2 years ago

Answer two questions about Systems

Mathematics

1 answer:

BigorU [14]2 years ago

7 0

Answer:

none

Step-by-step explanation:

i dont understand

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The formula for the area of a triangle is A=1/2bh , where b is the base of the

belka [17]

For the first question: The equation would be set up as 30=1/2(12x) Then solve for x. (Or just plug that formula into Desmos)

Answer: x=5

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3 years ago

Values for 24/25 ÷ 4/5.

lions [1.4K]

The answer is 1.2 hope this helped ;)

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2 years ago

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Runners in a long distance race start out going 6 kilometers east and then head north for the remainder of the race. The finish

Harrizon [31]

Answer:

Step-by-step explanation:

alright lets get started.

Please refer the diagram I have attached.

the runner traveled, six kilometers east.

Next, they turn to north and suppose they run x kilometers.

The starting and the ending points distance is 10 kilometers.

There will be a right triangle formed, we can find the value of x by using Pythagorean theorem.

$a^2+b^2=c^2$

$6^2+x^2=10^2$

$36+x^2=100$

Subtracting 36 from both sides

$x^2=100-36=64$

$x=8$

So, the runners travel 8 kilometers to the north. : answer

Hope it will help. :)

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3 years ago

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A quarter has a diameter of 2.4 centimeters. What is the area of the coin (round answer to nearest tenth)?

mafiozo [28]

Answer:

4.5

Step-by-step explanation:

The equation of an area of a circle is A=πr² where r is the radius.

The radius is also half the diameter. So the radius of the quarter is 1.2

A=π(1.2)²

A=π(1.44)

A=4.52389

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2 years ago

Which expression represents the number 5i4+2i3+8i2+−4 rewritten in a+bi form?

aniked [119]

Remember
i²=-1 so
i³=-i
i⁴=1

so
5i⁴+2i³+8i²-4
5(1)+2(-i)+8(-1)-4
5-2i-8-4
-7-2i is the form

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3 years ago

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