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2 years ago

Solve for x: (X+5)^1/2 = (5-2x)^1/4

Mathematics

1 answer:

Greeley [361]2 years ago

7 0

Answer:

X = Negative 2 (-2)

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A train leaves at 12.13 and arrives at its destination at 13.03. If the train travelled 83 km, what was it's average speed in km

Mama L [17]

Answer:

1.7km/h

Step-by-step explanation:

speed is distance over time,the time difference is 50 min and the distance is 83,you divide 83 by 50 to give you the answer

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2 years ago

If a(x)=2x-4 and b(x) =x+2, which of the following expressions produces a quadratic function?

ZanzabumX [31]

Answer:

$(ab)(x)$

Step-by-step explanation:

The complete question in the attached figure

we have

$a(x)=2x-4\\b(x)=x+2$

we know that

(ab)(x) is equal to the product of a(x) and b(x)

$(ab)(x)=(2x-4)(x+2)$

Applying distributive property

$(ab)(x)=2x(x)+2x(2)-4(x)-4(2)$

$(ab)(x)=2x^2+4x-4x-8$

$(ab)(x)=2x^2-8$

This is a quadratic equation

The other expressions not produce a quadratic equation

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2 years ago

Below is a plot of land divided into 4 sections for a vegetable garden.

alexandr1967 [171]

Answer:

104

Step-by-step explanation:

did the test yourself(sorry for no proof)

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1 year ago

Oumou is buying tile for her kitchen. The area of Oumou’s rectangular kitchen, in square feet, can be found by using the express

SOVA2 [1]

Explanation: “The distributive property is where a number or value is distributed into a whole equation. Based on the work below as you can see I “distributed” 5 to (3m+4n) meaning I multiplied 5&3m and 5&4n, when I multiply 5&3 that give me 15, and when I multiply 5&4 that gives me 20. So when finally simplified my new equation is 15m+20n”

Make sure when you is the distributive property that you always add the variables because it will be wrong.

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2 years ago

Many older homes have electrical systems that use fuses rather than circuit breakers. A manufacturer of 40-amp fuses wants to ma

zhenek [66]

Answer:

Alternative hypothesis 1: the mean amperage at which the fuses burn out is > 40 amperes.

Alternative hypothesis 2: the mean amperage at which the fuses burn out is < 40 amperes.

Step-by-step explanation:

Recall that the null hypothesis is the fact you want to refute and is in doubt.

So, in this specific case, the null hypothesis would be that the mean amperage at which the fuses burn out is 40 amperes.

The alternative hypothesis are those that want to refute the null hypothesis, in this case there are 2:

Alternative hypothesis 1: the mean amperage at which the fuses burn out is > 40 amperes.

Alternative hypothesis 2: the mean amperage at which the fuses burn out is < 40 amperes.

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2 years ago