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Semenov [28]
3 years ago
15

The measures of the angles of a triangle are shown below. Solve for x

Mathematics
1 answer:
Levart [38]3 years ago
3 0

Step-by-step explanation:

90+60+7x+12=180(sim of angles in a triangle)

7x+162=180

7x=180-162

7x=18

x=18/7

x=2.6

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Citrus2011 [14]

The answer for the first picture is 648π or 2034.72

I got the answer using the formula πr squared times the height

so π9squared x 8

3 0
3 years ago
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Which of the following is a proportion?
poizon [28]

Answer:

Option C, 14/21=9/21 is the proportion.

Step-by-step explanation:

Given:

a.5/7 = 10/12

b.9/15 = 12/18

c.4/6 = 8/12

d.14/21 = 9/12

We have to find the proportions.

In proportion two ratios are equal, as it has an equality sign in between so both side must be of same ratio in its simplest form.

Let's work with option C

⇒ \frac{4}{6}=\frac{8}{12}

To find the simplest form we have to divide the numerator and denominator with same digit (or its factor).

Simplest form of  \frac{8/2}{12/2} = \frac{4}{6} , \frac{4/2}{6/2}= \frac{2}{3}

Simplest form of \frac{4}{6} = \frac{2}{3}

Both sides in option C have equal ratios of 2/3.

So 4/6=8/12 is in proportion.

6 0
3 years ago
While exercising victor walked 3/4 of a mile in 1/5 of an hour. at this rate how far will he have traveled after an hour
Marina86 [1]
(1 / 5) hour is 12 minutes and five times this equals 1 hour.
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4 0
3 years ago
Jarrett's puppy weighed 3 3/4 ounces at Birth. At 1 week old, the puppy weighed 5 1/8 ounces. At 2 weeks old, the puppy weighed
Ad libitum [116K]

Answer:  The answer is 7\dfrac{7}{8} ounces.

Step-by-step explanation: Given in the question the weight of Jarrett's puppy at birth, one week old and 2 weeks old are as follows:

b_0=3\dfrac{3}{4}=\dfrac{15}{4}~\textup{ounces},\\\\\\b_1=5\dfrac{1}{8}=\dfrac{41}{8}~\textup{ounces},\\\\\\b_3=6\dfrac{1}{2}=\dfrac{13}{2}~\textup{ounces}.

We can see that

b_1-b_0=b_2-b_1=\dfrac{11}{8}.

So, the weight of the baby will make an arithmetic progression with first term 'a' and common difference 'd' as follows:

b_0=\dfrac{15}{4},~~d=\dfrac{11}{8}.

Thus, the weight of the puupy after 3 weeks will be

b_3=b_0+3\times d=\dfrac{15}{4}+3\times\dfrac{11}{8}=\dfrac{30+33}{8}=\dfrac{63}{8}=7\dfrac{7}{8}~\textup{ounces}.

5 0
4 years ago
Read 2 more answers
A teacher collects data on the number of hours, s, his students spend studying and the number of hours, t, they spend watching T
NikAS [45]
Negative linear association is like inverse variation or a negative slope

we got

s=-0.5t+3.6
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that means when they spent 0 hours watching tv, they spend 3.6 hours doing homework

that could mean that they have 3.6 free hours to do homework or watch tv
8 0
3 years ago
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