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3 years ago

Help me with this, please!!!!

Mathematics

1 answer:

NeX [460]3 years ago

5 0

Answer:

Answer is : 0

NO solution

Step-by-step explanation:

System of Linear Equations entered :

[1] y + 3x = 7

[2] y + 3x = -6

Solve by Substitution :

// Solve equation [2] for the variable y

[2] y = -3x - 6

// Plug this in for variable y in equation [1]

[1] (-3x-6) + 3x = 7

[1] 0 = 13 => NO solution

No solution

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(84x - 69y) - (65x + 34y)

Svetach [21]

(84x - 69y) - (65x + 34y)

Remove the parenthesis and combine the like terms:

84x - 65x = 19x

-69y - 34y = -103y

Combine for final answer:

19x -103y

6 0

4 years ago

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Gala2k [10]

Answer:

8 feet below sea level

Step-by-step explanation:

because ur already below sea level

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3 years ago

Read 2 more answers

What is the final amount when investing $1400 compounded continuously at 7.5% for 12 years?

strojnjashka [21]

Answer:$3334.5

Step-by-step explanation:

A=p(1+r/100)^n

A=1400(1+7.5/100)^12

A=1400(1.075)^12

A=1400×2.381

A=$3334.5

8 0

4 years ago

What is the height of an equilateral triangle if the sides are 10

4vir4ik [10]

Answer:

The height of the equilateral triangle is $5\sqrt{3}\ units$

Step-by-step explanation:

we know that

An equilateral triangle has three congruent sides, and three congruent angles that each measure 60 degrees

To find out the height of an equilateral triangle, apply the Pythagoras Theorem in the right triangle ABD

Remember that the height of an equilateral triangle bisects the base.

see the attached figure to better understand the problem

$AB^2=AD^2+BD^2$

substitute the given values

$10^2=5^2+BD^2$

Solve for BD

$100=25+BD^2$

$BD^2=100-25$

$BD^2=75$

$BD=\sqrt{75}\ units$

simplify

$BD=5\sqrt{3}\ units$ `

therefore

The height of the equilateral triangle is $5\sqrt{3}\ units$

7 0

4 years ago

Hello! I need help with 2 questions, PLEASE ANSWER THEM BOTH OR DO NOT ANSWER LET OTHERS DO IT.

levacccp [35]

V=hpir^2

I will assume that the first one is the one with radius 16 and height 40
2nd is radius 7 and height 26

1. v=hpir^2
v=40pi16^2
v=40pi256
v=10240pi cubic inches
3rd option

2.
v=hpir^2
v=26(3.14)7^2
v=26(3.14)(49)
v=1274(3.14)
v=4000.36 cubic cm
1st option

8 0

3 years ago