4 years ago

Let x^2−20x=10. What values make an equivalent number sentence after completing the square?

1 answer:

7 0

100 and 110.

You would have to add 100 to both sides. This is because to complete the square, you need to take half of the x term and square it.

You might be interested in

Find the total surface area of this cuboid, 5 cm 4 cm 6 cm

Tatiana [17]

Answer:

148

Step-by-step explanation:

Sa=2(lw+lh+wh)

Sa=2(4*5+4*6+5*6)

148=2(4*5+4*6+5*6)

3 0

3 years ago

Read 2 more answers

Mae sells newspaper subscriptions door-to-door. In addition to a fixed salary, she earns a commission for each subscription that

Lady_Fox [76]

The answer is y = 10x + 125

6 0

3 years ago

Read 2 more answers

Calculate the area of the given quadrilaterals.

nadya68 [22]

Answer:

dissect the trapezium into a square and triangle. since the triangle is a right angled one the base is 17-7=10cm

the height is found using Pythagorean theorem to be 24cm i.e 26²=x²+10²,x=√(676-100),x=√576,x=24cn

area of trapezium is (1/2)(a+b)h

a is the shorter side and b the longer side

(1/2)*(7+17)24

=288cm²

3 0

3 years ago

3÷2.52 what the answer I’m struggling

SOVA2 [1]

3/2.52 is 1.5
In other words it is 1 1/2

3 0

3 years ago

Given that 110ₓ = 40₅ , find the value of x.

MrRa [10]

Answer:

x = 4

Step-by-step explanation:

110ₓ = 40₅ --------- change all to base ten.

the system called binary

1x²+1x ¹+0x⁰ = 45¹+0*5⁰

x² + x + 0 = 20

x² + x – 20 = 0

solve x using Quadratic equation

-1 ± $\sqrt{1^2 - 4* 1 (-20)}$

x = ------------------------------------

2 * 1

x = -5; x = 4

therefore, x = 4

3 0

3 years ago