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kap26 [50]
3 years ago
9

Matt bought 8 pie molds at a cost of $0.67 per mold. He also bought 8 pre-

Mathematics
1 answer:
kupik [55]3 years ago
6 0

Answer:

$5.36

Step-by-step explanation:

multiply 8 by .67

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The first step for deriving the quadratic formula from the quadratic equation, 0 = ax2 + bx + c, is shown. Step 1: –c = ax2 + bx
Goshia [24]

Answer:

Subtract c from each side, using the subtraction property of equality

Step-by-step explanation:

0 = ax^2 + bx + c

Subtract c from each side, using the subtraction property of equality

-c = ax^2 + bx + c-c

-c = ax^2 + bx

4 0
3 years ago
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What is the unit rate of the proprrional relationship represented by the equation y=3x
NeX [460]

The unit rate of the proportional relationship y = 3x is 3

<h3>How to determine the unit rate?</h3>

The proportional relationship is given as:

y = 3x

Divide both sides by x

y/x = 3

For a proportional relationship y/x = k;

The unit rate is 3

This means that the unit rate of the proportional relationship y = 3x is 3

Read more about proportional relationship at

brainly.com/question/12242745

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6 0
2 years ago
A bottled water distributor wants to determine whether the mean amount of water contained in 1-gallon bottles purchased from a n
mash [69]

Answer:

We fail to reject H0; Hence, we conclude that there is no significant evidence that the mean amount of water per gallon is different from 1.0 gallon

Pvalue = - 2

(0.98626 ; 1.00174)

Since, 1.0 exist within the confidence interval, then we can conclude that mean amount of water per gallon is 1.0 gallon.

Step-by-step explanation:

H0 : μ= 1

H1 : μ < 1

The test statistic :

(xbar - μ) / (s / sqrt(n))

(0.994 - 1) / (0.03/sqrt(100))

-0.006 / 0.003

= - 2

The Pvalue :

Pvalue form Test statistic :

P(Z < - 2) = 0.02275

At α = 0.01

Pvalue > 0.01 ; Hence, we fail to reject H0.

The confidence interval :

Xbar ± Margin of error

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Zcritical at 99% confidence level = 2.58

Margin of Error = 2.58 * 0.03/sqrt(100) = 0.00774

Confidence interval :

0.994 ± 0.00774

Lower boundary = (0.994 - 0.00774) = 0.98626

Upper boundary = (0.994 + 0.00774) = 1.00174

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7 0
3 years ago
What is the y-intercept of the line perpendicular to the line...
Dominik [7]

Answer:

D) 5

Step-by-step explanation:

Perpendicular lines have opposite reciprocal slopes.

The line: y=\frac{3}{4} x+3 has a slope of \frac{3}{4} as it is  in y=mx+b form, where m is the slope, and b is the y-intercept.

Since the slope is \frac{3}{4}, we see that the negative reciprocal slope is -\frac{4}{3}, as \frac{4}{3} is the reciprocal (flip the numerator and denominator).

From here, we can use point slope form: y - y1 = m(x- x1), where (y1, x1) is  the point. In this case, (3, 1) is the point.

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Simplifying: y-1 = -\frac{4}{3}x+4

And: y=-\frac{4}{3}x+5, which gives us the y-intercept to be 5.

Let me know if this helps!

4 0
2 years ago
Given f(x) = 5x2 2 and g(x) = 2x3 (f º g)(x) is a function of degree
IgorLugansk [536]
Suppose you are given the two functions  <span>f (x) = 2x + 3</span><span> and </span><span>g(x) = –x2 + 5</span><span>. Composition means that you can plug </span><span>g(x)</span><span> into  </span><span>f (x)</span><span>. </span>
3 0
3 years ago
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