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ValentinkaMS [17]
3 years ago
7

12x5 – 10x2 + x – 45

Mathematics
1 answer:
qaws [65]3 years ago
6 0
(a)
12x  ^{5}    - 10x ^{2}  + x - 45
(b)we have 4 terms in this expression.
(c)+12 is the leading coefficient in
12x ^{5}

(d) constant is -45
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Which is bigger 3/8 or 0.3
Luba_88 [7]
\frac{3}{8} \\
0.3=\frac{3}{10}

If two fractions have the same numerator, the fraction with the smaller denominator is bigger.
8\ \textless \ 10 \Rightarrow \frac{3}{8} \ \textgreater \  \frac{3}{10}

3/8 is bigger.
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3 years ago
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Describe the difference between the calculation of population standard deviation and that of sample standard deviation.
taurus [48]

Answer:

View graph

Step-by-step explanation:

The population refers to the whole set under study, while the sample is a representative part of that population.

3 0
3 years ago
Mr. Akika has 49 21 cent and 31 cent stamps all told. The stamps are worth $13.39. how many of each kind of stamps does he have?
Lana71 [14]

Mr Akika has 18  21-cent stamp and 31 31-cent stamp.  

He has 49 21-cent and 31-cent stamps all told.

let

x = number of 21 cent stamp

y = number of 31 cent stamp

Therefore,

<h3>Total number of stamp:</h3>
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<h3>Total cost of stamp:</h3>
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Therefore,

x + y = 49

21x + 31y = 1339

21x + 21y = 1029

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y = 310 / 10

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Therefore,

x = 49 - 31

x = 18

Therefore, Mr Akika has 18  21-cent stamp and 31 31-cent stamp.  

learn more on system of equation: brainly.com/question/1369852?referrer=searchResults

4 0
2 years ago
Last Saturday, Camila practiced her dance routines for her upcoming competition. She spent some time practicing her tap routine,
Natalka [10]

Answer:

t = 28 minutes

Step-by-step explanation:

Last Saturday, Camila practiced her dance routines for her upcoming competition. She spent some time practicing her tap routine, and then she spent 17 minutes practicing her hip-hop routine. In all, she practiced for 45 minutes. Let t be the number of minutes that Camila practiced her tap routine. Write and solve an equation to find t.

45 minutes = Number of minutes for hip-hop routine + Number of minutes for tap dance

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45 = 17 + t

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Shes spent 28 minutes tap dancing

4 0
3 years ago
Which order pair is a solution of this equation. 5x+y=-25
crimeas [40]

Answer:

(-5,0) or (0,-25) is another solution

Step-by-step explanation:

Do you have a list of choices? If not, you could choose random choices for x and y to determine if they are solutions. Start by letting y = 0. We see that x = -5, so (-5, 0) is a solution to this equation. In fact, it represents the x-intercept of this line. Now, let x = 0. We now see that y = -25, so (0, -25) is another solution to the equation of this line. This coordinate pair is the y-intercept of the line. Try using other values of x and y to see if you can come up with other solutions to this equation. 

7 0
3 years ago
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