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zimovet [89]
3 years ago
10

2. The sum of two times a number squared and four

Mathematics
2 answers:
MaRussiya [10]3 years ago
5 0

Answer:

2·x²+4

Step-by-step explanation:

The sum is an answer to an addition problem and 2 times a number means to multiply by 2.  That number is squared so you it's to the second power.

Deffense [45]3 years ago
5 0

Answer:

2•n^2+4=sum

Step-by-step explanation:

If two times a

number squared and four = sum,

then 2 • n^2 + 4 = sum

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Estimate 12.59 _ 7.68 to the nearest whole number​
slega [8]

Answer:

13_8

Step-by-step explanation:

if the first number in the decimal is 5 or up then you round up if its 4 or less you round down meaning it would be 13 and 8

8 0
3 years ago
A car's velocity is modeled by
Igoryamba

In accordance with the function <em>velocity</em>, the car will have a complete stop after 6 seconds.

<h3>When does the car stop?</h3>

Herein we have a function of the velocity of a car (v), in feet per second, in terms of time (t), in seconds. The car stops for t > 0 and v = 0, then we have the following expression:

0.5 · t² - 10.5 · t + 45 = 0

t² - 21 · t + 90 = 0

By the <em>quadratic</em> formula we get the following two roots: t₁ = 15, t₂ = 6. The <em>stopping</em> time is the <em>least</em> root of the <em>quadratic</em> equation, that is, the car will have a complete stop after 6 seconds.

To learn more on quadratic equations: brainly.com/question/2263981

#SPJ1

8 0
1 year ago
170000 in scientific notation
erma4kov [3.2K]
The answe is 1.7x10 exponent 5
5 0
3 years ago
Can you guys do it all I will brainlist you
Vesnalui [34]

Answer:

a. 0.948

 = 1

b. 34.972

 = 35

c. 4.013

 = 4

d. 48.671

 = 49

e. 9.05

 = 9

f. 56.143

 = 56

g. 12.489

  = 12

h. 66.701

  = 67

i. 20.87

 = 21

j. 79.862

 = 80

k. 26.187

 = 26

l. 92.557

 = 93

Exercise 2

a. 1.521

 = 1.5

b. 4.037

  = 4.04

c. 19.232

  = 19.2

d. 41.691

  = 41.69

e. 83.888

 = 83.9

6 0
2 years ago
If f(x)<br> 2x – 1 and g(x)<br> =<br> x2 - 2, find [g - fl(x)
xxMikexx [17]

Answer:

f(x) = 2x - 1

g(x) = x² - 2

[ g - f] (x) = x² - 2 - 2x + 1

= x² - 2x - 1

Hope this helps.

5 0
2 years ago
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