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3 years ago

If two angles are complementary and one angle is 48° what is the other angle

Mathematics

1 answer:

WINSTONCH [101]3 years ago

4 0

Answer:

Step-by-step explanation:

When two angles add to 90°

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Write the equation 2x 2 - 4x + 6 = 1 in standard form and then choose the value of "c."

Karolina [17]

It is 5
2x2 -4x +6-1= 0 is the standard form

6 0

3 years ago

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number from 1 to 99 is written on a card making a pack of 99 cards. What is the probability of randomly selecting a card where t

andriy [413]

Answer:

(19/99) = 0.192

Step-by-step explanation:

Numbers 1 to 99, that is 99 numbers (obtained through the equation for the nth term of an AP)

L = a + (n-1) d

L = nth term = 99

a = first term = 1

n = number of terms = ?

d = common difference = 1

99 = 1 + (n-1)1

n = 99

Sample space = 99

The numbers that include at least, a 1 are

1, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 21, 31, 41, 51, 61, 71, 81, 91

19 numbers.

Probability of randomly selecting a card where the number contains at least one digit 1 from 1 to 99 = (19/99) = 0.192

Hope this Helps!!!

3 0

4 years ago

Match each transformation of Rx) with its description.

ryzh [129]

Answer:

Step-by-step explanation:

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3 years ago

A cosine function is a reflection of its parent function over the x-axis. The amplitude of the function is 11, the vertical shif

omeli [17]

We have been given that a cosine function is a reflection of its parent function over the x-axis. The amplitude of the function is 11, the vertical shift is 9 units down, and the period of the function is $\frac{7\pi}{12}$ . The graph of the function does not show a phase shift. We are asked to write the equation of our function.

We know that general form a cosine function is $y=A\cos(b(x-c))-d$ , where,

A = Amplitude,

$\frac{2\pi}{b}$ = Period,

c = Horizontal shift,

d = Vertical shift.

The equation of parent cosine function is $y=\cos(x)$ . Since function is reflected about x-axis, so our function will be $y=-\cos(x)$ .

Let us find the value of b.

$\frac{2\pi}{b}=\frac{7\pi}{12}$

$7\pi\cdot b=24\pi$

$\frac{7\pi\cdot b}{7\pi}=\frac{24\pi}{7\pi}$

$b=\frac{24}{7}$

Upon substituting our given values in general cosine function, we will get:

$f(x)=-11\cos(\frac{24}{7}x)-9$

Therefore, our required function would be $f(x)=-11\cos(\frac{24}{7}x)-9$ .

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3 years ago

I’ve tried 3 takes and just can’t seem to get it

Rzqust [24]

1/3 and 2/5 --> what we need is a least common denominator
(1/3)x5 (2/5)x3
5/15 and 6/15
so he needs to paint his room two more times which will make the 5/15 become 15/15
you start with 5/15 and you need to add "5/15" two more times which will make 15/15
so you do that to 6/15
6/15+6/15+6/15=18/15=1 3/15 or 1 1/5 cans of paint ANSWER

3 0

4 years ago

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