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REY [17]
4 years ago
6

Someone help me . I don’t know the answer!!

Mathematics
1 answer:
ollegr [7]4 years ago
5 0

Answer:

the answer is x=8, y=7

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Evaluate the determinant for the following matrix: -4 -4 -3
expeople1 [14]

A suitable calculator finds the determinant to be ...

... B. -203

_____

This can be calculated by hand by copying the first two columns to the right of the given matrix, then forming the sum of products of the downward diagonals and subtracting the sum of products of the upward diagonals.

... (-4)(3)(-5) +(-4)(-5)(-5) +(-3)(3)(2) -(-5)(3)(-3) -(2)(-5)(-4) -(-5)(3)(-4)

... = 60 -100 -18 -45 -40 -60

... = -203

3 0
4 years ago
Whats is the distance between the ferris wheel and the merry-go-round? Ferris wheel on the coordinate plane is (-9,6) and the lo
Bezzdna [24]

Answer:

19 units

Step-by-step explanation:

use distance formula: d = \sqrt{(x_2-x_1)^{2}+(y_2+y_1)^{2}}

x₂ = 10

x₁ = -1

y₂ = 6

y₁ = 6

now plug in

\sqrt{(10-(-9))^{2}+(6-6)^{2}}\\= \sqrt{19^{2}+0^{2}\\}\\= \sqrt{361}\\= 19

8 0
3 years ago
The point of a square pyramid is cut off, making each lateral face of the pyramid a trapezoid with the dimensions shown.
omeli [17]

Answer:

The area of one trapezoidal face of the figure is 2 square inches

Step-by-step explanation:

<u><em>The complete question is</em></u>

The point of a square pyramid is cut off, making each lateral face of the pyramid a trapezoid with the dimensions shown. What is the area of one trapezoidal face of the figure?

we know that

The area of a trapezoid is given by the formula

A=\frac{1}{2}(b_1+b_2)h

where

b_1 and b-2 are the parallel sides

h is the height of the trapezoid (perpendicular distance between the parallel sides)

we have

h=1\ in\\b_1=1\ in\\b_2=3\ in

substitute the given values in the formula

A=\frac{1}{2}(1+3)(1)

A=2\ in^2

8 0
4 years ago
Read 2 more answers
Solve for X.<br><br> -3/2(x-2)=45/14<br><br> Please show work.
ICE Princess25 [194]

Answer:

-1/7

Step-by-step explanation:

-3/2(x-2)=45/14

x-2=(45/14)/(-3/2)

x-2=(45/14)(-2/3)

x-2=-90/42

simplify -90/42 into -15/7

x-2=-15/7

x=-15/7+2

x=-15/7+14/7

x=-1/7

7 0
3 years ago
Read 2 more answers
Pls help me I have 5 min to do this!!!! PLS PLS PLS PLS PLS NO LINKS!!!! I can’t open them just pls give me the answer idc how y
dsp73

Answer:

reflected over x - axis

P(8, -6)

Q(5, -2)

R(-2, -1)

4 0
3 years ago
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