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Ainat [17]
3 years ago
10

ellie is preheating her oven before using it to bake. the initial temperature of the oven is 65° and the temperature will increa

se the rate of 10° per minute after being turned on what is the temperature of the oven six minutes after being turned on what is the temperature of the oven 10 minutes after being turned on
Mathematics
1 answer:
11111nata11111 [884]3 years ago
8 0

Answer:

The temperature of the oven after 6 minutes is 125 degrees and after 10 minutes its 165 degrees.

Step-by-step explanation:

10 x 6 = 60

60+65=125

10 x 10 = 100

100+65=165

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Which of the following is an x-intercept of the function, f(x) = x® + 3х2 – 10x – 24?
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What is x-31=112<br><br><br>please help​
Oliga [24]

Answer:

143

Step-by-step explanation:

x-31=112

Add 31 to both sides,

x - 31 = 112

  +31    +31

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2 years ago
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Two spray paint machines are used to paint different portions of a large wall. The first machine (nicknamed "Paint Pro") is used
jonny [76]

Answer: The answer is 30 sq.ft/min and 25 sq.ft/min.


Step-by-step explanation:  Given that there are two spray paint machines. The first machine (nicknamed "Paint Pro") is used for two hours and the second machine (nicknamed "Goldilocks") is used for an hour and a half. When they are working at the same time, they can paint 55 square feet per minute and together they painted 5850 square feet of wall.

Let 'x' and 'y' sq.ft/min be the portion of the wall painted by Paint Pro and Goldilocks respectively.

Then, according to the question, we have

x+y=55,\\\\120x+90y=5850~~\Rightarrow 4x+3y=195.

Multiplying first equation by 4 and subtracting the second equation from it, we have

4y-3y=220-195\\\\\Rightarrow y=25,

and

x=55-25=30.

Thus, Paint Pro will paint 30 sq.feet per minute and Goldilocks will paint 25 sq.ft per minute.

4 0
2 years ago
What is the equation of the circle with center (5,-4) and containing the points (5,-2)
gtnhenbr [62]

Answer:

The equation of a circle is (x-5)^2+(y+4)^2=4 .

Step-by-step explanation:

-The equation of a circle is:

(x-h)^2+(y-k)^2=r^2 (where center is (h,k), the point (x_{1},y_{1}) and the radius known as r).

-Use the center (5,-4) and the point (5,-2) for the equation:

(5-5)^2+(-2+4)^2=r^2

-Solve the equation:

(5-5)^2+(-2+4)^2=r^2

0 + (-2)^2=r^2

4 = r^2

\sqrt{4} = \sqrt{r^2}

2 = r

-After you found the radius, use the center (5, -4)  and radius 2 to get the equation of a circle:

(x-5)^2+(y+4)^2=2^2

-Then, after you have the equation, the radius needs to simplified by the exponent:

(x-5)^2+(y+4)^2=4

3 0
3 years ago
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