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3 years ago

Help! sin^-1(tan(pi/4)

Mathematics

1 answer:

devlian [24]3 years ago

4 0

Answer:

Step-by-step explanation: the best way to get this answer is by using a scientific calculator fx-991es plus I recommend

Let's go manual for now.

Let's covert pi/4 to angle

1⁰ =π/180

1 radian =180/π

Therefore π/4 × 180/π

∅ =45⁰

Sin-¹(tan 45⁰)

Tan 45⁰= 1

Sin-¹ (1) = 90⁰. Press { sin,-¹ (1) } on your calculator

Sin-¹ (tan pi/4) = 90⁰

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Exponential and growth. Pls help me T^T

sergiy2304 [10]

Answer: r = -0.14

Step-by-step explanation:

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3 years ago

Solve the equation by completing the square.Round to the nearest hundredth if necessary. X^2–x–7=0

lesya [120]

NOTE: $\left(x-\dfrac{1}{2}\right)^2=x^2-x+\dfrac{1}{4}$

$x^2-x-7=0 \\ \\ \underbrace{x^2-x+\frac{1}{4}}_{\left(x-\frac{1}{2}\right)^2}-7\dfrac{1}{4}=0 \\ \\ \\ \left(x-\frac{1}{2}\right)^2=7\frac{1}{4}=\frac{29}{4} \qquad /\sqrt{}\\ \\ \left|x-\frac{1}{2}\right|=\dfrac{\sqrt{29}}{2} \\ \\ x_1=\dfrac{1}{2}-\dfrac{\sqrt{29}}{2} \approx -2.19 \\ \\ x_2=\dfrac{1}{2}+\dfrac{\sqrt{29}}{2} \approx 3.19$

ANSWER: c)

5 0

3 years ago

Write 600 as the product of prime factors. Give your answer in index form.

MAXImum [283]

Answer:

2^3 x 3 x 5^2

Step-by-step explanation:

600/2

300/2

150/2

75/3

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3 years ago

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Find the slope of the given point. (19,3) (20,8)

faltersainse [42]

Answer:

Step-by-step explanation:

as x goes up one y goes up 5

slope is change in y over changes in x

5/1=5

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3 years ago

Please help me with my math

Olin [163]

Answer:

x=115⁰

z=27⁰

Step-by-step explanation:

65+x=180 -> Due to same side interior being equal to 180 degrees

x= 115

x = 3z + 34 -> opposite interior being equal

115 = 3z + 34

81 = 3z

divide by 3 on both sides

z=27

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2 years ago

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