1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Svetlanka [38]
2 years ago
9

Can someone plz help me

Mathematics
2 answers:
lidiya [134]2 years ago
4 0

Answer:

The answer is C. <u>5</u><u><em>a² - </em></u><u>4</u><u><em>a</em></u><u> + 1 </u>

<h3>Step- by- Step:</h3>

<em>First you want to Distribute the Negative Sign:</em>

= 10a² + 3 − 5a + −1 (2 + 5a² − a)

= 10a² + 3 + −5a + (−1) (2) + −1 (5a²) + −1 (−a)

= 10a² + 3 + −5a + −2 + −5a² + a

<em>Add Like Terms:</em>

= 10a² + 3 + −5a + −2 + −5a² + a

= (10a² + −5a²) + (−5a + a )+( 3+ −2)

<u>= 5a² + −4a + 1</u>

<h3>Happy To Help! :)</h3>

Allisa [31]2 years ago
3 0

Answer:

i think its c

Step-by-step explanation:

You might be interested in
When the velocity v of an object is very​ large, the magnitude of the force due to air resistance is proportional to v squared w
Sati [7]

Answer:

Step-by-step explanation:

The model fo the shell is given by the following equation of equilibrium:

\Sigma F = -b\cdot v^{2} - m\cdot g = m\cdot \frac{dv}{dt}

This first-order differential equation has separable variables, which are cleared herein:

\int\limits^t_{0\,s} \, dt = -\frac{m}{b} \int\limits^{0\,\frac{m}{s} }_{600\,\frac{m}{s} } {\frac{1}{ v^{2}+\frac{m}{b}\cdot g } } \, dv

The solution of this integral is:

t = -\frac{m}{2b}\cdot \left[\tan^{-1} \left(\frac{v}{\sqrt{\frac{m\cdot g}{b} } }\right) - \tan^{-1} \left(\frac{600}{\sqrt{\frac{m\cdot g}{b} } }\right)\right]

\tan^{-1} \left(\frac{v}{\sqrt{\frac{m\cdot g}{b} } }  \right)=-\frac{2\cdot b\cdot t}{m} + \tan^{-1}\left(\frac{600}{\sqrt{\frac{m\cdot g}{b} } }  \right)

\frac{v}{\sqrt{\frac{m\cdot g}{b} } }=\tan \left[-\frac{2\cdot b\cdot t}{m} + \tan^{-1}\left(\frac{600}{\sqrt{\frac{m\cdot g}{b} } }  \right)\right]

v = \sqrt{\frac{m\cdot g}{b} } \left [\frac{\tan \left(-\frac{2\cdot b \cdot t}{m}  \right)+ \left(\frac{600}{\sqrt{\frac{m\cdot g}{b} } }  \right)}{1 - \left(\frac{600}{\sqrt{\frac{m\cdot g}{b} } }  \right)\cdot \tan \left(-\frac{2\cdot b \cdot t}{m}  \right) }\right]

4 0
3 years ago
Is (1, 6) a solution to this system of equations?<br> 5x + 2y = 17<br> x + 3y = 19<br> yes<br> no
Ulleksa [173]
Answer:
Yes

Explanation:
5x + 2y = 17

We are given the values (1, 6)

Substitute then into the equation

(I put a question mark to basically ask the question “is 5(1) + 2(6) equal to 17?”)

5(1) + 2(6) = 17?
5 + 12 = 17?
Yes!

Hope this helped and made sense :)
5 0
3 years ago
Read 2 more answers
(a−2b)3 when a=−4 and b=−1/2
Vikentia [17]

Answer:

-9

Step-by-step explanation:

(-4-2*-1/2)3

(-4+1)3

-3*3

-9

3 0
2 years ago
Read 2 more answers
Please help for D, E and F
Phantasy [73]
D) 24/65 because it represents the number of players with 1-5 years of experience out of the overall total interviewed.

E) 3/11 because out of the eleven rookies, only three of them were under 200 lbs.

F) out of the 8 that reported to be under 200 pounds, only 3 were rookies, so the probability is 3/8
6 0
3 years ago
Is a parallelogram a square. <br><br> JUST SAY YES OR NO, SKIP THE EXPLANATION
allochka39001 [22]

Answer:

no

You said skip the explanation, so ok

6 0
3 years ago
Other questions:
  • In 1988, a certain model of car cost $17000. What would be the cost of that car in 2017 dollars?
    9·1 answer
  • What is tan 30°?<br> 60*<br> 2<br> /<br> 90*<br> 30*<br> с<br> оооооо
    12·1 answer
  • Three vertices of parallelogram ABCD are A(−2, −2), B(2, 1), and C(0, 7). What are the coordinates of vertex D?
    5·1 answer
  • ∠A is an acute angle in a right triangle.
    7·1 answer
  • The opposite of 4x and -5 + 4x
    8·1 answer
  • Zed went to the store and bought a bag of chips. He estimated there would 1 point
    8·1 answer
  • Pleaseeeeeee help mee....​
    12·1 answer
  • -9y + 4x - 20 = 0<br> -7y + 16 - 80
    11·2 answers
  • Select all of the ratios that are equivalent to 1:5
    10·2 answers
  • This hard anyone help?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!