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3 years ago

What is the greatest number of right angles that a triangle can contain

Mathematics

2 answers:

SOVA2 [1]3 years ago

4 0

Answer: 1 right angle is the maximum

stich3 [128]3 years ago

4 0

Answer:

Just 1.

Step-by-step explanation:

The 3 angles in a triangle must add up to 180 degrees, and 2 * 90 = 180 so its not possible to have 2.

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Answer:

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Step-by-step explanation:

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3 years ago

How many qt are in a gallon

egoroff_w [7]

4 quarts in a gallon

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3 years ago

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Find the solution of w(-15-w)=0

inna [77]

Answer:

w(-15-w)= 0

w= 0 or (-15-w) = 0

Now,

-15-w =0

w= -15

So,The solution of w(-15-w) = 0

w= 0, -15

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3 years ago

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Identify the percent of change as increase or decrease of 138 to 75

RUDIKE [14]

138 x ? = 75
? = 75/138 = 0.544(3sf)
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2 years ago

Use the normal distribution of SAT critical reading scores for which the mean is 502 and the standard deviation is 116. Assume t

PSYCHO15rus [73]

Answer:

(a) 93.19%

(b) 267.3

Step-by-step explanation:

The population mean and standard deviation are given as 502 and 116 respectively.

Consider, <em>X</em> be the random variable that shows the SAT critical reading score is normally distributed.

(a) The percent of the SAT verbal scores are less than 675 can be calculated as:

$P(X$

Thus, the required percentage is 93.19%

(b)

The number of SAT verbal scores that are expected to be greater than 575 can be calculated as:

$P(X>575)=P(\frac{x-502}{116}>\frac{575-502}{116}\\P(X>575)=P(Z>\frac{575-502}{116})\\P(X>575)=P(Z>0.6293)\\P(X>575)=0.2673$

So,

Out of 1000 randomly selected SAT verbal scores, 1000(0.2673) = 267.3 are expected to have greater than 575.

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3 years ago