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2 years ago

What is -2.3+4.2-3.4 step by step?

Mathematics

1 answer:

Anuta_ua [19.1K]2 years ago

7 0

Answer:

-1.5

Step-by-step explanation:

Simplify (Add -2.3 with -3.4) and get -5.7

[Add those using the assosiative property of addition]

Add 4.2 to the number and get -1.5. [it is a negative number because 5.7 is bigger than 4.2]

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Where is the removable discontinuity of f(x)=x+5/x^2+3x-10 located?

mario62 [17]

We are looking to find the point where the curve discontinued

Step 1: Factorise both numerator and denominator (if possible)
$\frac{x+5}{ x^{2} +3x-10}= \frac{(x+5)}{(x+5)(x-2)}$

Step 2: Recognise the common factor, which is $(x+5)$

Step 3: Equate the common factor to 0
$x+5=0$
$x=-5$

Answer: -5

3 0

2 years ago

Read 2 more answers

Factor the expression.<br> 2x + 8

IgorC [24]

Answer:

2x+8

2 is common

2(x+4)=0

Step-by-step explanation:

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2 years ago

Hello I need help on the 4 questions please help thank you:D

boyakko [2]

Step-by-step explanation:

1. simple interest

I= p × r × t

I = 1050 × 4.5 × 2

I = $9450

2. principal

p = I/(rt)

p= 22.50/ (3× 3)

p = 22.50/9

p = $2.5

3. simple interest

I= p × r × t

I = 500 × 5 × 3

I = $7500

4. time

first convert r to decimal

r= r/100, r= 3.5 / 100

r= 0.035

t = i/(pr)

t = 43.75/ (2500× 0.035)

t = 43.75/ 87.5

t = 0.5 year or 6 months

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2 years ago

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krok68 [10]

The answers would be

D
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6 0

2 years ago

Please help on 5 and 6

fgiga [73]

Noah is right because 75% of 10 is 7.5 and 10% of 30 also equals 7.5

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2 years ago