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2 years ago

Simplify this -2(y+3)

Mathematics

2 answers:

Alexandra [31]2 years ago

7 0

Answer:

-2y-6

Step-by-step explanation:

Anika [276]2 years ago

7 0

Answer:

= -2y+- 6 or -2y-6

Step-by-step explanation:

you multiply the -2 and the y and you get -2y then you multiply-2 and 3 and you get -6 so therfore it can be written as -2y-6 or -2y+-6

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Simplify (-2x^3)^2 x y x y^9

nadezda [96]

Answer: 4x^6y^10
Explanation:
(-2x^3)^2 x y x y^10
= 4x^3 x 2 x y^1+9
4x^6 x y^10
= 4x^6y^10

8 0

3 years ago

Which dilations result in an image that is smaller then the pre image? Select all that apply giving brainiest

torisob [31]

Answer:

what does the pre image look like

Step-by-step explanation:

7 0

2 years ago

Read 2 more answers

g A test was conducted to determine if there is a difference between Canadian and American average heart rates. A group of 36 Ca

melisa1 [442]

Answer:

The test statistic | t | =4.45

Step-by-step explanation:

Given that the first sample size n₁ = 36

Given that the second sample size n₂ = 34

Mean of the first sample x₁⁻ = 68.5

Mean of the second sample x₂⁻ = 70

Test statistic

$t = \frac{x^{-} _{1}-x^{-} _{2} }{\sqrt{S^{2} (\frac{1}{n_{1} }+\frac{1}{n_{2} } } )}$

$t = \frac{68.5-70}{\sqrt{2(\frac{1}{36}+\frac{1}{34} ) } }$

$t = \frac{-1.5}{0.337} = -4.45$

The test statistic | t | = |-4.45| =4.45

6 0

2 years ago

What part of 35 is 7?

lisov135 [29]

The part of 35 that is 7 is 5

3 0

3 years ago

Read 2 more answers

A pool a possible candidate for a student council consists of 14 freshmen and 8 softwares how many different councils consisting

Andreas93 [3]

The different councils consisting of 5 freshmen and 7 sophomores are possible 9216.

We have given that,

A pool of possible candidates for a student council consists of 14 freshmen and 8 software.

We have to determine the how many different councils consisting of 5 freshmen and 7 sophomores are possible

<h3>What is the combination?</h3>

$_n C_r=\frac{n !}{r ! (n-r) !}_n C_r = number of combinations\\\n = total number of objects in the set\\\r = number of choosing objects from the set$

The total number of the council is

$_{10} C_5\times _9 C_7$

=252(36)

=9216

The different councils consisting of 5 freshmen and 7 sophomores are possible 9216.

To learn more about the probability visit:

brainly.com/question/24756209

#SPJ1

6 0

2 years ago