3 years ago

Which of the following are identities?

Mathematics

2 answers:

777dan777 [17]3 years ago

4 0

Answer:

all of them

Step-by-step explanation:

work out + simplify the left side and you will get the same as the right side

Nuetrik [128]3 years ago

4 0

Answer:

The answer is 2 because they are similar it is just that the one at the side is factorised

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The teams ratio of games won to games played was 5 to 6. If the team played 36 games how many games did The team fail to win

alexdok [17]

Answer:

well this is simple 5x6= 30 and 6x6= 36 so its 30/6

Step-by-step explanation:

because we need to get 6 to 36 and we know that 6x6 then you also have to multiply 5x6 so then thats 30

5 0

2 years ago

Suppose 150 students were surveyed.How many students chose math as their favorite subject?

Vsevolod [243]

First calculate the percentage of math.
100-23-30-15-12
=20%
then 150x20% for the math
=30 so there are 30 students chose math.

7 0

2 years ago

Evaluate x2/y + x2/z , if x = 10, y = -5, and z = -2.

ch4aika [34]

X^2/y + x^2/z =
10^2/(-5) + 10^2/(-2) =
100/(-5) + 100/(-2) =
-20 - 50 =
-70

6 0

3 years ago

Read 2 more answers

Four lines are drawn on a coordinate plane to form trapezoid WXYZ.

denis23 [38]

What do we do? Is there a attachment?

5 0

3 years ago

Solve the following system of equations using substitution.

ollegr [7]

To solve system of equations by substitution, we are going to use the first equation to substitute into the second equation wherever you see y.

$5x - 4y = -3$

$5x - 4(3x-5) = -3$

$5x -12x+20=-3$

$-20$ $-20$

_______________

$5x-12x=-23$

$-7x=-23$

___ ____

$-7$ $-7$

$x=3.29$ (rounded)

Next, substitute x = 3.29 into the first equation, or to any equation you'd like, to find y.

$y = 3x-5$

$y = 3(3.29)-5$

$y = 9.87-5$

$y = 4.87$

So, your final answer would be (3.29, 4.87).

7 0

2 years ago