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1 year ago

Which set of angles are complementary in this diagram? Please help <3

Mathematics

1 answer:

SashulF [63]1 year ago

6 0

9514 1404 393

Answer:

Step-by-step explanation:

Complementary angles total 90°. Here, 90° angle BCE is divided by ray CF into two complementary angles. They necessarily have a total of 90°.

∠ECF and ∠BCF

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Simplify the expression -5+i/2i Can someone please explain this to me!

Aleks04 [339]

Think of it as -5+1i/2i, since 1i=i. From there, the i's could cancel out since dividing a number by itself would just equal 1. It would then be -5+1/2 which would be simplified to -4 1/2. No need to worry about those i's at all!

5 0

2 years ago

A teenager’s heart pumps an average of 7200 L of blood every 24 hours. What is the rate of change of volume of blood?

love history [14]

Answer:

300L per hour

Step-by-step explanation:

The rate of change of volume of blood pumped by the teenager's heart expresses the volume of blood pumped with respect to hour.

Rate of change of volume of blood = $\frac{volume of blood}{time}$

= $\frac{7200L}{24}$

= 300L/hour

The rate of change of volume of blood by the teenager's heart is 300 litres per hour. This implies that his/ her heart pumps 300 litres of blood every hour.

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2 years ago

M is the midpoint of C(1,7) and D(-8,-3). Find the coordinates of M.

Alex73 [517]

Answer:

hello I hope the image helps

5 0

5 months ago

Please help worth 20 points will mark brainliest

ddd [48]

Answer:

P(t)= 100t + 150

Step-by-step explanation:

If the price for 6 hours of studio time is 600 dollars, that means every hour the studio is used it costs 100 dollars. Since the fixed fee is 150 dollars, that is added to the cost of how many hours the studio is used.

I hope this helped you. If it did Brainilest is appreciated.

3 0

2 years ago

What is i^34? A. -i B. 1 C. -1 D. i

babymother [125]

Answer: C -1

calculate it from i and imaginary numbers

4 0

2 years ago