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3 years ago

Maurice buys a dozen of donuts on sale for $7.99 before tax.

Mathematics

1 answer:

adoni [48]3 years ago

5 0

Answer:

$8.30

Step-by-step explanation:

7.99 + 4% = 8.30

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6) (3x+3)(x - 1)<br> A) 3x² – 3<br> B) 16x² + 28x - 8<br> C) 16x + 36x + 8<br> D) 16x2 + 8

telo118 [61]

Answer:

the answer to this is

$3x {}^{2} - 3$

6 0

3 years ago

Researchers wondered if there was a difference between males and females in regard to some common annoyances. They asked a rando

Zinaida [17]

Answer:

Step-by-step explanation:

Males proportion $p_1 = \frac{163}{532} =0.3064$

Females proportion $p_2 = \frac{203}{589} =0.3447$

$H_0: p_1 = p_2\\H_a: p_1$

(one tailed test for comparison of proportions)

Test statistic = $\frac{p_1-p_2}{p(1-p)\sqrt{\frac{1}{n_1}+\frac{1}{n_2} } }$

=-1.3641

Here p= combined proportion = $\frac{163+203}{532+589} \\=0.3291$

p value = 0.0869

Since p >0.05, accept null hypothesis.

The evidence does not suggest a higher proportion of females are annoyed by this behavior

3 0

3 years ago

Which inequalities are true? Choose all answers that are correct.

Fudgin [204]

A) $5 \ \textless \ -7$ is false. There is no solution.
B) $-3 \ \textgreater \ -1$ is false. There is no solution.
C) $8 \ \textgreater \ -13$ is true. It has infinite solutions.
D) $-10 \ \textless \ -6$ is true. It has infinite solutions.
E) $-14 \ \textless \ -15$ is false. There is no solution.

7 0

3 years ago

what is the equation in slope intercept form of the line that goes through (2,4) and is perpendicular to the line represented by

Andrej [43]

Answer:

$y = \frac{3x}{2}+1$

Step-by-step explanation:

The slope-intercept form of a straight line equation is y = mx + c, where m is the slope and c is the y-intercept of the line.

Now, we know that if two straight lines are perpendicular to each other then the product of their slopes will be -1.

So, the equation of a straight line which is perpendicular to the line $y = -\frac{2x}{3} +6$ will be $y= \frac{3x}{2}+ c'$ ....... (1), where c' is constant.