3 years ago

What two numbers multiply to 24 and add to -12

1 answer:

3 0

Answer: There is no way to get the answer that way, try using another form besides the X where you put the two numbers on either side to get the two numbers that go into (x+/-"?")(x+/-"?")

Step-by-step explanation:

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What is the measure of <DCF

Shtirlitz [24]

129 degrees you just add DCE and ECF together

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3 years ago

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A number times 7 is at least the number plus 6.6.<br> Write the inequality.

Semmy [17]

Answer:

7x ≥ x + 6

A number signifies <em>x</em>.

Replace "a number" with x and then write out the inequality.

4 0

3 years ago

if 1/5 of a ton of concrete covers 5/8 of the wall, how many tons of concrete are required to cover the entire wall?

kvasek [131]

Answer:

2/5

Step-by-step explanation:

since 1/5 covers 5/8, 2/5 would cover 10/8 which is the entire wall and a more

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3 years ago

El producto de 4 y un numero, aumentado en 17 es 221. Cual es el numero?

Helga [31]

La equacion seria 4n+17=221
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4 years ago

The scores of individual students on the American College Testing (ACT) Program composite college entrance examination have a No

jeyben [28]

Answer:

The sample size must be atleast 3600

Step-by-step explanation:

We are given the following in the question:

The scores of individual students on the American College Testing (ACT) Program is a bell shaped distribution that is a normal distribution.

Population standard deviation = 6.0

We want that the sample standard deviation should not be more than 0.1.

Thus, the standard error should not be more than 0.1.

Standard error =

$=\dfrac{\sigma}{\sqrt{n}}$

Putting values, we get,

$\dfrac{\sigma}{\sqrt{n}}\leq 0.1\\\\ \dfrac{6}{\sqrt{n}} \leq 0.1\\\\ \sqrt{n}\geq 60\\n\geq 3600$

Thus, the sample size must be atleast 3600

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3 years ago