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seropon [69]
3 years ago
6

Inga is solving 2x2 + 12x – 3 = 0. Which steps could she use to solve the quadratic equation? Check all that apply.

Mathematics
2 answers:
Oliga [24]3 years ago
6 0

Step 1,3 and 4 are the correct answers!!!

Kitty [74]3 years ago
5 0

the first, third, and fourth options are correct, i just took the edginuity test.

Answers

  • <u>2(x2 + 6x + 9) = 3 + 18 </u>
  • 2(x2 + 6x) = –3
  • <u>2(x2 + 6x) = 3 </u>
  • <u>x + 3 =  </u>
  • 2(x2 + 6x + 9) = –3 + 9
  • (x + 3)2 =
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Mr. Nielsen invested $250,000 in two different automobile companies. The first earned a 5% profit, and the second earned a 10% p
dem82 [27]

Answer: $100,000


Step-by-step explanation:

Let P be the amount he invested in 5% profit .

then 250,000-P be the amount he invested in 10% profit .

The total profit he earns at 5% =5% of P

⇒The total profit he earns at 5 %=0.05P

Now, The total profit he earns at 10% =10% of (250,000-P)

⇒The total profit he earns at 10%=0.1(250,000-P)=25,000-0.1P

According to the question,

3(0.05P)=25,000-0.1P\\\Rightarrow\ 0.15P=25,000-0.1P\\\Rightarrow\ 0.25P=25,000\\\Rightarrow\ P=\frac{25000}{0.25}\\\Rightarrow\ P=100,000

Thus, the money he invest in the company that made 5%= $100,000

4 0
4 years ago
What is the amplitude, period, and phase shift of f(x)=-4 sin (2x+3.14)-5
finlep [7]
Remember this: for a trig function of <span>y = A sin(Bx + C) + D

</span><span><span>amplitude is A
</span><span>period is <span>2π/B
</span></span><span>phase shift is −C/B
</span><span>vertical shift is <span>D

So the amplitude is -4, the period is </span></span></span>π and the phase shift is -3.14/2 = 1.57.
8 0
3 years ago
if line ab is parallel to line CD,and line CD is perpendicular to line EF.what can you conlude about AB andEF
eimsori [14]
If line AB is parallel to line CD, and line CD is perpendicular to line EF, AB is perpendicular to line EF due to the perpendicular transversal theorem<span>,which says, if a line is perpendicular to another line, then it is perpendicular to the line parallel to the second line.

This theorem can be proved through the transversal postulate and theorems.</span>
6 0
4 years ago
IF YOU SEE THIS PLEASEE HELP MEEE I NEEED HELP I WANT TO FINISH THIS PLEASE
tester [92]
Answer is: Bella saves more per chore than Sweet T.

Bella began with 11 dollars and Sweet began with 10 dollars. Bella also earns 1.5 dollars more compared to Sweet T. This means that overall, Bella earns more and has more money compared to Sweet T.
8 0
3 years ago
Find the area of this triangle. Round to<br> the nearest tenth.l
trasher [3.6K]

Answer:

\boxed{109.3yd^2}

Step-by-step explanation:

<em>Hey there!</em>

Well to find area we'll use the following formula.

\frac{b h_{b} }{2}

Plug in the given info,

\frac{9.5*23}{2}

Simplify

218.5/2

109.25 or 109.3 rounded to the nearest tenth

= 109.3yd²

<em>Hope this helps :)</em>

5 0
3 years ago
Read 2 more answers
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