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4 years ago

Subtract. (8u - 2v + 7w) and (5u + v + 6w)

Mathematics

1 answer:

KiRa [710]4 years ago

5 0

Answer:

c)3u-3v-w

Step-by-step explanation:

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The female lion at a zoo weights 190 pounds more than female cheetah.Let c represent the weight in pounds of the cheetah.Wright

garri49 [273]

Answer:

c + 190 = Weight of the lion

Step-by-step explanation:

6 0

3 years ago

Help!!! I need help figuring out these problems for a geometry eoc please please help

kipiarov [429]

I don't know how to solve for the measures of each angle but I can tell what type of angles each of these are. (a) obtuse angle, (b) not sure, (c) not sure, (d) The relationship between the angles BA and BE is that together they form a right angle. And #3, I cannot helps with. Very, sorry that I was not able to answer all of your question. Hope this helps!

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3 years ago

The standard IQ test is designed so that the mean is 100100 and the standard deviation is 1515 for the population of all adults.

Natalija [7]

Answer:

The sample size should be approximately 151.

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = 100

Population standard deviation, σ = 15

We have to evaluate the sample size, n.

Alpha, α = 0.10

Confidence interval:

$\mu \pm z_{critical}\frac{\sigma}{\sqrt{n}}$

Putting the values, we get,

$z_{critical}\text{ at}~\alpha_{0.10} = \pm 1.64$

$100 \pm 1.64(\frac{15}{\sqrt{n}} ) = (98,102)$

$100 \pm 1.64(\displaystyle\frac{15}{\sqrt{n}} ) = (98,102)\\\\1.64(\frac{15}{\sqrt{n}} ) = 2\\\\n = 151.29 \approx 151$

Thus, the sample size should be approximately 151.

6 0

3 years ago

Can someone and give me the right answer

kolezko [41]

The 1st option is your answer,

because to solve c, the -11 and 11 = 0, so your left with adding 23 and 11, then you divide -4 on both sides to get the variable (x) by itself

And for f, you only need to divide -4 on both sides to get x by itself.

6 0

3 years ago

Need help with a math question PLEASE HELP

PolarNik [594]

Answer:

57%

Step-by-step explanation:

From the table you can state that:

the total number of students is 10,730
the number of students receiving Finincial Aid is 6,101

Use the definition of the probability

$Pr=\dfrac{\text{The number of favorable outcomes}}{\text{The number of all possible outcomes}}$

So,

the number of favorable outcomes = 6,101
the number of all possible outcomes = 10,730

Hence, the probability is

$Pr=\dfrac{6,101}{10,730}\approx 0.5685\approx 57\%$

6 0

3 years ago