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Drupady [299]
3 years ago
14

What is the value of the expression? 3 131 3 152

Mathematics
1 answer:
Anettt [7]3 years ago
3 0
Is there suppose to be a image before I don’t get it.
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843 to the nearest 100
Ray Of Light [21]
It is 800 because the 4 can not tell the what to do so that it is
3 0
3 years ago
Use the quadratic formula to solve the equation <br> X^2+9X+20=0
lions [1.4K]

Answer:

x=-4

x=-5

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Please help me ASAP?!!
Blababa [14]

Answer:

(0,-5) and (-4,3)

Step-by-step explanation:

The given equations are

\left \{ {{x^2+y^2=25} \atop {2x+y=-5}} \right.

Make y the subject in the second equation;

y=-2x-5

Substitute into the first equation;

x^2+(-2x-5)^2=25

Expand:

x^2+4x^2+20x+25=25

x^2+4x^2+20x+25-25=0

5x^2+20x=0

5x(x+4)=0

\Rightarrow x=0,x=-4

When x=0,

y=-2(0)-5=-5

This gives; (0,-5)

When x=-4

y=-2(-4)-5=3

This gives (-4,3)

7 0
3 years ago
Read 2 more answers
-6 (X -7) +6 (X +5) = 73
AleksAgata [21]

Answer:

No Solution.

Step-by-step explanation:

-6(x-7)+6(x+5)=73

-6x+42+6x+30=73

72=73

no solution

4 0
3 years ago
Jim's car repair charges $50 plus $16 for every pint of oil. Sam's car repair charges $80 plus $14 for every pint of oil. At how
vova2212 [387]

Answer:

5 pints of oil for 8 dollars

Step-by-step explanation:

1.65 dollars for 1 pint

3.4/2=1.7 dollars for 1 pint

8/5=1.6 dollars for 1 pint

17.6/10=1.76 dollars for 1 pint

33/20=1.65 dollars for 1 pint

3 0
3 years ago
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