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hjlf
3 years ago
11

CAN SOMEbody please help me

Mathematics
1 answer:
tensa zangetsu [6.8K]3 years ago
4 0
Https://www.calculatorsoup.com/calculators/geometry-solids/surfacearea.php
use this calculator it’s super helpful with lots of these kinds of questions!
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A particular shade of orange paint has 2 cups of yellow paint for every 3 cups of red paint.According to the double number line,
Amanda [17]

Answer:9 cups of red paint

Step-by-step explanation:1 batch = 3 cups of paint and you need to find the number of cups of paint for 3 batches so you multiply 3 x 3 and get 9. Hope this helped!!!:)

4 0
3 years ago
A leprechaun places a magic penny under a girl's pillow. The next night there are 2 magic pennies under her pillow. The followin
dezoksy [38]

Answer:

<u><em></em></u>

  • <u><em>32 days</em></u>

Explanation:

Simulate (build a table) the growing of the number of pennies for some nights to figure out the pattern:

First night:          1 penny = 2⁰

Second night:    1 × 2 pennies = 2¹

Third night:        2 × 2 = 2²

Fourth nigth:      2² × 2 = 2³

nth night:           2ⁿ⁻¹

You want 2ⁿ⁻¹ ≥ 2,000,000,000

Which you solve in this way:

  • 2ⁿ⁻¹  ≥ 2,000,000,000

  • 2ⁿ⁻¹ ≥ 2,000,000,000

  • n-1 log (2)  ≥ log (2,000,000,000)

  • n - 1  ≥ log (2,000,000,000) / log (2)

  • n - 1 ≥ 30.9

  • n ≥ 31.9

Since n is number of days, it is an integer number, so n ≥ 32.

Hence, she will have a total of more than $ 2 billion after 32 days.

You can prove that by calculating 2³² = 2,147,483,648.

5 0
3 years ago
Help please.............................................
BaLLatris [955]

Answer:

B.

Step-by-step explanation:

(-7x + 4)(-7x - 4)

= 49x^2 - 28x + 28x - 16

= 49x^2 - 16.

5 0
3 years ago
Read 2 more answers
PLEASE HELP ME OUT, I’LL GIVE U 100 POINTS AND BRAINLY, please someone, I need it done soon :((
34kurt

Answer:

first \\ y \: intercept = 2 \\ slope =  \frac{0 - 2}{4 - 0}   = - 0.5 \\

second \\ y \: intercept =  - 2 \\ slope =  \frac{ - 1 - ( - 2)}{6 - 0}  =  \frac{1}{6}

third \\ slope =  \frac{100 - 60}{3 - 2}  = 20 = add \: each \: month \\ start \: money = 60 - 1 \times 20 = 40

5 0
3 years ago
A pair of shoes originally cost $60. If they are on sale with a mark-down of 25%, how much do they cost now?
pychu [463]
$45!

if u were discounting something, you would do ( .discount amount x original price ) - original amount! you will get a “-“ with the answer, just remove the “-“!!
4 0
3 years ago
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