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4 years ago

What is 40,630 written in scientific notation?

Mathematics

2 answers:

trasher [3.6K]4 years ago

8 0

Look at this https://www.integers.co/questions-answers/how-is-the-number-40630-written-in-scientific-notation.htm...

Novay_Z [31]4 years ago

3 0

4.063 x 10*4

Always remember if the decimal is being moved to the left, the exponent will be positive.

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Y=-x^2+2x+10<br> y=x+2<br><br> Substitution<br> Need ASAP

aniked [119]

Answer:

$x_1=\frac{1+\sqrt{33} }{2},y_1=\frac{5+\sqrt{33} }{2}\\ \\ x_2=\frac{1-\sqrt{33} }{2},y_2=\frac{5-\sqrt{33} }{2}$

Explanation:

You must find the solution of the system using the substitution method.

System:

$y=-x^2+2x+10\\\\ y=x+2$

Substitute x+2 for y:

$x+2=y=-x^2+2x+10$

Pass all the terms to one side:

$x^2-2x+x+2-10\\ \\ x^2-x-8=0$

Use the quadratic formula to solve:

$x=\frac{-b+/-\sqrt{b^2-4ac} }{2a}\\ \\ x=\frac{-(-1)+/-\sqrt{(-1)^2-4(1)(-8)} }{2(1)}\\ \\ x=\frac{1+/-\sqrt{1+32} }{2}$

$x_1=\frac{1+\sqrt{33} }{2}\\ \\x_2=\frac{1-\sqrt{33} }{2}$

Use y = x + 2 to find the value of y:

$y_1=2+x_1=2+\frac{1+\sqrt{33} }{2}\\ \\y_1=\frac{5+\sqrt{33} }{2} \\\\y_2=2+x_2=2+\frac{1-\sqrt{33} }{2}\\ \\ y_2=\frac{5-\sqrt{33} }{2}$

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3 years ago

Mr. Maddox asked four students to create a number line to help find the sum of the fractions.

Temka [501]

IM NOT POSITIVE BUT I THINK the Answer IS OPTION A

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3 years ago

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3 years ago

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3 years ago

The u.s. senate consists of 100 members, 2 from each state. A committee of five senators is formed. What is probability it conta

shtirl [24]

Answer:

The probability is 9.80%.

Step-by-step explanation:

The u.s. senate consists of 100 members, 2 from each state.

A committee of five senators is formed.

P(at least one from Your state) = 1- $\frac{98c5}{100c5}$

= 1- $\frac{67910864}{75287520}$

= $1-0.9020$

= 0.098

That is, 9.80%.

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3 years ago