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alisha [4.7K]
3 years ago
8

Answer all of these 50 points and brainliest

Mathematics
2 answers:
Andreas93 [3]3 years ago
7 0

7. -9 5/8

8. 3/14

9. 1

10. -2 7/8

11. 18/31

12. -16/27

1. -9/10

2. 1 17/21

3 -57/14

4. 29/30

5. 3 9/10

6. 5 17/24

Brainliest please

Stella [2.4K]3 years ago
6 0
It already got answered F
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Use the distributive property to rewrite each expression. -5(3-h)
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Answer:

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Step-by-step explanation:

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The first term in a geometric series is 64 and the common ratio is 0.75. Find the sum of the first 4 terms in the series.
maks197457 [2]

Answer:

195.25

Step-by-step explanation:

Consider geometric series  S(n) where initial term is a

So S(n)=a+ar^1+...ar^n

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S(n)=a(1+r+r^2...+r^n)

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S(n)r=a(r+r^2+r^3...+r^n+r^n+1)

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S(n)(r-1)=a(r^n+1  -1)

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Now use the formula for the problem

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3 years ago
9 × a number is 4500. what is the number?
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Which phrases below best describe the equation x - 240 = 91? (Select all)
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Use set-builder notation to describe the following sets: (a) {1,2,3,4,5,6,7} (b) {1, 10, 100, 1000, 10000} (c) {1,1/2, 1/3, 1/4,
Alja [10]

Answer:

A) The set builder notation is: {n | n∈Z, 1≤n≤7}.

B) The set builder notation is: \{10^x | x=0,1,2,3,4\}

C) The set builder notation is: \{\frac{1}{n} | n\in z\}

D) The set builder notation can be: \{x\ \in R | x=x^3\ and\ x\neq 1\}

Step-by-step explanation:

Consider the provided information,

We need to use set-builder notation to describe the following sets.

(a) {1,2,3,4,5,6,7}

Here, the number are integer starting from 1 to 7.

Thus, the set builder notation is: {n | n∈Z, 1≤n≤7}.

(b) {1, 10, 100, 1000, 10000}

The above set can be written as:

\{1, 10, 100, 1000, 10000\}=\{10^0, 10^1, 10^2, 10^3, 10^4\}

Thus, the set builder notation is: \{10^x | x=0,1,2,3,4\}

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Here the numerator is 1 for each term but denominator is natural number.

Thus, the set builder notation is: \{\frac{1}{n} | n\in z\}

(d) {0}

The set builder notation can be: \{x\ \in R | x=x^3\ and\ x\neq 1\}

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