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3 years ago

Asking easy questions so people can get points (answer must be right)

Mathematics

1 answer:

NeX [460]3 years ago

3 0

.45*10^4=4500
^ is the usual symbol for powers

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Hhhhheeeellllkllllpppp

DerKrebs [107]

-21 is your answer

it is reflected over the x axis, and the point is on 21 no?

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3 years ago

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Write the ratios for tan D

Maurinko [17]

Answer:

3/5 3:5 3 to 5

1/4 1 to 4 1:4

Step-by-step explanation:

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3 years ago

Solve the system of equations.

tino4ka555 [31]

<u>Answer:</u>

(2, 7) or (-6, 1)

<u>Step-by-step explanation:</u>

We are given two equations:

$y=x+5$ ; and

$y = x^2+5x-7$

Since y is the subject for both the equations so we can put the values of y equal to each other to get:

$x+5=x^2+5x-7$

$x^2+5x-x-7-5=0$

$x^2+4x-12=0$

Factorizing the expression to get:

$x^2-2x+6x-12=0$

$x(x-2)+6(x-2)=0$

$(x-2) (x+6) = 0$

$x=2, x= -6$

Putting x = 2 and x = -6 in any of the equations to get the values of y:

$y=x+5$

$y =2+5$

$y=7$

and

$y =(-6)+5$

$y=1$

Therefore, solution to these equation is (2, 7) or (-6, 1).

5 0

3 years ago

Read 2 more answers

John works 40hrs a week getting paid $13.00 per hour. He gets paid weekly and gets taxed 22%. How much is his weekly check?

Charra [1.4K]

Answer:

$405.60

Step-by-step explanation:

40x13=520

520x.22= 114.4

520-114.4=405.60

6 0

3 years ago

Is the slope for the line below positive or negative

Zina [86]

Answer:

negative

Step-by-step explanation:

positive -> as x increases, y increases

negative -> as x increases, y decreases

5 0

3 years ago