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nlexa [21]
3 years ago
7

−0.75 − (-2/5) + 0.4 + (-3/4)

Mathematics
1 answer:
Hoochie [10]3 years ago
8 0

Answer: -0.7

Step-by-step explanation:

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2x^(2) + xy + 2y^(2) = 5, (1, 1)<br> (ellipse)
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<span>2<span>x2</span>+xy+2<span>y2</span>=5</span>Implicit differentiation yields<span>4x+y+x<span>y′</span>+4y <span>y′</span>=0</span>Solve for <span>y′</span><span>.

answer is- y = 4x+ y /5x</span>
3 0
2 years ago
How do i solve divide 5/8 by 50%
Ede4ka [16]
50% is \frac{50}{100}
We have two ways to do this, pick your favor:
either by fractions:
\frac{5}{8} ÷ \frac{1}{2}
(\frac{50}{100} =  \frac{1}{2}
Multiply by the reciprocal of \frac{1}{2} which is 2(flip it)

\frac{5}{8} × 2 = \frac{5}{4} = 1.25

Or change them to decimals:
\frac{5}{8} = 0.625
\frac{50}{100} = 0.5

0.625 ÷ 0.5

0.5 I 0.625
multiply by 10 to make it easier to divide(it still gives us the same answer)
0.5 × 10 = 5
0.625 × 10 = 6.25
     1.25
5 I 6.25
    -5
     12
    -10
       25
      -25
         0

0.625 ÷ 0.5 = 1.25

7 0
2 years ago
A city manage must predict the population of the city between the years 2000
bezimeni [28]

Answer:

the answer to predict the city's population is 2050

7 0
2 years ago
Pop said, "I have three grandchildren on my knee: Vera, Chuck and Dave. "Chuck is three years younger than Dave.
Ostrovityanka [42]
Okie dokie buddy pokie
8 0
3 years ago
The product of two numbers is 450. The first number is half the second number. which equation can be used to find x, the greater
sveticcg [70]
Xy=450
x=1/2(y)

1/2 (y^2)=450
y^2=900
Answer : y=30 x=15
6 0
3 years ago
Read 2 more answers
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