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3 years ago

The expression 12+x+4

Mathematics

1 answer:

Verdich [7]3 years ago

3 0

Answer:

16+x

Step-by-step explanation:

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A line has slope -1. It passes through the point Q(2, -n) and R(4, -3). What is the value of n?

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Answer:

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3 years ago

when three or more numbers are multipiled the product is the same regardless of the order of the multiplicands

BlackZzzverrR [31]

Answer:

Associative property of multiplication.

Step-by-step explanation:

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3 years ago

What do we mean by the value of an expression?

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We have learned that, in in an algebraic expression, letters can stand for numbers. When we substitute a specific value for each variable, and then perform the operations, it's called evaluating the expression. Let's evaluate the expression 3y + 2y when 5 = y.

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3 years ago

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viktelen [127]

Q.34

$\sum\limits_{k=1}^{\infty}420\left(1.002\right)^{k-1}$

The infinite geometric series is converges if |r| < 1.

We have r =1.002 > 1, therefore our infinite geometric series is Diverges

Answer: c. Diverges, sum not exist.

Q.35

$\sum\limits_{k=1}^{\infty}-5\left(\dfrac{4}{5}\right)^{k-1}$

The infinite geometric series is converges if |r| < 1.

We have r = 4/5 < 1, therefore our infinite geometric series is converges.

The sum S of an infinite geometric series with |r| < 1 is given by the formula :

$S=\dfrac{a_1}{1-r}$

We have:

$a_1=-5\left(\dfrac{4}{5}\right)^{1-1}=-5\left(\dfrac{4}{5}\right)^0=-5\\\\r=\dfrac{4}{5}$

substitute:

$S=\dfrac{-5}{1-\frac{4}{5}}=-\dfrac{5}{\frac{1}{5}}=-5\cdot\dfrac{5}{1}=-25$

Answer: c. Converges, -25.

4 0

3 years ago

Olegator [25]

Answer:

5.89 feets

Step-by-step explanation:

Arc length :

L = θ/ 360° * 2πr

Diameter = 15 ; Radius, r = 15 / 2 = 7.5

θ = 45°

L = (45/360) * 2*3.14 * 7.5

L = 0.125 * 2 * 3.14 * 7.5

L = 5.89 feets

3 0

3 years ago