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3 years ago

Pls help I Don't wanna Fail

Mathematics

1 answer:

Finger [1]3 years ago

3 0

9000 Step by Step Explanation

I just used a calaculator

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Choose all of the zeros of the function f(x) = 2x² + 5x – 3.

Umnica [9.8K]

Answer:

-3. and -0.5

Step-by-step explanation:

i hope that helps

6 0

3 years ago

Trigonometry Trigonometric Functions Given: Cos θ = (3/5), Find: Csc θ

nasty-shy [4]

The value of $\csc \theta$ is $\frac{5}{4}$

Explanation:

Given that the function $cos \ \theta$ is $cos \ \theta= \frac{3}{5}$

We need to determine the value of $\csc \theta$

The value of Opposite side of the triangle:

The formula for $cos \ \theta$ is given by

$cos \ \theta= \frac{adj}{hyp}=\frac{3}{5}$

The value of opposite side can be determined using the formula,

$opp=\sqrt{hyp^2-adj^2$

$opp=\sqrt{5^2-3^2}$

$opp=\sqrt{25-9}$

$opp=\sqrt{16}=4$

Thus, the value of opposite side is 4

The value of $\csc \theta$ :

The formula for $\csc \theta$ is given by

$csc \ \theta=\frac{1}{sin \ \theta}$

First, we shall determine the value of $sin \ \theta$

The formula for $sin \ \theta$ is given by

$sin \ \theta= \frac{opp}{hyp}$

Substituting the values, we have,

$sin \ \theta= \frac{4}{5}$

Thus, the value of $sin \ \theta$ is $\frac{4}{5}$

Substituting the values in the formula for $\csc \theta$ , we have,

$csc \ \theta=\frac{1}{\frac{4}{5}}$

$csc\ \theta= \frac{5}{4}$

Hence, the value of $\csc \theta$ is $\frac{5}{4}$

5 0

3 years ago

E(t) models the daily amount of energy (in kilojoules, kJ) that a solar panel in Pago Pago generates, t days

jeka57 [31]

Answer:

E(t) models the daily amount of energy (in kilojoules, kJ) that a solar panel in Pago Pago generates, t days

after the autumn equinox. Here, t is entered in radians.

270

E(t) = 624 sin

t + 8736

365

What is the first day after the autumn equinox that the solar panel generates 8400 kJ?

Round your final answer to the nearest whole day.

6 0

3 years ago

Linda gets paid $80 per day. Unfortunately Linda went home sick after working 1/3 of the day on Friday. At her company they don’

Ludmilka [50]

Answer:

26.67

Step-by-step explanation:

Take the total amount per day and multiply by the fraction of the day that she worked

80 *1/3 =26.66666

Rounding to the nearest cent

26.67

7 0

3 years ago

10 X 8 The Pythagorean theorem

kifflom [539]

Answer:

Step-by-step explanation:

What is the question?

10 x 8 = 80

Or, if Pythagorean’s theorem is included,

The square root of 100 -64 = square root of 36 = 6

3 0

4 years ago