MATHEMATICS HIGH SCHOOL

Help me please cant figure it out
D;
Help me please cant figure it out D; - 1

Answers

Answer 1
Answer:

supplementary angles sum up to 180°, so let's say we have two angles, a and b, a + b = 180, but we know that a is twice the measure of her partner, so a = 2b.

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A pest control company sprays insecticide around the perimeter of a 460 ft by 320 ft building. If the spray costs $0.12 per foot, how much did the job cost to the nearestdollar?
OA. 5187
OB. 51.766
OC. $147
OD. 594

Answers

Answer:

$187.20

Step-by-step explanation:

P=2x+2y

P=2(460')+2(320')

P=920'+640'

P=1560'

Cost is $0.12 per foot we have 1560 feet

1560 X 0.12 = $187.20

If you put a $160 coat on layaway and make a 25% deposit, what is the balance owed?

Answers

25% of $160

= (25/100) * 160

= 0.25 * 160

= 40

$40 paid.

Balance owed = $160 - $40 = $120

Balance owed = $120

What is the approximate value of y − x? (a.) 4.9° (b.) 6.2° (c.) 11.1° (d.)17.2°   Its not A

Answers

Since it is a right angled triangle.

tan x = 14.1/19.1

tan x ≈ 0.7382

x ≈ tan⁻¹(0.7382)    use a calculator.

x ≈ 36.4°

Since x and y are adjacent angles of right angled triangle.

x + y = 90°

x = 90° - 36.4°

x = 53.6°

y - x ≈ 53.6° - 36.4°

y - x ≈ 17.2°

Option D.
It is tan^(-1)(19.1/14.1)-tan^(-1)(14.1/19.1)=17.2degree D

What is the constant rate of change for this

Answers

Answer:

6 times............ I think

Where in real life do people use parabolas?
*apart from maths classrooms and mathematicians.

Answers

The mirrors of reflecting telescopes are parabolas.
The microwave "dish" antennas on cell towers are parabolas. So are the little dishes on garage roofs and the corners of houses, receiving satellite TV all over the country.
The shell behind the light bulb in every car headlight is a parabola.

If the trends in this table continue , after how many years y will the population of Manchester , NH be more than the population of Vallejo , CA ? Round your answer to the nearest tenth of a year

Answers


As soon as I read the first line and saw the words "in this table", I knew in my
guts that when I opened the question and saw the whole thing, there would be
no table.  So I opened it and, sure enough, my guts were correct again.

Nobody ... including you ... can answer this question without seeing the table. 
Maybe that's been your whole problem, and the reason you're having trouble
with it.  Sit down, relax, and spend some time with the table.
Table:City: Lakewood, CoPopulation (2004): 141,301Population Change (2003): -830City : Vallejo, CAPopulation (2004): 118,349Population change (from 2003): -1155City: Carrollton, TXPopulation(2004): 117,823Population change (2003): +1170City: ManchesterPopulation (2004): 109,310Population change (from 2003): +261
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