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3 years ago

Is 7/10 smaller than 1/2

Mathematics

1 answer:

Bingel [31]3 years ago

4 0

No, if you get common denominators 1/2 = 5/10
7/10 is bigger than 5/10

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Prove the identity cos(x-y)-cos(x+y)=2sinx siny

True [87]

Answer:

see explanation

Step-by-step explanation:

Using the Addition/ Subtraction formulae for cosine

Consider the left side

cos(x - y) - cos(x + y)

= cosxcosy + sinxsiny - (cosxcosy - sinxsiny) ← distribute

= cosxcosy + sinxsiny - cosxcosy + sinxsiny ← collect like terms

= 2sinxsiny = right side ⇒ proven

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4 years ago

I need help on my home work

allochka39001 [22]

Answer:

Step-by-step explanation:

change in graph=(y2-y1)/(x2-x1)=(0.25-2)/(4.5-2.5)

=-1.75/2=-0.875

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3 years ago

1. List all the possible rational solutions for each equation.

12345 [234]

Answer:

x=−7.974656,0.038604

Step-by-step explanation:

4x4+13x3−124x2+212x−8=0

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3 years ago

Can y’all help me what do I do here please I’ll give you brainliest

exis [7]

Answer:

1, 2, -3, 51

Step-by-step explanation:

0 ÷ 2 = 0

0 + 1 = 1

2 ÷ 2 = 1

1 + 1 = 2

-8 ÷ 2 = -4

-4 + 1 = -3

100 ÷ 2 = 50

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4 years ago

Drako found an emerald in a cave at a depth between -1/2 and -1 2/3 meters which number could represent the depth which the emer

oksian1 [2.3K]

Answer:

$-\frac{3}{4}$ meters

Step-by-step explanation:

From the answer choices, we basically need to find which of them is between $-\frac{1}{2}$ and $-1\frac{2}{3}$

Converting all of them to decimals would make it really easier:

So we need to find number between -0.5 and -1.67

Answer choice A is -2.33

Answer choice B is -0.75

Answer choice C is -0.25

Answer chioce D is -1.83

So which number, from the choices, is between -0.5 & -1.67?

Clearly, it is -0.75, or, $-\frac{3}{4}$ meters

5 0

4 years ago

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