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Lubov Fominskaja [6]
1 year ago
11

For what values of x is the expression below defined? √x+4÷√1-x

Mathematics
2 answers:
wariber [46]1 year ago
4 0

Answer:

x=1

Step-by-step explanation:

jonny [76]1 year ago
4 0
What that person said
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Can anyone helpppp???
Julli [10]

Answer:

Step-by-step explanation:

Surface area is the total surface.  So first, find each surface...two triangles, same size and three rectangles, same size.  

So you will have to add each....triangle+triangle+rectangle+rectangle+rectangle.

Area of a triangle = 1/2(b)(h)               with b=base and h=height

Plug in knowns         1/2(15)(13)=A

Multiply 15X13=195  Then divide by 2.  195/2=97.5  

The area of each triangle is 97.5 yd.

Area of a rectangle = (L)(W)                  with L=Length and W=Width

Plug in knowns          (15)(24)=A             Now, multiply

15X24=360

The area of each rectangle is 360 yd.  

We need to add two triangles for front and back. and three rectangls.

97.5+97.5+360+360+360=1275

Surface area is 1,275 yd.

8 0
2 years ago
How many kilograms are there in 37 pounds?
lana66690 [7]

Answer:16.8

Step-by-step explanation: multiply 37 pounds by 0.454 and round

4 0
2 years ago
Read 2 more answers
Jon and two of his friends ordered a large pizza with 10 slices. All together they ate 1/2 of the pizza. If they evenly divided
boyakko [2]

Answer:

C (1 2/3)

Step-by-step explanation:

This is a division problem.

10 pieces total; 5 eaten

5 pieces eaten split evenly between John and 2 friends

5/3 = 1.667

1.667 = C

8 0
3 years ago
Assume that T is a linear transformation. Find the standard matrix of T. T: R^3 right arrow R^2 , T(e 1) =(1,2), and T(e2 ) =( -
irina [24]

Answer:

A = \left[\begin{array}{ccc}1&-4&2\\2&6&-6\end{array}\right]

Step-by-step explanation:

Given

T:R^3->R^2

T(e_1) = (1,2)

T(e_2) = (-4,6)

T(e_3) = (2,-6)

Required

Find the standard matrix

The standard matrix (A) is given by

Ax = T(x)

Where

T(x) = [T(e_1)\ T(e_2)\ T(e_3)]\left[\begin{array}{c}x_1&x_2&x_3\\-&&x_n\end{array}\right]

Ax = T(x) becomes

Ax = [T(e_1)\ T(e_2)\ T(e_3)]\left[\begin{array}{c}x_1&x_2&x_3\\-&&x_n\end{array}\right]

The x on both sides cancel out; and, we're left with:

A = [T(e_1)\ T(e_2)\ T(e_3)]

Recall that:

T(e_1) = (1,2)

T(e_2) = (-4,6)

T(e_3) = (2,-6)

In matrix:

(a,b) is represented as: \left[\begin{array}{c}a\\b\end{array}\right]

So:

T(e_1) = (1,2) = \left[\begin{array}{c}1\\2\end{array}\right]

T(e_2) = (-4,6)=\left[\begin{array}{c}-4\\6\end{array}\right]

T(e_3) = (2,-6)=\left[\begin{array}{c}2\\-6\end{array}\right]

Substitute the above expressions in A = [T(e_1)\ T(e_2)\ T(e_3)]

A = \left[\begin{array}{ccc}1&-4&2\\2&6&-6\end{array}\right]

Hence, the standard of the matrix A is:

A = \left[\begin{array}{ccc}1&-4&2\\2&6&-6\end{array}\right]

6 0
3 years ago
-15+3-7 is greater than less than or equal to -9-1+16
lisov135 [29]

Answer:less than

Step-by-step explanation:

-15+3-7=-19

-9-1+16=6

A positive will always be bigger than a negative

5 0
3 years ago
Read 2 more answers
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