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2 years ago

Substitution Property of Equality: If AB = 20, then AB + CD

Mathematics

1 answer:

otez555 [7]2 years ago

5 0

Answer:

CD + 20

Step-by-step explanation:

If AB = 20, then AB + CD = 20 + CD

Answer: CD + 20

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Find the slope (m) and y-intercept (b) of each representation be

scoray [572]

Answer:

m= -2

b = 3

Step-by-step explanation:

Take two points from line.

(0,3) and (1,1)

now slope(m) = (1-3)/(1-0)

m = -2

now

y = mx+b

or, 3 = -2×0+b

or, 3 = 0+b

so, b = 3

5 0

2 years ago

Geometric Series assistance

Levart [38]

we have been asked to find the sum of the series

$\sum _{n=1}^5\left(\frac{1}{3}\right)^{n-1}$

As we know that a geometric series has a constant ratio "r" and it is defined as

$r=\frac{a_{n+1}}{a_n}=\frac{\left(\frac{1}{3}\right)^{\left(n+1\right)-1}}{\left(\frac{1}{3}\right)^{n-1}}=\frac{1}{3}$

The first term of the series is $a_1=\left(\frac{1}{3}\right)^{1-1}=1$

Geometric series sum formula is

$S_n=a_1\frac{1-r^n}{1-r}$

Plugin the values we get

$S_5=1\cdot \frac{1-\left(\frac{1}{3}\right)^5}{1-\frac{1}{3}}$

On simplification we get

$S_5=\frac{121}{81}$

Hence the sum of the given series is $\frac{121}{81}$

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3 years ago

Can someone help me with a series of questions?

lora16 [44]

Answer:

yes

Step-by-step explanation:

send the questions....

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3 years ago

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Use the diagram below & your knowledge of inscribed angles of a quadrilateral to label the measures of EACH inscribed angle

Marrrta [24]

Answer:

HELLOOOO

Step-by-step explanation:

Sorry I can't help but I hope you got it

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2 years ago

A swimming pool is open for 7.5 hours during the day. The pool keeps one lifeguard on duty at a time.l, with each of their shift

8090 [49]

The answer is 5 shifts a day

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3 years ago

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