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3 years ago

I need help on these!!!

Mathematics

2 answers:

Digiron [165]3 years ago

7 0

Answer:

1. -24

3. -48

5. 90

2. 16

4. -30

6. -25

Step-by-step explanation:

A positive and a negative multiplied = negative

negative and a negative = postiive

Reika [66]3 years ago

5 0

Answer:

Step-by-step explanation:

1. -4 * 6 = -24

2. -2 * -8 = 16

3. 12 * -4 = -48

4. -6 * 5 = -30

5. -10*-9= 90

6. -5 squared= 25

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True or False ?

Gnoma [55]

True the answer is true babes :)

4 0

3 years ago

What is the sum of the complex numbers 3 − 4i and 5 + 3i ?

Mandarinka [93]

Answer:

8 - i

General Formulas and Concepts:

Algebra I

Combining Like Terms

Algebra II

Standard Form: a + bi

Step-by-step explanation:

Step 1: Define

(3 - 4i) + (5 + 3i)

Step 2: Simplify

Combine like terms (Z): 8 - 4i + 3i
Combine like terms (i): 8 - i

7 0

3 years ago

A swimming pool at a park measures 9.75 meters by 7.2 meters.

neonofarm [45]

Answer:

Part a) The area of the swimming pool is $70.2\ m^2$

Part b) The total area of the swimming pool and the playground is $105.3\ m^2$

Step-by-step explanation:

Part a) Find the area of the swimming pool

we know that

The area of the swimming pool is

$A=LW$

where

L is the length side

W is the width side

we have

$L=9.75\ m\\W=7.2\ m$

substitute the values

$A=(9.75)(7.2)$

$A=70.2\ m^2$

therefore

The area of the swimming pool is $70.2\ m^2$

Part b) The area of the playground is one and a half times that of the swimming pool. Find the total area of the swimming pool and the playground

we know that

To obtain the area of the playground multiply the area of the swimming pool by one and a half

$\frac{1}{2}(70.2)=35.1\ m^2$

To obtain the total area of the swimming pool and the playground, adds the area of the swimming pool and the area of the playground

$70.2\ m^2+35.1\ m^2=105.3\ m^2$

therefore

The total area of the swimming pool and the playground is $105.3\ m^2$

6 0

3 years ago

Help me please lolll

Sergeu [11.5K]

Answer:

2.423

Step-by-step explanation:

Surface that is not water: 5.1 - 3.61 = 1.49

How many times water is bigger than not water: 3.61/1.49 = 2.423

4 0

2 years ago

What numbers does the square root of 125 fall between?

MA_775_DIABLO [31]

The square root of 125 is 11.18 so therefore it falls between 11 and 12

5 0

3 years ago

Read 2 more answers