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Ratling [72]
2 years ago
5

Help ASAP (Math) will give brainiest and points!!

Mathematics
1 answer:
nordsb [41]2 years ago
3 0

Answer:

2.17 \times 10^{-1}

Step-by-step explanation:

(7 \times 10 ^{-6}) + 0.26 - (5 \times 10^{-2}) = \frac{7}{10^3} + \frac{26}{10^2}-\frac{5}{10^2}

                                              = \frac{7 + (26 \times 10) - ( 5 \times 10)}{10^3}\\\\=\frac{7 + 260 - 50 }{10^3}\\\\=\frac{217}{10^3}\\\\= 2.17 \times 10^2 \times 10^{-3}\\\\= 2.17 \times 10^{-1}

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21^3 times 4^2 brainly for the correct n nice answer
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Step-by-step explanation:

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mezya [45]

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mark just bought a new vacuum cleaner for $220. he used a 30% off coupon and then paid 5.1% sales tax. what was his final cost?
MissTica

Answer: $161.85

Step-by-step explanation: $220 is the original price.  you want to first deduct the 30% tax.  Find out the 30% tax by multiplying 220 x .30 = 66.  So deduct the $66 from $220 to get $154.  That is the price.  You will need to add on the 5.1% tax.  So to get the tax you multiply $154 by .051 to get $7.854.  Add that to the $154 sales price to get a total of $161.854.  But since money, you can't have a portion of a cent so you round the 4 down

8 0
3 years ago
Find the image of (-1,3) obtained by translating 2 units down, followed by a rotation of 270 degrees counterclockwise about the
slamgirl [31]

Answer:

[1, 1]

Step-by-step explanation:

Translation → [-1, 3] moves down to [-1, 1]

Now, a <em>90°-clockwise rotation</em> is the exact same as a <em>270°-counterclockwise rotation</em>, and according to the <em>270°-counterclockwise rotation</em> [<em>90°-clockwise rotation</em>] <em>rule</em>, you take the y-coordinate, bring it over to your new x-coordinate, and take the OPPOSITE of the x-coordinate and set it as your new y-coordinate:

<u>Extended Rotation Rules</u>

  • 270°-clockwise rotation [90°-counterclockwise rotation] >> (<em>x, y</em>) → (<em>-y, x</em>)
  • 270°-counterclockwise rotation [90°-clockwise rotation] >> (<em>x, y</em>) → (<em>y, -x</em>)
  • 180°-rotation >> (<em>x, y</em>) → (<em>-x, -y</em>)

Then, you perform your rotation:

270°-counterclockwise rotation [90°-clockwise rotation] → [-1, 1] moves to [1, 1]

I am joyous to assist you anytime.

7 0
3 years ago
can i help me find four numbers such that when the first of them is divisible by 4, when the second is multiplied by 4, when the
FromTheMoon [43]

Answer:

1

Step-by-step explanation:

4÷1=4 4×1=4 4+1 = 5 5-1 = 4

4 0
3 years ago
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