Ask question

Ask question

All categories

Free_Kalibri [48]

3 years ago

13

Find the value of y so that r//s

1 answer:

Greeley [361]3 years ago

6 0

Is that all the info you have for it??

You might be interested in

Evaluate UV if possible.

Mnenie [13.5K]

Answer: B

Step-by-step explanation:

Multiply U and V:

$\begin{pmatrix}-9&1&0\\ \:4&0&2\\ \:0&1&5\end{pmatrix}\begin{pmatrix}2\\ \:-2\\ \:1\end{pmatrix}$

$\mathrm{Multiply \ the \ rows \ of \ the \ first \ matrix \ by \ the \ columns \ of \ the \ second \ matrix:}$

$\begin{aligned}&\left(\begin{array}{ccc}-9 & 1 & 0\end{array}\right)\left(\begin{array}{c}2 \\-2 \\1\end{array}\right)=(-9) \cdot 2+1 \cdot(-2)+0 \cdot 1 \\&\left(\begin{array}{ccc}4 & 0 & 2\end{array}\right)\left(\begin{array}{c}2 \\-2 \\1\end{array}\right)=4 \cdot 2+0 \cdot(-2)+2 \cdot 1 \\&\left(\begin{array}{lll}0 & 1 & 5\end{array}\right)\left(\begin{array}{c}2 \\-2 \\1\end{array}\right)=0 \cdot 2+1 \cdot(-2)+5 \cdot 1\end{aligned}$

$=\begin{pmatrix}\left(-9\right)\cdot \:2+1\cdot \left(-2\right)+0\cdot \:1\\ 4\cdot \:2+0\cdot \left(-2\right)+2\cdot \:1\\ 0\cdot \:2+1\cdot \left(-2\right)+5\cdot \:1\end{pmatrix}$

$\mathrm{Simplify\:each\:part:}$

$=\begin{pmatrix}-20\\ 10\\ 3\end{pmatrix}$

Therefore, the correct answer is B

5 0

3 years ago

12 kittens & 8 puppies are in the park. what is the largest number of groups they can be split into and have the same number

IRINA_888 [86]

2 groups with 2 puppies and 3 kittens in each group

Equation for kittens:

$12 \div 2 = 6 \div 2 = 3$

Equation for puppies:

$2 \div 8 = 4 \div 2 = 2$

the division has been done two times so it means the largest number of groups it can be split into are two

5 0

3 years ago

Find the volume! If you add step by step how to get, ill mark brainliest. (sorry if the pic is blurry).

s344n2d4d5 [400]

Answer:

124.71

Step-by-step explanation:

V=1 /4h√a4+2(ab)2+2(ac)2﹣b4+2(bc)2﹣c4

a,b,c= base sides

h= height

V=1 /4(8)√(6)^4+2(6x6)^2+2(6x6)^2﹣(6)^4+2(6x6)^2﹣(6)^4

V= 124.71

7 0

3 years ago

Find the greatest common divisor of 18a and 24a^2

Dmitriy789 [7]

Answer:

6a

Step-by-step explanation:

The greatest factor that both 18 and 24 share is 6. The greates factor that a and $a^{2}$ share is a

6 0

2 years ago

What is the vertex form of y= x2+6x-1?<br> *Btw the x2 is x-squared*

jonny [76]

Answer: y=(x + 3)^2 - 10

Step-by-step explanation: finding the vertex form

4 0

3 years ago