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Karolina [17]
11 months ago
12

Pls help with math. :(

Mathematics
2 answers:
Karolina [17]11 months ago
8 0

Answer:

Tom will run 9 miles in 12 minutes.  

Step-by-step explanation:

             

VMariaS [17]11 months ago
5 0

Answer:

I would say 9 miles

Step-by-step explanation:

He would have to be HAULING it to run 6 miles in 8 minutes lol.

But, I think it's 9 miles

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Does anyone know the answer to this one?
polet [3.4K]

Answer:

\large\boxed{a(x+4)(x-5)=0,\ a\in\mathbb{R}-\{0\}}\\\\\text{for}\ a=1\to\boxed{x^2-x-20=0}

Step-by-step explanation:

\text{If}\ x_1\ \text{and}\ x_2\ \text{are the roots of the quadratic equation}\ ax^2+bx+c=0,\\\text{then}\ ax^2+bx+c=a(x-x_1)(x-x_2).\\\\\text{If}\ x_1\ \text{and}\ x_2\ \text{, then they are the roots of the quadratic equation.}\\\\\text{We have}\ x_1=-4\ \text{and}\ x_2=5.\ \text{Therefore we have the equation:}\\\\a(x-(-4))(x-5)=0\\\\a(x+4)(x-5)=0\qquad\text{for any value of}\ a\ \text{except 0}.

7 0
3 years ago
2(4K + 7)<br> Helppp lol
Hoochie [10]
8k+14

Hope this helps !!!
8 0
3 years ago
Read 2 more answers
Plz, HELP me with this question!
Tresset [83]
1/6 should be the right answer
7 0
3 years ago
100 POINTS!! OMG YOU NEED TO SOLVE THIS!
natita [175]

Answer:

The correct answer is: \Delta BDE \cong \Delta BFK by <em>rule</em> ASA rule of congruence.

Step-by-step explanation:

First let us prove \Delta BDE \cong \Delta BFK by rule ASA (rule of congruence).

<u>Congruent side:</u>

\overline{BD} \cong \overline{BF} (Given)

<u>Congruent angles:</u>

1. By definition of perpendicular,

\angle{BFK} = 90 \textdegree \ (Since \ \overline{FK} \ is \ perpendicular \ to \ \overline{AB} \ (\overline{FK} \perp \overline{AB} =Given))

Also,

\angle{BDE} = 90 \textdegree \ (Given)

Therefore,

\angle{BDE} \cong \angle{BFK}

or you can say,

\angle{D} \cong \angle{F}

2. Common angle between \Delta BDE \ and \ \Delta BFK is \angle{B}

In a nutshell, in \Delta BDE,

\angle{B} (Angle)

\overline{BD} (Side)

\angle{BDE} (Angle)

are congruent to the following angle, side and angle of \Delta BFK:

\angle{B} (Angle)

\overline{BF} (Side)

\angle{BFK} (Angle)

Therefore, by ASA rule of congruence, we can say \Delta BDE \cong \Delta BFK.

<em>Since both triangles are congruent</em>, the sides \overline{ED} and \overline{FK} are also congruent.

5 0
3 years ago
Read 2 more answers
Need help with algerbra
TiliK225 [7]
Y^2+5y  the greatest common factor is y so

y(y+5)

...

4x^2-49  this is a "difference of perfect squares" which always factors to:

(a^2-b^2)=(a-b)(a+b), in this case:

(2x-7)(2x+7)

...

5s^2-20  GCF is 5

5(s^2-4)  now the parenthetic term is a difference of squares so

5(s-2)(s+2)
8 0
3 years ago
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