2 years ago

Can someone please answer this with solution please , it's scientific notation.. it's my homework since December 16

Mathematics

1 answer:

mash [69]2 years ago

5 0

Answer:

1.3x10^-6

trust me it's right

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Factorise fully<br>40-10g <br><br>Please do quick, will mark brainiest!!

bekas [8.4K]

Answer:

Step-by-step explanation:

$40 - 10g$

Rewrite 40 as 4 × 10

$4 \times 10 - 10g$

Factor out 10

$10(4 - g)$

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3 years ago

How many moles are in a sample of 3.01 x 10^18 formula units of sodium hydroxide (NaOH)?

Lunna [17]

Step-by-step explanation:

We can use the formula to find the number of moles. As ,

$:\implies$ n = No. of particles/ N_A

$:\implies$ n = 3.01× 10¹⁸/6.022 × 10²³

$:\implies$ n = 1/2 / 10⁵

<h3>Hence the number of particles is 1/2 / 10⁵ </h3>

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2 years ago

caleb and emily are standing 100 yards from each other. caleb looks up at a 45 degree angle to see a hot air balloon. Emily look

Sunny_sXe [5.5K]

Check the picture below.

thus then

$\bf \begin{cases}
y=100-a\\
y=a\sqrt{3}
\end{cases}\implies 100-a=a\sqrt{3}\implies 100=a+a\sqrt{3}
\\\\\\
100=a(1+\sqrt{3})\implies \boxed{\cfrac{100}{1+\sqrt{3}}=a}
\\\\\\
\textit{what is the altitude \underline{y} then?}\qquad y=100-a
\\\\\\
y=100-\cfrac{100}{1+\sqrt{3}}\implies y\approx 63.39745962156~yards$

8 0

3 years ago

Read 2 more answers

Find the two correct values of x in the equation 3x² = y when y = 75.

valentina_108 [34]

Answer:

5 and -5

Step-by-step explanation:

3x² = 75

x² = 75/3

x² = √25

x = 5 and - 5

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2 years ago

Chef Rita is cooking for a Sunday brunch. She knows that 222222 pancakes can feed 888 people. She is wondering how many people (

likoan [24]

Answer:

she can feed 2,220 people with 555555 pancakes.

Step-by-step explanation:

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2 years ago