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olga2289 [7]
3 years ago
5

Which set or sub set does \large \frac{24}{8} belong?

Mathematics
1 answer:
OleMash [197]3 years ago
5 0

Answer:

rational numbers

Step-by-step explanation:

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It’s always gonna be 60 Units this is just an known fact
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2 years ago
A line passes through the point (-6,7) and has a slope of -2 write an equation in point slope form for this line
Anuta_ua [19.1K]

Answer:

Step-by-step explanation:

(-6,7) & m = -2

point slope form of line :  y - y₁   = m (x-x₁)

y - 7 = (-2) (x - [-6] )

y - 7 = (-2) (x + 6)

y - 7 = -2x - 2 * 6

y - 7 = -2x - 12

2x  + y = -12 +7

 2x + y = -5   0r  y = -2x - 5

3 0
3 years ago
Round to the nearest whole number:<br> a) 19.3 b) 127.8
enot [183]

Answer:

19 and 128

Step-by-step explanation:

19.3 is closer to 19 than 20 and 127.8 is closer to 128 than 127

7 0
2 years ago
Read 2 more answers
Let e1= 1 0 and e2= 0 1 ​, y1= 4 5 ​, and y2= −2 7 ​, and let​ T: ℝ2→ℝ2 be a linear transformation that maps e1 into y1 and maps
Furkat [3]

Answer:

The image of \left[\begin{array}{c}4&-4\end{array}\right] through T is \left[\begin{array}{c}24&-8\end{array}\right]

Step-by-step explanation:

We know that T: IR^{2}  → IR^{2} is a linear transformation that maps e_{1} into y_{1} ⇒

T(e_{1})=y_{1}

And also maps e_{2} into y_{2}  ⇒

T(e_{2})=y_{2}

We need to find the image of the vector \left[\begin{array}{c}4&-4\end{array}\right]

We know that exists a matrix A from IR^{2x2} (because of how T was defined) such that :

T(x)=Ax for all x ∈ IR^{2}

We can find the matrix A by applying T to a base of the domain (IR^{2}).

Notice that we have that data :

B_{IR^{2}}= {e_{1},e_{2}}

Being B_{IR^{2}} the cannonic base of IR^{2}

The following step is to put the images from the vectors of the base into the columns of the new matrix A :

T(\left[\begin{array}{c}1&0\end{array}\right])=\left[\begin{array}{c}4&5\end{array}\right]   (Data of the problem)

T(\left[\begin{array}{c}0&1\end{array}\right])=\left[\begin{array}{c}-2&7\end{array}\right]   (Data of the problem)

Writing the matrix A :

A=\left[\begin{array}{cc}4&-2\\5&7\\\end{array}\right]

Now with the matrix A we can find the image of \left[\begin{array}{c}4&-4\\\end{array}\right] such as :

T(x)=Ax ⇒

T(\left[\begin{array}{c}4&-4\end{array}\right])=\left[\begin{array}{cc}4&-2\\5&7\\\end{array}\right]\left[\begin{array}{c}4&-4\end{array}\right]=\left[\begin{array}{c}24&-8\end{array}\right]

We found out that the image of \left[\begin{array}{c}4&-4\end{array}\right] through T is the vector \left[\begin{array}{c}24&-8\end{array}\right]

3 0
3 years ago
Josie spent 4/7 of ten money in her purse on some books, and the rest of the money on 18 markers. Each marker cost $1.20. How mu
NeTakaya

Let's assume money in Josie's purse to begin with as 'x'

There are 18 markers

Each marker cost $1.20

so, we can find total cost of markers

Total cost of markers = ( total number of markers)*(price of each marker)

so, we can plug value

Total cost of markers is

=18\times 1.20

=21.6$

now, we are given

Josie spent 4/7 of the money in her purse on some books

the rest of the money on 18 markers

so, rest money is

=x-\frac{4}{7} x

=\frac{3}{7} x

and this rest money is total cost of markers

so, we can set them equal and then we can solve for x

\frac{3}{7} x=21.6

7\cdot \frac{3}{7}x=21.6\cdot \:7

3x=151.2

x=50.4

So, total money in Josie's purse in beginning is $50.4..........Answer

8 0
3 years ago
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