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2 years ago

How do you solve this without using a calculator

Mathematics

1 answer:

Leviafan [203]2 years ago

5 0

Answer:

$C)\:\:\frac{\sqrt 2}{ 2 }$

Step-by-step explanation:

$\sin \bigg( \frac{3\pi}{4} \bigg) \\ \\ = \sin \bigg( \pi - \frac{\pi}{4} \bigg) \\ \\ = \sin \bigg(\frac{\pi}{4} \bigg) \\ \\ = \frac{1}{ \sqrt{2} }\\\\= \frac{\sqrt 2}{ 2 }$

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So I'm not good with story problems and im trying to figure this one question out. How do I format it?

sashaice [31]

Answer: $76,000

Step-by-step explanation:

State Income Tax = Salary × Income Tax Rate

3040 = Salary × 0.04

÷ 0.04 ÷0.04

76,000 = Salary

5 0

3 years ago

Can you please answer this for me

Vsevolod [243]

Answer:

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Step-by-step explanation:

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3 0

3 years ago

V varies inversely with T and V=12 when T=6. Which equation shows this relationship

hodyreva [135]

Answer:

Step-by-step explanation:

Given V varies inversely as T, then the equation relating them is

V = $\frac{k}{T}$ ← k is the constant of variation

To find k use the condition, V = 12 when T = 6

k = VT = 12 × 6 = 72

V = $\frac{72}{T}$ ← equation of variation

5 0

3 years ago

2/3x+5=1 what is the solution to the equation shown?

Fudgin [204]

Answer:

x = - 6

Step-by-step explanation:

Given

$\frac{2}{3}$ x + 5 = 1 ( subtract 5 from both sides )

$\frac{2}{3}$ x = - 4

Multiply both sides by 3 to clear the fraction

2x = - 12 ( divide both sides by 2 )

x = - 6

7 0

3 years ago

Read 2 more answers

Wilfred is feeding his goats. He gives 56% of the bag of feed to the goats in field A and the rest to the goats in field B. If t

krok68 [10]

Answer:

$Feeds = 11.76kg$

Step-by-step explanation:

Given

$Field\ A= 56\%$

$Field\ B= The\ rest$

$Bag = 21kg\ feed$

Required

Determine how much goats in field A, get.

To do this, we simply multiply the percentage feed received by goats in field A by the actual bags of feeds

i.e.

$Feeds = 56\% * 21kg$

Convert percentage to decimal

$Feeds = 0.56 * 21kg$

$Feeds = 11.76kg$

Hence, goats in field A get 11.76kg of feeds

6 0

2 years ago