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2 years ago

The coefficient of x in the expression of(x+3) (x-1) is

Mathematics

1 answer:

kherson [118]2 years ago

3 0

Answer:

i think 4

Step-by-step explanation:

$x^{2} +4x-3$

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60 POINTS BRAINLIES

MaRussiya [10]

Answer:

see below

Step-by-step explanation:

a) median : re-arranged the numbers in order. i.e. min to max

gold: 147 , 147 , 175 , 206 , 212 , 227 , 263 , 275 , 440 , 1022

212 + 227 = 219.50

silver: 147 , 163 , 165 , 170 , 178 , 241 , 295 , 313 , 357 , 794

178 + 241 = 209.50

bronze: 151 , 169 , 179 , 187 , 193 , 260 , 289 , 325 , 349 , 704

193 + 260 = 226.50

b) mean : sum of all numbers divide by n, where n=10

gold: = (147 , 147 , 175 , 206 , 212 , 227 , 263 , 275 , 440 , 1022 ) / 10

= 311.40

silver: = (147 , 163 , 165 , 170 , 178 , 241 , 295 , 313 , 357 , 794 ) / 10

= 282.30

bronze: = (151 , 169 , 179 , 187 , 193 , 260 , 289 , 325 , 349 , 704 ) / 10

= 280.60

c) standard deviation on population (STDEV.P)

Australia = 16.44

china = 33.03

france = 19.74

germany = 30.21

great britain = 13.89

hungary = 12.04

italy = 11.44

soviet union = 48.46

sweden = 13.47

united states = 133.84

6 0

3 years ago

The sum of the measures of the angles of a triangle is 180. The sum of the measures of the second and third angles is five times

mafiozo [28]

Answer:

a = 30°

b = 70°

c = 80°

Step-by-step explanation:

Hi there !

a ; b ; c = angles

a + b + c = 180°

b + c = 5a

replace (b + c)

a + (b + c) = 180

a + 5a = 180

6a = 180

a = 30°

b + c = 180 - a

b + c = 150

c = b + 10

replace c

b + (b + 10) = 150

2b = 150 - 10

2b = 140

b = 70°

c = b + 10

c = 80°

Good luck !

3 0

3 years ago

Which best compares the pair of intersecting rays with the angle

madam [21]

Answer:

C)The rays extend infinitely, and the angle is made by rays which have a common endpoint

Step-by-step explanation:

A ray is a line segment having one end point while extending in the other/opposite direction

An angle is made by two lines(rays) with common end point (vertex)

So when an angle is formed by the pair of intersecting rays the following options are ruled out

A) rays cannot have two end points

B) As rays extends infinitely in one direction, so having number of points is wrong

D)angles do not have lines

the following is best explanation is C

The rays extend infinitely, and the angle is made by rays which have a common endpoint !

5 0

3 years ago

Given: ∠1 ≅ ∠9 Which lines must be parallel?

Debora [2.8K]

Answer: r and s because these are the lines that 1 and 9 are on

4 0

3 years ago

Read 2 more answers

What effect can be observed because of the gravitational pull between Earth and the moon.

Gwar [14]

Answer:

The moon's gravitational pull on the Earth is the main cause of the rise and fall of ocean tides.

Step-by-step explanation:

The moon's gravitational pull causes two bulges of water on the Earth's oceans—one where ocean waters face the moon and the pull is strongest and one where ocean waters face away from the moon and the pull is weakest.

Hope it helped!!

7 0

2 years ago

The coefficient of x in the expression of(x+3) (x-1) is​

The coefficient of x in the expression of(x+3) (x-1) is