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satela [25.4K]
3 years ago
9

Pliss help its 15 ponts

Mathematics
1 answer:
Viefleur [7K]3 years ago
5 0

Answer:6x+36, 5x+5, 10x-9

Step-by-step explanation:

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a pizza costs $11 and $1.50 per topping write a equation for cost in dollars and the nunber of toppings ​
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y= 11 + 1.50x. (y is the price, x is number of toppings)

Step-by-step explanation:

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The x-intercepts of the gravy of f (x)= x (x+1)(x-5)(x-7) are
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"Of the gravy" lol

To find the x-intercepts, you make f(x) = 0 and solve for x by setting each factor equal to 0. 

0 = x(x + 1)(x - 5)(x - 7)

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OR

There are x-intercepts at (- 1, 0), (0, 0), (5, 0), and (7, 0). 
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HELP ME WITH THIS MATH
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Answer: Do you know what the total degree is but if not an algebraic equation us 148-x = 26

Step-by-step explanation:

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The monomial of the 2nd degree with a coeficcient of 3
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(a) Find the size of each of two samples (assume that they are of equal size) needed to estimate the difference between the prop
zalisa [80]

Answer:

(a) The sample sizes are 6787.

(b) The sample sizes are 6666.

Step-by-step explanation:

(a)

The information provided is:

Confidence level = 98%

MOE = 0.02

n₁ = n₂ = n

\hat p_{1} = \hat p_{2} = \hat p = 0.50\ (\text{Assume})

Compute the sample sizes as follows:

MOE=z_{\alpha/2}\times\sqrt{\frac{2\times\hat p(1-\hat p)}{n}

       n=\frac{2\times\hat p(1-\hat p)\times (z_{\alpha/2})^{2}}{MOE^{2}}

          =\frac{2\times0.50(1-0.50)\times (2.33)^{2}}{0.02^{2}}\\\\=6786.125\\\\\approx 6787

Thus, the sample sizes are 6787.

(b)

Now it is provided that:

\hat p_{1}=0.45\\\hat p_{2}=0.58

Compute the sample size as follows:

MOE=z_{\alpha/2}\times\sqrt{\frac{\hat p_{1}(1-\hat p_{1})+\hat p_{2}(1-\hat p_{2})}{n}

       n=\frac{(z_{\alpha/2})^{2}\times [\hat p_{1}(1-\hat p_{1})+\hat p_{2}(1-\hat p_{2})]}{MOE^{2}}

          =\frac{2.33^{2}\times [0.45(1-0.45)+0.58(1-0.58)]}{0.02^{2}}\\\\=6665.331975\\\\\approx 6666

Thus, the sample sizes are 6666.

7 0
3 years ago
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