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Rufina [12.5K]
3 years ago
10

Just a short answer please help :( the top

Mathematics
2 answers:
bonufazy [111]3 years ago
6 0
26 is to 100 as x is to 82

26/100 = x/82
Shkiper50 [21]3 years ago
3 0
26/100 = x/82 I think that's what you want.
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Point C is between D and E and DE = 91 what is DC?
jok3333 [9.3K]

Answer:

DC=6

Step-by-step explanation:

all is shown and pictured

7 0
3 years ago
Plzzzzz answer this question about density mass and volume!!!!!!!!!
nataly862011 [7]

Answer:

13.896 kg

Step-by-step explanation:

You can find the mass of the bar by first finding the volume.

V = BH

where B = area of the base (the trapezium), and

H = height (distance trapezium between bases)

The area of a trapezium is

A = (b1 + b2)h/2

where b1 and b2 are the lengths of the bases of the trapezium (the parallel sides), and

h = the altitude of the trapezium (distance between the bases of the trapezium)

V = (b1 + b2)h/2 * H

V = (12 cm + 6 cm)(5 cm)/2 * 16 cm

V = 720 cm^3

The volume of the bar is 720 cm^3.

Now we use the density and the volume to find the mass.

density = mass/volume

mass = density * volume

mass = 19.3 g/cm^3 * 720 cm^3

mass = 13,896 g

Now we convert grams into kilograms.

1 kg = 1000 g

mass = 13,896 g * (1 kg)/(1000 g)

mass = 13.896 kg

Answer: 1.3896 kg

6 0
3 years ago
A set of data with 100 observations has a mean of 267. There are six outliers in the data set, which have a mean of 688. If the
Mnenie [13.5K]
X*94 +688*6  = 267*100
94x+4128=26700     
94X=22572    /94
X=240.128
C is the closest answer
3 0
3 years ago
Read 2 more answers
Numbers like 10 100 1000 and so on are called
Afina-wow [57]
Powers of ten! is the answer
4 0
3 years ago
Read 2 more answers
Plss help!<br>Question: Find a,b and c​
Roman55 [17]

Answer:

See below, please

Step-by-step explanation:

The right:

{(y + c)}^{2}  - b \times (x + a) \\  = ( {y}^{2}  + 2yc +  {c}^{2} ) - bx - ba  =

= {y}^{2}  - bx + 2cy +  {c}^{2}  - ab

The left:

=  {y}^{2}  - 7x - 18y + 109

So, after comparing the right side and the left side of this equation, we know

1)

b = 7

2)

2c =  - 18 \\ so \\ c =  - 9

3)

{c}^{2}  - ab = 109

So,

a =  \frac{ {c}^{2}  - 109}{b}  =  \frac{ { (- 9)}^{2}  - 109}{7}  =  \frac{ - 28}{7}  =  - 4

6 0
2 years ago
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