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2 years ago

If x is 5, then 6x= __.

Mathematics

2 answers:

Vitek1552 [10]2 years ago

7 0

If we know that X = 5, we can figure out what 6x equals.

When the X appears next to the 6, this is telling us that we need to multiply 6 by the value of X. If X = 5, then our equation will read 6x = 30.

6 times 5 = 30

Therefore, 6x is equal to 30.

Misha Larkins [42]2 years ago

5 0

Answer:

Step-by-step explanation:

Plug in x:

6(5)=30

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Which of the following is the standard form of 36 / 24

RSB [31]

Answer:

15 x 10^-1

Step-by-step explanation:

36÷24=1.5

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2 years ago

(True or false)car traveling 20 meters per hour east of the mountain pass is example of velocity

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I believe the answer is True

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2 years ago

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Determine the intercepts of the line.

natulia [17]

Answer:

Find in Step by Step

Step-by-step explanation:

x-intercept = 26/-4 = 13/-2 = -6.50000

y-intercept = 26/1 = 26.00000

Slope = 8.000/2.000 = 4.000

Equation at the end of step 1 :

(y - 6) - 4 • (x + 5) = 0

Step 2 :

Equation at the end of step 2 :

y - 4x - 26 = 0

Step 3 :

Equation of a Straight Line

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5 0

2 years ago

The number of hours worked per year per person in a state is normally distributed with a standard deviation of 39. A sample of 1

evablogger [386]

Answer:

The 98% confidence interval for the population mean number of hours worked per year per person is (2146, 2193).

Step-by-step explanation:

The question is incomplete.

The number of hours registered in the sample are:

2051 2061 2162 2167 2169 2171

2180 2183 2186 2195 2196 2198

2205 2210 2211

The sample mean can be calculated as:

$M=\dfrac{1}{n}\sum_{i=1}^n\,x_i\\\\\\M=\dfrac{1}{15}(2051+2061+2162+2167+2169+2171+2180+2183+2186+2195+2196+2198+2205+2210+2211)\\\\\\M=\dfrac{32545}{15}\\\\\\M=2169.67\\\\\\$

We have to calculate a 98% confidence interval for the mean.

The population standard deviation is know and is σ=39.

The sample mean is M=2169.67.

The sample size is N=15.

As σ is known, the standard error of the mean (σM) is calculated as:

$\sigma_M=\dfrac{\sigma}{\sqrt{N}}=\dfrac{39}{\sqrt{15}}=\dfrac{39}{3.873}=10.07$

The z-value for a 98% confidence interval is z=2.326.

The margin of error (MOE) can be calculated as:

$MOE=z\cdot \sigma_M=2.326 \cdot 10.07=23.43$

Then, the lower and upper bounds of the confidence interval are:

$LL=M-t \cdot s_M = 2169.67-23.43=2146\\\\UL=M+t \cdot s_M = 2169.67+23.43=2193$

The 98% confidence interval for the population mean is (2146, 2193).

3 0

3 years ago

Please help!<br> 5x^2 - 3x - 2 = 0<br> Solve using the zero-factor property.

Alex

Answer:

x = -2/5

x = 1

Step-by-step explanation:

5x² - 3x - 2 = 0

(5x + 2)(x - 1) = 0

⇒ 5x + 2 = 0

⇒ 5x = -2

⇒ x = -2/5

⇒ x - 1 = 0

⇒ x = 1

7 0

2 years ago