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laiz [17]
3 years ago
9

Really need help!!! quadratic equations UGH

Mathematics
2 answers:
Mumz [18]3 years ago
5 0
2m³ + 10 m = 48

2m² + 10m - 48 = 0, solve this quadratic for m. Apply the formula:

m'=[-b + √(b²+4ac)]/2a and m" ==[-b - √(b²+4ac)]/2a

WHERE  a = 2, b=10, c= - 48
and you will find :
m=  3 and m= - 8 (answer a)
kati45 [8]3 years ago
4 0
2m^2 + 10m = 48\\
2m^2+10m-48=0\\
m^2+5m-24=0\\
m^2-3m+8m-24=0\\
m(m-3)+8(m-3)=0\\(m+8)(m-3)=0\\
m=-8 \vee m=3
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Need some answers for this one
Schach [20]

Answer:

20.6

Step-by-step explanation:

Since the diameter of each circle is 4, the dimensions of the rectangle is 8x12

The area of the whole rectangle is 96

Now we need to find the area of the circles

The area of 1 circle is 2^{2} *\pi =12.56...

So the area of all 6 circles is 12.56*6= 75.39...

So to find the area of yellow you have to subract the area of circle from the overall area of the rectangle

96-75.4=20.6

4 0
3 years ago
Help me with this question
shutvik [7]

D. 1/6

0.16=1/6

So answers is D

6 0
3 years ago
Read 2 more answers
How do I solve this question?
Tanya [424]
Before attempting to solve this question, we must first know three things.

1. A straight line has a measure of 180 degrees.

2. When two angles add up to 180 degrees, those angles are called supplementary.

3. The interior angles of a triangle add up to 180 degrees.

We can see ∠ECT = 180 degrees.

∠DCT is supplementary to ∠DCE.

∠DCT = 140 degreees
∠DCE = x degrees

x + 140 = 180

Solve for x.

x + 140 = 180
x = 40 <-- Subtract 140 from each side

∠DCE = 40 degrees

We know the two interior angles of ΔDEC.

45 + 40 + x = 180

Solve for x.

45 + 40 + x = 180
85 + x = 180 <-- Combine like terms
x = 95

So, the missing angle is equal to 95 degrees.
6 0
3 years ago
(-5)+(-4)=<br> (-3)+(+1)=<br> (-2)+(-7)=
Alex73 [517]

Answer:

(-5)+(-4)= -9

(-3)+(+1)= -2

(-2)+(-7)= -9

Step-by-step explanation:

4 0
3 years ago
A plane left Chicago at 8:00 am. At 1:pm, the plane landed in Los Angeles, which is 1500 miles away. What was the average speed
Degger [83]

Answer:

it took the plane 5 hours to get there and now that you know the time it took for the plane to get there divide it by the miles which equals 300 miles per hour

5 0
2 years ago
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