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liraira [26]
3 years ago
7

NEED HELP WILL MARK BRAINLIEST

Mathematics
1 answer:
Furkat [3]3 years ago
7 0

Answer:

15

Since 9 questions is 60% of the exam, you must find 100%. You could find the value of 10% by dividing 60 by 6. You do the same to 9, divide by 6 to get 1.5. Now that you have the value of 10% you can multiply 10% by 10 to get 100. You also do the same to 1.5. Your answer should be 15, if not check your work again.

Step-by-step explanation:

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Prove that cos3A=sin2A​
melamori03 [73]

Answer:

Step-by-step explanation:

Cos3A= Sin2A ........ (i)\\\\Cos3A= Cos (90-2A)\\\\3A= 90-2A\\\\5A= 90\\\\A= 18\\\\

<em>Now,</em>

<em>Putting the value of A to find the value,</em>

<em />From (i)\\Cos(3x18) = Sin (2x18)\\Cos54= Sin36\\0.5877= 0.5877 \\LHS=RHSProved .

4 0
2 years ago
Read 2 more answers
4y-5x=-8
Dovator [93]

Answer:

4y−5x=−8

Step 1: Add -4y to both sides.

−5x+4y+−4y=−8+−4y

−5x=−4y−8

Step 2: Divide both sides by -5.

−5x

−5

=

−4y−8

−5

x=

4

5

y+

8

5

Answer:

x=

4

5

y+

8

5

Step-by-step explanation:

3 0
3 years ago
What is the sum of the arithmetic sequence 6, 14, 22,<br> if there are 26 terms
Arisa [49]
Sum of nth term of arithmetic sequence is given by Sn = n/2[2a + (n - 1)d]
Here, a = 6, n = 26 and d = 14 - 6 = 8
S26 = 26/2[2(6) + (26 - 1)8] = 13[12 + 25(8)] = 2,756
3 0
4 years ago
Use the net to find the lateral area of the prism.
salantis [7]
The lateral area is represented in the diagram by a rectangle 11 cm wide and
(8 + 15 + 17) cm = 40 cm long.

The lateral area is 
   (11 cm)*(40 cm) = 440 cm²
6 0
3 years ago
Can I please have help on 3, 4 will mark brainiest thank you.
777dan777 [17]

Answer:

4) Alternate angles

Step-by-step explanation:

Alternate angles are on the opposite corners of the line of the angle, and 10 and 14 are on opposite corners, so that makes them alternate angles. I hope this helped you!

7 0
3 years ago
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