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3 years ago

Show your work please!

Mathematics

2 answers:

timofeeve [1]3 years ago

6 0

Answer:

Step-by-step explanation:

10^5=100,000

100,000*4.7=470,000 (Four Hundred Seventy Thousand)

10^8=100000000

100000000*3.9=390,000,000 (Three Hundred Ninty Million)

10^5=100,000

100,000*5.2=520,000 (Five Hundred Two Thousand)

Least to Greatest:

470,000 520,000 390,000,000

I III II

inysia [295]3 years ago

6 0

Answer: B

Explanation:
4.7 x 10^5 = 470000
3.9 x 10^8 = 390000000
5.2 x 10^ 5 = 520000

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So yea just help this is the last one

Leto [7]

Answer:

C Because thats the only thing there is no doubt

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3 years ago

The roots of a quadratic equation ax2+bx+c=0 are 3+sqrt2 and 3−sqrt2. Find the values of b and c assuming that a=1.

slamgirl [31]

Answer:

$b=-6\\c=7$

Step-by-step explanation:

we know that

The general equation of a quadratic function in factored form is equal to

$y=a(x-x_1)(x-x_2)$

where

a is a coefficient of the leading term

x_1 and x_2 are the roots

we have

$a=1\\x_1=3+\sqrt{2}\\x_2=3-\sqrt{2}$

substitute

$y=(1)(x-(3+\sqrt{2}))(x-(3-\sqrt{2}))$

Applying the distributive property convert to expanded form

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

$y=x^2-(3x-x\sqrt{2})-(3x+x\sqrt{2})+(9-2)$

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therefore

$b=-6\\c=7$

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3 years ago

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svp [43]

Answer:

Option A will be correct.

Step-by-step explanation:

Given that polygon ABCD and polygon JKLM are similar.

Therefore, the corresponding sides of the two similar polygons will be in the same ratio.

Hence, $\frac{AB}{JK} = \frac{BC}{KL} = \frac{CD}{LM} = \frac{DA}{MJ}$

Hence, we can write $\frac{3}{x} = \frac{6}{59}$

⇒ $x = \frac{59}{2} = 29.5$ {Since given that CD = 3, DA = 6, LM = x and MJ = 59}

Therefore, option A will be correct. ( Answer )

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3 years ago

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never [62]

Answer:

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Step-by-step explanation:

removing absolute value will yield two equation: 2.5-y=3 and 2.5-y=-3

solve for y in both case.

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3 years ago

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AleksandrR [38]

Answer:

Number line is attached

Step-by-step explanation:

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$y$

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so, we can write interval as

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4 years ago