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lidiya [134]
3 years ago
7

8.4kg plus 3.25kg equals

Mathematics
1 answer:
igomit [66]3 years ago
4 0

Answer:

11.65kg

Step-by-step explanation:

8.4kg + 3.25kg

11.65kg

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(1,-2),(-2,-5) find the slope and show me how u got it please​
stealth61 [152]
Answer: 1
y=1x-3
m=-3/-3=-1/-1=1
3 0
2 years ago
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2 GEOMETRY QUESTIONS!!<br><br> Please explain and give answer. Thanks.
Rom4ik [11]
NQS= 30

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7 0
3 years ago
Annie found that 57 students in her school knew French and 23 of those students knew Spanish, as well. There were 11 students wh
V125BC [204]

Answer:

Table C is the correct option.

Step-by-step explanation:

We are given,

Number of students which knew French = 57

Number of students which knew both French and Spanish  = 23

Number of students which knew Spanish but not French = 11

Number of students which knew neither French nor Spanish = 4

So, we get that,

Number of students not knowing French = 57 - 23 = 34

Hence, the table for the given situation is,

                              Knew Spanish    Did not know Spanish    Total

Knew French                  23                          34                         57

Did not know French      11                             4                           15

Total                               34                             38                        72

Thus, option C is correct.

7 0
3 years ago
Read 2 more answers
2x-7=8x-47-(3x-14)/2
jok3333 [9.3K]
2x - 7 = 8x - 47 - (3x - 14) / 2
combine like terms
0= 6x - 40 - (3x-14)/2
(3x-146) / 2
isolate x
x=22/3

your final answer would be x=22/3


5 0
3 years ago
If(a²-1) x²+(a-1)x+a²-4a+3=0 is an identity in x, then find the value of a​
PtichkaEL [24]

Answer:

Step-by-step explanation:

(a^2-1)x^2+(a-1)x+a^2-4a+3=0\\\\Calculate\ and\ identify\ the\ polynomials\\\\\Longleftrightarrow\ a^2x^2-x^2+ax-x+a^2-4a+3=0\\\\\Longleftrightarrow\ a^2x^2+ax+a^2-4a+3=x^2+x+0\\\\\Longleftrightarrow\ \left\{\begin{array}{ccc}a^2&=&1\\a&=&1\\a^2-4a+3&=&0\\\end{array} \right.\\\\\Longleftrightarrow\ \left\{\begin{array}{ccc}(a-1)(a+1)&=&0\\a-1&=&0\\(a-1)(a-3)&=&0\\\end{array} \right.\\\\\\We\ must\ exclude\ a=-1\ and\ a=3\ (not\ solution)\\\Longrightarrow\ a=1\\

6 0
2 years ago
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