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3 years ago

Heyyyyyyyyyyyy! How was your dayyyyy? :)

Mathematics

2 answers:

slava [35]3 years ago

8 0

Answer:

Hello!

My day is/was great. How's your day?

Hope you have a great day!

Ksenya-84 [330]3 years ago

4 0

Answer:

good and you

Step-by-step explanation:

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There are 49 students had their lunch in the cafeteria. One-

Harman [31]

7 students brought lunch from home

3 0

2 years ago

Use function notation to write the equation of the line

blondinia [14]

$f(x)=mx+b\to y=mx+b$

We have two points:

$(-3,\ 0);\ (-4,\ 7)$

The point slope form of the line:

$y-y_1=m(x-x_1)\\\\m=\dfrac{y_2-y_1}{x_2-x_1}$

Substitute

$m=\dfrac{7-0}{-4-(-3)}=\dfrac{7}{-1}=-7$

$y-0=-7(x-(-3))\\\\y=-7(x+3)\\\\y=-7x-21$

Answer:

$f(x)=-7x-21$

8 0

3 years ago

5. Find the mZABC if<br> ZABD = 35°, ZDBC = 55º.

Reika [66]

Answer:

$m\angle ABC=90^o$

Step-by-step explanation:

see the attached figure to better understand the problem

we know that

$m\angle ABC=m\angle ABD+m\angle DBC$ ----> by angle addition postulate

substitute the given values

$m\angle ABC=35^o+55^o=90^o$

5 0

3 years ago

I have a series of 2 questions.

Margarita [4]

1)
I:y=3x-4
II:9x-3y=14

substitute y into II:
9x-3*(3x-4)=14
9x-9x+12=14
12=14

this is obviously not equal so there is no solution, the lines are parallel

2)
I:y=4x+6
II:5x-y=6

substitute y into II:
5x-(4x+6)=6
5x-4x-6=6
x=12
substiute x into II:
5*12-y=6
-y=6-60
-y=-54
y=54

the solution is (12,54)

3 0

4 years ago

What is the multiplicative inverse of -5 1/2

stira [4]

Answer:

idk

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers