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igor_vitrenko [27]
3 years ago
8

.A student earned 75 out of 100 in Col110 quiz for the first time, then she earned 85 out of 100 in the second time for the same

quiz, what was the percentage change(increase or decrease) in her grade? Round your answer nearest to hundredth
Mathematics
1 answer:
saveliy_v [14]3 years ago
3 0

Answer: increase

Step-by-step explanation:

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Find the value of log, 1/2 462 to four decimal places.
Nimfa-mama [501]

Answer:

  -8.8517

Step-by-step explanation:

We assume you want the log of 462 to a base of 1/2. Using the change of base formula, this is ...

  \log_{0.5}{462}=\dfrac{\log{462}}{\log{0.5}}=-8.8517

7 0
3 years ago
Surface area of the prism
Trava [24]

length = 12 yd

width = 10 yd

height  = 12 yd

diagonal  = 19.697715603592 yd

total surface area = 768 yd2

lateral surface area = 528 yd2

bottom surface area = 120 yd2

volume =  1440 yd3

6 0
2 years ago
Read 2 more answers
1. tentukan hasil dari 243⅔?
Vesnalui [34]

Penjelasan langkah demi langkah:

1)

= 243^{\frac{2}{3} }\\= (\sqrt[3]{243})^2\\= 7^2\\= 49

2) √32 +3√18-2√50

= √16*2 +3√9*2-2√25*2

= 4√2 + 3(3√2)-2(5√2)

= 4√2 + 9√2-10√2

= 13√2-10√2

= 3√2

3) 1000 ⅔×64⅙

 = (\sqrt[3]{1000}) ^2 \times (2^6)^{1/6}  \\= 10^2 \times 2\\= 100 \times 2\\= 200

4) 3/4+√2

3/4+\sqrt{2} \\= \frac{3+4\sqrt{2} }{4 }

5) 2√3×√18

= 2√3×√9*2

= 2√3×3√2

= (2*3)(√3*√2)

= 6√6

6) 12/3+√3

= 4+√3

7) √1000—2√40

= 10 -2 (√4*10)

= 10-2(2√10)

= 10 - 4√10

8) 2- ¹+3-¹

= \frac{1}{2} + \frac{1}{3}\\ = \frac{3+2}{6}\\ = \frac{5}{6}

9)

\frac{5}{\sqrt{5} }\\ merasionalisasikan\\= \frac{5}{\sqrt{5} }\times \frac{\sqrt{5} }{\sqrt{5} }\\= \frac{5\sqrt{5} }{\sqrt{25} }\\= \frac{5\sqrt{5} }{5}\\ = \frac{\sqrt{5} }{1}

Jika pernyataannya opsional, penyebutnya adalah 1

10) 2√3×√18

= 2√3×√9*2

= 2√3×3√2

= (2*3)(√3*√2)

= 6√6

7 0
3 years ago
: The proliferation of the Internet has given rise to a new method of advertising, called spamming, that essentially is a more c
Dmitry [639]

The number of potential customers that the company has reached is 10,000  e--mail addresses.

<h3>What is a word problem in mathematics?</h3>

A word problem is a real-life problem and it can be approached with the use of a mathematical model, interpretation into variables, and arithmetic operations usage.

Given that:

  • A company buys three mailing lists with 2500, 3500, and 4000 addresses respectively.

The number of potential customers that the company has reached is:

= 2500  3500 + 4000 e--mail addresses.

= 10,000  e--mail addresses.

Learn more about word problems here:

brainly.com/question/13818690

#SPJ1

8 0
2 years ago
work out the equation of the line which passes through the point (-1, 2) and is paralell to the line y = x + 4
notka56 [123]

Step-by-step explanation:

working g and everything is above

hope its of help

3 0
3 years ago
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