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4 years ago

Anyone who answers correctly gets brainlist!

Mathematics

2 answers:

kolbaska11 [484]4 years ago

8 0

D. 5 1/2

2 and 1/4 plus 3 and 1/4: you add the whole numbers together and get 5. then you add the fractions and get 2/4 then simply 2/4 for 1/2 and then your answer is 5 1/2.

just olya [345]4 years ago

7 0

Answer:

D. 5 1/2

Step-by-step explanation: These fractions have a common denominator (the number at the bottom of the fraction). So, you can add the whole numbers and then the fractions together.

2 + 3 = 5

1/4 + 1/4 = 2/4

2/4 simplifies to 1/2

So, your final answer is 5 1/2

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5 out of every 8 students live in a college dorm. How many of the 30 students are likely to live in a college dorm?

GaryK [48]

Approximately 19 students are likely to live in a college dorm out of every 30 students.

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4 years ago

A sandbox is shaped like a rectangle. The area is 16 square feet. The side lengths are whole numbers. What are the possible dime

AleksAgata [21]

Answer:

4 feet long, 4 feet wide

Step-by-step explanation:

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4 years ago

Find the six trigonometric values for this angle. Will mark Brainliest.

nlexa [21]

Step-by-step explanation:

Terminal arm of the angle passes through the point (-2, 11) = (x, y)

$r = \sqrt{ {x}^{2} + {y}^{2} } \\ = \sqrt{ {( - 2)}^{2} + {11}^{2} } \\ = \sqrt{4 + 121} \\ = \sqrt{125} \\ = 5 \sqrt{5} \\ \\ sin \beta = \frac{y}{r} = \frac{11}{5 \sqrt{5} } \\ \\ cos\beta = \frac{x}{r} = \frac{ - 2}{5 \sqrt{5} } = - \frac{ 2}{5 \sqrt{5} } \\ \\ tan \beta = \frac{y}{x} = \frac{11}{ - 2} = - \frac{11}{2} \\ \\ cosec \beta = \frac{r}{y} = \frac{5 \sqrt{5} }{11 } \\ \\ sec\beta = \frac{r}{x} = \frac{5 \sqrt{5}}{ - 2} = - \frac{5 \sqrt{5}}{ 2} \\ \\ cot \beta = \frac{x}{y} = \frac{ - 2}{ 11} = - \frac{2}{11}$

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3 years ago

Does anybody know how to determine the angle again? of Q.B

Nastasia [14]

Answer:

Therefore the measur angle ACB

$m\angle ACB=61.93\°$

Step-by-step explanation:

Given:

ΔABC is a right Triangle at ∠A = 90°

AB = 15 ....Side Opposite to ∠ACB

AC = 8 ....Side Adjacent to ∠ACB

To Find:

m∠ACB = ?

Solution:

In Right Angle Triangle ABC, Tangent Identity we have

$\tan (\angle ACB) = \dfrac{\textrm{side opposite to angle ACB}}{\textrm{side adjacent to angle ACB}}$

Substituting the values we get

$\tan (\angle ACB) = \dfrac{AB}{AC}=\dfrac{15}{8}=1.875\\\\\angle ACB=\tan^{-1}(1.875)\\m\angle ACB=61.93\°$

Therefore the measur angle ACB

$m\angle ACB=61.93\°$

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4 years ago

Flori’s Flower shop contains fewer than 150 flowers. All the flowers are purple, yellow, red or white. The ratio of purple flowe

alexgriva [62]

Flori's Flower Shop have 48 white flowers, 40 red flowers, 30 yellow flowers and 15 purple flowers, whose sum equals 133 flowers, which is fewer than 150 flowers.

<h3>How to determine the quantity of flowers in a flower shop</h3>

Flori's Flower shop owns a quantity less than 150 flowers, in which there are four kinds of flowers according to color: (purple - p, yellow - y, red - r, white - w), each variable represents positive integers. Now we proceed to construct the system of equation that describes the situation:

z < 150 (1)

p + y + r + w = z (2)

p = y/2 (3)

y = 3 · r/4 (4)

r = 5 · w/6 (5)

By (1) and (3) in (2):

y/2 + y + r + w < 150

By (4):

3 · y/2 + r + w < 150

9 · r/8 + r + w < 150

17 · r/8 + w < 150

By (5):

85 · w/48 + w < 150

133 · w/48 < 150

133 · w < 7200

w < 54.135

Now we assume that w = 48, then we have the following solution for the flower shop: r = 40, y = 30, p = 15.

To learn more on inequalities, we kindly invite to check this verified question: brainly.com/question/20383699

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2 years ago