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Rasek [7]
3 years ago
10

If x-9=2y and x+3=5y the what is the value of x

Mathematics
2 answers:
Ierofanga [76]3 years ago
4 0
X = the slope would be 1/2 and the Y- intercept is  - 9/2 and the second answer is x would =  -3 hop this helps 
Slav-nsk [51]3 years ago
3 0
For the first 1 X= 11 because all you need to do is add or subtract the numbers visible.
The second would be 2.
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Harlamova29_29 [7]

Answer:

54 3/4

Step-by-step explanation:

18*3=54

1/4*3=3/4

6 0
3 years ago
Solve for x and show work. Round to the tenths place.
Dafna1 [17]
This is your answer!

5 0
2 years ago
Vie
Oduvanchick [21]

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d

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the graphical representation of 5% of light and 80% of light is the same so light has no effect on seed growth

3 0
2 years ago
Solve for < x < 180degrees
Tamiku [17]

Option C: 90° is the value of x.

Explanation:

The given expression is 4+2 \sin x=14-8 \sin x for 0^{\circ} \leq x \leq 180^{\circ}

We need to solve the expression.

Thus, we have,

4+2 \sin x=14-8 \sin x

Subtracting both sides by 4, we have,

2 \sin x=10-8 \sin x

Adding both sides by 8 sin x, we get,

10 \sin x=10

Dividing both sides by 10, we have,

sin \ x=1

Taking sin^{-1} on both sides of the equation, we get,

x=sin^{-1}(1)

x=90^{\circ}

Thus, the value of x is 90°

Hence, Option C is the correct answer.

4 0
2 years ago
Random sample size of 81 are taken from an infinite population whose mean and standard deviation are 200 and 18, respectively. T
Ugo [173]

Answer:

the  mean and standard error of the mean are 200 and 2 respectively.

Step-by-step explanation:

Given that ;

the sample size n = 81

population mean μ = 200

standard deviation of the infinite population σ = 18

A population  is the whole set of values, or individuals you are interested in, from an experimental study.

The value of population characteristics such as the  Population mean (μ), standard deviation (σ) are said to be known as the population distribution.

From the given information above;

The sample size is large and hence based on the central limit theorem the mean of all the means is same as the population mean 200.

i.e

\mu = \bar \mu_x = 200

∴ The mean = 200

and the standard error of the mean can be determined via the relation:

\mathbf{standard \ error \ of \ mean = \dfrac{\sigma}{\sqrt {n}}}

\mathbf{standard \ error \ of \ mean = \dfrac{18}{\sqrt {81}}}

\mathbf{standard \ error \ of \ mean = \dfrac{18}{9}}

\mathbf{standard \ error \ of \ mean =2}

Therefore ; the  mean and standard error of the mean are 200 and 2 respectively.

6 0
2 years ago
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