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2 years ago

Guided Practice

Mathematics

1 answer:

s2008m [1.1K]2 years ago

6 0

Answer:

1.125%; 0.375%

Step-by-step explanation:

Quarterly interest rate is 4.5 / 4 = 1.125%.

Monthly rate is 4.5 / 12 = 0.375%.

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An airplane is flying at a speed of 500 mi/h at an altitude of one mile. The plane passes directly above a radar station at time

d1i1m1o1n [39]

Answer:

a) $s=\sqrt{1+d^2}$

b)d(t)=500t

c) $s(t) =\sqrt{1+250000t^2}$

Step-by-step explanation:

d = Horizontal distance

s = the distance between the plane and the radar station

The horizontal distance (d), the one mile altitude, and s form a right triangle.

So, use Pythagoras theorem

$Hypotenuse^2=Perpendicular^2+Base^2$

$s^2=1^2+d^2$

a) $s=\sqrt{1+d^2}$

(b) Express d as a function of the time t (in hours) that the plane has flown.

$distance = speed \times time$

d(t)=500t

$s(t) =\sqrt{1+d^2}$

using b

$s(t) =\sqrt{1+(500t)^2}\\s(t) =\sqrt{1+250000t^2}$

6 0

2 years ago

2 - ( - 8 ) + ( - 3 ) =

solmaris [256]

Hey!

First, let's write the problem.
$2-\left(-8\right)+\left(-3\right)$
We know that, $-\left(-8\right)=+8$ , so let's apply that
$=2+8+\left(-3\right)$
We have to add, $2+8=10$
$=10+\left(-3\right)$
We know that $+\left(-3\right)=-3$ , so let's apply that.
$=10-3$
Subtract. $10-3=7$
$=7$

Our final answer would be 7!

Thanks!
-TetraFish

3 0

2 years ago

I added two photos for clarity but the first one is the original

podryga [215]

Answer:

true

Step-by-step explanation:

4 0

2 years ago

1,200 students chose meat lasagna and 400 chose vegetable and spinach lasagna, what percent of students chose vegetable and spin

gladu [14]

400/1600 =25%

Explanation:

Total=1,200+400=1,600

5 0

2 years ago

Read 2 more answers

(X+m)(c+n) if m=5 and n=-7

oksian1 [2.3K]

Answer: -7/5

Step-by-step explanation:

x = - 5cm^2 - 7m^2 + 35/ m (5c - 7), C = (cross out the equal sign) 7/5 and m = (cross out the equal sign) 0 and n = -7/5

5 0

1 year ago