3 years ago

1 point

Mathematics

1 answer:

BARSIC [14]3 years ago

7 0

The answer to this Is 38.4

You might be interested in

Bill is bisecting an angle with technology. Which of the following describes his next step?

mojhsa [17]

Answer:

the first step is correct

Step-by-step explanation:

the first step is correct

then draw 2 circles with the same radius with centre D and E ( the point BC intersect the first circle )

Where the 2 circles are intersecting is the point F

Then BF is the bisector

7 0

2 years ago

Which of the following expressions is a factor of the polynomial x 2 +3/2x-1

Elodia [21]

Answer:

$\large \boxed{\sf \ \ \ (x+2)(x-\dfrac{1}{2}) \ \ \ }$

Step-by-step explanation:

Hello,

let's solve

$x^2+\dfrac{3}{2}x-1=0\\\\ 2x^2+3x-2=0 \ \text{multiply by 2}\\\\\\$

$\Delta=b^2-4ac=9+4*2*2=9+16=25$

There are two solutions

$x_1=\dfrac{-3-\sqrt{25}}{4}\\\\x_1=\dfrac{-3-5}{4}\\\\x_1=\dfrac{-8}{4}\\\\\boxed{x_1=-2}$

And

$x_2=\dfrac{-3+\sqrt{25}}{4}\\\\x_2=\dfrac{-3+5}{4}\\\\x_2=\dfrac{2}{4}\\\\\boxed{x_2=\dfrac{1}{2}}$

So we can write

$x^2+\dfrac{3}{2}x-1\\\\=(x-x_1)(x-x_2)\\\\=(x+2)(x-\dfrac{1}{2})$

Hope this helps.

Do not hesitate if you need further explanation.

Thank you

5 0

3 years ago

Find the circumference of a circle with radius 10.3 feet . Round your answer to two decimal places.

patriot [66]

C= 2πr

r= 10.3ft

π= 22/7

C= 2×22/7 × 10.3

C= 64.74 feet

5 0

2 years ago

Read 2 more answers

Increase £240 by 30%?

laila [671]

240*0.30=72

72+240=312 euro

5 0

3 years ago

Read 2 more answers

If x=7, is this equation true? 7 + 9x > 73

Georgia [21]

Answer: No.

Step-by-step explanation:

9*7=63

63+7=70

70>73

8 0

2 years ago

Read 2 more answers