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Rudiy27
3 years ago
10

Find the value of x.

Mathematics
2 answers:
kkurt [141]3 years ago
7 0

Answer:

D

Step-by-step explanation:

So first you know that the angles are across for each other meaning that they are equal.

Therefore the equation would be 7x-13 = 48

Simply do order of operations meaning you subtract 13 from 48 giving you 35.

Then do 35 divided by 7 which means X equals 5 which makes it D.  

kaheart [24]3 years ago
4 0

Answer:

Umm I am pretty sure this answer is 3

Step-by-step explanation:

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How much less than 5x2 – 3x +2 is<br> 2x² +5?
nordsb [41]

Answer:

3x^2 -3x - 3.

Step-by-step explanation:

Just subtract:

5x^2 - 3x + 2 - (2x^2 + 5)

= 5x^2 - 3x + 2 - 2x^2 - 5

= 3x^2 -3x - 3.

5 0
3 years ago
If the standard deviation of returns on the market is 20 percent, and the beta of a well-diversified portfolio is 1.5. Calculate
Luden [163]

Answer:

a. 30 percent.

Step-by-step explanation:

Given that:

The standard deviation of returns = 20 percent

Beta = 1.5

Beta=Standard deviation of portfolio × correlation/Standard deviation of market × Correlation

Since Correlation with the market will be +1;

Then;

The Standard deviation of portfolio = 1.5 × 20%

The Standard deviation of portfolio = 30.00%

3 0
3 years ago
Find all local extrema for f(x, y) = 2y3 + 12x2 − 24xy. (if an answer does not exist, enter dne.) local minimum (x, y) = local m
OlgaM077 [116]
f(x,y)=2y^3+12x^2-24xy
Find the first derivatives:
f'_x=24x-24y \\ f'_y=6y^2-24x.
Solve the system \left \{ {{f'_x=0} \atop {f'_y=0}} \right.:
\left \{ {{24x-24y=0} \atop {6y^2-24x=0}} \right. \rightarrow \left \{ {{x=y} \atop {6y^2-24y=0}}. The second equation has solutions y_1=0, \\ y_2=4 and then x_1=0, \\ x_2=4 and you have two points A_1(0,0), \\ A_2(4,4).

Find the first derivatives:
f^{''}_{xx}=24 \\ f^{''}_{xy}=f^{''}_{yx}=-24 \\ f^{''}_{yy}=12y and calculate \Delta=\left|  \left[\begin{array}{cc}24&-24\\-24&12y\end{array}\right]\right |=24\cdot 12y-(-24)^2=288y-576.
Since \Delta(A_1)=-576 and f^{''}_{xx}\ \textgreater \ 0, A_1 is a point of maximum and f(0,0)=0.
Since \Delta(A_2)=576 and f^{''}_{xx}\ \textgreater \ 0, A_1 is a point of minimum and f(4,4)=-64.




4 0
4 years ago
Part A: The area of a square is (16x2 − 8x + 1) square units. Determine the length of each side of the square by factoring the a
d1i1m1o1n [39]

Answer:

see below

Step-by-step explanation:

16x^2 − 8x + 1

(4x)^2 -8x +1

Factor

This is a perfect square trinomial

a^2 -2ab +b^2 = (a-b)(a-b)

(4x)^2 -8x +1 = (4x-1) (4x-1)

The area of a square is given by

A = s^2

(4x-1) ^2 = s^2

4x-1 = s

The side length is 4x-1

(81x^2 − 4y^2)

(9x)^2 - (2y)^2

This is the difference of squares

a^2 - b^2 = (a-b) (a+b)

(9x-2) (9x+2)

The area of a rectangle is

A = l*w

(81x^2 − 4y^2)  = (9x-2) (9x+2)

The dimensions are (9x-2) (9x+2)

3 0
3 years ago
-4 (t - 15) = -12<br><br> What equals t?
Salsk061 [2.6K]

Answer:

t=18

Step-by-step explanation:

t-15=3

t=18

3 0
3 years ago
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