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Sergio [31]
4 years ago
9

What is the value of the expression -c+(-d) when c=-3.5 and d= -12.8

Mathematics
1 answer:
g100num [7]4 years ago
7 0

Answer:

16.3

Step-by-step explanation:

-(-3.5) + (-(-12.8))

3.5+12.8= 16.3

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1) x² 2(x+y) - y^2 <br>2) x^4+ x^2y^2+ y^4​
spin [16.1K]

Answer: 1) Let's simplify step-by-step.

x22(x+y)−y2

Distribute:

=(x22)(x)+(x22)(y)+−y2

=x23+x22y+−y2

Answer:

=x23+x22y−y2

2)Let's simplify step-by-step.

x4+x2y2+y4

There are no like terms.

Answer:

=x4+x2y2+y4

5 0
3 years ago
Sarah cuts a piece of rope that is 4.5 feet long.
icang [17]

Answer:

4.5 feet = 1.5 yards

Step-by-step explanation:

1 yard equals 3 feet

Then:

1 ----- 3

x -----4.5

x = 4.5/3 = 1.5 yards

Hope this helps

3 0
2 years ago
At 3pm the temperature was 9 degrees .By 11pm ,it had dropped 31 degrees .What was the temperature at 11pm
o-na [289]

Answer:

-22

Step-by-step explanation:

9-31=-22

5 0
3 years ago
A stadium has 39 sections. there are 18 sections that each have 478 seats. The remaining sections each have 292 seats. If 13,528
vesna_86 [32]

Answer: 1,208 seats

Step-by-step explanation:

39-18= 21

18 x 478 = 8,604

21 x 292 = 6,132

8,604 + 6,132 = 14,736

14,736 - 13,528 = 1,208

6 0
3 years ago
A second-order linear differential equation for y(t) is said to be homogeneous if... every term involve either y or its derivati
swat32

Answer: Hello!

A second order differential equation has the next shape:

y''(t) + p(t)y'(t) + q(t)y(t) = g(t)

where p(t), q(t) and g(t) are functions of t, that can be constant numbers for example.

And is called homogeneus when g(t) = 0, so you have:

y''(t) + p(t)y'(t) + q(t)y(t) = 0

Then a second order differential equation is homogeneus ef every term involve either y or the derivatives of y.

4 0
3 years ago
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