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Inessa05 [86]
2 years ago
8

Need help with my homework 2 problems

Mathematics
1 answer:
Solnce55 [7]2 years ago
5 0
4(x+2)  ,   2(2x+4)  ,  8+4x  ,   1/2(8x+16) are all the same as 4x+ 8.
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if you took a loan of fifteen million dollars from the bank and the loan is to be repaid in ten years at a simple interest of 5%
Vikki [24]

$750000 for all 10 years and $375000 for just ten years

7 0
3 years ago
Please help, thank you
irina1246 [14]

Answer:

It's kinda hard to see can you type out the question?

Step-by-step explanation:

4 0
3 years ago
Which function has the domain x>or= -11
iogann1982 [59]
I'm assuming this is multiple choice and you forgot to post the answers. I'll take a guess and say it probably looks something like this:
y = \sqrt{x + 11}
Because you can't take the square root of a negative number without getting an imaginary result, resulting in the function having a closed domain limit.
6 0
3 years ago
A circle has centre (3,0) and radius 5. The line y = 2x + k intersects the circle in two points. Find the set
lara [203]

A circle with center (3,0) and radius 5 has equation

(x-3)^2+y^2=25 \iff x^2 + y^2- 6 x  = 16

If we substitute y=2x+k in this equation, we have

x^2+(2x+k)^2-6x=16 \iff 5x^2+(4k-6)x+k^2-16=0

This equation has two solutions (i.e. the line intersects the circle in two points) if and only if the determinant is greater than zero:

\Delta=b^2-4ac=(4k-6)^2-4\cdot 5\cdot (k^2-16)>0

The expression simplifies to

-4 (k^2 + 12 k - 89)>0 \iff k^2 + 12 k - 89

The solutions to the associated equation are

k^2 + 12 k - 89=0 \iff k=-6\pm 5\sqrt{5}

So, the parabola is negative between the two solutions:

-6-5\sqrt{5}

8 0
3 years ago
How many times greater is 3400 than 340
Lelu [443]
3400 is 10 times greater than 340 because if you divide 3400 by 10, you will get 340. Letting you know that 3400 is 10(ten) times greater than 340.
3 0
3 years ago
Read 2 more answers
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