3 years ago

23.

Mathematics

1 answer:

vlabodo [156]3 years ago

6 0

Tacos hybrid hope this helps

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Solve using the quadratic formula x2 - 6x - 40=0 Question options: x = 10 or x = -4 x = 4 or x = -10 x = -7 or x = 7 x = -4 - √7

Crazy boy [7]

Answer:

$x=-10$ or $x=4$

Step-by-step explanation:

$ax^2+bx+c=0$

$x^2-6x-40=0$

$x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$

$x=\frac{-6\pm\sqrt{6^2-4(1)(-40)}}{2(1)}$

$x=\frac{-6\pm\sqrt{36+160}}{2}$

$x=\frac{-6\pm\sqrt{196}}{2}$

$x=\frac{-6\pm14}{2}$

$x=-3\pm7$

$x=-10$ or $x=4$

6 0

3 years ago

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What does x equal in 5-4(-x-3/2)5(-6-6/5)+10x

Mrrafil [7]

Answer:

-134x -211

Step-by-step explanation:

https://www.mathpapa.com/equation-solver/ if you have any more problums

6 0

3 years ago

Find the distance between the two points shown. <br> A) 5 <br> B) 7 <br> C) 21 <br> D) 27

kotegsom [21]

Answer:

It is B, 7 points.

Step-by-step explanation:

You can start from the point (8,2) and then you go up 7 points to reach the point (8,9) which is 7 points.

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4 years ago

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Fill in the blank distributive property

Sav [38]

$4(20+1)=4(20)+4(1)=80+4=84$

It's still just easier to add first though.

3 0

3 years ago

In one day Anne traveled five times the sum of the number of hours Brian traveled and two. together they travel 20 hours find th

den301095 [7]

Let the number of hours Brian travelled = X
Then the number of hours Anne traveled = 5X + 2
Since they together travelled 20 hours, then
X + ( 5X + 2) = 20
X + 5X + 2 = 20
6X + 2 = 20
6X = 20 - 2
6X = 18
X = 18/6
   = 3 hours.
So brian travels for a period of 3 hours.
Now the number of hours Anne travelled = 5X +2
   = (5 * 3) + 2
   = 15 + 2
   = 17 hours.

3 0

3 years ago