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2 years ago

Bestbroi

Mathematics

1 answer:

Mkey [24]2 years ago

7 0

Answer:

0.03 seconds

Step-by-step explanation:

10,000km = 300secs

1km = x seconds

Cross multiply the equation

10,000x = 300

Divide both sides by 10,000

10,000x = 300

10,000 10,000

x = 0.03 seconds

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Please help me out!!!!!!! 54 points!

statuscvo [17]

Answer:

1. (x+5)(x-1)

6. (3x+4)(x-6)

9. (x+5)(x-5)

Step-by-step explanation:

To factor an equation, break the polynomial into two binomials which multiply to make it. There are three main ways to factor:

Regular: Find two numbers that multiply to C and add to B from $ax^2 + bx + c$ .

$x^2+4x-5 = (x+5)(x-1)$

Grouping: Find two numbers that multiply to A*C and add to B. Then split B into the two factors and factor by GCF.

$3x^2-14x-24\\3x^2 - 18x + 4x - 24\\(3x^2-18x)+(4x-24)\\3x(x-6)+4(x-6)\\(3x+4)(x-6)$

Difference of Squares: Factor by taking the square root of each term. $a^2-b^2 = (a-b)(a+b)$

$x^2 - 25 = (x+5)(x-5)$

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3 years ago

A ladder is 59 inches tall. How tall is it in feet and inches?

MrRissso [65]

4 Feet and about 9 inches

6 0

3 years ago

Read 2 more answers

Find the value of X.

Scrat [10]

Answer:

You need to use a ruler or protracter.

4 0

3 years ago

What is the answer of 4(b+3) when b is 6?

Otrada [13]

Answer:

Step-by-step explanation:

Well first if b is 6 we plug that into the following.

4(b+3)

To,

4(6+3)

6+3 is 9 and 9*4 is 36.

7 0

4 years ago

Read 2 more answers

The perimeters of the square and the regular pentagon are equal. A square with side lengths of 3x + 3. A pentagon with side leng

Elena-2011 [213]

Answer:

Step-by-step explanation:

Since the perimeters are equal then:

(3x + 3) * 4 = (x + 8) * 5

12x + 12 = 5x + 40

7x = 28

x =4

Perimeter of square = (3*4 + 3) * 4 =

(12 + 3) * 4 = 60

Perimeter of pentagon = (4 + 8) * 5 =

(12) * 5 = 60

The answer is 60

8 0

3 years ago