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2 years ago

What value of y makes the 2 triangles congruent by SSS?

Mathematics

1 answer:

aleksandrvk [35]2 years ago

8 0

The triangle was just flipped so the missing side is going to equal 36, so...
2y+20= 36
(Subtract 20 from each side to isolate the 2y)
2y= 16
(Divide each side by 2 to isolate the variable)

ANSWER:
y= 8

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Plz translate the question and solve.

trasher [3.6K]

The inequality would be 200>(or equal to) 500-25x, x representing the number of weeks. Then you just solve the inequality. Subtract 500 from both sides (-300= -25x). Divide both sides by -25 (12=x). The answer is he can withdraw money for up to 12 weeks.

8 0

3 years ago

You measure 34 backpacks' weights, and find they have a mean weight of 33 ounces. Assume the population standard deviation is 10

Dmitriy789 [7]

Answer:

The maximal margin of error associated with a 99% confidence interval for the true population mean backpack weight is 4.81 ounces

Step-by-step explanation:

We have that to find our $\alpha$ level, that is the subtraction of 1 by the confidence interval divided by 2. So:

$\alpha = \frac{1-0.99}{2} = 0.005$

Now, we have to find z in the Ztable as such z has a pvalue of $1-\alpha$ .

So it is z with a pvalue of $1-0.005 = 0.995$ , so $z = 2.575$

Now, find the margin of error M as such

$M = z*\frac{\sigma}{\sqrt{n}}$

In which $\sigma$ is the standard deviation of the population and n is the size of the sample.

$M = 2.575*\frac{10.9}{\sqrt{34}} = 4.81$

The maximal margin of error associated with a 99% confidence interval for the true population mean backpack weight is 4.81 ounces

6 0

2 years ago

A segment with endpoints on the circle is a _____.

ziro4ka [17]

Answer:

A segment which ends points on a circle is a Chord.

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2 years ago

Sara is building a triangular pen for her pet rabbit. If two of the sides measure 8 feet and 15 feet, what could the length of t

Aleks04 [339]

As the pen is a triangle, the third side can either be the hypotenuse or a regular side. If the third side is the hypotenuse, it's length would be $l= \sqrt{8^2+15^2} = \sqrt{64+225} = \sqrt{289} =17$ feet. If the third side is a regular side, than it would be $l= \sqrt{15^2-8^2} = \sqrt{225-64} = \sqrt{161}$ ≈12.689 feet. This means your third side can either be 17 feet long or 12.689 feet long.

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2 years ago

How many digits will be to the right of the decimal point in the product?<br><br> 1.456 × 84

Monica [59]

Decimal pt after 3 digits in first number so 3 digits in product.

6 0

3 years ago

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