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Trava [24]
3 years ago
7

Help, i need an answer for my test

Mathematics
1 answer:
Andre45 [30]3 years ago
6 0

Answer:

22

Step-by-step explanation:

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Sandy had 219 football cards. She bought 57 more at a garage sale. How many did she have then?
8_murik_8 [283]
Therefore, Sandy has 276 football cards.
5 0
4 years ago
Read 2 more answers
Edg vector operations, any help appreciated!
viktelen [127]

\quad \huge \quad \quad \boxed{ \tt \:Answer }

\qquad \tt \rightarrow \: Add \:\: -6 \hat i - 6\hat j \:\:with \:\; Vector \:\; c

____________________________________

\large \tt Solution  \: :

Vector d can be represented as :

\qquad \tt \rightarrow \:  - 2 \hat i - 2 \hat j

Vector c can be represented as :

\qquad \tt \rightarrow \:  4 \hat i + 4\hat j

we have to create vector d from vector c

So, let's assume a vector x, such that sum of vector x and vector c equals to vector d

\qquad \tt \rightarrow \: x + ( 4 \hat i + 4 \hat j) =  - 2 \hat i  - 2 \hat j

\qquad \tt \rightarrow \: x  = -  ( 4 \hat i + 4 \hat j)   - 2 \hat i  - 2 \hat j

\qquad \tt \rightarrow \: x  = (-   4 \hat i  - 2 \hat  i)  + (  - 4 \hat j  - 2 \hat j)

\qquad \tt \rightarrow \: x  = - 6 \hat  i    -6 \hat j

Henceforth, in order to get vector d, we need to add (-6i - 6j) in vector c

Answered by : ❝ AǫᴜᴀWɪᴢ ❞

8 0
2 years ago
For 25 points
tigry1 [53]

The required domain of the inverse function is x ≤ 0. Hence option D is correct.

f(x) = -x^2

<h3>What are functions?</h3>

Functions is the relationship between sets of values. e g y=f(x), for every value of x there is its exists in set of y. x is independent variable while Y is dependent variable.

Inverse of function f(x) = -x^2
y = -x^2
x = √-y
Now,
Inverse function of f(x) is √-x
Its domain is define as less than or equal to zero.

Thus, the required domain of the inverse function is x ≤ 0.

 

Learn more about function here:

brainly.com/question/21145944

#SPJ1

6 0
2 years ago
Help please!! 7&amp;8 I don’t understand
Andrej [43]

Answer:

7. 4

8. -2

Step-by-step explanation:

domain gose right so it should be 4 range goes down so it should be -2

7 0
3 years ago
510
Hoochie [10]

Answer:

$574.41

Step-by-step explanation:

multiply 30 by dollar to pesos

6 0
4 years ago
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