All categories

2 years ago

Solve for x -2=log(3x+5) show your steps please!

Mathematics

1 answer:

Klio2033 [76]2 years ago

4 0

Answer:

x=499/300

3x+5 = 10^-2

3x + 5 = 1/10^2

3x+5 = 1/100

3x = 1/100 -5

3x = -499/100

x= -499/100/3

499/100x3

x= - 499/300

You might be interested in

What is the area of this trapezoid?

nadya68 [22]

The area is 6cm I hope this helps

5 0

3 years ago

Un pájaro vuela en línea recta desde la copa de un árbol a otro árbol que está 2 metro más abajo, formando un ángulo de vuelo 70

olga_2 [115]

....uhh soy una penedeja..

3 0

3 years ago

the effects of the above operations. Did this affect the inequality sign? Was it still true? Why or why not?

podryga [215]

Um, what operations? You didn't list any...

8 0

3 years ago

Calibrating a scale:

lana66690 [7]

Answer:

We conclude that the calibration point is set too high.

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = 1000 grams

Sample mean, $\bar{x}$ = 1001.1 grams

Sample size, n = 50

Alpha, α = 0.05

Population standard deviation, σ = 2.8 grams

First, we design the null and the alternate hypothesis

$H_{0}: \mu = 1000\text{ grams}\\H_A: \mu > 1000\text{ grams}$

We use One-tailed(right) z test to perform this hypothesis.

Formula:

$z_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{\sigma}{\sqrt{n}} }$

Putting all the values, we have

$z_{stat} = \displaystyle\frac{ 1001.1 - 1000}{\frac{2.8}{\sqrt{50}} } = 2.778$

Now, $z_{critical} \text{ at 0.01 level of significance } = 2.326$

Since,

$z_{stat} > z_{critical}$

We reject the null hypothesis and accept the alternate hypothesis. We accept the alternate hypothesis. We conclude that the calibration point is set too high.

6 0

3 years ago

How do you do this question it is kinda difficult to understand

Dafna1 [17]

Speed = slope of the line = 20 / 0.5 = 40 km / hr

Second part will be a line with downward slope from the end of the horizontal line Slop = 20 / 1/3 (=60 km/h) So it will pass through the 65 on horizontal axis.

4 0

3 years ago