2 years ago

Help me zearn please

Mathematics

1 answer:

Alenkinab [10]2 years ago

4 0

Answer:

Radio= 7cm

Circumference = 43.96cm

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Math g8 - giving brainly if correct. show work.

d1i1m1o1n [39]

Answer:

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Step-by-step explanation:

12 / 0.48 = 25

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2 years ago

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Is 50 tens 9 ones <,>,= 49 tens 35 ones

kati45 [8]

50 tens and 9 ones is less than 49 tens and 35 ones because 50 tens is 500 + 9 is 509, whereas 49 tens is 490 + 35.

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3 years ago

The sum of three consecutive odd numbers is 39. What is the smallest of these numbers?

saw5 [17]

Answer:

Possibly 3.

Step-by-step explanation:

A consecutive odd number that adds up to 39 and is the smallest (not including 1) is 3.

13, 3's equals to 39.

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3 years ago

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MA_775_DIABLO [31]

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3 years ago

Factor the quadratic equation below to reveal the solutions. X^2+4x-21=-9

a_sh-v [17]

Answer:

x = 3 and x = -7

Step-by-step explanation:

The given quadratic equation is $x^2+4x-21=0$ . We need to find the solution of this equation.

If the equation is in the form of $ax^2+bx+c=0$ , then its solutions are given by :

$x=\dfrac{-b\pm \sqrt{b^2-4ac} }{2a}$

Here, a = 1, b = 4 and c = -21

Plugging all the values in the value of x, such that :

$x=\dfrac{-b+ \sqrt{b^2-4ac} }{2a},\dfrac{-b- \sqrt{b^2-4ac} }{2a}\\\\x=\dfrac{-4+ \sqrt{(4)^2-4\times 1\times (-21)} }{2(1)},\dfrac{-4- \sqrt{(4)^2-4\times 1\times (-21)} }{2(1)}\\\\x=3, -7$

So, the solutions of the quadratic equation are 3 and -7.

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3 years ago