3 years ago

Q1.How many significant figures does 39018 have

Mathematics

1 answer:

beks73 [17]3 years ago

7 0

Answer:

The answer is:

Q1: 5

Q2: 5

Q3: 2

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How do i solve for <br> (2x/5)+1=13/5

NNADVOKAT [17]

Answer:

x = 4

Step-by-step explanation:

$\frac{2x}{5} +1 = \frac{13}{5}$
$\frac{2x+5}{5} = \frac{13}{5}$ divide both sides by 5
2x + 5 = 13 subtract 5 from both sides
2x = 8 divide both sides by 2
x = 4

5 0

3 years ago

Eric wants to send a package to his mother. If he chooses UPS, the fixed express fee is 10 dollars and each kilogram costs 2 dol

o-na [289]

Answer:

10kg

Step-by-step explanation:

For UPS;

express fee = $10

If one kg costs $2, then x kg of package will coat $2x

Total cost of shipping xkg of package will be 10+2x

For FedEx;

Fixed express fee = $20

If one kg costs $1, then x kg of package will coat $1x

Total cost of shipping x kg of package is 20+x

If the total costs of the two options are the same, then;

10+2x = 20+x

2x-x = 20-10

x = 10.

Hence Eric sent 10kg of package

8 0

3 years ago

The diagram shows a right-angled triangle.

Agata [3.3K]

Answer:

$\sin( \alpha ) = \frac{8}{14} = \frac{4}{7} \\ \\ \alpha = 34.84 \: degee$

6 0

3 years ago

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Liz wants to buy a shirt for $25. How

yawa3891 [41]

Answer:

its $0.05 or 5 cents

Step-by-step explanation:

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4 years ago

What is the domain and range for the following function and its inverse? f(x) = -x + 5

iren2701 [21]

Answer:

Domain: $\mathbb{R}$

Inverse: $f^{-1}(x) = -x + 5$

Step-by-step explanation:

Since this is a linear function, the domain and range is simply the set of real numbers.

The inverse is obtain by switching the places of x and y, then solving for y.

Here,

y = -x + 5

So switching x and y,

x = -y + 5

Solving for y again,

y = -x + 5

Thus,

$f^{-1}(x) = -x + 5$

5 0

4 years ago

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