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3 years ago

Please help, due tomorrow

Mathematics

2 answers:

Ksju [112]3 years ago

4 0

Answer:10x2 - 10x - 6 needs simplified first so you get 90x - 6. Also if you know X I can help you solve it just tell me what X is

Step-by-step explanation:

dexar [7]3 years ago

3 0

Answer:

When we add 10x^2-10x-6 and x+6 then the result will be 10x^2-9x or x(10x-9) and that's the answer .

Step-by-step explanation:

Use Basic mathematics of Addition .

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Chocolate chip cookies have a distribution that is approximately normal with a mean of 24.2 chocolate chips per cookie and a sta

Allisa [31]

Answer:

Percentile 5

$z=-1.64$

And if we solve for a we got

$a=24.2 -1.64*2.6=19.94$

Percentile 95

$z=1.64$

And if we solve for a we got

$a=24.2 +1.64*2.6=28.46$

Step-by-step explanation:

Let X the random variable that represent the variable of interest of a population, and for this case we know the distribution for X is given by:

$X \sim N(24.2,2.6)$

Where $\mu=24.2$ and $\sigma=2.6$

We want to find the percentiles 5 and 95 for this case.

Percentile 5

For this part we want to find a value a, such that we satisfy this condition:

$P(X>a)=0.95$ (a)

$P(X$ (b)

We want to find a percentile with 0.95 of the area on the left and 0.05 of the area on the right it's z=-1.64. On this case P(Z<-1.64)=0.05 and P(z>-1.64)=0.05

Using this condition we got:

$P(X$

$P(z$

Replacing we got:

$z=-1.64$

And if we solve for a we got

$a=24.2 -1.64*2.6=19.94$

Percentile 95

$z=1.64$

And if we solve for a we got

$a=24.2 +1.64*2.6=28.46$

4 0

4 years ago

What is 3 times 4 brodie:)

Nata [24]

Answer:

the ans of this q should be 12 because 3 times 4 is 12 and the last word (brodie) the meaning of this word i dont know so yaa

4 0

3 years ago

Ben is 5 years less than 3 times Gracie's age. How can that be represented as an expression?<br>

Tanzania [10]

You can write 5 times 3

7 0

3 years ago

Billy likes to go cycling.

Agata [3.3K]

Answer:

560 metres

Step-by-step explanation:

80 cm in metres is 0.8 metres.

After 1 revolution any point on the wheel will be back to the original position before moving. 0.8 times 2, which gives us 1.6 metres. In 1 revolution the bike travels 1.6 metres.

Now 1.6 metres times 350 gives us 560.

So the answer is 560 metres.

4 0

2 years ago

Rafiq compares the

Furkat [3]

Answer:

Hey there!

Rafiq's error was that the other number is also changing. He had 4 x 8 and if he had 8 x 8, that would be twice as much, but he used 8 x 12 instead, and 12 is not 8.

Let me know if this helps :)

5 0

3 years ago