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2 years ago

I will give 10 paypal if answered correctly

Mathematics

1 answer:

Reika [66]2 years ago

4 0

Answer:

1) x = 3

y = 42

2) x = 50

y = 70

Step-by-step explanation:

1) 12x + 6 = 14x

6 = 2x

x = 3

14(3) = y

42 = y

2) 2x + 10 + x + 20 = 180

3x + 30 =180

3x= 150

x=50

2(50)+10=110

110-180

y=70

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A ray cannot be perpendicular to a line. true or false? no guesses please

galina1969 [7]

Answer:

TRUE

Step-by-step explanation:

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3 years ago

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A company has a policy of retiring company cars; this policy looks at number of miles driven, purpose of trips, style of car and

vredina [299]

Answer:

2.35%

Step-by-step explanation:

Mean number of months (M) = 39 months

Standard deviation (S) = 10 months

According to the 68-95-99.7 rule, 95% of the data is comprised within two standard deviations of the mean (39-20 to 39+20 months), while 99.7% of the data is comprised within two standard deviations of the mean (39-30 to 39+30 months).

Therefore, the percentage of cars still in service from 59 to 69 months is:

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The approximate percentage of cars that remain in service between 59 and 69 months is 2.35%.

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2 years ago

I WILL GIVE BRAINLIST HELP PLEASE

il63 [147K]

Answer:

area- 55 perimeter - 24

Step-by-step explanation:

small rectangle =

5- 3 = 2

2 × 3 = 6cm²

big rectangle =

4 + 3 = 7

7 × 7 = 49cm²

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3 years ago

A rectangular playground is to be fenced off and divided in two by another fence parallel to one side of the playground. 452 fee

Troyanec [42]

Answer:

school building, so the fourth side does not need Fencing. As shown below, one of the sides has length J.‘ (in meters}. Side along school building E (a) Find a function that gives the area A (I) of the playground {in square meters) in

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Step-by-step explanation:

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3 years ago

Help solve 88 please

Fofino [41]

Answer:

The equation of the line is y = -2x + 7

Step-by-step explanation:

* Lets study how to make an equation of the line from two point

- If the line passes through points (x1 , y1) and (x2 , y2)

- The form of the equation is y = mx + c, where m is the slope of the

line and c is the y-intercept

- The rule of the slope is m = (y2 - y1)/(x2 - x1)

- The y-intercept means the line intersect the y-axis at point (0 ,c)

* Now lets solve the problem

∵ The line passes through points (-3 , 13) and (4 , -1)

- Let (-3 , 13) is (x1 , y1) and (4 , -1) is (x2 , y2)

∵ m = (y2 - y1)/(x2 - x1)

∴ m = (-1 - 13)/(4 - -3)

∴ m = (-14)/7 = -2

- Lets write the form of the equation

∵ y = mx + c ⇒ substitute the value of m

∴ y = -2x + c

- To find the value of c use one of the two points to substitute the

values of x and y in the equation

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∴ y = -2x + 7

* The equation of the line is y = -2x + 7

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2 years ago