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3 years ago

What is the sum of -5 + (-3)

Mathematics

2 answers:

ira [324]3 years ago

6 0

Answer:

-8

Step-by-step explanation:

Both the numbers are negative so you add them together and keep the negative sign

sweet [91]3 years ago

4 0

Answer:

-8

Step-by-step explanation:

when negative and positive meet, the negative dominates the positive thereby making it negative.

-5 + (-3)

-5 - 3

-8

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Jay created a model of a building from two rectangular prism. One building has a volume of 15 Cubic inches. If the model had a t

ivann1987 [24]

Answer:

19 in.³

Step-by-step explanation:

We have been given that Jay created a model of a building from two rectangular prism. One building has a volume of 15 Cubic inches. The model had a total volume of 34 in.³ We are asked to find the volume of the other building.

We know that total volume of model will be equal to sum of volume of two buildings.

$\text{Volume of model}=\text{Volume of 1st building}+\text{Volume of 2nd building}$

$34\text{ in}^3=15\text{ in}^3+\text{Volume of 2nd building}$

$34\text{ in}^3-15\text{ in}^3=15\text{ in}^3-15\text{ in}^3+\text{Volume of 2nd building}$

$19\text{ in}^3=\text{Volume of 2nd building}$

Therefore, the volume of the other building is 19 in.³

8 0

4 years ago

Which sequence can be defined by the recursive formula f (1) = 4, f (n + 1) = f (n) – 1.25 for n ≥ 1?

asambeis [7]

Answer:

4, 2.75, 1.5, 0.25, - 1, - 2.25, ...............

Step-by-step explanation:

Using the recursive formula with f(1) = 4, then

f(2) = f(1) - 1.25 = 4 - 1.25 = 2.75

f(3) = f(2) - 1.25 = 2.75 - 1.25 = 1.5

f(4) = f(3) - 1.25 = 1.5 - 1.25 = 0.25

f(5) = f(4) - 1.25 = 0.25 - 1.25 = - 1

f(6) = f(5) - 1.25 = - 1 - 1.25 = - 2.25

Sequence is 4, 2.75, 1.5, 0.25, - 1, - 2.25, .......

8 0

4 years ago

Given that 2sin^2 theta + sin theta -1 = 0, find the two values for sin theta.

Lisa [10]

2sin^2 θ + sin θ - 1 = 0
2sin^2 θ + 2sin θ - sin θ - 1 = 0
2sin θ(sin θ + 1) - 1(sin θ + 1) = 0
(2sin θ - 1)(sin θ + 1) = 0
2sin θ - 1 = 0 or sin θ + 1 = 0
sin θ = 1/2 or sin θ = -1

The two values of sin θ are 1/2 and -1

8 0

3 years ago

Find m∠QPR..........

dexar [7]

Hey there! :)

Answer:

m∠QPR = 25°.

Step-by-step explanation:

Given:

m∠QPS = 40°

m∠RPS = 8x + 7°

m∠QPR = 9x + 16°

m∠QPS = m∠RPS + m∠QPR, therefore:

40° = 8x + 7° + 9x + 16°

Combine like terms:

40° = 17x + 23°

Subtract 23° from both sides:

17° = 17x°

Divide both sides by 17:

x = 1°

If m∠QPR = 9x + 16°, substitute in 1 for 'x':

9(1) + 16 = 9 + 16 = 25°.

3 0

3 years ago

Read 2 more answers

3:10 = 3/10=N/100<br> help asap

My name is Ann [436]

Answer:

N = 30

Step-by-step explanation:

3: 10 = 3/10 = 0.3

0.3 * 100 = 30 = N

7 0

3 years ago

Read 2 more answers

What is the sum of -5 + (-3)​

What is the sum of -5 + (-3)