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Lady_Fox [76]
3 years ago
10

Which statement describes the greatest absolute change?

Mathematics
1 answer:
Sergio [31]3 years ago
3 0

Answer: C

a) 61-29 = 32

b) 32-3=29

c)27+8= 35

d) 170-139 =31

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Write an inequality that represents the following scenario: a number divided by 10 increased by 8 is greater than 15.
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\frac{x}{10} + 8 > 15
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Let sin A= -3/5 with 270°&lt; A&lt; 360°. Find the following.<br> sin A/2
GREYUIT [131]

Answer:

1/sqrt10

Step-by-step explanation:

1) Find out cosA using formula (cosA)^2+(sinA)^2=1

The module of cosA= sqrt (1- (-3/5)^2)= sqrt 16/25=4/5

So cosA=-4/5 or cosA=4/5.

Due to the condition 270degrees< A<360 degrees, 0<cosA<1 that's why cosA=4/5.

2) Find sinA/2 using a formula cosA= 1-2sinA/2*sinA/2 where cosA=4/5.

(sinA/2)^2= 0.1

sinA= sqrt 0.1= 1/ sqrt10 or sinA= - sqrt 0.1= -1/sqrt10

But 270°< A< 360°, then 270/2°<A/2<360/2°

135°<A/2<180°, so sinA/2 must be positive and the only correct answer is

sin A/2= 1/sqrt10

6 0
2 years ago
Can someone help me solve for a ?
Liono4ka [1.6K]

Answer:

a=6 or -6

Step-by-step explanation:

Solve the determinant to get a²-36=0

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4 0
3 years ago
How are the radius and diameter of a circle related?
antiseptic1488 [7]
The radius is always half the diameter. So, your answer is A.
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Read 2 more answers
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