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3 years ago

Plz help me!!!! I have 2 questions for 20 points, be serious about this!

Mathematics

1 answer:

jok3333 [9.3K]3 years ago

8 0

Answer:

b d

Step-by-step explanation:

add then subtract the fractions

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Y = 4x - 3 What the answer

serg [7]

Answer:

what's the question, what is it asking for??

5 0

3 years ago

Solve the exponential equation: 3^2– ^x = 1

Flura [38]

$x = 2$

c.) x=2

<h2>hope it helps!</h2>

5 0

2 years ago

Raina must choose a number between 55 and 101 that is a multiple of 2,3 and 9. Write all the numbers that she could choose. If t

ziro4ka [17]

Answer:

72,90

Step-by-step explanation:

Since 9 is the biggest number so list multiples of 9 between 55- 101 range.

Which are 63, 72, 81, 90, 99. Any number that is a multiple of 9 is a multiple of 3 because 3x 3 = 9. 9 is a multiple of 3.

Any even number is a multiple of 2.

Only 72 and 90 are even numbers.

So 72 and 90 are numbers divisible by 2, 3, 9.

6 0

2 years ago

Write an expression to represent volume of the composite figure.

ohaa [14]

V1 + V2

V1 = 1*2*1 = 2

V2 = 5*2*2 = 20

V1 + V2
2+20
22

7 0

2 years ago

Please help me right away with these problems.

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

2 years ago