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4 years ago

At 7 p.m,the temperature was 10 °

1 answer:

3 0

It went from 10 to -2, so you need to find the difference. The way you'd do this is: 10 - (-2). Do you know how to subtract a negative number from a positive number?

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Simplify. multiple choice

vfiekz [6]

The answer is (d) i’m pretty sure

4 0

3 years ago

Add and subtract positive and negative decimals

Semenov [28]

You would add and subtract them like a normal whole number, make sure to link up the decimals. You can use 0's as place holders if you need to. If you have two negatives your answer would be negative. When you subtract / add decimals just add them together. A positive plus a positive would be positive. If you have a positive plus a negative, subtract them and go with the sign of the greater number.

5 0

3 years ago

Find the center, vertices, and foci of the ellipse with equation x squared divided by 400 plus y squared divided by 625 = 1

Inessa05 [86]

Answer:

x^2/400 + x^2/625

(x-0)^2/400) +(y-0^2/625)

x^2=400

X=sqrt. 400

x = 20

y^2=625

y = sqrt. 625

y= 25

a^2-c^2=b^2

sqrt 400-625 = c

20-25=c

The correct answer is c=-5

(-5,0)

(5,0)

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Help ASAP!!!!! A. 1/4 B. 4 C. - 1/4 D. –4

Gemiola [76]

Answer:

D. -4

Step-by-step explanation:

7 0

3 years ago

On a coordinate plane, a piecewise function has 3 lines. The first line has an open circle at (negative 9, negative 2), continue

Arte-miy333 [17]

Answer: D: x = (-9, 0) U (0, 4) U (4, 8)

Step-by-step explanation:

Line 1: y = -2 where -9 < x < 0

Line 2: y = 2)x + 1 where 0 < x < 4

Line 3: y = -(1/2)x + 6 where 4 < x < 8

Domain represents the x-values. Since all of them are open dots, the intervals are strictly less than (<).

-9 < x < 0 and 0 < x < 4 and 4 < x < 8 is the union of these intervals

-9 < x < 0 U 0 < x < 4 U 4 < x < 8

Interval Notation: D: x = (-9, 0) U (0, 4) U (4, 8)

6 0

3 years ago