3 years ago

A science test, which is worth 100 points, consists of 24 questions. Each question is worth either 3 points or 5 points. If x is

Mathematics

1 answer:

Luba_88 [7]3 years ago

8 0

Test contains 10 three-point questions and 14 five-point questions.

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A store is instructed by corporate headquarters to put a markup of 25% on all items. An item costing $16 is displayed by the s

tigry1 [53]

Answer:

$20

Step-by-step explanation:

the manager's error could likely be putting the percentage mark up rather than the markup price added to the original price

25%×16

= $4

mark up price= (16+4)$

= $20

7 0

2 years ago

A car was purchased for $20,000 new. Each year, you can expect the car to

alexandr1967 [171]

Answer:

It will be worth 16k in 10 years

Step-by-step explanation:

divide 20k by 100

1% = 200 dollars

200 x 8 gives you 1.6k

1.6k x 10 = 16k

3 0

3 years ago

Read 2 more answers

20. Q(-1, 4), R(-1, -9), S(11, -2), T(11, 6)

s2008m [1.1K]

Answer:

Parallel

Step-by-step explanation:

QR and ST both parallel to y axis.

3 0

3 years ago

Evaluate the given integral by changing to polar coordinates. sin(x2 y2) dA R , where R is the region in the first quadrant betw

alexira [117]

Answer:

I = 1.47001

Step-by-step explanation:

we have the function

$f(x,y)=sin(x^2y^2)\\$

In polar coordinates we have

$x=rcos\theta\\y=rsin\theta$

and dA is given by

$dA=rdrd\theta$

Hence, the integral that we have to solve is

$I=\int \limt_2^4 \int \limit_0^{\pi /2}sin(r^4cos^2\theta sin^2\theta)rdrd\theta$

This integral can be solved in a convenient program of your choice (it is very difficult to solve in an analytical way, I use Wolfram Alpha on line)

I = 1.47001

Hope this helps!!!

7 0

3 years ago

PLEASE HELP IN IMAGE nonsense will be reported

Degger [83]

The answer is -2. The line is going from left to right which makes it negative. Then if you look at the line and do change in y(rise) over change in x(run).

8 0

3 years ago