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Natasha_Volkova [10]
3 years ago
14

Help me please it’s asking to find the slope

Mathematics
1 answer:
Natalka [10]3 years ago
3 0

Step-by-step explanation:

3) The equation of the graph is given by,

y =  - 4

So, slope = 0 option A

4)The line passes through two given points in the fig. , (3,2) and (4,-1)

slope of the graph is given by

\frac{y2 - y1}{x2 - x1}  =  \frac{ -  1 - 2}{4 - 3}  =  \frac{ - 3}{1}  =  - 3

option D

5)

y =  - x

General equation in slope -intercept form

y = mx + c

where, m is the slope and c is the y-intercept

Here, in this case m= -1

option C

6)

y = x + 2

slope of the graph = 1

option C

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Two sides of a triangle are equal in length and double the length of the shortest side. The perimeter of the triangle is 36 inch
chubhunter [2.5K]

Answer:

Two equal sides = 14.4 inches each

Shortest side = 7.2 inches

Step-by-step explanation:

a + b + c = 36

a = b

a = 2c

then:

c = a/2

a + a + a/2 = 36

2a + a/2 = 36

4a/2 + a/2 = 36

5a/2 = 36

a = 2*36/5

a = 72/5

a = 14.4

a = 2c

14.4 = 2*c

c = 14.4/2

c = 7.2

a = b

b = 14.4

Check:

14.4 + 14.4 + 7.2 = 36

3 0
3 years ago
Can anybody help me with all this pls
julia-pushkina [17]
Example

6.

3/8+1/4+__=1

1/4 is the same like 2/8

3/8+2/8=5/8

5/8+__=1

1 is the same like 8/8

5/8+__=8/8

8/8-5/8=_

8/8-5/8=3/8


Blank field-> 3/8
4 0
3 years ago
Can someone please help with question 4?
kirill115 [55]
7 4/5 multiply 4/5 by 2 which will be 7 8/10+ 12 1/10 whigh will end up as 19 9/10
3 0
3 years ago
two trains leave the station at the same time, one heading west and the other east. the westbound train travels at 95 miles per
Alinara [238K]
Remark
They are travelling in opposite directions. Their distances will be added until that distance = 462 miles.

You need only add the r*t values together. You do not need to find the distance.

Givens 
d = 462 miles
r1 = 115 mph
r2 = 95 mph
t = the time each was traveling.

Formula
r1 * t   +  r2*t = d

Substitute and solve
95 * t   +   115 * t = 462   Add the like terms on the left.
210 * t  = 462    Divide by 210
t = 462 / 210
t = 2.2 hours.

t = 2 1/5 hours

t = 2 hours  and 12 minutes 
All three answers are the same.

4 0
3 years ago
Sugar canes have lengths X that are normally distributed with mean 365.45 cm and standard deviation 4.9 cm what is the probabili
Gemiola [76]

Answer:

<em>The probability of the length of a randomly selected Cane being between 360 and 370 cm  P(360 ≤X≤370)    = 0.6851</em>

Step-by-step explanation:

<u>step(i)</u>:-

<em>Let 'X' be the random Normal variable</em>

<em>mean of the Population = 365.45</em>

<em>Standard deviation of the population = 4.9 cm</em>

<em>Let X₁ =  360</em>

<em></em>Z= \frac{x-mean}{S.D}= \frac{360-365.45}{4.9}<em></em>

<em>Z₁ = -1.112</em>

<em>Let X₂ =  370</em>

<em></em>Z= \frac{x-mean}{S.D}= \frac{370-365.45}{4.9}<em></em>

<em>Z₂ = 0.911</em>

<u><em>Step(ii</em></u><em>):-</em>

<em>The probability of the length of a randomly selected Cane being between 360 and 370 cm</em>

<em>                   P(x₁≤x≤x₂) =    P(z₁≤Z≤z₂) </em>

<em>                P(360 ≤X≤370)   =    P(-1.11≤Z≤0.911)</em>

<em>                                      =    P(Z≤0.911)-P(Z≤-1.11)</em>

<em>                                      =   0.5 +A(0.911) - (0.5-A(1.11)</em>

<em>                                        =    0.5 +A(0.911) - 0.5+A(1.11)</em>

<em>                                       =     A(0.911) + A(1.11)</em>

<em>                                     =    0.3186 + 0.3665</em>

<em>                                      = 0.6851</em>

<em>The probability of the length of a randomly selected Cane being between 360 and 370 cm  P(360 ≤X≤370)    = 0.6851</em>

<em></em>

<em></em>

5 0
2 years ago
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