Answer:
35.9 grams
Step-by-step explanation:
We use the formula:

Where
q is heat released
m is mass
C_p is the constant 2.44
ΔT is change in temperature
We put the info in the formula and solve for m (mass):

The mass of ethanol is 35.9 grams
THE ANSWER WOULD BE X=2/3
Answer:
<em>The probability that the next flower seed will sprout is 0.667 or 66.7%</em>
Step-by-step explanation:
<u>Probability</u>
The experimental or empirical probability can be defined as the ratio of the number of times an event occurs to the total number of times the random activity was performed.
It can be calculated as the relative frequency of an event A in a sample space. The question states 32 seeds of a certain flower sprout out of 48 planted seeds. The relative frequency of success is computed as

Thus, the probability that the next flower seed will sprout is 0.667 or 66.7%
Answer:
first method
<u>2</u><u>2</u>=<u>5</u>
7. x
we cross multiply to get
<u>2</u><u>2</u><u>x</u>= <u>5</u><u>×</u><u>7</u>
22. 22.
x= <u>3</u><u>5</u>
22
=1.59
second method
<u>2</u><u>2</u>=<u>5</u>
7. x
we multiply the denominators to get 7x
then we multiply each term by 7x
7x×<u>2</u><u>2</u> = <u>5</u>×7x
7. x
here the 7 and 7 will cancel out and the x and x will cancel out to get
<u>2</u><u>2</u><u>x</u>= <u>3</u><u>5</u>
22. 22
= 1.59
X =(-8+√464)/-8=1-1/2√<span> 29 </span><span>= -1.693</span>