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larisa [96]
3 years ago
11

What is the sum of -4 1/2 + 3 14

Mathematics
1 answer:
Evgen [1.6K]3 years ago
7 0

Answer:

-1 1/4

Step-by-step explanation:

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Rational, irrational numbers
liberstina [14]
Page from ready workbook, it’s about rational numbers
5 0
3 years ago
Is 3 to the negative 1 power times 3 to the negative 1 power equal to 3 to the 1 power?
iren2701 [21]
To make the exponent positive, make a fraction. 1/3 * 1/3. This is 0.1 repeating. 3^1 is 3. So the answer is no.
3 0
3 years ago
-k+3k combined like terms to create an equivalent expression
Murrr4er [49]

Answer:

2k

Step-by-step explanation:

Add:

-k + 3k

or

-1k + 3k

2k

(You have to add -1 + 3)

Hope this helps :)

5 0
3 years ago
Read 2 more answers
What is the measurement of angle 1 plz help me !
Evgen [1.6K]

Answer:

ANGLE 1 = 40°

Step-by-step explanation:

angle 1 = angle 2 ------(alternate interior angles)

2x + 20 = 3x + 10

20 - 10 = 3x - 2x

x = 10.

Angle 1 = 2x + 20 = 2(10) + 20 = 20 + 20 = 40°.

HOPE IT HELPS!!!

6 0
2 years ago
This is the third time and i a really annoyed as i am having my time wasted and points
muminat

Answer: A) 20.9 ; B) 34years

Step-by-step explanation:

Given the following :

AGE (X) - - - - - - - 19 - -20 - - - 21 - - - 22 - - - 23

FREQUENCY (F) - 2 - - 3 - - - - 1 - - - - 4 - - - - 1

A)

MEAN(X) = [AGE(X) × FREQUENCY (F)] ÷ SUM OF FREQUENCY

F*X = [(19 * 2) + (20 * 3) + ( 21 * 1)+(22 * 4)+(23 * 1)]

= 38 + 60 +21 + 88 + 23 = 230

SUM OF FREQUENCY = 2 + 3 + 1 + 4 + 1= 11

MEAN(X) = 230 / 11

X = 20.9

B)

WHEN A NEW PLAYER WAS ADDED :

MEAN (X) = 22

Let age of new player = y

Sum of Ages = 19 + 19 +20 + 20 + 20 + 21 + 22 + 22 + 22 + 22 + 23 + y

Number of players = 11 + 1 = 12

Mean(x) = sum of ages / number of players

New mean (x) = 22

x = (230 + y) / 12

22 = (230 + y) / 12

Cross multiply

264 = 230 + y

y = 264 - 230

y = 34 years

4 0
3 years ago
Read 2 more answers
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