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IceJOKER [234]
3 years ago
14

Question no 2 please​

Mathematics
1 answer:
ELEN [110]3 years ago
3 0

Answer:

x=0 y=-3

Step-by-step explanation:

2x-y-3 =0

4x+y+3=0

Add the two equations together to eliminate y

2x-y-3 =0

4x+y+3=0

------------------------

6x +0y+0=0

6x = 0

Divide each side by 6

6x/6 =0/6

x =0

Now we can find y

2x-y-3 =0

2(0)-y -3 =0

-y-3 =0

Add y to each side

-y+y -3=0+y

-3 =y

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Which of the following statements is not true?
alekssr [168]
A. 1 1/2 is equal to 1.5, so this is true
B. 3/4 is equal to 0.75 and 7/8 is equal to 0.875, this is true
C. -1.5 is less than both -1 and 1.5, this is false
D. 0.01 is less than 0.1, this is true

So the answer to your question is C
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3 years ago
Read 2 more answers
F(x)=2x+3/4x+5<br>find f(-9)<br>​
mylen [45]

\implies {\blue {\boxed {\boxed {\purple {\sf { f(-9)= 0.48}}}}}}

\large\mathfrak{{\pmb{\underline{\orange{Step-by-step\:explanation}}{\orange{:}}}}}

f(x) =  \frac{2x + 3}{4x + 5} \\

For f(-9), put "-9" for every value of "x".

↬f( - 9) =  \frac{2( - 9) + 3}{4( - 9) + 5}\\

↬ f(-9) =  \frac{ - 18 + 3}{ - 36 + 5} \\

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↬ f(-9)=  \frac{15}{31}\\

↬f(-9)=  0.48\\

\bold{ \green{ \star{ \red{Mystique35}}}}⋆

6 0
3 years ago
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9,16=7 <br> 4,36=8 <br> 121,81=20 <br> 25,49=?
Ilia_Sergeevich [38]

Answer:

12.

Step-by-step explanation:

We have been given format of different numbers. We are asked to find the missing value for our given format.

9,16=7

Taking square root of 9 and 16 we will get,

\sqrt{9}=3

\sqrt{16}=4

3+4=7

Similarly, we can see that by taking the square root of all the on the left side of equation and adding them we get right side of equation.

\sqrt{4}=2

\sqrt{36}=6

2+6=8

\sqrt{121}=11

\sqrt{81}=9

11+9=20

Upon taking square root of 25 and 49 we will get,

\sqrt{25}=5

\sqrt{49}=7

5+7=12

Therefore, the missing number of our given sequence is 12.

5 0
4 years ago
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HELP ME PLEASE
Dahasolnce [82]

Answer:

She changed the symbols in the first two problems because they were divided by a negative number whereas she shouldn't have changed the symbol in the last problem as it was not divided by a negative number and so the sign remains the same.

4 0
3 years ago
A random sample of 121 bottles of cologne showed an average content of 4 ounces. It is known that the standard deviation of the
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Answer:

option D is correct, 4 ounces.

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The point estimate of the mean content of the bottles is average value.

What 4 ounces means is the correct answer since this is the mean, therefore the option D is correct

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4 years ago
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