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atroni [7]
3 years ago
12

There are 10 m of thread on the reel. She use 210 cm. In centimeters. How much is left on the reel

Mathematics
2 answers:
castortr0y [4]3 years ago
5 0

Answer:

The length of the thread which is left on the reel is 790 cm. Used = 210 cm.

Step-by-step explanation:

Reil [10]3 years ago
3 0

Answer:

23.11 ft

Step-by-step explanation:

idk if that is right sry

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Math Quiz Question! Measuring segments and Angles
user100 [1]
I think it's 115

180-65= 115=<BCD
6 0
3 years ago
Can you plz help me with this, because I don’t know how to do this and can u plz explain how to do it
Alecsey [184]

Answer:

Step-by-step explanation:

You can start this in may ways but let's start by isolating one of the parenthesis:

x (x² - 5) = - (x - 3)

x³ - 5x = -x + 3 (here I multiplied x for what's inside the parenthesis and the "minus" signal by the other parenthesis which was (x - 3))

x³ - 5x + x = 3

x³ -4x = 3

x³ -4x -3 = 0 (now this right here is a "depressed cubic equation" and it's one of the toughest sit of all time, so good luck with that, you might wanna take a look at this:

ytb/watch?v=rNDy2ZFvG1E

or maybe I'm doing something wrong and it's simpler than that, but whaterver...)

4 0
2 years ago
pls help if you answer correctly i will give you brainliest and i will give a reward of a lot of points you just have to check b
Ierofanga [76]

Answer:

15.5 i believe

Step-by-step explanation:

7 0
3 years ago
Solve each equation by factoring,<br>x² - 2x - 15 = 0​
valina [46]

Answer:

x=−3 or x=5

Step-by-step explanation:

x2−2x−15=0

Step 1: Factor left side of equation.

(x+3)(x−5)=0

Step 2: Set factors equal to 0.

x+3=0 or x−5=0

x=−3 or x=5

7 0
3 years ago
Work out the size of the interior angle of a regular 18-sided polygon.
qaws [65]

Answer:

160°

Step-by-step explanation:

The formula below gives the measure of an interior angle of a regular polygon of n sides.

[(n - 2)180]/n

[(18 - 2)180]/18

16(10)

160

Answer: 160°

4 0
2 years ago
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