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goblinko [34]
3 years ago
5

Which choices are correctly written in a scientific notation ? select the four correct answers

Mathematics
1 answer:
Ganezh [65]3 years ago
7 0

Answer:

I can't answer it because their are no answer is showing

Step-by-step explanation:

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In ΔABC, m∠ACB = 90°, CD ⊥ AB and m∠ACD = 45°. Find: CD, if BC = 3 in
IRISSAK [1]
We can find m∠BCD like follows: m∠BCD=90°-45°=45<span>°
Now, m</span><span>∠DBC= 180°-(90°+45°)=45°

Remember that </span>sin \alpha = \frac{opposite leg}{hypotenuse}, so oppositeleg=(hypotenuse)(sin \alpha )

We know that hypotenuse= BC= 3in and \alpha=∠DBC)=45°, so replacing the values we get:
CD=3sin(45)=2.12

We can conclude that the segment CD is 2.12 in
4 0
3 years ago
Read 2 more answers
Pls help i would love to have an explanation of how you got the answer<br>i will mark brainliest
Neporo4naja [7]
Answer :
i what explanation can u post the picture
5 0
3 years ago
A company sells snack bags that contain a mixture of almonds and walnuts. There are 13 almonds per bag and 9 walnuts per bag. If
____ [38]
There are 13 almonds and 9 walnuts per bag so that’s 13+9=22 nuts per bag.

If there are x bags then the number of nuts is 22x.

Assuming y is the total number of nuts we get y=22x
6 0
3 years ago
Sam created a porch that was part wooden and part concrete, as shown in the figure below.If a = 21 ft, b = 28 ft, and c = 35 ft,
antiseptic1488 [7]

Answer:

1813

Step-by-step explanation:

6 0
3 years ago
What is the x-intercept<br> 1/2x - 3y = 8
Georgia [21]
So first make it into slope intercept form y=mx+b

1/2x-3y=8
subtract 1/2x from both sides
-3y=8-1/2x
multiply both sides by -1
3y=1/2x-8
divide both sides by 3
y=1/6x-8/3

the x intercept is when y=0
so set y to zero
0=1/6x-8/3
add 8/3 to both sides
8/3=1/6x
multiply both sides by 6
16=x

the x intercept is 16
5 0
3 years ago
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