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3 years ago

10

A classmate thinks that solving a system by graphing gives an exact answer when the lines appear to cross at a grid point, but o

nly an approximate answer when they don't. Explain why this isn't true.

1 answer:

likoan [24]3 years ago

3 0

This isn't true because the exact answer of a system is where the lines cross each other, not where they cross a grid.

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The local rodeo has a circular Pin , with a diameter of 48 feet , in which keep the horses what is the circumference or the hors

Alchen [17]

Answer:

The circumference of the horse pin is 150.86 feet

Step-by-step explanation:

In this question, we are to calculate the circumference of the horse pin, given that the diameter is 48 feet.

Mathematically, the circumference can be calculated using the formula

C = 2 * pi * r

where r = D/2 = 48/2 = 24 feet

The circumference C is thus = 2 * 22/7 * 24 = 1056/7 = 150.86 feet

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3 years ago

98-x2=0 solve this with the quadratic formula

Mars2501 [29]

Answer:

x∈{-7√2, 7√2}

Step-by-step explanation:

$98-x^2=0\\\\-x^2+98=0\\\\a=-1\,,\ \ b=0\,,\ \ c=98\\\\x_1=\dfrac{-0-\sqrt{0^2-4\cdot(-1)\cdot98}}{2\cdot(-1)}=\dfrac{-\sqrt{4\cdot49\cdot2}}{-2}=\dfrac{-2\cdot7\sqrt{2}}{-2}=7\sqrt2\\\\x_2=\dfrac{-0+\sqrt{0^2-4\cdot(-1)\cdot98}}{2\cdot(-1)}=\dfrac{2\cdot7\sqrt{2}}{-2}=-7\sqrt2$

7 0

3 years ago

Umm can someone help? I’ll mark brainliest

aleksklad [387]

Answer:

the first is 70 and the second is 140

Step-by-step explanation:

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3 years ago

How is this number read out loud 0.034

Svetllana [295]

Answer:

0.034

Step-by-step explanation:

thirty-four thousandths

or

zero point zero three four

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3 years ago

Read 2 more answers

The sum of two numbers is 25. One number

Grace [21]

Answer: 9 & 7

Step-by-step explanation: 9(2)=18 18+7=25

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