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nekit [7.7K]
3 years ago
6

What is the value of 4 x minus 7 when x = 4? 1 9 16 23

Mathematics
1 answer:
Naddik [55]3 years ago
8 0

Answer:

9

Step-by-step explanation:

4x-7

x=4

4(4)-7

16-7= 9

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Use the quadratic formula to solve x2 – 3x - 2 = 0.
r-ruslan [8.4K]

Answer:

x = 2 , 1

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Foci of ellipse of 3x2 + y2 =9
Oksi-84 [34.3K]

Answer:

x=√-1/3 y^2 +3 or x=-√-1/3 y^2 +3

Step-by-step explanation:

Let's solve for x.

3x2+y2=9

Step 1: Add -y^2 to both sides.

3x2+y2+−y2=9+−y2

3x2=−y2+9

Step 2: Divide both sides by 3.

3x^2/3= -y^2+9/3

x^2=-1/3 y^2 +3

x=√-1/3 y^2 +3 or x=-√-1/3 y^2 +3

Hope it helped!

8 0
3 years ago
6.) -2x + y = -1<br><br> X Y<br> -4<br> -3<br> -2<br> 1<br> 0
MrRa [10]

Answer:

Step-by-step explanation:

i ASSUME THE QUESTION IS TO DETERMINE Y?  

Rearrange the equation  to y = 2x - 1 and solve for each value of x

<u>X</u>  <u>Y</u>

-4  -9

-3  -7

-2  -5

1   1

0  -1

7 0
2 years ago
Help me please...!!!
Bogdan [553]
Answer is B.
8^1/3 = (2^3)^1/3 = 2
8 0
3 years ago
PLEASE HELP ANSWER 4 AND 5.
kumpel [21]

4) The ratio of lemons to cups of sugar = 2/3 or 2:3

5) The ratio of cups of sugar to cups of water = 3/14 or 3:14

Hope that helps

8 0
3 years ago
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