All categories

3 years ago

Answer to 3,4,5,6,7,8,9,10,11,12 !!

Mathematics

1 answer:

sineoko [7]3 years ago

8 0

3. i=129; j=112
4.k=90;l=116;m=64;n=86
5.o=13;p=78;q=91
6.a=120;b=60;c=140
Can't see #7
You did 8 I believe
9.v=39;w=59;x=121
10.y=59;z=93
11.a=42;b=48;c=132
12.a=60;b=50;c=80;d=100

You might be interested in

Estimate then record 721×8

Hitman42 [59]

721*8= 5768.................

8 0

3 years ago

Read 2 more answers

Please help, i will give brainliest to whos first

Wittaler [7]

Thanks with all of my heart!

ik im not first but have a lovely day! u are really kind! never forget that!

6 0

3 years ago

The graph represents function 1, and the equation represents function 2: A coordinate plane graph is shown. A horizontal line is

hichkok12 [17]

Hi there
It would be 145

6 0

3 years ago

Read 2 more answers

let a = (a1, a2) and b = (b1, b2) and c = (c1,c2) be three non zero vectors. if a1b2 - a2b1 is not equal to 0. then show three a

Ksenya-84 [330]

Consider the contrapositive of the statement you want to prove.

The contrapositive of the logical statement

p ⇒ q

¬q ⇒ ¬p

In this case, the contrapositive claims that

"If there are no scalars α and β such that c = αa + βb, then a₁b₂ - a₂b₁ = 0."

The first equation is captured by a system of linear equations,

$\begin{cases}c_1 = \alpha a_1 + \beta b_1\\ c_2 = \alpha a_2 + \beta b_2\end{cases}$

or in matrix form,

$\begin{pmatrix}c_1\\c_2\end{pmatrix} = \begin{pmatrix}a_1&b_1\\a_2&b_2\end{pmatrix}\begin{pmatrix}\alpha\\\beta\end{pmatrix}$

If this system has no solution, then the coefficient matrix on the right side must be singular and its determinant would be

$\begin{vmatrix}a_1&b_1\\a_2&b_2\end{vmatrix} = a_1b_2-a_2b_1 = 0$

and this is what we wanted to prove. QED

3 0

3 years ago

Classify the following triangle as acute obtuse or right

yan [13]

Acute since right triangles have a 90 degree angle and obtuse triangles have angles in between 90 and 180

5 0

3 years ago