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4 years ago

3/4 + ( 1/3 divided by 1/6 - (-1 /2a. 3/4b. 1 3/4c. 3 1/4d. 2 1/4

Mathematics

1 answer:

andrew-mc [135]4 years ago

6 0

answer:

A is the answer because you need to divide it and add it together and then u get 3.25 which is also a fraction for 3/4

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Given the figure below, find the values of x and z.

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Answer:

Solution,

Finding the value of X,

$11x + 2 = 68$

( being vertically opposite angles)

$11x = 68 - 2 \\ 11x = 66 \\ x = \frac{66}{11} \\ x = 6$

Value of X is 6

Now, finding the value of z

$z + 68 = 180$

(sum of angle in linear pair)

$z = 180 - 68 \\ z = 112$

Value of z is 112.

Hope this helps....

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⚠️HURRY WHORTH 30 points ⚠️Charlie bikes 9 miles everyday which equation models the situation

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Answer:

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Step-by-step explanation:

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For the polynomial 6xy2 – 5x2y? + 9x2 to be a trinomial with a degree of 3 after it has been fully simplified, the missing expon

Karolina [17]

Consider the polynomial $6xy^2-5x^2y^?+9x^2$ .

For this polynomial to be trinomial with a degree of 3. We have to identify the missing exponent of the 'y' term.

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Let the missing exponent of the 'y' term be 2

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= $6xy^2-5x^2y^2+9x^2$ which is a trinomial of degree 4.

So, the missing exponent of 'y' can'not be '2'.

If we will take the missing exponent of 'y' more than 2, than the degree of the given polynomial will not be 3 anymore.

Let the missing exponent of the 'y' term be 1

So, the polynomial will be $6xy^2-5x^2y^1+9x^2$

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4 years ago

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Private colleges and universities rely on money contributed by individuals and corporations for their operating expenses. Much o

emmainna [20.7K]

Answer:

The 95% confidence interval $81.852 < \mu < 280.098$

Step-by-step explanation:

From the question we are told that

The sample mean is $\= x = 180.975$

The standard deviation is $\sigma = 143.042$

The sample size is n = 8

Given that the confidence level is 95% then the level of significance is

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

=> $\alpha =0.05$

Generally from the normal distribution table the critical value of $\frac{\alpha }{2}$ is

$Z_{\frac{\alpha }{2} } = 1.96$

Generally the margin of error is mathematically represented as

$E = Z_{\frac{\alpha }{2} } * \frac{\sigma }{\sqrt{n} }$

=> $E = 1.96 * \frac{ 143.042 }{\sqrt{8} }$

=> $E = 99.123$

Generally 95% confidence interval is mathematically represented as

$\= x -E < \mu < \=x +E$

=> $180.975 -99.123 < p < 180.975 +99.123$

=> $81.852 < \mu < 280.098$

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3 years ago

I already give you the answer for number 19 but can you please explain. And then can you tell me what question number 20 is and

madreJ [45]

So, You know the outer angle, so you need to know the inner angle on <B. so 180-148 is 32. since you know two of the inside angles, and all triangle angles add up to 180 degrees, take 32+83, which is 115, and subtract that from 180, which is 65
Hope this helps!
Vote me brainliest!

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3 years ago