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Aleonysh [2.5K]

3 years ago

14

Find the measure of an angle such that the difference between the measures of its supplement and nine times its complement is 5

0°

1 answer:

zaharov [31]3 years ago

8 0

Answer:

130°

Step-by-step explanation:

90° ± 90° = 180°

180° - 50° = 130°

130°

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uranmaximum [27]

20% of 60 is 12

60/300 = 20%

The friend is incorrect because that is 20% of 300 not 60

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3 years ago

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A university dean is interested in determining the proportion of students who receive some sort of financial aid. Rather than ex

Roman55 [17]

Answer:

Standard error (S.E) = 0.048 ≅ 0.05

Step-by-step explanation:

<u>Explanation</u>:-

Given sample size 'n'=76

Given the dean who randomly selects 76 students and finds that 58 out of 76 are receiving financial aid.

Sample proportion

$p = \frac{x}{n} = \frac{58}{76} = 0.7631$

The standard error is determined by

$S.E = \sqrt{\frac{p(1-p)}{n} }$

$S.E = \sqrt{\frac{0.763(0.2369}{76} }$

Standard error is 0.048 ≅ 0.05

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3 years ago

Li keeps track of the time he spends working out each week. The table shows the number of cardio workouts and the number of weig

Dmitry [639]

Step-by-step explanation:

1)X represents the time he spent in cardio.

Y represents the time he spent in weighted.

2)If you could put the options on the second one it would be better.

3)4x+y=210

3x+2y=195

y=210-4x

3x+2(210-4x)=195

3x+420-8x=195

5x=420-195

5x=225

x=45

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Total time of one cardi and weighted = 75min= 5/4 h.

4)2x+4y=

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3 years ago

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Guests at a pizza party are seated at three tables. The small table has 5 seats and 2 pizzas. The medium table has 7 seats and 3

bagirrra123 [75]

Answer:

the 5 seated table with the 2 pizzas got more each.

Step-by-step explanation:

$\frac{5}{2} = 2\frac{1}{y2}$ pieces each

$\frac{7}{3} = 2\frac{1}{3}$ pieces each

$\frac{12}{5} = 2\frac{2}{5}$ pieces each

Now change the fractions s that they all have a common denominator.

$2\frac{1}{2} = 2\frac{15}{30}$

$2\frac{1}{3} = 2\frac{10}{30}$

$2\frac{2}{5} = 2\frac{15}{30}$

Thus meaning that the 5 seated table with the 2 pizzas got more each.

6 0

3 years ago

Can someone help me with this ? Thanks

olasank [31]

Answer:

Type of angle - Obtuse

Key information - 180° - 82° = 98° (missing angle)

Equation - $(5y+12)=98$ $y=17.2$

Step-by-step explanation:

Let's solve for the missing angle first! 180° - 82° = 98°. 180 represents the total among the angles so we use 180 degrees.

then use the statement to solve for y and make it equal to 98°

$(5y+12)=98$

$(5y-12)$ = -12 subtract 12 from both sides

$(5y)$ = 86 Now solve for y by dividing 86 ÷ 5

y = 17.2

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