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2 years ago

Please help. Trying to find the missing measure. Explanations needed

Mathematics

1 answer:

andrew-mc [135]2 years ago

8 0

Answer:

l=5.1in

r=2.4in

Step-by-step explanation:

size increase of 50% so just add (+50%) to both existing values

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Angles and polygons

Andre45 [30]

Answer:

∠1 = 66°

Step-by-step explanation:

∠1 + ∠3 = ∠4 (exterior angle theorem)

∠1 + 57° = 123°

∠1 = 66°

8 0

2 years ago

3.721 to the nearest hundredths place

12345 [234]

Hundredths is the second digit after the decimal point, so the 2
the number next to it (1) is less than 5, so the number is rounded down to 3.72

3 0

3 years ago

Read 2 more answers

A newspaper is launching a new advertising campaign in order to increase the number of daily subscribers. The newspaper currentl

BARSIC [14]

Answer:

57 days

Step-by-step explanation:

Given that:

t(0) = 26000

Growth rate (S'(t)) = 80t^1/2

Targeted number of subscribers = 49000

Take the integral of the growth rate :

∫80t^1/2dt = [(80t^(1/2 + 1)) / 1/2 + 1] + C

[(80t^(1/2 + 1)) / 1/2 + 1] + C = (80t^3/2) / 3/2 + C

(80t^3/2) * 3/2 + C = (160/3)t^3/2 + C

(160/3)t^3/2 + C

Let C = t(0)

(160/3)t^3/2 + 26000 = 49000

(160/3)t^3/2 = 49000 - 26000

(160/3)t^3/2 = 23000

Multiply both sides by 3/160

t^3/2 = 23000* 3/160

t^3/2 = 69000/160

t^3/2 = 431.25

t^(3/2 * 2/3) = 431.25^2/3

t = 57.080277

t = 57 days (approx.)

6 0

2 years ago

what is the slope-intercept form of the equation of the line that passes through the point (–6, 1) and is perpendicular to the g

katen-ka-za [31]

Line II
2x+3y=-5
3y=-2x-5
y= $\frac{-2}{3} x- \frac{5}{3}$

Gradient m= $\frac{-2}{3}$
Gradient of line I will be;
$\frac{-2}{3} *m=-1$
m= $\frac{3}{2}$
Equation of line I;
y=mx+c
y= $\frac{3}{2} x+c$
Finding value of c by replacing for;
y=1
x=-6
1= $\frac{3}{2} *(-6)+c$
c=10
y= $\frac{3}{2} x+10$