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sladkih [1.3K]
3 years ago
9

MERRY CHRISTMASS!!! giving brainlist if u get this right!! thX

Mathematics
1 answer:
AURORKA [14]3 years ago
7 0
10%, because 9.5- 8.9 = 0.6 therefore
0.6/9.5 x 100 = 6% So the value is actually 10% tenth of a percent.
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When rounding to the nearest hundred, which of the following numbers round to 400?
shepuryov [24]

The answer is 423 since it's the closest number to 400 from all the numbers listed above.

The numbers 351 and 445 would also round to 400 but they are not the closest ones.


Hope it helped,


BioTeacher101

4 0
3 years ago
Read 2 more answers
Y
mina [271]

Answer:

y inversely proportional to 1/x

y=4, x=16

4=k/16

k=64

find y when x=8

y=64/8

y=8

3 0
2 years ago
1 + 5sin^2x= 7sin^2x solve trig equation. Can you show me how to solve this trig equation?
pantera1 [17]

Answer: x = \frac{\pi}{4}\pm k\frac{\pi}{2}\,\,\,\,\,\,k=\{0,1,2,...\}

Step by step:

1 + 5\sin^2x= 7\sin^2x\\\sin^2 x\rightarrow z\\1 + 5z = 7z\\2z = 1\\z = \frac{1}{2}\implies \sin^2 x = \frac{1}{2}\\|\sin x| = \frac{1}{\sqrt{2}}\\\sin x = \pm\frac{1}{\sqrt{2}}=\pm\frac{\sqrt{2}}{2}\\\implies x = \frac{\pi}{4}\pm k\frac{\pi}{2}\,\,\,\,\,\,k=\{0,1,2,...\}

(Used a table of common angles)

8 0
3 years ago
Write the number 510 in scientific notation.
Whitepunk [10]

Answer:

500+10+0

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
if 3 buckets containing 2kg of paint has been used to paint a fence 90 m long and 80 cm high. how many buckets of 2kg of paint a
Anit [1.1K]
3 buckets covers 90m x 80cm = 3 buckets for 90x0.8 = 3 for 72

x buckets covers 200m x 120cm = x buckets for 200x1.2 = x for 240


3/72 = x/240
720 = 72x
x =10 buckets of paint to cover 200mx120cm fence
8 0
2 years ago
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