2 years ago

Could someone please help me with this

Mathematics

1 answer:

kicyunya [14]2 years ago

7 0

Answer: i think it would be D

Step-by-step explanation:

You might be interested in

What number is 80% of 90?

Lerok [7]

The answer is 72

b/c 80% is equal to .80

so you do 90x.80

4 0

2 years ago

Newton’s law of cooling states that the temperature of an object changes at a rate proportionalto the difference between the tem

Verizon [17]

Answer:

$\frac{dT}{dt} = -0.05\;min^{-1} (T-70\ºF)$

Step-by-step explanation:

Hi!

Lets call:

T = temprature of the object

T₀ = temperature of surroundings

t = time

The rate of change of T is its derivative with respecto to time. If T > T₀, the object looses heat, so T decreases. Then, being k > 0:

$\frac{dT}{dt} = -k(T-T_0) \\$

In this case T₀ = 70ºF and k = 0.05/min. Then the differential equation is:

$\frac{dT}{dt} = -0.05\;min^{-1} (T-70\ºF)$

3 0

3 years ago

The ___________ is how steep a straight line is.

Aleonysh [2.5K]

The answer is D. Slope

8 0

3 years ago

Read 2 more answers

Evaluate g(n- 7) if g(x) = x^2-6/7x

noname [10]

Step-by-step explanation:

g(n-7) = (n-7) ^2-6/7 (n-7) = n^2 -14n+49-6/7 n +6= n^2-104/7 n +55

5 0

2 years ago

An ice skater practiced for 18 hours last week. In that time, she did 306 jumps. On the average, how many jumps did she try per

Kaylis [27]

Answer:

Step-by-step explanation:

306/18=17

3 0

3 years ago

Could someone please help me with this​

Could someone please help me with this