2 years ago

Are angles OBC and ODC equivalent?

Mathematics

1 answer:

Olenka [21]2 years ago

4 0

yeah, they probably are because 360-130-50=180 and both of the angles look like they could be 90 degrees

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A population of a small town has a size of 6000 at time t=0, with t representing years. 1. if the population increases by 80 peo

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F(t)=6000 +80t or
f(t)=p+80t

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2 years ago

if I bought a laundry basket at $7.50 and it was marked down 20% what would that be and the sales tax is 1% what is the total co

rodikova [14]

Answer:

a) marked-down price = $6.00

b) with-tax cost = $6.06

Step-by-step explanation:

a) The amount of the markdown is ...

0.20 × $7.50 = $1.50

so the marked-down price is ...

$7.50 - 1.50 = $6.00

b) The sales tax is ...

0.01 × $6.00 = $0.06

so the total cost with tax is ...

$6.00 + 0.06 = $6.06

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Of course, you know that 20% = 20/100 = 0.20, and 1% = 1/100 = 0.01.

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3 years ago

Using the following equation, find the center and radius of the circle. You must show all work and calculations to receive credi

Vikki [24]

The equation of the circle: $(x-a)^2+(y-b)^2=r^2$

where:
(a; b) - coordinates of the center
r - a radius

Use: $(a\pm b)^2=a^2\pm2ab+b^2\ \ \ \ (*)$

We have:

$x^2-4x+y^2+8y=-4\\\\x^2-2x\cdot2+y^2+2y\cdot4=-4\ \ \ |add\ 2^2\ and\ 4^2\ to\ both\ sides\\\\\underbrace{x^2-2x\cdot2+2^2}_{(*)}+\underbrace{y^2+2y\cdot4+4^2}_{(*)}=-4+2^2+4^2\\\\(x-2)^2+(y+4)^2=-4+4+16\\\\(x+2)^2+(y-4)^2=16\\\\(x+2)^2+(y-4)^2=4^2$

Answer:
The center: (-2; 4)
The radius: r = 4

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3 years ago

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Vasko was renting a high performance bicycle for his Olympic training. Bicycle A is $25 per month and requires a down payment of

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he would need to rent it for a year or 12 months

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3 years ago

5.6=I+4.09 what is I? I need help I just need answers in the 10 minutes please helpp

serious [3.7K]

Answer:

the answer should be I= 1.51