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PSYCHO15rus [73]
2 years ago
6

Tan x=3/5 nearest tenth

Mathematics
1 answer:
dolphi86 [110]2 years ago
7 0

Answer:

x\approx31\°

Step-by-step explanation:

Given expression:

\tan x=\frac{3}{5}

To solve for x to nearest tenth.

Solution:

We have:

\tan x=\frac{3}{5}

In order to solve for x we will tan inverse tan on both sides in order to isolate x.

\tan^{-1}(\tan x)=\tan^{-1}\frac{3}{5}

x=\tan^{-1}\frac{3}{5}      [ Since \tan^{-1}(\tan \theta)=\theta]

x=30.96\°

We will round to nearest tenth. So,

x\approx31\°  (Answer)

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In a large school district, it is known that 25% of all students entering kindergarten are already reading.
irina [24]

Answer:

D. 0.5256

Step-by-step explanation:

Use binomial probability:

P = nCr p^r q^(n-r)

where n is the number of trials,

r is the number of successes,

p is the probability of success,

and q is the probability of failure (1-p).

Given n = 10, p = 0.25, and q = 0.75.

If r = 0:

P = ₁₀C₀ (0.25)⁰ (0.75)¹⁰⁻⁰

P = 0.0563

If r = 1:

P = ₁₀C₁ (0.25)¹ (0.75)¹⁰⁻¹

P = 0.1877

If r = 2:

P = ₁₀C₂ (0.25)² (0.75)¹⁰⁻²

P = 0.2816

So the total probability is:

P = 0.0563 + 0.1877 + 02816

P = 0.5256

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3 years ago
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What is change in elevation from 8,500 m to 3,400?
Anarel [89]

Answer:

5,100M

Step-by-step explanation:

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3 years ago
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HELP 1x3 divided by 56 then multiply that by 9
Sloan [31]

Answer:

0.48

Step-by-step explanation:

1x3/56 then multiply it by 9

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3 years ago
(x+5)(x-5) Multiplying special case polynomials
azamat

Answer:

x^2 - 25 ✔

Step-by-step explanation:

(x+5)(x-5)

x(x-5) +5(x-5)

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Find the x-intercept of the parabola with vertex (1,-13) and y-intercept (0,-11).
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1. find equation

general solutions are:
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for P(0,-11)

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-13 = 1a + 1b -11 \\ a+b = -2

and

0 = 2a + b \\ b = -2a

solve for a and b:
a - 2a = -2 \\ a = 2 \\ b = -4

the total equation is now:

y = 2 x^{2} -4x -11

To find the x-intercept set y=0 and solve for x

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