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mojhsa [17]
3 years ago
14

Write a sentence to represent the equation 4 m equals -8

Mathematics
2 answers:
Lisa [10]3 years ago
8 0
Four multiples by a number will equal negative eight
scZoUnD [109]3 years ago
7 0

Answer:

see below

Step-by-step explanation:

4m = -8

m = -8 ÷ 4

m = - 2

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Write the series using summation notation.<br><br> 4 + 8 + 12 + 16 + 20+ . . . + 80
zhannawk [14.2K]

Answer:

\sum ^{20} _{n \to \11} 4n

Step-by-step explanation:

In order to write the series using the summation notation, first we need to find the nth term of the sequence formed. The sequence generated by the series is an arithmetic sequence as shown;

4, 8, 12, 16, 20...80

The nth term of an arithmetic sequence is expressed as Tn = a +(n-1)d

a is the first term = 4

d is the common difference = 21-8 = 8-4 = 4

n is the number of terms

On substituting, Tn = 4+(n-1)4

Tn = 4+4n-4

Tn = 4n

The nth term of the series is 4n.

Since the last term is 80, L = 4n

80 = 4n

n = 80/4

n = 20

This shows that the total number of terms in the sequence is 20

According to the series given 4 + 8 + 12 + 16 + 20+ . . . + 80 , we are to take the sum of the first 20terms of the sequence. Using summation notation;

4 + 8 + 12 + 16 + 20+ . . . + 80  = \sum ^{20} _{n \to \11} 4n

4 0
3 years ago
The jet flies 1.5 times faster than the plane with a propeller. The propeller plane flies 165.7 miles per hour. How fast does th
lozanna [386]
The propeller-driven airplane has over the jet is that maximum thrust is ... efficiency at the higher altitudes is lost (turbofan engines are ... pilot is worse off than the propeller pilot. For ... applicable speed limit at all times.
6 0
2 years ago
. -5, 10, 7, 10, 9, 0, 1, 9, -1, 5 Work out the mean.
bezimeni [28]

Answer:

6

Step-by-step explanation: because its online

4 0
3 years ago
Supply the missing numbers in the following sequences 4, 9, 14, _____, 24, 29, _____
Galina-37 [17]

Answer:

4,9,14,19,24,29,34

that the exact number

6 0
3 years ago
Ben takes out a personal loan of £1200 with a simple interest rate of 20% for a term of 3 years how much is the total cost of th
lilavasa [31]

Answer:

$1920

Step-by-step explanation:

Original amount: £1200 x Simple interest rate: 0.2 x number of years: 3 = 720

Add Original onto simple interest

£1200 + £720 = £1920

Total Cost of personal loan after 3 years = £1920

5 0
2 years ago
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