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matrenka [14]
2 years ago
12

Can u plz help me with this

Mathematics
2 answers:
7nadin3 [17]2 years ago
8 0

Answer:

x = 61, y = 29

Step-by-step explanation:

29+x = 90

x = 61

x + y = 90

y + 61 = 90

y = 29

Studentka2010 [4]2 years ago
5 0
X=61
90-29=61
y=29
90-61=29
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Plz help if you know THANK YOU SO MUCH?BIG POINTS ON THIS TO FOR WHO EVER ANSWERS
nikdorinn [45]
D, because of the arrows going both directions, you know part of it,
( -  \infty \:  x) \: ( x  \:  \infty )
and then you just have to put in the values from the number line. The first arrow ends at zero with a bracket, and brackets mean the number is included. So now you have,

( - infinity, 0] ( x, infinity)

Then, your last value is at 1/2 with a parentheses, indicating it is not included. So, your final answer would be,

( - infinity, 0] ( 1/2 , infinity)

{infinity is always written with a parentheses in domain}

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pantera1 [17]
The answer is between A or b
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3 years ago
What is the total surface area of the pyramid in square feet?
Elis [28]
Base is 12 feet square so 12 *12 = 144 square feet

each triangle has base of 12 feet and height of 8 feet
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3 years ago
Find each percent of change. Round to the nearest whole percent. State
taurus [48]

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Step-by-step explanation:3704

4 0
2 years ago
Symposium is part of a larger work referred to as Plato's Dialogues. Wishart and Leach† found that about 21.4% of five-syllable
notsponge [240]

Complete Question

ymposium is part of a larger work referred to as Plato's Dialogues. Wishart and Leach† found that about 21.4% of five-syllable sequences in Symposium are of the type in which four are short and one is long. Suppose an antiquities store in Athens has a very old manuscript that the owner claims is part of Plato's Dialogues. A random sample of 498 five-syllable sequences from this manuscript showed that 129 were of the type four short and one long. Do the data indicate that the population proportion of this type of five-syllable sequence is higher than that found in Plato's Symposium? Use = 0.01.  

a. What is the value of the sample test statistic? (Round your answer to two decimal places.)  

b. Find the P-value of the test statistic. (Round your answer to four decimal places.)

Answer:

a) Z=2.45

b) P Value=0.0073

Step-by-step explanation:

From the question we are told that:

Probability of Wishart and Leach P=21.4=>0.214

Population Size N=498

Sample size n=12

Therefore

P'=\frac{129}{498}

P'=0.2590

Generally the Null and Alternative Hypothesis is mathematically given by

H_0:P=0.214

H_a:=P>0.214

Test Statistics

Z=\frac{P'-P}{\sqrt{\frac{P(1-P)}{n}}}

Z=\frac{0.2590-0.214}{\sqrt{\frac{0.214(1-0.214)}{498}}}

Z=2.45

Therefore P Value is given as

P Value =P(Z\geq 2.45)

P Value =1-P(Z\leq 2.45)

P Value =1-0.99268525

P Value=0.0073

7 0
2 years ago
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