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3 years ago

A=34.5. B=29.04. C= 204.7 D= 18.83

Mathematics

1 answer:

ahrayia [7]3 years ago

5 0

The answer is B.) 29.04

you find c and then add it to a and b

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Jack has 10 more than twice as many baseball cards b than

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Answer: C (110)

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3 years ago

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guapka [62]

Answer:

Step-by-step explanation:

abs ( -2(5-(-1)) / 3 )

= abs ( -2(5+1) / 3 )

= abs ( -2(6) /3)

= abs (-12 /3)

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= -4 / 2

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3 years ago

AB is tangent to circle O at B. Find the length of the radius r for AB = 5 and AO = 8.6. Round to the nearest tenth if necessary

OverLord2011 [107]

The answer to this question is c.7

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Fins the zeroes of the quadratic equation : 4√ 5 x^ 2 - 24x - 9√ 5

liubo4ka [24]

Answer:

Step-by-step explanation:

Hello,

First of all, we know that the solution of the following equation

$ax^2+bx+c=0$

are

$\dfrac{-b\pm\sqrt{b^2-4ac}}{2a} \ \text{ when } \Delta=b^2-4ac \geq 0$

I would suggest that you try to apply this formula first and check the solution only after you try.

Let's apply it in this case, we have:

$a=4\sqrt{5} \\ \\ b=-24 \\ \\ c= -9\sqrt{5}$

$\Delta=b^2-4ac=24^2+4*9*5=1296 \\ \\ \sqrt{\Delta}=36 \ \text{ and the solutions are } \\ \\ \\ x_1=\dfrac{24-36}{8\sqrt{5}}=\dfrac{-12}{8\sqrt{5}}=\boxed{\dfrac{-3}{2\sqrt{5}}} \\ \\x_2=\dfrac{24+36}{8\sqrt{5}}=\dfrac{60}{8\sqrt{5}}=\boxed{\dfrac{15}{2\sqrt{5}}}$

Hope this helps.

Do not hesitate if you need further explanation.

Thank you

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3 years ago

Solve for y. y + 1.05 = 7.26 A.y = 8.31 B.y = -8.31 C.y = 6.21 D.y = -6.21

Lady bird [3.3K]

Answer:

The answer is C (6.21).

Step-by-step explanation:

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3 years ago

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