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Julli [10]
3 years ago
11

Urgent! Two questions! (Pre Calc) (30 points)

Mathematics
1 answer:
mina [271]3 years ago
4 0
Problem One
Sin(90 + q) = sin(90)*cos(q) + sin(q)*cos(90)
sin(90 + q) = 1 * cos(q) + sin(q)*0
sin(90 + q) = cos(q)

You can elimate anything beginning with Cos
You can also eliminate the sin function with a minus between it. 

Problem 2
Sin(x) = 1/csc(x) That makes C and D incorrect.
Correct answer has to be A. Since this is a multiple choice question you can't qualify the answer, but there are some points that exhibit questionable behavior, like 2 \pi *f*t = 0 for example. The function becomes undefined. 
You might be interested in
Is the ratio 2:5 and 5:2 equal
kolbaska11 [484]

Answer:

No

Step-by-step explanation:

The ratio of 2 : 5 would be 2/5 or .4

The ratio of 5 : 2 would be 5/2 or 2.5

These are not equal.

3 0
3 years ago
26×13 14 points here help
LenKa [72]
26 times 13 is equal to 338
7 0
2 years ago
Read 2 more answers
Could someone help on this question please 15 points
valkas [14]
You multiply then solve for y
<span>(–9.7 • 24) • (–0.25) = –9.7 • (24 • y)
</span>-232.8*(-0.25)=-232.8y
58.2=-232.8y
58.2/-232.8=-232.8y/-232.8
y= -0.25
5 0
3 years ago
Mr.Baker is making a box using all of a 48-inch strip of oak. the box will be 14 inches wide. how long will the box be?
blsea [12.9K]

The length of the box made by Mr. Baker is 10-inch

Mr. Baker has strip of 48- inch long  oak, by this strip he is making the rectangle box of width 14-inch.

<h3>What is a rectangle?</h3>

The rectangle is 4 sided geometric shapes whose opposites are equal in lengths and all angles are about 90°.

As Mr. Baker has a strip that is 48-inch long and he made a rectangle box with it.

The width of the  box = 14 inches
now the length of the box = (total length of the strip - 2* width of the box)/2
⇒ length of the box = (48 - 2*14)/2
⇒ length of the box = 10 inches

Thus the Mr. Baker made the box which is 10 inches long.

learn more about rectangles here:
brainly.com/question/15019502

#SPJ1

7 0
2 years ago
Please help it’s asking the perimeter to the nearest tenth
valkas [14]

Pythagoras theoram? use it here!

That is,

  • H² = B² + P²

H² = 15² + 4²

H² = 225 + 16

H = √241

H = 15.5

You should opt for 15.5

P.S: Best of luck for your test! ;))

5 0
3 years ago
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