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vladimir1956 [14]
3 years ago
10

Please Help ASAP

Mathematics
1 answer:
Neko [114]3 years ago
8 0
Multiply the A by -3 this will cause d to become -3d so when the two equations are added 3d and -3d will cancel off.
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The Smith family made a 12-pound turkey for dinner. If each person will eat of a pound, how many
postnew [5]
It will take 12 people to finish the turkey
3 0
3 years ago
Read 2 more answers
Given that sin theta = 1/4, 0
GaryK [48]
Answer: cos(Θ) = (√15) / 4

Explanation:

The question states:

1) sin(Θ) = 1/4

2) 0 < Θ < π / 2

3) find cos(Θ)

This is how you solve it.

1) Use the fundamental identity (in this part I use α instead of Θ, just for facility of wirting the symbols, but they mean the same for the case).

(cos \alpha )^2 + (sin \alpha )^2 =1

2) From which you can find:

(cos \alpha )^2 = 1 - (sin \alpha )^2

3) Replace sin(α) with 1/4

=> (cos \alpha )^2 = 1 - (1/4)^2 = 1 - 1/16 = 15/16

=> cos \alpha =+/- \sqrt{15/16} = +/- (\sqrt{15} )/4

4) Given that the angle is in the first quadrant, you know that cosine is positive and the final answer is:

cos(Θ) = \sqrt{15} /4.

And that is the answer.
6 0
3 years ago
The longest spin of a basketball on one finger is 255 minutes.about how many hours is that
lidiya [134]

The longest spin of a basketball on one finger is 255 minutes or 4.25 hours.

Step-by-step explanation:

the longest spin of a basketball on one finger is 255 minutes.

We need to find how many hours is that.

So, we need to convert 255 minutes into hours.

We know that,

60 minutes = 1 hour

Using Unitary method:

60 minutes = 1 hour

1 minute = 1/60 hour

255 minutes = 1/60 * 255 hour

255 minutes = 255/60 hour = 4.25 hour

255 minutes is 4.25 hour.

So, The longest spin of a basketball on one finger is 255 minutes or 4.25 hours.

Keywords: Convert Minutes to Hour

Learn more about Convert Minutes to Hour at:

  • brainly.com/question/2821386
  • brainly.com/question/3398261
  • brainly.com/question/5248528

#learnwithBrainly

4 0
3 years ago
At fairvie middle school 75 band members need to raise a total of 8250 for a trip. So far they have raised 3120. How much money
galina1969 [7]
$8250 - $3120 = $5130

$5130/75 = $68.40

Each band member must raise $68.40
8 0
2 years ago
I do not understand at all and my answer is probably completely wrong please help
tatuchka [14]
25 minutes!! you were very close, you just needed to translate the fraction to minutes!
4 0
3 years ago
Read 2 more answers
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