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3 years ago

Solve:

Mathematics

2 answers:

alekssr [168]3 years ago

8 0

Answer:

Length = 30, width = 20

Step-by-step explanation:

perimeter = 100

length = 10 more than the width

width = ?

100/4 = 25

25 + 25 = 50

50 - 10 = 40/2 = 20

20 +10 = 30 cm

Elena-2011 [213]3 years ago

5 0

Answer:

Length: 30cm, Width: 20cm

Step-by-step explanation:

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Find the amount of time in years. I=$100, P=$200, r=10%

lara31 [8.8K]

Answer:

How many years????????

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2 years ago

(02.01 LC)

ExtremeBDS [4]

Answer:

Yes it is a function

Step-by-step explanation:

We have to check the ordered pairs to find out if given relation is a function or not.

In an ordered pair, the first element represents the input and the second element represents the output.

The set of inputs is domain and output is range.

For a relation to be function, there should be no repetition in domain i.e there should be unique pairs of input and output.

In the given relation, the domain is {3,5,-1,-2}.

No element is repeated hence it is a function ..

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3 years ago

The Earth has a diameter

mrs_skeptik [129]

Answer:

L = 24,873.6 miles

Step-by-step explanation:

Length of the Circumference

Given a circle of radius r, the length of the circumference, or line surrounding the shape is:

$L =2\pi\cdot r$

The Earth has a diameter of 7,917.5 miles. The radius is half the diameter:

r=7,917.5/2=3,958.75 miles

Assuming a plane flies around the equator at ground level, the distance it would travel is:

$L =2\pi\cdot 3,958.75\ miles$

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4 0

2 years ago

Solve for x use the completing the square method x^2+6x=5

Mrac [35]

Answer:

$x_{1} =-3 +\sqrt{14} \\\\x_{2} =-3 -\sqrt{14}$

Step-by-step explanation:

$x^{2}$ +6x-5=0

we divide the coefficient of the X by half :

in this case: 6/2 = 3 , then we do the following

The result obtained is raised to square power: 3^2=9

we sum and subtract by 9 to maintain the balance of the equation:

$x^{2}$ +6x+9-9-5=0

we have:

$(x+3)^{2}$ -9-5=0

$(x+3)^{2}$ = 14

lets apply square root on both sides of the equation:

$\sqrt{(x+3)^{2}}=\sqrt{14}$

we know:

$\sqrt{a^{2}} = abs(a)$

so we have:

abs(x+3)= $\sqrt{14}$

from where two solutions are obtained

$x_{1} + 3 =\sqrt{14} \\\\x_{2} + 3 =-\sqrt{14}$

finally we have:

$x_{1} =-3 +\sqrt{14} \\\\x_{2} =-3 -\sqrt{14}$

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3 years ago

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Sedaia [141]

Answer:

12 cups

Step-by-step explanation:

there are 4 cups in 1 quart. You multiply both of them by 3 so there are 12 cups in 3 quarts

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3 years ago

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