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salantis [7]
3 years ago
9

Plzzzzzzzzzzzzz helpppppppppppppp

Mathematics
2 answers:
Ierofanga [76]3 years ago
6 0
Heyyyoooooooooo I got youuuuuu giveeee meeee a second pleaseeeeeee
NikAS [45]3 years ago
6 0

Answer:

<h3>Question 25:</h3>

6

<h3>Question 19:</h3>

16

Step-by-step explanation:

<h3>Question 25:</h3>

\frac{x}{12}  +  \frac{y}{3}  = 2

\frac{y}{3 }  = 2 -  \frac{x}{12}

y = 3( 2 - \frac{x}{12} )

y = 6 -  \frac{x}{4}

y =  -  \frac{x}{4}  + 6

<h3>Question 19:</h3>

{x}^{2}  - 8x + c

{x}^{2}  + c - 18

To find the c value ,

c = ( \frac{b}{2} {)}^{2}

divide the coefficient of x by 2 and square the result.

( - 1 \times 4 {)}^{2}

( - 4 {)}^{2}

16

<h3>Hope it is helpful....</h3>
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What is the area of a sector with a central angle of 108 degrees and a diameter of 21.2 cm?
Rasek [7]

Answer:

105.84\ cm^2

Step-by-step explanation:

step 1

Find the area of the circle

The area of the circle is

A=\pi r^{2}

we have

r=21.2/2=10.6\ cm ----> the radius is half the diameter

substitute

A=\pi (10.6)^{2}

A=112.36\pi\ cm^2

step 2

Find the area of a sector

Remember that

The area of the circle subtends a central angle of 360 degrees

so

using proportion

Find out the area of a sector with a central angle of 108 degrees

\frac{112.36\pi}{360^o}=\frac{x}{108^o}\\\\x=112.36\pi(108)/360\\\\x=33.708\pi\ cm^2

assume

\pi=3.14

substitute

33.708(3.14)=105.84\ cm^2

7 0
3 years ago
Pls, HELP IF U DONT KNOW THE ANSWER THEN DONT RESPOND, I WILL GIVE BRAINLESS IF CORRECT.
LenKa [72]

Answer:

The answer is 0.23

Step-by-step explanation:

Hope this helps.

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4 0
3 years ago
Read 2 more answers
-p(51+z)=dz+84 <br>how do i solve for z​
deff fn [24]

Answer:

Z=53p/d-84/d

Step-by-step explanation:

hope it help's

6 0
3 years ago
Find a numerical value if one trigonometric function of x if tan2x-sin2x/sin2x=5
seropon [69]

Answer:

The values of x that satisfy the given equation are:

x1 = 1.183 + nπ

x2 = -1.183 + nπ

Step-by-step explanation:

Given tan²x - sin²x/sin²x = 5

Simplifying this, we have

tan²x - 1 = 5

Adding 1 to both sides, we have

tan²x = 6

Because tan²x = (tanx)², we can write as

(tanx)² = 6

Taking square roots of both sides, we have.

tanx = ±√6

x = arctan(±√6) + nπ

≈ 1.183 + nπ or -1.183 + nπ

4 0
3 years ago
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That equation is unable to be graphed because a ^ cant be near -<span />
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