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3 years ago

X^2+10x-2=0 use picture as example

Mathematics

1 answer:

user100 [1]3 years ago

6 0

See answer below x=-5+3 radical 3 and x=-5-3 radical 3

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Kate has one dime for Nichols and eight pennies make us total amount as a fraction in terms of a dollar

umka2103 [35]

18/100 or 9/50 when simplified i BELIEVE

8 0

3 years ago

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If B is the midpoint of AC, and AC=8x-20. Find BC<br> AB=3x-1<br> Show all work

exis [7]

First we know that:
AB+BC=AC
now , since B is the midpoint of AC, this means that AB=BC
therefore,
AB+BC=AC can also be written as
AB+AB=AC
3x-1+3x-1=8x-20
6x-2=8x-20
-2+20=8x-6x
18=2x
x=9

therefore:
AB=3(9)-1=27-1=26
AC=8(9)-20=52
BC=AB=26

6 0

4 years ago

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Which statement can john use this figure to prove

Brums [2.3K]

Answer:

The correct option is;

The points on the perpendicular bisector of a side of a triangle are equidistant from the vertices of the side it bisects

Step-by-step explanation:

With the assumption that that the question meant that ΔACD and ΔBCD are congruent, we have;

Segment $\overline {AC}$ is congruent to segment $\overline {BC}$ by Congruent Parts of Congruent Triangles are Congruent, CPCTC

Similarly, segment $\overline {DA}$ is congruent to segment $\overline {DB}$ by Congruent Parts of Congruent Triangles are Congruent, CPCTC

Therefore, the points on the perpendicular bisector of a side of a triangle are equidistant from the vertices of the side it bisects

3 0

3 years ago

An airplane descends 2.2 miles to an elevation of 8.55 miles. Find the elevation of the plane before its descent.

lutik1710 [3]

Answer:

10.75 miles was the elavation before it's decsecent.

Step-by-step explanation:

Hope this helps! :)

7 0

4 years ago

Simplify this expression: (7x + 3) – (4x – 5)

wolverine [178]

Answer:

Step-by-step explanation:

3x+8

6 0

3 years ago

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