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3 years ago

Help 60points algebra

Mathematics

1 answer:

Luba_88 [7]3 years ago

3 0

ANSWER:

x³ – 5x² + 3x – 15
x²(x – 5) + 3(x – 5)
(x² + 3)(x – 5)

So, <u>Correct choice</u> - [C] (x² + 3)(x – 5).

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Day, everything at a store is on sale. The store offers a 20% discount.

Nutka1998 [239]

Answer:

$14.40

Step-by-step explanation:

$18-20%=$14.40

4 0

2 years ago

The pupils followed the teacher to visit a fruit farm last week. There were 5190 mangosteens and apples in the farm. There were

nlexa [21]

Answer:

4230 apples

Step-by-step explanation:

5190-960=4230

5 0

3 years ago

Maria and Katy have string Maria's is 6 cm longer that Katy's. When they put both of the strings together the total is 84 How lo

butalik [34]

Answer:

Maria's string is 45 cm long and Katy's string is 39 cm long

Step-by-step explanation:

Let's call the size of Maria's string X, and the size of Katy's string Y.

So, using the information from the problem, we can formulate a system of equations:

If Maria's string is 6 cm longer than Katy's, so:

X = Y + 6

If the strings together have 84 cm, so:

X + Y = 84

The first equation can be rewritten as X - Y = 6

Summing up both equation, we have that:

2X = 90

X = 45

Using X value in the first equation, we have that:

45 = Y + 6

Y = 39

So, Maria's string is 45 cm long and Katy's string is 39 cm long

7 0

3 years ago

I need help on this pleas,what is 9 ÷ 1/5

Mekhanik [1.2K]

Answer:

Step-by-step explanation:

Flip the fraction, 1/5 to 5/1, and reverse the equation to a multiplication problem.

$1/5 \rightarrow 5/1\\9 \cdot 5/1 = 45$

Let me know if you have questions or concerns.

8 0

1 year ago

What is the sum of the first five terms of a geometric series with a1=6 and r=1/3?

Anuta_ua [19.1K]

The sum of a geometric sequence is:

s(n)=a(1-r^n)/(1-r), s(n)=nth sum, a=initial value, r=common ratio, n=term #

In this case we are told that a=6 and r=1/3 so:

s(n)=6(1-(1/3)^n)/(1-1/3)

s(n)=6(1-(1/3)^n)/(2/3)

s(n)=9(1-(1/3)^n), so the sum of the first 5 term is:

s(5)=9(1-(1/3)^5))

s(5)=9(1-(1/243))

s(5)=9(242/243)

s(5)=2178/243

s(5)=242/27

s(5)=8 26/27 ...if you wanted an approximation s(5)≈8.96 to the nearest hundredth...

3 0

3 years ago