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Kisachek [45]
3 years ago
15

What is the value of x in -5x-(-7-4x)-2(3x-4)

Mathematics
1 answer:
r-ruslan [8.4K]3 years ago
7 0

Answer:

Step-by-step explanation:

x would be 8776.9 because it said so

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Calculate the area for each shape.
Alex17521 [72]
Trapezoid- 45 square units
Triangle- 27 square units
Parallelogram (to the right figure):
30 square units

MARK ME BRAINLIESTT PLEASE
8 0
3 years ago
A tangent from point P to a circle of radius 4 cm is 10 cm long. Find: <br>a the distance of P from the centre of the circle <br
d1i1m1o1n [39]

Answer:

see explanation

Step-by-step explanation:

a

The tangent and the radius at the point of contact form a right angle

Using Pythagoras' identity on the right triangle formed.

Let x be the distance from the centre to P, then

x² = 4² + 10² = 16 + 100 = 116 ( take the square root of both sides )

x = \sqrt{116} ≈ 10.77 cm (to 2 dec. places )

b

let the required angle be Θ, then

Using the sine or cosine ratio in the right triangle.

cosΘ = \frac{adjacent}{hypotenuse} = \frac{10}{\sqrt{116} }

Θ = cos^{-1} ( \frac{10}{\sqrt{116} } ) ≈ 21.8°

7 0
3 years ago
Can someone check my answers? I'm not sure I have them all right...
Semmy [17]
<span>What is the y-intercept of the plane whose equation is 4x + 5y + z = 20?

(0, 4, 0) 


Which equation has intercepts at X(1, 0, 0), Y(0, 1, 0), and Z(0, 0, 2)?

2x + 2y + z = 2


Which equation is equivalent to x + 3y + z = 3?


4x + 12y + 4z = 12


Which of the following points lies in the plane 3x + 2y + 4z = 12?

(4, 3,2)


Hope these answer the questions. Have a nice day.</span>
3 0
3 years ago
What divide by what equals 0.4545......​
Arturiano [62]

Answer:

5/11

Step-by-step explanation:

let x=0.4545...

100x=45.4545...

100x-x = 99x=45.4545... - 0.4545...=45

x=45/99=5/11

6 0
3 years ago
Need help quick simplify the expression (-4) power of 3
dezoksy [38]

Answer:

-64

Step-by-step explanation:

The question is asking to solve (-4)^3

Notice how the -4 is in parenthesis. This means that along with the 4 being multiplied, the negative is too.

(-4)^3 is the same as -4 · -4 · -4

First let's figure out if this will be negative or positive

Whenever the exponent is odd and there is a negative in the parenthesis the answer will be negative and if its even it will be positive

Now find out what 4 x 4 x 4 equals (64)

In conclusion the answer is -64

8 0
3 years ago
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