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3 years ago

Here is a set of signed numbers: 7, -3, 1/2, -0.8, 0.8, -1/10, -2

Mathematics

2 answers:

oee [108]3 years ago

8 0

Answer:

-3, -2, -0.8, -1/10, 1/2, 0.8, 7

Liono4ka [1.6K]3 years ago

5 0

Answer:

Least to greatest order:-3, -2, -0.8, -1/10 (or -0.1), 1/2 (or 0.5), 0.8, 7

Hope this helps!

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Can someone pls pls help me?

vova2212 [387]

Answer:

i think 88

Step-by-step explanation:

(it's been a while since I've done this so I'm not too sure it's correct)

The formula we need to use is

2πr(angle/360)

we need the radius (r)

To get r we need angle AES

180-80= 100

using the equation from before

88=2πr*(100/360)

raidus: 50.42

Then to get the length CD we need angle DEC

180-80=100

2π*50.42*(100/360)=88

there probably was some kind of shortcut we could've used to figure this out faster but whatever

7 0

3 years ago

A boat traveled 153 miles downstream and back. The trip downstream took 9 hours. The trip back took 17 hours. What is the speed

fgiga [73]

Speed of boat in still water is 13 miles per hour and speed of current is 4 miles per hour

<h3><u><em>Solution:</em></u></h3>

Let s = the speed of the boat in still water in miles/hour

Let c = the speed of the current in miles/hour

<em><u>Formula to remember:</u></em>

If the speed of a boat in still water is s miles/hr and the speed of the current is c miles/hr, then:

Speed downstream = (s + c) miles per hour

Speed upstream = (s - c) miles per hour

<em><u>Given:</u></em>

boat traveled 153 miles downstream and back

distance for downstream = 153 miles

distance for upstream = 153 miles

time taken for downstream = 9 hours

Time taken for upstream = 17 hours

<em><u>The relation between speed, distance and time is given as:</u></em>

$distance = speed \times time$

<em><u>For downstream:</u></em>

$153 = (s + c) \times 9$

$s + c = \frac{153}{9} = 17$

s + c = 17 ------- eqn 1

<em><u>For upstream:</u></em>

$153 = (s - c) \times 17\\\\s - c = \frac{153}{17} = 9$

s - c = 9 ------- eqn 2

<em><u>Let us solve eqn 1 and eqn 2 to find values of "s" and "c"</u></em>

Add eqn 1 and eqn 2

s + c = 17

s - c = 9

(+) -------------

2s = 26

Substitute s = 13 in eqn 1

13 + c = 17

c = 17 - 13 = 4

Thus the speed of boat in still water is 13 miles per hour and speed of current is 4 miles per hour

8 0

3 years ago

How many 4/10+7/100=

Mashutka [201]

The answer is 47/100 or it could also be 0.47

7 0

3 years ago

Read 2 more answers

Some hot dogs come in packages of 8.why would a baker of hot dog buns package 7 hot dog buns to a package

Nadusha1986 [10]

Not sure what this has to do with maths, but probably because it would mean that people would have to buy 2 packs of hot dog buns just to get 8 hot dog buns, which makes him more money?

7 0

3 years ago

What is the slope of the line that passes through the points (10, -6)(10,−6)

BARSIC [14]

Answer:

Undefined

Step-by-step explanation:

The formula for slope is $m=\frac{y2-y1}{x2-x1}$

So use the x's and y's from the given points to solve for the slope

(10, -6) (10, -6)

$m=\frac{-6 - (-6)}{10-10}$

$m=\frac{0}{0}$

The slope for this line would be undefined because a number cannot be divided by 0

5 0

3 years ago