8.88 x 10,000 really confused with this one on my homework, can you guys anseer and explain why? would really help!

Answers

Answer 1

Answer: When multiplying by a number that is 1 with 0's on the end, you move the decimal to the right by how many zeros there are.

Because 10,000 has 5 0's, we move the decimal 5 places to the right.

8.88 => 88800

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Can somebody please help me with these two questions? And show your work please? Solve for x.

Answers

(1) x = 12, (2) $x=3(1 )/(2)$

Solution:

(1) If the two triangles are similar and the angles of two triangles are congruent then the corresponding sides are in proportion.

⇒ $(25)/(10)=(30)/(x)$

Do cross multiply.

⇒ $25 * x=30 * 10$

Divide both sides of the equation by 25 to equal the expression.

⇒ $x=(30 * 10)/(25)$

⇒ x = 12

(2) Side of triangle = $4(1)/(3) =(13)/(3)$

If the two triangles are similar and the angles of two triangles are congruent then the corresponding sides are in proportion.

⇒ $(26)/((13)/(3) )=(21)/(x)$

Do cross multiply.

⇒ $26 * x=21 * (13)/(3)$

⇒ $26 * x=7 * 13$

Divide both sides of the equation by 26 to equal the expression.

⇒ $x=(7 * 13)/(26)$

⇒ $x=(7 )/(2)$

⇒ $x=3(1 )/(2)$

Kira measures the round temperature dial on a thermostat and calculates that it has a circumference of 13.188 centimeters. What is the dial's radius?

Answers

C = 2*pi*r
r = C/2pi
= 13.188/2pi
= 2.10 cm

The difference of twice a number (k) and 8 is 12

Answers

Answer: k=2

Step-by-step explanation:

K^2+8=12

K^2=12-8

K=sqrt(4)

Check : 2^2+8=4+8=12

Determine the direction that this parabola opens y=x^2-6x

Answers

Answer:

the graph of the parabola opens upwards.

Step-by-step explanation:

For any quadratic equation of the form

$ax ^ 2 + bx + c$ is true that:

if the main coefficient "a" is negative then the graph of the parabola opens downwards.

If the main coefficient "a" is positive, the parabola opens upwards

In this case the parabola is $y=x^2-6x$

Note that $a=1$ and $a>0$ therefore the graph of the parabola opens upwards.

A basketball team scored 60 points in the firstgame and 50 points in the second game. How
many points did the team score in the third
game if their mean score for the 3 games was
51 points?

Answers

The answer should be 43
51 x 3 = 153
153-60-50=43

Answer:

Step-by-step explanation:

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Answers

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