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7nadin3 [17]
2 years ago
13

PLEASE HELP ME

Mathematics
1 answer:
OleMash [197]2 years ago
6 0

Answer:

wait do you still need the answer?

You might be interested in
I need help trying to figure this out I think I have and answer but I want to make sure.
yKpoI14uk [10]

Answer:

34

Step-by-step explanation:

The mean is calculated as

mean = \frac{frequency(midpoint)}{frequency}

let x be the missing frequency, then

Total frequency × midpoint

= (16 × 2) + 7x + (20 × 12) + (10 × 17) = 32 + 7x + 240 + 170 = 442 + 7x

Total frequency = 16 + x + 20 + 10 = 46 + x, thus

\frac{242+7x}{46+x} = 8.5 ( cross- multiply )

442 + 7x = 8.5(46 + x)

442 + 7x = 391 + 8.5x ( subtract 8.5x from both sides )

442 - 1.5x = 391 ( subtract 442 from both sides )

- 1.5x = - 51 ( divide both sides by - 1.5 )

x = 34

The missing frequency is 34

3 0
3 years ago
A square pyramid and a cube have the same total surface area. The width of the cube is 8 centimeters. The base of the pyramid is
azamat

Answer:

Step-by-step explanation:

surface area of cube = 6×8² = 384 cm²

lateral area of pyramid = surface area of pyramid - base area

= 384 - 8²

= 320 cm²

area of triangular face = 320/4 = 80 = ½(base)(slant height) = ½(8)(slant height)

slant height = 20 cm

6 0
2 years ago
. <br> Simplify by using the Distributive Property<br> 4(4f-2g)
Bad White [126]

Answer:

the answer is 16f-8g

6 0
3 years ago
Read 2 more answers
Can anyone help me with 2 and 3
Ede4ka [16]
2: 14+15d+9c
3: a.
ignore this I need 20 characters.:)))
3 0
3 years ago
The endpoints of AB are A(1,4) and B(5,-1). What are the coordinates of the point that divides AB in the ratio 2:3?
Arada [10]
<span><span>the answer would be C

</span> https://answers.yahoo.com/question/index?qid=20150420093325AAnAudN
here is what i found that could help you
</span>
8 0
2 years ago
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