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nikdorinn [45]
3 years ago
12

What is formula of sec(A+B)​

Mathematics
1 answer:
Natasha2012 [34]3 years ago
8 0

Answer:

(cos a cos b - sin a sin b)

Step-by-step explanation:

It's easy

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Simplity:<br> 17 (-12 + 3)
Schach [20]

Answer:

\Huge\boxed{\mathsf{-153}}}

Step-by-step explanation:

\Large\boxed{\mathsf{LESSON: ORDER \quad OF \quad OPERATIONS}}}

\Large\boxed{\mathsf{SUBJECT: MATH}}}

To use the order of operations stands for (Parenthesis, Exponents, Multiply, Divide, Add, and Subtract) from left to right.

First, do parenthesis.

17(-12+3)

(-12+3)=-9

17(-9)

Then, multiply.

17*9=153

17(-9)=-153

-153

\Large\boxed{\mathsf{\Rightarrow -153}}

The correct answer is -153.

3 0
3 years ago
19.<br>How long is the pencil shown below?<br>3.5<br>1 2<br>3<br>4<br>5 cm​
arlik [135]
Answer:

5cm

- The pencil is 5cm long.
6 0
3 years ago
Find the surface area of the cylinder. Use a ~ 3.14 20 m​
lesantik [10]

Answer:

1444.4 m2

Step-by-step explanation:

Surface Area = 2 * 3.14 * (R*R + R*L) = 2 * 3.14 * (10*10+10*13) = 1444.4 m2

Note .. You can Derive this  

"Surface Area = 2 * 3.14 * (R*R + R*L)"

Using Calculus by differentiating its Volume

V = 3.14 * R * R * L

6 0
2 years ago
Lila bought a green poster that measured 36 inches by 24 inches and a red poster that measured 12 inches by 18 inches. If the po
kramer
36 × 24 = 864 square inches. 864 sq in × $0.05 = $43.20. The green poster cost $43.20

12 × 18 = 216 square inches. 216 sq in × $0.05 = $10.80. The red poster cost $10.80

Please mark brainliest
5 0
2 years ago
On Tuesday, a radio store reduces all its Monday prices by 20%. On Wednesday, by what percent
Zepler [3.9K]

Answer:

Sbehevsb

Step-by-step explanation:

4 0
3 years ago
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