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2 years ago

10 ( a + x ) = 10 a + x

Mathematics

1 answer:

beks73 [17]2 years ago

8 0

Answer:

x = 0

Step-by-step explanation:

10a+10x=10a+x

10a+10x-10a=10a+x-10a

10x=x

10x-x=x-x

9x=0

9x/9 = 0/9

x = 0

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Could someone do all the problems and/or check my work?

MArishka [77]

11. You’ve done it correctly

12. Let x^2=y
y^2+13y+40=0
(y+8)(y+5)=0
y=8, 5
Since y=x^2
x^2=8 x^2=5
x=+/-√5 x= +/-2√2

13. x^4-x^2-x^2-8=0
x^4-2x^2-8=0
let x^2=y
Y^2-2y-8=0
(y-4)(y+2)=0
y=4, -2
Since y=x^2
X^2=4 X^2=-2
X= +/- 2 This wouldn’t be a real solution

14. It’s pretty much the same process, just substitute y in for x^2. If you’re confused feel free to ask and I can do it, or you can put it through Photomath

15. You’re on the right track so I’m just going to continue from where you left off
x^2(4x+5)-4(x+5)=0
(x^2-4)(4x+5)=0
x= +/- 2 4x=5
x=5/4 or 1 1/4

Hope this helped :)

8 0

3 years ago

Read 2 more answers

A gate is made up of a rectangle and a semicircle, as shown. Find the area of the gate. Use 3.14 for .Round your answer to the n

allochka39001 [22]

Answer:

<em>797.0ft²</em>

Step-by-step explanation:

<u>Find a related diagram attached</u>

Area of the gate = Area of the semicircle + Area of the Rectangle

Area of the semicircle = πr²/2

r is the radius

From the diagram, radius r = 20/2 = 10ft

Area of the semicircle = 3.14(10)²/2

Area of the semicircle = 3.14(100)/2

Area of the semicircle = 314/2

Area of the semicircle = 157ft²

Area of the rectangle = Length * Width

Area of the rectangle = 20*32

Area of the rectangle = 640ft²

Area of the gate = 157 + 640

Area of the gate = 797ft²

<em>Hence the area of the gate is 797.0ft²</em>

7 0

3 years ago

Please show how you got the answer, thanks.

FrozenT [24]

Answer:

15.7 feet

Step-by-step explanation:

What we are looking for here is the perimeter/circumference of the table. The formula for the circumference of a circle is diameter x pi. The diameter is 2x the radius so I did 5 x 3.14, 3.14 being in place for pi. Hope this helps! : )

5 0

2 years ago

Find the common ratio of the geometric sequence: 4,3,9/4

Inessa05 [86]

Answer:

The common ratio is

$\frac{3}{4}$

Step-by-step explanation:

To find the common ratio in a geometric sequence divide the next term by the previous term

That's

The first term is 3 and the next term is 4

so the common ratio will be

Hope this helps you.

4 0

3 years ago

How can I write 0.4 in word form ?

Art [367]

Answer:

four tenths

Step-by-step explanation:

5 0

3 years ago