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2 years ago

Find the area of the isosceles triangle. 20 cm 20 cm 32 cm

Mathematics

1 answer:

SIZIF [17.4K]2 years ago

6 0

Answer:

20 cm

Step-by-step explanation:

just a guess since there isn't a pic

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At a tennis event, 10% of a player's score is based on serves, 40% on return balls, and 50% on wins. Kyle makes 85% of his serve

ella [17]

The answer would be 74 I took the test :)

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3 years ago

Help me please! :(

lesantik [10]

Answer:

Step-by-step explanation:

Angles 1 and 2 are supplementary, which means that their sum is 180 degrees.

180 - 120 = 60

Angle 1 is 60 degrees

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3 years ago

Giai bat phuong trinh: 10x + 3 - 5x_< 14x + 12

statuscvo [17]

Answer:

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10x + 3 - 5x_< 14x + 12

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3 years ago

Read 2 more answers

Write an exponential function y = abx for a graph that includes (–3, 16) and (–1, 4) f(x) = 2(0.5)x f(x) = 0.5(2)x f(x) = 4(0.3)

Arisa [49]

Answer: $f(x)=2(0.5)^x$

Step-by-step explanation:

Given, the exponential function $y = ab^x$ for a graph that includes (–3, 16) and (–1, 4).

On putting these points, we will have

$f(-3)=16=ab^{-3}\\\\ f(-1)=4=ab^{-1}$

Now,

$\dfrac{f(-3)}{f(-1)}=\dfrac{16}{4}=\dfrac{ab^{-3}}{ab^{-1}}\\\\\Rightarrow\ \dfrac{4}{1}=\dfrac{b^{-3}}{b^{-1}}\\\\\Rightarrow\ \dfrac{4}{1}=\dfrac{b}{b^3}=\dfrac{1}{b^2}\\\\\Rightarrow\ b^2=\dfrac{1}{4}\\\\\Rightarrow\ b=\pm\dfrac{1}{2}=\pm0.5$

since the multiplicative factor cannot be negative, so b= 0.5.

At b= 0.5

$4=a(0.5)^{-1}\\\\\Rightarrow\ 4=a(\dfrac{1}{2})^{-1}\\\\\Rightarrow\ 4=a(2)\\\\\Rightarrow \ a=2$

So, the required function is $f(x)=2(0.5)^x$ .

3 0

3 years ago

You randomly draw a marble from a bag, record is color, and then replace it. You draw a blue marble 11 out of 50 times. What is

chubhunter [2.5K]

<h3>Answer: 11/50</h3>

Explanation:

This may seem like a trick question, but it's not. Your teacher simply wants to know how many times you got blue out of the number of times total. The numerator is the number of blue. The denominator is the number of total tries. The fraction 11/50 cannot be reduced because 11 and 50 share no common factors other than 1.

Notes:

11/50 = 0.22 = 22%
The answer above applies to experimental probability only. The theoretical probability is likely different. We don't have enough info to compute the theoretical probability.

3 0

3 years ago