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seraphim [82]
3 years ago
15

Can someone help me please :)

Mathematics
2 answers:
NemiM [27]3 years ago
7 0
I think it's D. That question is a bit weird so I can't explain it to you but my educated guess would be D. I'm sorry. 
larisa86 [58]3 years ago
7 0
2x - (1.8x + 2.7)
= 2x - 1.8x - 2.7
= 0.2x - 2.7
The answer is D
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denis-greek [22]

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2. 3+5

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3. 2x*8

6 0
3 years ago
Hey can you keep me please I need this ASAP
natka813 [3]

Hey!

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Question #1:

Least to greatest: 1.6 x 10^-2, 16%, 0.2, 3/5, 6^-1, √6

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7 0
3 years ago
What is 7/20 in decimals
FromTheMoon [43]

Answer:

0.35 :)

Step-by-step explanation:

6 0
4 years ago
Read 2 more answers
wite the answer to the problem below, using the correct number of significant figures 18.432+ 5.55 + 19.3
Marysya12 [62]
18.432 + 5.55 + 19.3 
We can notice that the last number in the process of addition is 19.3 | with 1 decimal place value / 3 significant figures |
It is better to change all values to 1 decimal place value / 3 significant figures
18.432 → 18.4
5.55 → 5.6 ( 5 rounds up )
19.3 → 19.3
Let us add:
18.4 + 5.6 + 19.3  = 43.3
If you add the original numbers, you will get
18.432 + 5.55 + 19.3 = 43.282
43.282 ≈ 43.3
8 0
3 years ago
Answer ASAP 84.9 66.2 38.2 33.8
tankabanditka [31]

Step-by-step explanation:

You need to use trigonometric stuff here. Since you're given the hypotenuse and an angle you can plug that right into an equation.

Recall that sin is opposite over hypotenuse and cos is adjacent over hypotenuse.

sin(\theta)=\frac{o}{h} \\sin(30)=\frac{x}{14} \\0.5=\frac{x}{14} \\x=7

Now that you know the opposite side (DC) you can use tan, too, but I'm going to use cos.

cos(\theta)=\frac{a}{14} \\cos(30)=\frac{x}{14} \\\frac{\sqrt{3} }{2} =\frac{x}{14} \\x=7\sqrt{3}

This is the adjacent side (BC). I put it in its exact value, but in decimal form it's ≈12.124.

Now you can do the perimeter:

2l+2w\\2(12.124)+2(7)\\24.248+14\\38.25

Your answer is the 38.2

6 0
3 years ago
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