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3 years ago

Are these triangles similar?A) YesB) No

Mathematics

1 answer:

andrew11 [14]3 years ago

5 0

Answer:

B) No

Step-by-step explanation:

They are not similar because if you add all three angles, they add up to 179. Every triangle is supposed to have 180°.

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roger is at the bakery. he is thinking of buying 1 ¾ lb of rainbow cookies. rainbow cookies cost $11.50 per pound. how much woul

nasty-shy [4]

Answer:

The cookies would cost $20.125

Step-by-step explanation:

You would mulitply 1 3/4 by 11.50 to get your answer

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3 years ago

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When Isaac commutes to work, the amount of time it takes him to arrive is normally distributed with a mean of 44 minutes and a s

mario62 [17]

Answer:

[34,54]

Step-by-step explanation:

-The empirical rule states that the 95% of the sampled observations will fall within two standard deviations of the mean for a normally distributed population.

Where:

68% is the first standard deviation
95% is the second standard deviation about the mean
99.7% is the 3rd standard deviation about the mean.

-Therefore. the middle 95% interval is calculated as:

$CI=\mu+2\sigma\\\\=44\pm 2(5)\\\\=44\pm 10\\\\=[34,54]$

Hence, the interval is [34,54]

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3 years ago

Mei can wax a floor in seven minutes. Emily can wax the same floor in six minutes. How long would it take them if they worked to

MatroZZZ [7]

Answer:

x = 3 minutes and 23 seconds

Step-by-step explanation:

It is given that,

Mei can wax a floor in seven minutes and Emily can wax the same floor in six minutes.

Mei's work for 1 minute = 1/7

Emily's work for 1 minute = 1/6

Let x is total time together.

So,

$\dfrac{1}{7}+\dfrac{1}{6}=\dfrac{1}{x}\\\\\dfrac{1}{x}=\dfrac{7+6}{42}\\\\\dfrac{1}{x}=\dfrac{13}{42}\\\\x=\dfrac{42}{13}\\\\x=3.23\ \text{minutes}\\\\\text{or}\\\\x=3\ \text{minutes}\ 23\ \text{seconds}$

If they work together, 3 minutes and 23 seconds will be taken.

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3 years ago

Please hep I really need this answered

bagirrra123 [75]

Answer: D) 1/32

Step-by-step explanation:

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3 years ago

Mr. Pham wrote 2.619 on the board. Christy says it is two and six hundred nineteen thousandths. Amy says it is 2 ones 6 tenths 1

MrRissso [65]

Christy and Amy both are right.

Further explanation:

Given:

Mr. Pham wrote 2.619 on the board. Christy said the number is two and six hundred nineteen thousandths.

Amy said the number is 2 ones 6 tenths 1 hundredth 9 thousandth.

Calculation:

According to the Christy the number is two and six hundred nineteen thousandths.

The number 2.619 can be written according to the Christy as follows,

$\begin{aligned}\hfill2.619\mathop&=\limits^?2+\frac{{619}}{{1000}}\\\hfill2.619\mathop&=\limits^?2+0.619\\\hfill2.619&=2.619\\\end{aligned}$

In the above calculation the symbol $\mathop=\limits^?$ is used to check that right hand side and left hand side is equal or not.

Therefore, the left hand side and right hand side is equal.

According to Christy the number 2.619 is two and six hundred nineteen thousandths.

Therefore, Christy is correct.

According to the Amy the number is 2 ones 6 tenths 1 hundredth 9 thousandth.

The number 2.619 can be written according to the Amy as follows,

$\begin{aligned}\hfill 2.619\mathop&=\limits^?2+\frac{6}{{10}}+\frac{1}{{100}}+\frac{9}{{1000}}\\\hfill2.619\mathop&=\limits^?2+0.6+0.01+0.009\\\hfill2.619&=2.619\\\end{aligned}$

Therefore, the left hand side and right hand side is equal.

According to Amy the number 2.619 is 2 ones 6 tenths 1 hundredth 9 thousandth.

Thus, Amy is correct.

Learn more:

1. Learn more about problem on function brainly.com/question/1632445

2. Learn more about problem on triangle brainly.com/question/7437053

3. Learn more about problem on range and domain of functions brainly.com/question/3412497

Answer details:

Grade: Middle school

Subject: Mathematics

Chapter: Numbers

Keywords:

Mr. Pham, Christy, Amy, hundredths, thousandths, nineteen, right hand side, left hand side.

4 0

3 years ago

Read 2 more answers

Are these triangles similar?A) YesB) No​

Are these triangles similar?A) YesB) No