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2 years ago

4x+ 3y =2 5x+3y=-2 step by step Elimination

Mathematics

1 answer:

irina1246 [14]2 years ago

3 0

Answer:

(-4, 6)

Step-by-step explanation:

to eliminate this equation it is best you subtract them

4x + 3y = 2

-5x - 3y = 2

that gives you -x = 4

x is -4

then plug x into an equation for y

-16 + 3y = 2

3y = 18

y = 6

(-4, 6) is the answer

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Fudgin [204]

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3 years ago

Which expression is the simplest form of 2x3 + x2 +3 (23 – 4.x)?

Daniel [21]

Answer:

Which expression is the simplest form of 2x3 + x2 +3 (23 – 4.x)?

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3 years ago

A composition of transformations maps ΔKLM to ΔK"L"M".

vlabodo [156]

The blank space in the task content should be filled with; a 270° rotation about point P.

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2 years ago

the distribution of heights of adult American men is approximately normal with mean 68 in and a standard deviation of 2.5 in wha

melamori03 [73]

Let x be a random variable representing the heights of adult American men. Since it is normally distributed and the population mean and standard deviation are known, we would apply the formula,

z = (x - mean)/Standard deviation

From the information given,

mean = 68

standard deviation = 2.5

The probability that the height of a selected adult is between 63 and 73 is expressed as

$P(68\leq x\leq73)$

For x = 63,

z = (63 - 68)/2.5 = -2

Looking at the normal distribution table, the probability corresponding to the z score is 0.02275

For x = 73,

z = (73 - 68)/2.5 = 2

Looking at the normal distribution table, the probability corresponding to the z score is 0.97725

Therefore,

$P(68\text{ }\leq x\leq73)\text{ = 0.97725 - 0.0}2275\text{ = 0}.9545$

Thus, the percentage of men are between 63 and 73 is

0.9545 * 100 = 95.45%

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1 year ago

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lutik1710 [3]

The square root of 70 millions is <span>8366.60026534</span>

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4 years ago