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3 years ago

Need answer today please

Mathematics

1 answer:

tiny-mole [99]3 years ago

6 0

Answer:

Step-by-step explanation:

304

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-50 = x/3+20 I NEEDDD HELPPPPPPOO

ruslelena [56]

Given:

The equation is

$-50=\dfrac{x}{3}+20$

To find:

The solution of the given equation.

Solution:

We have,

$-50=\dfrac{x}{3}+20$

Subtracting both sides by 20, we get

$-50-20=\dfrac{x}{3}+20-20$

$-70=\dfrac{x}{3}$

Multiply both sides by 3.

$-210=x$

Therefore, the solution of the given equation is $x=-210$ .

5 0

3 years ago

Rational number on a number line

solong [7]

Positive rational numbers are always represented on the right side of the zero on the number line. While negative rational numbers are always represented on the left side of zero on the number line.

6 0

2 years ago

An automatic machine is set to fill bags of dog food with exactly 25 pounds on average with a standard deviation of 0.5 pounds.

Rasek [7]

Answer:

Step-by-step explanation:

Given that an automatic machine is set to fill bags of dog food with exactly 25 pounds on average with a standard deviation of 0.5 pounds.

Sample size = n =100

x bar = 24.85 pounds

Sample std error = $\frac{\sigma}{\sqrt{n} } =0.05$

Hypotheses:

$H_0: x bar = 25\\H_a: x bar \neq 25$

(Two tailed test at 5% level)

Mean difference =0.15

Test statistic = mean diff/se = 3

Since population std dev is known z test can be used

p value =0.0000

Since p <0.05 we find that the bag does not contain exactly 25 pounds.

5 0

3 years ago

Find the value of x to the nearest degree.

Vinvika [58]

Answer: 77°

<u>Step-by-step explanation:</u>

In relation to ∠X, 3 is the adjacent side and 13 is the opposite side.

$tan\ \theta=\dfrac{opposite}{adjacent}\\\\tan\ x=\dfrac{13}{3}\\\\x = tan^{-1}\bigg(\dfrac{13}{3}\bigg)\\\\.\ =77$

3 0

3 years ago

Angles that are greater than 0 degrees and less than 90 degrees are classified as acute angles.

Marizza181 [45]

Yes that statement is true.

6 0

3 years ago

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