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zysi [14]
3 years ago
13

Is -10.5 a rational number?

Mathematics
1 answer:
sladkih [1.3K]3 years ago
5 0
Yes it is a rational number it can be expressed as a fraction
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Find the x-intercepts of the parabola with vertex (1, -9) and y intercept at (0, -6).
MaRussiya [10]
Hello,

The equation of the parabola is
y=k(x-1)²-9
and -6=k(0-1)²-9==>k=3

x-intercepts is:
y=0==> 3(x-1)²-9=0==>(x-1)²=3
==> x=1+√3 or x=1-√3
7 0
3 years ago
Given: 2x + 3y = 1470 Convert to slope intercept form to find the slope and y-intercept.
kirza4 [7]

Answer:

Slope = 2/3 and y-intercept = 490


Step-by-step explanation:

2x + 3y = 1470

3y = -2x + 1470

  y = 2/3 x + 490          <----------Slope intercept form


Slope = 2/3 and y-intercept = 490

7 0
3 years ago
Complete the 2 column proof below given j = h and line m bisects gk
prohojiy [21]
2 Colin is j = h with us like m with bisects gk is your answer
5 0
3 years ago
Sofia invests her money in an account paying 7% interest compounded semiannually. What is the effective annual yield on this acc
vfiekz [6]

Answer:

7.12

Step-by-step explanation:

The formula for the effective annual yield is given as:

i = ( 1 + r/m)^m - 1

Where

i = Effective Annual yield

r = interest rate = 7% = 0.07

m= compounding frequency = semi annually = 2

i = ( 1 + 0.07/2)² - 1

i = (1 + 0.035)² - 1

= 1.035² - 1

= 1.071225 - 1

= 0.071225

Converting to percentage

0.071225 × 100

= 7.1225%

Approximately to 2 decimal places = 7.12

Therefore, the annual effective yield = 7.12

4 0
3 years ago
Travis travel 248 miles in 4 hours what is his unit rate of speed in miles per hour
ivanzaharov [21]
248 divided by 4 equals 62 miles per hour.
8 0
3 years ago
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