
3 years ago
15

can someone please answer this question for me with stood please? Also don't mind the weird doodle on the side..

Mathematics
1 answer:
brilliants [131]3 years ago
5 0
Whats number question is it?

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Find the absolute value of |-93.1| and |3-8|
Gelneren [198K]
The answer is 93.1 and 5
7 0
3 years ago
PLEASE HELP ME!
algol13

Step-by-step explanation:

1.\sum_{i=1}^{5}3i

The simplest method is "brute force".  Calculate each term and add them up.

∑ = 3(1) + 3(2) + 3(3) + 3(4) + 3(5)

∑ = 3 + 6 + 9 + 12 + 15

∑ = 45

2.\sum_{k=1}^{4}(2k)^{2}

∑ = (2×1)² + (2×2)² + (2×3)² + (2×4)²

∑ = 4 + 16 + 36 + 64

∑ = 120

3.\sum_{k=3}^{6}(2k-10)

∑ = (2×3−10) + (2×4−10) + (2×5−10) + (2×6−10)

∑ = -4 + -2 + 0 + 2

∑ = -4

4. 1 + 1/4 + 1/16 + 1/64 + 1/256

This is a geometric sequence where the first term is 1 and the common ratio is 1/4.  The nth term is:

a = 1 (1/4)ⁿ⁻¹

So the series is:

\sum_{j=1}^{7}(\frac{1}{4})^{j-1}

5. -5 + -1 + 3 + 7 + 11

This is an arithmetic sequence where the first term is -5 and the common difference is 4.  The nth term is:

a = -5 + 4(n−1)

a = -5 + 4n − 4

a = 4n − 9

So the series is:

\sum_{j=1}^{5}(4j-9)

5 0
3 years ago
The answer is 12, help my explain the answer!!!!!
Fynjy0 [20]

HI i know i am a week late but i hope this helps in some way. :)

X = Mateo Trading cards

4x-7 = Camila Treading cards

(4x-7) +x>51

4x-7+x>51

5x-7>51

5x>51+7

5x>58

x>58/5

x>11.6 = 12

Mateo can have at least 12 trading cards  


6 0
3 years ago
Macy’s is having a sale in which all jeans at $30. The sales tax is 8%. If John buys n pairs of jeans during this sale, the tota
Amiraneli [1.4K]

This expression is correct. It shows the price John pays for the jeans on the left side of the + symbol (30n), and the amount of tax he has to pay on the right side of the symbol (0.08(30n)).

Hope this helps!

3 0
2 years ago
(b²) ____ = b⁻⁶<br> find the missing exponent
allsm [11]
(b^2)^{-3}=b^{2*(-3)}=b^{-6}

<span>the missing exponent is -3</span>
6 0
3 years ago
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