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3 years ago

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Mathematics

1 answer:

Ket [755]3 years ago

7 0

1. 0.6

2. 10

3. -½

the answers are thrre ...

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Plssssssss help solve

Lana71 [14]

Answer:

cosine = adjacent/hypotenuse

cos A = 20/29 (choice: yellow)

Step-by-step explanation:

3 0

3 years ago

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some psychologists believe that a genius should be defined as anyone having an IQ over 140. If IQ scores are normally distribute

denis23 [38]

Answer:

61,239,550

Step-by-step explanation:

We let the random variable X denote the IQ scores. This would imply that X is normal with a mean of 100 and standard deviation of 17. We proceed to determine the probability that an individual chosen at random from the population would be a genius, that is;

Pr( X>140)

The next step is to evaluate the z-score associated with the IQ score of 140 by standardizing the random variable X;

$Pr(X>140)=Pr(Z>\frac{140-100}{17})=Pr(Z>2.3529)$

The area to the right of 2.3529 will be the required probability. This area from the standard normal tables is 0.009314

From a population of 6,575,000,000 the number of geniuses would be;

6,575,000,000*0.009314 = 61,239,550

6 0

3 years ago

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Después de 15 meses de haber prestado un capital al 5% de rédito, tengo que pagar de interés Q468.75. ¿Qué capital se ha prestad

Aleonysh [2.5K]

The capital borrowed, or the principal when the interest was Q468.75 is <u>Q7500</u>.

The principal P, amount borrowed, at a certain rate of interest R%, for a time of T years, giving an interest of I, can be calculated using the formula:

P = (I * 100)/(R * T).

In the question, we are asked to find the capital borrowed, that is, the principal, when the user pays Q468.75 after 15 months at 5% of income.

Thus, Interest (I) = Q468.75, rate of interest (R) = 5%, and time (T) = 15 months = 15/12 years = 1.25 years.

Thus, the principal P, can be calculated by substituting the values in the formula: P = (I * 100)/(R * T).

P = (468.75*100)/(5*1.25),

or, P = 46875/6.25,

or, P = 7500.

Thus, the capital borrowed, or the principal when the interest was Q468.75 is <u>Q7500</u>.

The provided question is in Spanish. The question in English is:

"After 15 months of having borrowed capital at 5% of income, I have to pay Q468.75 in interest. What capital has been borrowed?"

Learn more about Interest at

brainly.com/question/25793394

#SPJ1

5 0

1 year ago

What is the area of a rectangle that measures 4 cm by 12cm

Softa [21]

A = l*w
A = 4*12 = 48cm^2
The area of the rectangle is 48cm^2 (cm squared)

8 0

3 years ago

A coffee table is on sale for 20% off the original price of $115. If there is 7.5% sales tax, what is the final price of the cof

alekssr [168]

Answer:

98.9

Step-by-step explanation:

115 - 20% = 92
92 + 7.5% = 98.9

7 0

2 years ago

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Solve this picture included.​

Solve this picture included.