MATHEMATICS COLLEGE

Which equation represents a circle with a center at (–3, –5) and a radius of 6 units?

Answers

Answer 1

Answer:

Answer:

Step-by-step explanation:

The general equation of the circle is:

(x-h)²+(y-k)²=r²

(h, k)=(-3,-5) are the coordinates of the center of the circle.

r=6 is the radius

The equation of the circle is:

(x+3)²+(y+5)² = 36

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-3 < 5 true or false

PLEASE help me please

Answers

the answer to this is B

Find the slope of the line through (-6,-3) and (0,3)

Answers

slope is rise over run
rise (delta y) run (delta x)
delta= change in

rise 3-(-3) = 6
run 0-(-6) = 6

6/6 = 1,
slope is 1

7th grade mathThe sales tax on an item is 6.5%. The total cost of the item is the price, p, plus the tax. Which expression represents the total cost?
A. 0.935p B. p + 1.065p C. 1.065p D. p + 6.5p

Answers

Answer:

Step-by-step explanation:

You add tax to the price not multiply

Answer:1.065p

Step-by-step explanation:

Someone help me on this.

Answers

Answer:

$-57-39i$

Step-by-step explanation:

So we have the expression:

$(7+2i)(-9-3i)$

FOIL:

$=7(-9)+7(-3i)+2i(-9)+2i(-3i)$

Simplify:

$=-63-21i-18i-6i^2$

Recall that i² is just -1. Thus:

$=-63-21i-18i-6(-1)$

Simplify:

$=-63-21i-18i+6$

Combine like terms:

$=(-63+6)+(-21i-18i)$

Add:

$=-57-39i$

And we're done!

If log(x+3)-log(x-5)=log2What is the value of x?

Please answer with explanation and process

Answers

We use log(x) - log(y) = log(x/y) and log(x) = log(y) ⇔ x = y

$\displaystyle\log(x+3) - \log(x-5) = \log 2 \implies \log\left( (x+3)/(x-5) \right) = \log 2 \implies \n \n (x+3)/(x-5) = 2 \impliesx+3 = 2(x-5) \n \nx = 13$

Aiden attended school for 408 minutes, played basketball for 138 minutes, and worked on homework for 111 minutes. Estimate how much time he spent doing these activities by rounding to the nearest ten first and then adding the rounded numbers.

Answers

Answer:

well 660

Step-by-step explanation:

well frist we will have to subtract 408 with every other number

408-138=270

270-111=159

this is what he had left

but if it's the other way around 410+140+110=660

Other Questions

B is the midpoint of AC, D is the midpoint of CE , and AE = 23. Find BD.12.54611.523

Paul owns a mobile wood-fired pizza oven operation. A couple of his clients complained about his dough at a recent catering, so he changed his dough to a newer product. Using the old dough, there were 6 complaints out of 385 pizzas. With the new dough, there were 16 complaints out of 340 pizzas. Let p 1 be the proportion of customer complaints with the old dough and p 2 be the proportion of customer complaints with the new dough. State the competing hypotheses to determine if the proportion of customer complaints using the old dough is less than the proportion of customer complaints using the new dough g

A couch sells for $820. Instead of paying the total amount at the time of purchase, the same couch can be bought by paying $400 down and $60 per month for 12 months. How much is saved by paying the total amount at the time of purchase?

Y=6cosx^2 (derivative)