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3 years ago

What is the value of w?

Mathematics

1 answer:

Arlecino [84]3 years ago

4 0

Looks like 49 and w complete the 77 angle
77-49 = w
W= 28

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She purchased 40% of the copies in the store. She has 80 copies of the cd. How many cd were on sale

mafiozo [28]

To find the number of CD on sale, we can set an equation.

Let y be the number if CD.

As she bought 40%, the amount she bought= 40%y

The equation:

40%y = 80

0.4y = 80

y = 80÷0.4

y=320

Therefore there were originally 320 CDs.

Hope it helps!

8 0

3 years ago

determine the householder transformation that annihilates all but the first entry of the vector [1 1 1 1 ]t. specifically, if (

Stolb23 [73]

Answer:

v=a+ 2e1= [3 1 1 1] $x^{T}$ .

Step-by-step explanation:

Let a = $^{}$ $\left[\begin{array}{ccc}\\1&1&1\\\end{array}\right] ^{T}$ and we know that $\alpha$ =±║α║₂= 2.

As we have gone over in class, the formula for v is v= a- $\alpha$ e1

with the sign of chosen to avoid subtraction. This gives v=a+ 2e1= [3 1 1 1] $x^{T}$ .

Disclaimer ;The question is incomplete

Question:

Determine the Householder transformation that annihilates all but the first entry of the vector[1 1 1 1]>Specifically, if

$I-2vv^{T}/v^{T}v\left[\begin{array}{ccc}1\\1\\1\\1\end{array}\right]$ == $\left[\begin{array}{ccc}\alpha \\0\\0\\0\end{array}\right]$

what are the values of α and v?

#SPJ4

learn more about it on

brainly.com/question/28180105

8 0

1 year ago

What is the answer for this multi step equation

Masteriza [31]

1+7x=1+7x
-7x. -7x
1=1

8 0

3 years ago

Issac put $5 in a shoe box every day for the months of april, may, and june. He then spent 75% of the money on baseball cards. H

igor_vitrenko [27]

As of 2021:
April-$150
May-$155
June-$150
Total-$455
Spent 75%=455/100x75
=341.25
455-341.25=$113.75
Round off to 3sf: $114
Have a good day

3 0

3 years ago

Write an equation for which 0 is a solution

masha68 [24]

Answer:

x-y=0

Hope this helped

4 0

2 years ago