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Ludmilka [50]
3 years ago
13

Four streets enter a traffic circle at points A B C and D name six arcs formed by the streets.

Mathematics
1 answer:
lilavasa [31]3 years ago
5 0
Arcs are just sections of the circle
so lets say you had a pizza

and you put some points on the crust, the legnth of the crust from point to point is that arc

example
if you put poins A and B, then arc AB is the crust between points A and B

arcs can include other points as well
 and arc AB=arc BA


so
I wil name easy arcs first
arc AB
arc BC
arc CD
ard DA

now ones that include others
arc AC
arc BD

so the arcs you might want to list are
 
arc AB
arc BC
arc CD
ard DA
arc AC
arc DB

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klio [65]

I didn't get all the part with the tiles, but here's the general answer:

given a polynomial

p(x)=ax^2+bx+c

we have that x-k is a factor of p(x) if and only if k is a root of p(x), i.e. if

p(k)=ak^2+bk+c=0

So, given the polynomial

p(x)=x^2-9x+14

We can check if x-9 is a factor by evaluating p(9):

p(9)=81-81+14=14\neq 0

So, x-9 is not a factor.

Similarly, we can evaluate p(2),\ p(-5),\ p(-7) to check if x-2,\ x+5,\ x+7 are factors:

p(2)=4-18+14=0,\quad p(-5)=25+45+14=84\neq 0,\quad p(-7)=49+63+14=126 \neq 0

So, only x-2 is a factor of x^2-9x+14

4 0
3 years ago
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The sum of the square of the number and a second number is 42
AveGali [126]

Step-by-step explanation:

x+x squared =42. The square of the number is the number square. By my incredibly accurate guess and check strategy (works most of the time )6*6 = 36+6=42

3 0
3 years ago
1.
Komok [63]

Answer:

Future amount (A) = $1,258.77 (Approx)

Step-by-step explanation:

Given:

Amount deposit (p) = $693

Rate of interest monthly (r) = 4.9% / 12 = 0.003833

Number of month (n) = 13 × 12 = 156

Find:

Future amount (A)

Computation:

A = p [1+r]^n \\\\ A = 693 [1+0.003833]^{156}\\\\ A= 693[1.8163]\\\\ A = 1258.77

Future amount (A) = $1,258.77 (Approx)

6 0
3 years ago
PLEASE HELP ME!!! there's an equation: y × 6 for y = 2/3. what the heck is the y?!​
ElenaW [278]

Answer:

y equals 2/3. u have to do 2/3 ×6 I'm pretty sure

6 0
3 years ago
Paisley is going to invest in an account paying an interest rate of 3.8% compounded monthly. How much would Paisley need to inve
victus00 [196]

Answer:

Step-by-step explanation:

Use the formula

A(t)=P(1+\frac{r}{n})^{nt}

Fill in the info we are given:

1210=P(1+\frac{.038}{12})^{(12)(6)} and

1210=P(1.003166667)^{72} and

1210 = P(1.255632915) so

P = $964

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