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viktelen [127]
3 years ago
13

What answer represents this numbet in scientific notation 0.00000916

Mathematics
1 answer:
user100 [1]3 years ago
6 0
The answer is 9.16 *10^-6.
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Find, to the nearest degree, the angle of elevation of the sun when a person 170 cm tall casts of shadow 220 cm long.
RideAnS [48]

Answer:

Θ = 52°

Step-by-step explanation:

Once you've set up the triangle, you can see that the adjacent side is 170 cm and the opposite side is 220 cm.

tanΘ = \frac{220}{170}

Θ = tan-1 (220/170)

Θ = 52°

7 0
4 years ago
Can someone answer this for me please
lesantik [10]

Answer:

9 fruit tarts.

Step-by-step explanation:

What the question is essentially asking is: "If we split 6 whole cups into thirds of a cup, how many groups of 2 can we make out of those thirds?" Well, we have 3 thirds in every whole, so 6 wholes gives us 6 x 3 = 18 thirds. We can make <em>9 groups of 2</em> from 18, so our answer is <em>9 fruit tarts</em>.

6 0
3 years ago
a pole that is 3.4 m tall casts a shadow that is 1.74 m long. at the same time a nearby building casts a shadow that is 41.5m lo
Mila [183]
Since the answer is infinite decimal, i will round the answer to the nearest tenth, which is 81.3. i used proportion to solve this question.
4 0
4 years ago
Find f (-4) if f(x) = 3x - 10
Diano4ka-milaya [45]

Answer:

  -22

Step-by-step explanation:

Put -4 where x is and do the arithmetic.

  f(-4) = 3(-4) -10 = -12 -10

  f(-4) = -22

3 0
3 years ago
2x - 3y = 16
aivan3 [116]

Answer:

B) (5,-2)

Step-by-step explanation:

we have the equations:

2x - 3y = 16\\3x + 2y = 11

We multiply the first equation by 3:

3(2x-3y=16)\\6x-9y=48

i will call this equation 1.

and we multiply the second equation by 2:

2(3x+2y=11)\\6x+4y=22

i will call this equation 2.

Now we subtract equation 2 from equation 1:

6x-9y=48\\-(6x+4y=22)

this is:

6x-9y=48\\-6x-4y=-22

which gives:

6x-9y-6x-4y=48-22\\-13y=26\\y=-2

and now that we know that y=-2 we substitute this value in any of the original equations to find x

using 2x - 3y = 16

we have:

2x - 3(-2) = 16\\2x+6=16\\2x=16-6\\2x=10\\x=5

so x=5

the answer is (5, -2) which is option B.

5 0
4 years ago
Read 2 more answers
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