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Trava [24]
3 years ago
14

Please can I have some help with this histogram question

Mathematics
1 answer:
sergeinik [125]3 years ago
6 0

Answer:

Median = 116.

First quartile = 102.

Step-by-step explanation:

There is a total of 280 scores so the median will be the 140th score.

The first box gives 26 , second 34 = 60

The 3rd box contains 100  giving a total of 160 so the median lies in this third box.

140 - 26 - 34 = 80..

That gives a value of 80 / 5 = 16.

The median is  100 + 16 = 116.

The lower quartile is the 70th score

26 + 34 + 10 = 70.

So it is 100 + 10/5 = 102.

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Determine if (x+1) is a factor 4x^2 + 2x - 5Use synthetic division
ikadub [295]

Given

4x^2+2x-5

Divide it by (x+1) using synthetic division, as shown below

The green line is a minus sign.

Thus,

\Rightarrow4x^2+2x-5=(x+1)(4x-2)-3

Therefore, since the remainder is different than zero, (x+1) is not a factor of 4x^2+2x-5

6 0
1 year ago
The scale of a map is 1 inch = 60 miles. Find the actual distance if the distance on the distance on the map is 3 1/2 inches.
laila [671]

Answer:

  • 210 miles

Step-by-step explanation:

The scale is

  • 1 in = 60 miles

Find the distance of equivalent to 3 1/2 in

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5 0
2 years ago
The slant height is used to find the volume of a square pyramid. true or false
alexandr1967 [171]
The answer is false.

For a square pyramid, the volume is calculated by 1/3*B*h. The height should touch the tip and lie perpendicular to the base. Slant height is used for surface area, not volume.
5 0
3 years ago
You buy the following materials for the new extension. Calculate the cost of the bricks and cement and then work out the total c
bogdanovich [222]

<u>Answer:</u>

Cost of sand = £150

Cost of bricks =  £157.5

Cost of cement = £134

Total cost = £441.50

<u>Step-by-step explanation:</u>

We are given that:

2 tonnes of sand  is for £75.00 per tonne,

20 bags of cement  are for £6.70 per bag,

350 bricks at 45p each,

So, 2 tonnes of sand  at £75.00 per tonne = 2 * £75.00 = £150.00

20 bags of cement  at £6.70 per bag = 20 * £6.70 = £134.00

350 bricks at 45p each = 350 * £0.45 = £157.50

Therefore, the total cost of all the materials = £150 + £134 + £157.5 = £441.50

7 0
3 years ago
Which statements are accurate about the dilation? Check all that apply. The dilation is a reduction. The scale factor is between
ludmilkaskok [199]

Answer:

A,B,D

Step-by-step explanation:

Trust me just did it on edge

4 0
3 years ago
Read 2 more answers
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