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11 months ago

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Mathematics

1 answer:

Genrish500 [490]11 months ago

3 0

hey

$^{9807}$

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Y=7/x, x≠0 need the graph answer!!

Nuetrik [128]

Answer:

so the first picture is it graphed without solving it and the second graph is the answer to it graphed

Step-by-step explanation:

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3 years ago

On Monday there are 25 pencils in a basket, If 3 pencils are taken out of the basket each day, how many pencils are left in the

lutik1710 [3]

13 cuz add 4 days then friday so 4×3 which is 12 and 12-25 so ye its 13

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2 years ago

A signal can be sent from one location to another by running different colored flags up a flagpole, one above the other. There a

Verdich [7]

Using the permutation formula, it is found that there are 17,297,280 different signals consisting of 8 flags.

In this problem, the order in which the flags are visited is important, hence the <em>permutation formula</em> is used to solve this question.

<h3>What is the permutation formula?</h3>

The number of possible permutations of x elements from a set of n elements is given by:

$P_{(n,x)} = \frac{n!}{(n-x)!}$

The first flag is blue, then the remaining 7 are taken from a set of 14, hence:

$P_{(14,7)} = \frac{14!}{7!} = 17,297,280$

There are 17,297,280 different signals consisting of 8 flags.

More can be learned about the permutation formula at brainly.com/question/25925367

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2 years ago

Show that if u+v and u-v are orthognal, then the vectors u and v must have the same length.

pashok25 [27]

Answer with Step-by-step explanation:

We are given that

u+ v and u-v are orthogonal

We have to prove that u and v must have the same length.

When two vector a and b are orthogonal then

$a\cdot b=0$

By using the property

$(u+v)\cdot (u-v)=0$

We know that

$(a+b)\cdot (a-b)=\mid a\mid^2-\mid b\mid^2$

$\mid u\mid ^2-\mid v\mid^2=0$

$\mid u\mid^2=\mid v\mid^2$

Magnitude is always positive

When power of base on both sides are equal then base will be equal

Therefore,

$\mid u\mid=\mid v\mid$

Hence, the length of vectors u and v must have the same length.

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3 years ago

Ashley deposits $500 into an account that earns 2% interest compounded 3 times per year. How much money will Ashley have in her

Vadim26 [7]

A=p (1+r/k)^kt
A=500×(1+0.02÷3)^(3×4)
A=541.50

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3 years ago