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3 years ago

Which expression is equivalent to 9(y+5)

Mathematics

2 answers:

Marizza181 [45]3 years ago

8 0

Answer:

9y+45

Step-by-step explanation:

9(y+5)

=9*y+9*5

=9y+45

Julli [10]3 years ago

4 0

Answer:

9y+45

Step-by-step explanation:

The expression 9(y+5) can be simplified with multiplication.

9*y=9y and 9*5=45

So the expression 9y+45 is equivalent.

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KATRIN_1 [288]

Answer:

C 7 times 5 plus 7 times 4 is the answer

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3 years ago

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A quiz consist of 2 true-or-false questions 3 are multiple choice questions. The multiple choice questions have 3 options each.

Ahat [919]

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Part 4: 11C4=11×10×9×8÷(4×3×2×1)=330 (a)
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3 years ago

A line has a slope of 5 and passes through the point (-1,2).

Andreyy89

Answer:

Step-by-step explanation:

slope=m= 5

points=(-1,2)

By point-slope form:

$y$ - $y_{1}$ =m( $x-x_{1}$ )

Substitute the values in formula:

y-2=5(x+1) (It is the point slope form)

Now,

Slope intercept form:

y-2=5x+5

y=5x+5+2

y=5x+7

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5 0

2 years ago

If 3x - 2y = 9 , 27x³- 8y³= 1377 , prove that xy = 4 plzz answer this question...

solniwko [45]

Step-by-step explanation:

Here we are given that , the Value of

$3x - 2y = 9$
$27x^3 - 8y^3 = 1377$

And we need to find the prove that ,

$xy = 4$

We know a identity as ,

$(a-b)^3 = a^3-b^3-3ab(a-b)$

On cubing both sides of the given equation,

$(3x-2y)^3 = 9^3$

Simplify and then substitute ,

$27x^3-8y^3 -3(3x)(2y)(3x-2y ) = 729$

$1377 - 18xy (9) = 729$

$162xy = 1377-729$

$xy =\dfrac{648}{162}$

$xy = 4$

Hence Proved !

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2 years ago

Neil has 3 partially full cans of white paint . They contain 1/3 gallon , 1/5 gallon and 1/2 gallon of paint. About how many pai

stepan [7]

Answer:

About 1 gallon. (32/30)

Step-by-step explanation:

First get a LCM (least common multiple) for 3, 5, and 2.

Now we have 30. Make 30 the denominator for all.

10/30

15/30

7/30

Then add them all up to get 32/30.

About 1 gallon.

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3 years ago

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