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3 years ago

ANSWER ASAP PLEASE. How many lines of symmetry does this figure have?

Mathematics

1 answer:

elena-s [515]3 years ago

7 0

Answer:

Step-by-step explanation:

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Which triangle has 0 reflectional symmetries?

Tju [1.3M]

Answer:

the traingle that have 0 reflectional is the scalene traingle then its number one all defferent sides

give me brainliest if it true

3 0

2 years ago

Read 2 more answers

A student moves into a bigger apartment that rents for $550 per month. That rent is $300 less than twice what she had been payin

Nataly_w [17]

Answer:

Step-by-step explanation:

Her former rent is $ x

Twice the former rent: 2*x = 2x

$300 less than 2x: 2x - 300

2x - 300 = 550

Add 300 to both sides

2x - 300 + 300 = 550 + 300

2x = 850

Divide both sides by 2

2x/2 = 850/2

x = 425

Her former rent = $425

8 0

3 years ago

Read 2 more answers

Answers need help!!!!!!

Gala2k [10]

<h3>Step-by-step explanation:</h3>

<u>Pythagorus theorum:</u>

9² = 3² + YZ²

81 - 9 = YZ²

√72 = YZ

∴YZ= 8.48 ≈ 8.5

<u>Trigonometry:</u>

We have adjacent as 3, and hypotenuse as 9

cos X = 3/9

X= cos∧-1 (3/9) → <em>[cos inversed]</em>

∴X= 70.5°

We have opposite as 3 and hypotenuse as 9

sin Z= 3/9

Z= sin∧-1 (3/9)→<em> [sin inversed]</em>

∴Z= 19.47 ≈ 19.5

4 0

2 years ago

Someone please help me

Hoochie [10]

I think it might be point be but I’m not sure if it’s correct I’m sorry if it’s wrong

7 0

2 years ago

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The average time an individual reads online national news reports is 49 minutes. Assume the standard deviation is 16 minutes and

Olin [163]

Answer:

0.118 is the probability someone will spend no more than 30 minutes reading online national news reports.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 49 minutes

Standard Deviation, σ = 16 minutes

We are given that the distribution of time an individual reads is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

P(no more than 30 minutes)

$P( x \leq 610) = P( z \leq \displaystyle\frac{30 - 49}{16}) = P(z \leq -1.1875)$

Calculation the value from standard normal z table, we have,

$P(x \leq 30) = 0.118 = 11.8\%$

0.118 is the probability someone will spend no more than 30 minutes reading online national news reports.

3 0

2 years ago