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4 years ago

In solving for systems of equations, by graphing, im sorry but I really need help, with one question, y= 2x + 3

Mathematics

2 answers:

elena-14-01-66 [18.8K]4 years ago

8 0

Is there another equation? A system of equations means more than one equation and you only provided one. Thanks

OLga [1]4 years ago

6 0

2x=3-y so collect the likes term which is xy= 3\2

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Please help answer the math question below

Ksju [112]

Answer:

Step-by-step explanation:

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3 years ago

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Help plz I’ll give brainliest and I’m struggling with this problem

hodyreva [135]

The line is starting from right side and goes thorough left .

Means

Its starts from 1st Quadrant and goes to 3rd Quadrant.(+ve to -ve)
Y is infinite

Hence

The solution is

$\\ \sf\longmapsto (0,\infty]$

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3 years ago

A triangular plate with base 2 m and height 3 m is submerged vertically in water so that the tip is even with the surface. Expre

g100num [7]

Answer:

Hydrostatic Force = 35.28KN

Step-by-step explanation:

To solve this question, let's consider integrating the hydrostatic force from the top of the triangle to the bottom.

Formula for a thin horizontal slice of the triangle the force is;

δF=ρgxwδx

Where w is width of triangle; ρ is density of water and g is acceleration due to gravity

At depth x, the width of the triangle is w=2/3x.

Thus, F = (3,0)∫)ρgxwδx

=(2/3)ρg[(3,0)∫)x²δx]

= integrating, we have;

F = (2/3)ρg[(3³/3) - (0³/3)]

F = (2/5)ρg [27/3] = (2/5)(1000)(9.8)(9) = 35280 N = 35.28 KN

6 0

4 years ago

Find two numbers in-between 0.004 and 0.005

andriy [413]

The 2 numbers can be: 0.0041 and 0.0045

7 0

3 years ago

A food safety guideline is that the mercury in fish should be below 1 part per million (ppm). Listed below are the amounts of m

nignag [31]

Answer:

Confidence Interval: (0.44,1.00)

Step-by-step explanation:

We are given the following data set:

0.60, 0.74, 0.09, 0.89, 1.31, 0.51, 0.94

Formula:

$\text{Standard Deviation} = \sqrt{\displaystyle\frac{\sum (x_i -\bar{x})^2}{n-1}}$

where $x_i$ are data points, $\bar{x}$ is the mean and n is the number of observations.

$Mean = \displaystyle\frac{\text{Sum of all observations}}{\text{Total number of observation}}$

$Mean =\displaystyle\frac{:5.08}{7} = 0.725$

Sum of squares of differences = 0.8809

$S.D = \sqrt{\frac{0.8809}{6}} = 0.383$

90% Confidence interval:

$\bar{x} \pm t_{critical}\displaystyle\frac{s}{\sqrt{n}}$

Putting the values, we get,

$t_{critical}\text{ at degree of freedom 6 and}~\alpha_{0.10} = \pm 1.943$

$0.725 \pm 1.943(\frac{0.383}{\sqrt{7}} ) =0.725 \pm 0.2812 = (0.44,1.00)$

No, it does not appear that there is too much mercury in tuna sushi.

5 0

4 years ago