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SVEN [57.7K]
3 years ago
11

How how do you how do you estimate 4.23-2.51

Mathematics
2 answers:
Rus_ich [418]3 years ago
8 0
Hi CuteFace ! Estimating is an easier way to find out an answer ! To estimate this particular problem you have to round both the numbers so 4.23 would round to 4 and 2.51 would round to 3 . 4-3=1
scoray [572]3 years ago
5 0

Answer:

If you round it would be 4-3=? . If the decimal is above .50 then you would go up one number in the ones place if it is not then it stays the same.

Step-by-step explanation:

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The first term in the expansion of the binomial (3x y)4
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(3xy)^4=3^4x^4y^4=\boxed{81x^4y^4}
4 0
3 years ago
A doctoral student wants to determine the relationship between steps per minute and the time it takes to walk 100 feet in
Rina8888 [55]

Using correlation coefficients, it is found that that the correct option is given as follows:

The correlation would stay the same because the change in units for time would have no effect on it.

<h3>What is a correlation coefficient?</h3>
  • It is an index that measures correlation between two variables, assuming values between -1 and 1.
  • If it is positive, the relation is positive, that is, they are direct proportional. If it is negative, they are inverse proportional.
  • If the absolute value of the correlation coefficient is greater than 0.6, the relationship is strong.

The correlation coefficient does not have units, hence if the units of the measures is changed, the coefficient remains constant, which means that the correct option is given by:

The correlation would stay the same because the change in units for time would have no effect on it.

More can be learned about correlation coefficients at brainly.com/question/25815006

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7 0
2 years ago
Tom bought one third pickles as many pickles as alexa. Together their pickles cost 56p. How many pickles did they each buy?
nordsb [41]

Answer:

Step-by-step explanation:

let    pickle bought by alexa =x

then according to given condition ,

pickle bought by Tom= (1/3) of Alexa

pickle bought by Tom= (1/3) x

hence also given

totall pickle cost = Tom cost + alexa cost = 56p

(1/3)x+x=56

taking L.C.M

(4/3)x=56

x=56*3/4

x=42 p

so it means,

<h2>Alexa cost = x = 42p</h2><h2>Tom cost = (1/3)x= (1/3)*42 = 14 p</h2>
7 0
3 years ago
Im so scared because if i get 1 more wrong i dont pass please help
sesenic [268]
The answer is parallelograms :-)
6 0
3 years ago
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A scale drawing of a boat is 15 centimeters long. If the drawing uses a scale of 1 centimeter = 1.5 feet, how long many feet lon
matrenka [14]

Answer:

22.5 ft

Step-by-step explanation:

1/1.5=15/x

cross multiply and solve

22.5

5 0
3 years ago
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