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3 years ago

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A, B and C form the vertices of a triangle. BC = 6.9cm and ∠ CBA = 137°. Given that the area of the triangle is 12.6cm^2, calcul

ate the perimeter of the triangle rounded to 1 DP.

1 answer:

Anon25 [30]3 years ago

8 0

Answer:

9304t5492860534795782437904209872423897897458790532870925879048790248309787904879525492898977042247980424372

Step-by-step explanation:

assho;le

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What is true about 3 squared x 4 squared

BARSIC [14]

Hello there, and thank you for posting your question here on brainly.

Short answer: C. Product of 2 rational numbers = a rational number.

Why?

The numbers are both rational because squared is a result of a number multiplied by itself. Like (3^2 = 9). It turns out as a rational number because you're multiplying by two positive numbers, which always turns out as a rational number. (3^2 * 4^2 ==> 144) [3^2 = 9] [4^2 = 16]

Hope this helped you! ♥

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3 years ago

I’m so confused !! PLS HELP ME, it’s due in like 5 mins ASAP

Tresset [83]

Answer:

its g

Step-by-step explanation:

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4 years ago

The data and summary given in the represents a random sample of twelfth-grade girls and bots in a school district. Is there an o

zhenek [66]

Answer:

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3 years ago

Read 2 more answers

An elephant weighs 15,000 pounds on Earth and 2,500 pounds on the Moon. Assuming the weights are proportional, what percent of i

patriot [66]

Answer:

20,000

Step-by-step explanation:

4 0

3 years ago

A study shows that 20% of college students pray daily in their own religious beliefs. In a group of 300 college students, find t

svetlana [45]

Answer:

0.2805

Step-by-step explanation:

Given that p = 20% = 0.2, n = 300.

The mean (μ) = np = 0.2 * 300 = 60

The standard deviation (σ) = $\sqrt{np(1-p)}=\sqrt{300*0.2(1-0.2)}=6.93$

The z score is used to determine by how many standard deviations the raw score is above or below the mean. The z score is given by:

$z=\frac{x-\mu}{\sigma }$

For x = 57:

$z=\frac{57-60}{6.93 } =-0.43$

For x = 62:

$z=\frac{62-60}{6.93 } =0.29$

From the normal distribution table, P(57 < x < 62) = P(-0.43 < z < 0.29) = P(z < 0.29) - P(z < -0.43) = 0.6141 - 0.3336 = 0.2805

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3 years ago