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3 years ago

Solve for x. Show each step of the solution. 4.5(4 − x ) + 36 = 202 − 2.5(3x + 28)

Mathematics

1 answer:

Marrrta [24]3 years ago

6 0

Answer:

sgsrgrsdg

Step-by-step explanation:

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Can 4x-2y=12x+2y=8 be solved by adding one of the original equations to the other

nydimaria [60]

Answer:

No you can't add problems together, but you can use elimnation

Step-by-step explanation:

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3 years ago

IF IT IS 13.OO IN SOUTH AFRICA, WHAT TIME IS IT IN LONDON

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3 years ago

Y=2x-4 plz help 10. points

pantera1 [17]

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3 years ago

A newspaper article states that 90% of drivers in Iowa wear their seatbelt. Suppose we are interested in estimating the proporti

konstantin123 [22]

Answer:

The sample size is $n = 3457$

Step-by-step explanation:

From the we are told that

The population proportion is p = 0.90

The margin of error is E = 0.01

From the question we are told the confidence level is 95% , hence the level of significance is

$\alpha = (100 - 95 ) \%$

=> $\alpha = 0.05$

Generally the sample size is mathematically represented as

$n =[ \frac{ Z_{\frac{\alpha }{2} } }{E} ]^2 * p(1-p)$

=> $n =[ \frac{ 1.96 }{0.01} ]^2 * 0.90(1-0.90)$

=> $n = 3457$

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3 years ago

HURRY WILL GIVE BRANLIEST!!!!!!!

Ilia_Sergeevich [38]

Answer:

√17

Step-by-step explanation:

An irrational number is a number that cannot be expressed as a ratio of two integers. Or in other words, an irrational number can't be expressed as a fraction. You really cant divide one integer by another integer to get √17, so that makes it an irrational number.

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2 years ago