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Masja [62]
2 years ago
7

The temperature increased from (-3) degrees to (+12) degrees on Friday what was the temperature change over the course of the da

y
Mathematics
1 answer:
Elanso [62]2 years ago
6 0

Answer:

+15 degrees

Step-by-step explanation:

-3

-2

-1

0

1

2

3

4

5

6

7

8

9

10

11

12

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I need help with my math practice problems
vovangra [49]
I’m getting 61/24 I’m sorry if it’s wrong.

3 0
3 years ago
Which of the following is equivalent to the complex number -8(7i - 3i^2)
Leni [432]

Answer:  B) -56i - 24

This is the same as -24 - 56i

=============================================

Explanation:

The 'i' refers to the imaginary number \sqrt{-1}

In other words, i = \sqrt{-1}

Squaring both sides gets us i^2 = -1

So,

x = -8(7i - 3i^2)\\\\x = -8(7i - 3(-1))\\\\x = -8(7i + 3)\\\\x = -8(7i) -8(3)\\\\x = -56i -24 \ \ \text{ .... Answer: Choice B}\\\\x = -24 - 56i\\\\

The result is in the form a+bi where a = -24 is the real part and b = -56 is the imaginary part.

7 0
2 years ago
Solve for t. You must write your answer in fully simplified form.<br> -19 = 7t
a_sh-v [17]

Answer:

-2.71

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Which of these numbers is composite? 3,5,19,71,85
user100 [1]

Answer:

85

Step-by-step explanation:


4 0
3 years ago
Read 2 more answers
A cylinder has a radius of 8 meters and a height of 4 meters. .
Novay_Z [31]
<h2><u>Solution</u> :-</h2>

Given : Radius of cylinder = 8 m

Height = 4 m

Volume of cylinder = πr²h cu. units

= 22/7 × 8 × 8 × 4 m³

= 804.57 m³ (approx.)

Curved surface area = 2πrh sq. units

= 2 × 22/7 × 8 × 4 m²

= 201.14 m² (approx.)

Total surface area = 2πr(r + h) sq. units

= 2 × 22/7 × 8 (8 + 4) m²

= 2 × 22/7 × 8 × 12 m²

= 603.43 (approx.)

4 0
3 years ago
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