All categories

2 years ago

Simplify 4) -3.037r+2.4(7.47r - 1.1)

Mathematics

2 answers:

shusha [124]2 years ago

5 0

Step-by-step explanation:

I hope it will help you so.

e-lub [12.9K]2 years ago

3 0

Answer: 15.539r-2.64
Step-by-step explanation:

You might be interested in

Find the complex zeros of <br><img src="https://tex.z-dn.net/?f=%20f%28x%29%20%3D%20%7Bx%7D%5E%7B3%20%7D%20%20-%2013%20%7Bx%7D%5

timama [110]

$f(x) = 0 \\\\\implies x^3-13x^2+59x -87 =0\\\\\implies x^3 -3x^2 -10x^2 +30x +29x - 87=0\\\\\implies x^2(x-3) - 10x(x-3) + 29(x-3) =0\\\\\implies (x-3)(x^2 -10x +29) =0\\\\\implies x - 3 = 0 ~~ \text{or}~~x^2 -10x +29 = 0\\\\\implies x =3~~ \text{ or} ~~ x = \dfrac{-(-10) \pm \sqrt{(-10)^2 -4 \cdot 1 \cdot 29}}{2(1)}\\\\\implies x =3~~ \text{ or} ~~ x = \dfrac{10\pm \sqrt{-16}}{2}\\\\\implies x =3~~ \text{ or} ~~ x = \dfrac{10\pm 4i }{2}\\$

$\\\implies x =3~~ \text{ or} ~~ x =5 \pm 2i\\\\\text{Hence the complex roots are,}~ 5- 2i ~~ \text{and} ~~5 + 2i$

6 0

3 years ago

Select the correct volume.

Bond [772]

Answer:

i think it is 8/125

Step-by-step explanation:

slect B

6 0

3 years ago

The scale model of a skyscraper being built is 4.2 feet tall.

BigorU [14]

A. Convert 4.2 feet to meters. 4.2 feet = 1.28016 meters. The Formula of Scale = Big / Small
Scale = 525 meters / 1.28016 meters
Scale = 410.1050 meters

b. Convert 4.2 feet to inches. 4.2 feet = 50.4 inches.
To get the number of plywood, divide 50.4 inches by 0.6 inch. The answer is 84. So there are 84 plywood sheets.

7 0

3 years ago

Answer quickly please

Olin [163]

Answer:

Step-by-step explanation:

A. 3000/50 is 60

4 0

3 years ago

Find the measure of the angle. <br> I need to show my work, please, thank you!!!

Rina8888 [55]

Answer:

148

Step-by-step explanation

A you may have studies,

x+125+23=180

x+148=180

x=132

Angle S = 132

but to find ? you have to add U and T

so it's y=125+23=148

6 0

3 years ago