3 years ago

please help! write an expression for the 15th partial sum of the series 5/3 + 4/3 + 1 + ... using summation notation.

Mathematics

1 answer:

larisa86 [58]3 years ago

3 0

Answer:

Step-by-step explanation:

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marta [7]

Answer:

y=-(x+3)^2

y=-x^2-6x-9

Step-by-step explanation:

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3 years ago

Find the y value for the point that spilts GH in half if point G is laocated at (-3, 5) and point H is located at (0, -2).

kiruha [24]

Answer:

y value: 1.5

Step-by-step explanation:

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3 years ago

The Freeman family is barbecuing veggie burgers, corn cobs, and mushroom caps in their local park. If 3/8 of the items barbecued

algol [13]

Answer:

7/24

Step-by-step explanation:

Let

total items barbequed = 1

Veggie burgers = 3/8

Corn cobs =1/3

Mushroom caps = x

Veggie burgers + corn cobs + x = 1

3/8 + 1/3 + x = 1

9+8 /24 + x = 1

17/24 + x = 1

x= 1 - 17/24

=24-17 /24

= 7/24

x = 7/24

Fraction of barbequed items that are mushroom's is 7/24

7 0

3 years ago

Scores on an English test are normally distributed with a mean of 31.5 and a standard deviation of 7.3. Find the score that sepa

vladimir1956 [14]

If $X$ is a random variable representing test scores, then the 41st percentile is the score $x$ such that $P(X\le x)=0.41$ . Transform $X$ to the random variable $Z$ that follows the standard normal distribution via $X=31.5+7.3Z$ :

$P(X\le x)=P\left(\dfrac{X-31.5}{7.3}\le\dfrac{x-31.5}{7.3}\right)=P\left(Z\le\dfrac{x-31.5}{7.3}\right)=0.41$

The $z$ -score for the 41st percentile is about -0.2275, so

$\dfrac{x-31.5}{7.3}\approx-0.2275\implies\boxed{x\approx29.8}$

6 0

4 years ago

What statement describes the expression 10 +1/4× (5+3)-3

sasho [114]

Answer:

The answer would be 9.

Step-by-step explanation:

10 + 1/4 x (5 + 3) - 3

10 + 1/4 x (8) - 3

10 + 2 - 3

12 - 3

8 0

3 years ago