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notsponge [240]

3 years ago

13

Kate purchased an antique car for $40,000. It increased in value in the first year by 8% then decreased in value by 7%. What is

the value of the car now?
(help with the work would be awesome !)

2 answers:

Molodets [167]3 years ago

6 0

$40,400 .. (hope I was helpful) :)

scZoUnD [109]3 years ago

6 0

The answer would be $40,400

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in triangle ABC shown below, L is the midpoint of BC, M is the midpoint of AB, and N is the midpoint of AC. Find the perimeter o

alexdok [17]

35

since m and n are the midpoints of ab and ac resistively

then ,bc=2mn=16

since m and l are the midpoints of ba and bc respectively

then, ac =2mn =10

then,nc =1/2 × 10 =5

similary, mb=6

then ,perimeter=nc+mb+mn+bc=5+6+8+16=35

6 0

3 years ago

Does the system have no solution?

kvv77 [185]

Answer:

$\mathrm{A)\:}-6$

Step-by-step explanation:

Notice that in the second equation, the coefficient of $y$ is $2$ times greater than in the first. Therefore, by making the coefficient of $x$ in the second equation $2$ times greater than in the first, it's impossible to only isolate one variable.

Therefore, when $a=-3\cdot 2=\fbox{-6}$ , there are no solutions to this system.

6 0

3 years ago

How many solutions are there to the equation

GREYUIT [131]

Answer:B

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

According to a survey, 62% of murders committed last year were cleared by arrest or exceptional means. Fifty murde committed las

alexira [117]

Answer:

a) The probability that exactly 41 of the murders were cleared is 0.0013

b) The probability that between 36 and 38 of the murders, inclusive, were cleared is 0.0809.

c) Yes, it would be unusual

Step-by-step explanation:

Let p=62% considered as the probability of having a commited that is cleared by arres or exceptional means. We assume that choosing each of the 50 commited is independent of each choose. Then, let X be the number of cleared. In this case, X is distributed as a binomial random variable. Recall that, in this case,

$P(X=k) = \binom{50}{k} p^{k}(1-p)^{50-k}$ for $0\leq k \leq 50$ , with p=0.62

a) We have that

$P(X=40) = \binom{50}{40} p^{40}(1-p)^{50-40} =0.001273487$

b) We are asked for the following

$P(36\leq X \leq 38) = P(X=36)+P(X=37)+P(X=38) = 0.080888936
$ (The specific calculation is omitted.

c) We will check for the following probability $P(X\leq 19)$

$P(X\leq 19 ) = \sum_{k=0}^{19} P(X=k) = 0.000499222
$

Given that the probability of this event is really close to 0, it would be unusual if less than 19 murders are cleared.

4 0

2 years ago

E and F are complementary. If m E = 9x - 38 and mF = 2x + 40, find m F pls I need help

larisa86 [58]

Answer:

<h2>m $\angle$ F = 34°</h2>

Step-by-step explanation:

If E and F are complementary I means that the sum of their angles add up to 90° since all complementary angles have the sum of their angles equal to 90°

To find m $\angle$ F add m $\angle$ E and m $\angle$ F and equate it to 90 to find x then substitute it into the expression for m $\angle$ F

Thats

m $\angle$ E + m $\angle$ F = 90

$\rarr$ 9x - 38 + 2x + 40 = 90

$\rarr$ 11x + 2 = 90

$\rarr$ 11x = 90 - 2

$\rarr$ 11x = 88

Divide both sides by 11

x = 8

Now we have

if m $\angle$ F = 9x - 38

m $\angle$ F = 9( 8) - 38

m $\angle$ F = 72 - 38

We have the final answer as

<h3>m $\angle$ F = 34°</h3>

Hope this helps you

4 0

3 years ago