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dem82 [27]
4 years ago
12

Use the quadratic formula to determine the exact solutions to the equation. 6x2+4x−3=0 Enter your answers in the boxes. x = or x

=
need answer NOW will give brainlest
Mathematics
2 answers:
Black_prince [1.1K]4 years ago
8 0
The quadratic formula is x= -b +/- √b²-4ac / 2a

In this problem,

a=6
b=4
c=-3

Now, we can plug this into the formula:

x= -4 +/- √4²-(4)(6)(-3) / (2)(6)
x= -4 +/- √16+72 / 12
x= -4 +/- √88 /12
x= -4 +/- 2√22 /12
x= -2 +/- √22 / 6

So,

x= -2 + √22 / 6
x= -2 - √22 / 6
emmainna [20.7K]4 years ago
8 0
I just took the test, the answers are
1: -2+SR 22/6
2: -2-SR 22/6
sr= square root
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Melissa's homeroom raised 63% of its goal for the school fundraiser. Matt's homeroom has raised 48%. Create a situation in which
Contact [7]

Melissa's homeroom raised 63% of its goal for the school fundraiser. Matt's homeroom has raised 48%. Since it is a percentage of their goal, a situation in which Matts homeroom raised more money that Melissa's homeroom is when Matts goal is much bigger than melissas goal, so even if melissas has bigger percentage, matt has more money.

Example

Matts goal is 1000 so 1000*.48 = 480

Melissas goal is 500 so 500*.63 = 315

8 0
3 years ago
What is the total area of the shaded triangles?
frozen [14]
Check the picture below.

\bf \textit{area of an equilateral triangle}\\\\
A=\cfrac{s^2\sqrt{3}}{4}~~
\begin{cases}
s=length~of\\
\qquad a~side\\
------\\
s=\frac{s}{3}
\end{cases}\implies A=\cfrac{\left( \frac{s}{3} \right)^2\sqrt{3}}{4}
\\\\\\
A=\cfrac{\frac{s^2\sqrt{3}}{3^2}}{4}\implies A=\cfrac{s^2\sqrt{3}}{4\cdot 3^2}\implies A=\cfrac{s^2\sqrt{3}}{36}
\\\\\\
\textit{and since there are 3 triangles shaded with that area}
\\\\\\
\textit{shaded area}\implies 3\left( \cfrac{s^2\sqrt{3}}{36} \right)\implies \cfrac{s^2\sqrt{3}}{12}

6 0
4 years ago
Question 1 of 10
Zanzabum

Answer:

A: 40 degrees

Step-by-step explanation:

Since every triangle is 180 degrees, you can start off by subtracting 50 from 180 since that side does not contain a y for you to solve.

Since the other two sides do have a y in them, you would set 130 degrees equal to y+10 and 2y:

130=y+10+2y

Then you would isolate the y's by subtracting 10, and you would add y and 2y together to get:

120=3y

Finally, you would divide 120 by 3 to get your answer, 40=y.

Hope this helps!

8 0
4 years ago
River runs 8 miles in 56 minutes. How many miles does he run in 84 minutes?
Alchen [17]

Answer:

7.5minutesmile×6 miles=45 minutes

7 0
3 years ago
Read 2 more answers
Pls help thank you!!!!
Sedaia [141]
I believe it’s b I’m not quite sure it’s been a while
6 0
3 years ago
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