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GaryK [48]
3 years ago
13

GUYS I NEED FIVE SENTECES!!!! IM GIVING BRAINLIEST!

Mathematics
1 answer:
Misha Larkins [42]3 years ago
7 0

Answer:

Exothermic reactions release heat and light into their surroundings. For example, combustion reactions are usually exothermic. In exothermic reactions, the products have less enthalpy than the reactants, and as a result, an exothermic reaction is said to have a negative enthalpy of reaction.

Step-by-step explanation:

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Ed has 30 sweets. The ratio of red sweets to yellow sweets is 2:3 How
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Answer:

The ratio of red sweets to yellow sweets is 12.

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1.

Step-by-step explanation:

5 0
2 years ago
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Assume that a sample is used to estimate a population proportion p. find the margin of error e that corresponds to the given sta
Leno4ka [110]

Let p be the proportion. Let c be the given confidence level , n be the sample size.

Given: p=0.3, n=1180, c=0.99

The formula to find the Margin of error is

ME = z _{\alpha/2}  \sqrt{\frac{p*(1-p)}{n}}

Where z (α/2) is critical value of z.

P(Z < z) = α/2

where α/2 = (1- 0.99) /2 = 0.005

P(Z < z) = 0.005

So in z score table look for probability exactly or close to 0.005 . There is no exact 0.005 probability value in z score table. However there two close values 0.0051 and 0.0049 . It means our required 0.005 value lies between these two probability values.

The z score corresponding to 0.0051 is -2.57 and 0.0049 is -2.58. So the required z score will be average of -2.57 and -2.58

(-2.57) + (-2.58) = -5.15

-5.15/2 = -2.575

For computing margin of error consider positive z score value which is 2.575

The margin of error will be

ME = z _{\alpha/2}  \sqrt{\frac{p*(1-p)}{n}}

= 2.575  \sqrt{\frac{0.30*(1-0.3)}{1180}}

= 2.575 * 0.0133

ME = 0.0342

The margin of error is 0.0342

7 0
2 years ago
Horse races are often measured in furlongs. Oakland Park is 6 furlongs. How long is that in miles? (1 furlong = 1/8 mile)
Pachacha [2.7K]
1 furlong = 1/8 miles
6 furlongs = x miles
xmiles = 1/8(6 furlongs)
Xmiles= 3/4 miles
Which is 0.75 miles



Please give my answer the brainliest
7 0
3 years ago
if traveled a distance of 643 feet how many kilometers did the ball travel? round to the nearest hundredth?
Makovka662 [10]
0.20km is the answer. 

Explanation: 1ft = 30.48cm
6 0
3 years ago
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