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ipn [44]
3 years ago
10

Simplify this expression

Mathematics
1 answer:
qaws [65]3 years ago
6 0

Answer:

10

Step-by-step explanation:

25-10+3-8

15+3-8

18-8

10

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Can you help me i got two wrong if I get one wrong I will have a falling grade
KIM [24]

Answer:

the bottom left is wrong

Step-by-step explanation:

if u add 40+5+7/10+1/100 it'll only equal to 45.71

5 0
2 years ago
Read 2 more answers
the length of a rectangle is 8cm more than the width and its area is 172cm2 .find the width of the rectabgle
nikdorinn [45]
l-the\ length\\l+8-the\ width\\A=172\ cm^2\\\\A=lengtf\cdot width\\\\subtitute\\\\l(l+8)=172\\\\l^2+8l=172\ \ \ |subtract\ 172\ from\ both\ sides\\\\l^2+8l-172=0\\a=1;\ b=8;\ c=-172\\\\\Delta=b^2-4ac\\\\\Delta=8^2-4\cdot1\cdot(-172)=64+688=752 > 0\\\\l_1=\dfrac{-b-\sqrt\Delta}{2a}\ and\ l_2=\dfrac{-b+\sqrt\Delta}{2a}\\\\\sqrt\Delta=\sqrt{752}=\sqrt{16\cdot47}=4\sqrt{47}\\\\l_1=\dfrac{-8-4\sqrt{47}}{2\cdot1}=-4-2\sqrt{47} < 0\\\\l_2=\dfrac{-8+4\sqrt{47}}{2\cdot1}=-4+2\sqrt{47} > 0\\\\The\ width:l+8=-4+2\sqrt{47}+8=4+2\sqrt{47}\\\\Answer:\boxed{length=(2\sqrt{47}-4)cm;\ width=(4+2\sqrt{47})cm}
length\approx9.71cm;\ width\approx17.71cm
4 0
3 years ago
If w= -1, x =6 and y= -3, find the following<br><br> 3w² - 5w + 1
drek231 [11]

Answer:

3

Step-by-step explanation:

3(1)² - 5(1) + 1

3x3 = 9

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9-6 = 3

8 0
3 years ago
The New Treasure-Seekers
svp [43]
A you never make a clown costume for a little brother / 1 tell is how ddi it oh dora said and

quit saying it every body else fault it




Ut no body fault all some time time ppl make mistake but you get better of 2 mistake get better


8 0
3 years ago
Helppppp meeeeeeeee pleaseeee!!!!
postnew [5]

Answer: oh boi this is gonna take a long time to type. hang in there.

Step-by-step explanation:

#1: Soooooo. A rule is used to find the age of Cassandra's mother no matter the age of Cassandra. Therefore, the answer to #1 is 2C + 9 = M where C is equal to the age of Cassandra.

#2: The rule 2C + 9 = M relates to this because the variale C represents Cassandra's age, the +9 represents her age plus nine is her Mother's age, the 2 in front of the variable C represents the doubling of Cassandra's age, and M represents her mother's age.  

#3: The rule IS the process that each student used to find her mother's age. This is how they are both related (the process and the rule).

#4: This is all you because I'm pretty sure this is from another problem you did or something.

#5: For a and b, try to find what x (the input) is done to ... to get y (the output). Look for patterns between the two numbers and look for a RULE that can be used for all. The number 0 is the most important when looking for the rule. :)

OH! MAKE SURE TO PUT THIS INTO YOUR OWN WORDS! (maybe you and i have a different way of speaking and this might get SUS)

7 0
3 years ago
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