2 years ago

How do i do this and how do i show my work ?

Mathematics

1 answer:

Andrej [43]2 years ago

3 0

Idek sorry but look it up first

You might be interested in

3/4x3-2= -1/4+1/2x+5

Ksju [112]

Answer:

what I think the answer is ×=-9

3 0

2 years ago

Read 2 more answers

What two numbers add to 9 and multiply to -70

Alborosie

X, y - the numbers

The numbers add to 9 and multiply to -70.
$x+y=9 \\
xy=-70 \\ \\
y=9-x \\
xy=-70 \\ \\
\hbox{substitute 9-x for y in the second equation:} \\
x(9-x)=-70 \\
9x-x^2=-70 \\
-x^2+9x+70=0 \\
-x^2+14x-5x+70=0 \\
-x(x-14)-5(x-14)=0 \\
(-x-5)(x-14)=0 \\
-x-5=0 \ \lor \ x-14=0 \\
x=-5 \ \lor \ x=14 \\ \\
y=9-x \\
y=9-(-5) \ \lor \ y=9-14 \\
y=14 \ \lor \ y=-5 \\ \\
(x,y)=(-5,14) \hbox{ or } (x,y)=(14,-5)$

The numbers are -5 and 14.

4 0

2 years ago

Given the diagram below, which pair of lines

Olenka [21]

Answer:

Step-by-step explanation:

3 0

2 years ago

Help meeeee<br> plsssssssss

marysya [2.9K]

Answer:

Step-by-step explanation:

7 0

2 years ago

If sin ø = 1/3, what are the values of cos ø and tan ø?

jekas [21]

Step-by-step explanation:

SinA=1/3=p/h

p=1,h=3,and b=?

Using Pythagoras Theorem,

b=√3^2-1^2

b=√9-1

b=√8=2√2

Now,

CosA=b/h=2√2/3

TanA=p/b=1/2√2

There is no phi in my keypad so I use A angle instead of phi.Adjust it.

6 0

2 years ago