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AnnyKZ [126]
3 years ago
15

Which of the triangles shown are isosceles triangles?

Mathematics
2 answers:
aalyn [17]3 years ago
5 0

Answer:

Triangle C

Step-by-step explanation:

Hello There!

An isosceles triangle has two congruent sides

Triangle C has two sides that equal 4 therefore triangle C is an isosceles triangle

Triangles A, B and C have no congruent sides therefore they are not isosceles triangles

WITCHER [35]3 years ago
4 0

Answer:

I'm pretty sure that the correct answer here is Triangle C. I think this is the correct answer because an isosceles triangle has two sides that are the same length, and that's what Triangle C represents.

Step-by-step explanation:

Hope that this helps! :)

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The equation |2x-8|+3= 5 has 2 solutions. These
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Answer:  x=8  x=0

Step-by-step explanation:

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3 years ago
Anastasia is grocery shopping with her father and wonders how much shopping is left to do. "We already have 60 percent of the it
Ilia_Sergeevich [38]
Hi

Left to do 40% of the shopping

12 items ⇒ 60% of the items
x items ⇒ 40% of the items

60x = 12(40)
60x = 480
x = 480/60
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Answer:

Left 8 items of the list (40% of the shopping)

Items: 12+8 = 20 items on her list
4 0
3 years ago
Read 2 more answers
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Answer:

2) (3,-2)

Step-by-step explanation:

the solution is where the lines intersect. they intersect at one point because this function is linear. they intersect at the point (3,-2)

5 0
3 years ago
find three consecutive odd integers such that the sum of the middle and largest integer is 21 more than smallest integer. ​
mina [271]

Answer:

15, 17, 19

Step-by-step explanation:

8 0
3 years ago
While conducting a test of modems being manufactured, it is found that 10 modems were faulty out of a random sample of 367 modem
Kitty [74]

Answer:

We conclude that this is an unusually high number of faulty modems.

Step-by-step explanation:

We are given that while conducting a test of modems being manufactured, it is found that 10 modems were faulty out of a random sample of 367 modems.

The probability of obtaining this many bad modems (or more), under the assumptions of typical manufacturing flaws would be 0.013.

Let p = <em><u>population proportion</u></em>.

So, Null Hypothesis, H_0 : p = 0.013      {means that this is an unusually 0.013 proportion of faulty modems}

Alternate Hypothesis, H_A : p > 0.013      {means that this is an unusually high number of faulty modems}

The test statistics that would be used here <u>One-sample z-test</u> for proportions;

                             T.S. =  \frac{\hat p-p}{\sqrt{\frac{p(1-p)}{n} } }  ~  N(0,1)

where, \hat p = sample proportion faulty modems= \frac{10}{367} = 0.027

           n = sample of modems = 367

So, <u><em>the test statistics</em></u>  =  \frac{0.027-0.013}{\sqrt{\frac{0.013(1-0.013)}{367} } }

                                     =  2.367

The value of z-test statistics is 2.367.

Since, we are not given with the level of significance so we assume it to be 5%. <u>Now at 5% level of significance, the z table gives a critical value of 1.645 for the right-tailed test.</u>

Since our test statistics is more than the critical value of z as 2.367 > 1.645, so we have sufficient evidence to reject our null hypothesis as it will fall in the rejection region due to which <u><em>we reject our null hypothesis</em></u>.

Therefore, we conclude that this is an unusually high number of faulty modems.

6 0
3 years ago
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