3 years ago

What numbers would be in the in the 4 sections of a 2 x 2 array that shows the problem 19 x 11?

Mathematics

1 answer:

marishachu [46]3 years ago

3 0

Answer:

number 2

Step-by-step explanation:

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a ladder 13m long is placed on the ground in such a way that it touches the top of a vertical wall 12m high. find the distance o

Sergio039 [100]

Answer:

by applying Pythagoras theorem;

the ladder(13m) acts as hypotenuse

the wall (12m) acts as height

the distance between the the two is the base

therefore

a² + b² = c²

b²= c²- a²

b²= 169 - 144

b² = 25

√b² = √25

b= 5m

the distance is 5m

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3 years ago

Sandi is 13 years old. Karla is 3 times Sandi's age. How old is Karla?

RoseWind [281]

39. 13x3.....................

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Solve for x: −1 < x + 3 < 5

MA_775_DIABLO [31]

Answer:

Step-by-step explanation:

Subtract 3 from all sides.

-4 < x < 2

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3 years ago

How is -27 a rational number

gayaneshka [121]

Answer:

see explanation

Step-by-step explanation:

A rational number can be expressed in the form

$\frac{a}{b}$ where a and b are integers

Given

- 27 = $\frac{-27}{1}$ ← in rational form

Thus - 27 is a rational number

7 0

3 years ago

Read 2 more answers

Given ; 2(10-13x)+9x=-34x+60

rewona [7]

Try comparing your solution with the following:

Solution:

$2(10-13x)+9x=-34x+60\\(20-26x)+9x=-34x+60\\20-26x+9x=-34x+60\\20-17x=-34x+60\\20-60=-34x+17x\\-40=-17x\\x=\frac{40}{17}$

Answer:

$x=\frac{40}{17}$

Check:

$2[10-13(\frac{40}{17})]+9(\frac{40}{17})=-34(\frac{40}{17})+60\\-20=-20$

<em>Hope this was helpful.</em>

3 0

3 years ago