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3 years ago

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At the bake sale there were 72 raisin cookies sold if the ratio of raisin cookies sold to oatmeal cookies sold was 9:1 what is t

he combined amount of raisin and oatmeal cookies sold

1 answer:

White raven [17]3 years ago

8 0

The answer to your question is 72 raisin cookies were sold and 8 oatmeal cookies were sold so combined you would have 80

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Vlada [557]

Answer:

7 X 10

Step-by-step explanation:

because up and down there are 7 and left to right there are 10

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3 years ago

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I can’t figure out how to use the zeros in the polynomial. Please explain

Temka [501]

Answer:

a) $P (x) = (x + 3) (x-1) (x-4)$

b) $P (x) = (2x + 5) (5x - 4) (x-6)$

c) $P (x) = (x-3) (x-1) (x-4) (x + 1) ^ 2$

Step-by-step explanation:

<u>For the question a *</u> you need to find a polynomial of degree 3 with zeros in -3, 1 and 4.

This means that the polynomial P(x) must be zero when x = -3, x = 1 and x = 4.

Then write the polynomial in factored form.

$P (x) = (x + 3) (x-1) (x-4)$

Note that this polynomial has degree 3 and is zero at x = -3, x = 1 and x = 4.

<u>For question b, do the same procedure</u>.

Degree: 3

Zeros: -5/2, 4/5, 6.

The factors are

$x = -\frac{5}{2}\\\\x +\frac{5}{2} = 0\\\\(2x +5) = 0$

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$x =\frac{4}{5}\\\\x-\frac{4}{5} = 0\\\\(5x-4) = 0$

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$x = 6\\\\(x-6) = 0$

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$P (x) = (2x + 5) (5x - 4) (x-6)$

<u>Finally for the question c we have</u>

Degree: 5

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Multiplicity 2 in -1

$x = -3\\\\(x-3) = 0$

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$x = 1\\\\(x-1) = 0$

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$x = 4\\\\(x-4) = 0$

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$x = -1\\\\(x + 1) = 0$

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$P (x) = (x-3) (x-1) (x-4) (x + 1) ^ 2$

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3 years ago

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Dima020 [189]

Step-by-step explanation:

(x+5)^2 = 2( 5x-3)

x^2+25=10x-6

x^2-10x+25+6= 0

x^2-10x+31=0

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Natasha_Volkova [10]

Answer:
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3 years ago

A 90% confidence interval for the average salary of all CEOs in the electronics industry was constructed using the results of a

Stella [2.4K]

Answer:

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Step-by-step explanation:

Confidence interval:

Confidence level of x%

We build from a sample.

Between a and b.

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In this question:

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So

We are 90% sure that the mean salary of all CEO's falls within this interval.

The correct answer is:

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3 years ago