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3 years ago

How do you solve this? I really don't understand...

Mathematics

1 answer:

maksim [4K]3 years ago

8 0

Answer:

MEAN 5.8 add all the points up then divide by the number of dots

MEDIAN 5 the middle of the data

MODE 5 most accruing one

RANGE 7 maximum minus minimum

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Evaluate if m=1 and n=2 what’s 15m/n+1-m^2+n

Jobisdone [24]

$\\ \sf\longmapsto \dfrac{15m}{n}+1-m^2+n$

$\\ \sf\longmapsto \dfrac{15(1)}{2}+1-(1)^2+2$

$\\ \sf\longmapsto \dfrac{15}{2}+3-1$

$\\ \sf\longmapsto \dfrac{15}{2}+2$

$\\ \sf\longmapsto \dfrac{15+4}{2}$

$\\ \sf\longmapsto \dfrac{19}{2}$

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3 years ago

Veronica drove 294 miles and used 12 gallons of gasoline, how many gallons of gas would it take her to drive 490 miles?

Alekssandra [29.7K]

Answer:

Step-by-step explanation:

u make a proportion and solve for x:

294/12 = 490/x

12 x 490 = 5880

5880/294 = 20

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3 years ago

Read 2 more answers

Find the area. 5.cm 5 cm 3 cm 8 cm

Talja [164]

Answer: 600

Step-by-step explanation:

5x5=25

3x8=24

25x24=600

7 0

3 years ago

Read 2 more answers

3x^2-12+(x-4)(2-x)-(x^2-4x+4)

bogdanovich [222]

Answer:

x² + 10x - 24

Step-by-step explanation:

3x² - 12 + (x - 4)(2 - x) - (x² - 4x + 4)

= 3x² - 12 + (2x - x² - 8 + 4x) - x² + 4x - 4

= 3x² - 12 + 2x - x² - 8 + 4x - x² + 4x - 4

= x² + 10x - 24

4 0

3 years ago

Part B

Troyanec [42]

Answer:

Part A) The length of a straight line between the school and the Fire Station is $4.6\ miles$

Part B) The length of a straight line between the school and the hospital is $2.1\ miles$

Step-by-step explanation:

The complete question in the attached figure

Let

The positive x-coordinates ----> East

The positive y-coordinates ----> North

The negative x-coordinates ----> West

The negative y-coordinates ----> South

take the point A (0,0) as the Middle School (reference point)

Part A) we have

Town Hall is located 4.3 miles directly east of the Middle School

The coordinates of Town Hall are B(4.3,0)

The Fire Station is located 1.7 miles directly North of Town Hall

The coordinates of Fire Station are C(4.3,1.7)

What is the length of a straight line between the school and the Fire Station?

Remember that

the formula to calculate the distance between two points is equal to

$d=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}}$

we have

A(0,0) and C(4.3,1.7)

substitute

$d=\sqrt{(1.7-0)^{2}+(4.3-0)^{2}}$

$d=\sqrt{(1.7)^{2}+(4.3)^{2}}$

$d=4.6\ miles$

Part B) we have that

The hospital is 3.1 miles west of the fire station

The coordinates of the hospital are D(4.3-3.1,1.7)

D(1.2,1.7)

What is the length of a straight line between the school and the hospital?

Remember that

the formula to calculate the distance between two points is equal to

$d=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}}$

we have

A(0,0) and D(1.2,1.7)

substitute

$d=\sqrt{(1.7-0)^{2}+(1.2-0)^{2}}$

$d=\sqrt{(1.7)^{2}+(1.2)^{2}}$

$d=2.1\ miles$

7 0

3 years ago