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alex41 [277]
2 years ago
10

Please help me will give brainly

Mathematics
1 answer:
Pachacha [2.7K]2 years ago
5 0

Step-by-step explanation:

question 6

-5x+6y=12

6y=12+5x

6y=5x+12

y=⅚x +12/6

y=⅚x +2

question 7

slope m =-5

intercept c =7

y=mx+c

y=-5x+7

question 8

(a) y=mx-45x

y=x(m-45)

(b) y=120(m-45)

question 10

(8 -2)

x1=8

y1=-2

m=3

m=(y-y1)/(x-x1)

3=(y+2)/(x-8)

3(x-8)=y+2

3x-24=y+2

3x-y-24-2=0

3x-y-26=0

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You start driving north for 24 miles, turn right, and drive east for another 10 miles. At the end of driving, what is your strai
yawa3891 [41]

Answer:

26 miles

Step-by-step explanation:

Given: 24 miles drive to north.

          10 miles drive to east.

Driving pattern form a right angle triangle, which has three leg including straight line distance from starting point (hypotenous).

Now, using Pythogorean theoram to find straight line distance from starting point.

h²= a²+b²

Where, h is hypotenous

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⇒h²= 24^{2} + 10^{2}

⇒h^{2} = 576+100

⇒h^{2} = 676

Taking square root on both side, remember; √a²= ±a

⇒h=\sqrt{676}

∴ h= \pm 26

Ignoring -26 as distance cannot be negative.

Hence, 26 miles is the straight line distance from starting point.

8 0
3 years ago
Pretty please help! there are 4 graphs.
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Hope this helps & Good Luck,

Melodii

8 0
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Which table represents a linear function?
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Step-by-step explanation:

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Solve this system using matrices:
sweet [91]

Answer:

Step-by-step explanation:

A system of linear equations is one which may be written in the form

a11x1 + a12x2 + · · · + a1nxn = b1 (1)

a21x1 + a22x2 + · · · + a2nxn = b2 (2)

.

am1x1 + am2x2 + · · · + amnxn = bm (m)

Here, all of the coefficients aij and all of the right hand sides bi are assumed to be known constants. All of the

xi

’s are assumed to be unknowns, that we are to solve for. Note that every left hand side is a sum of terms of

the form constant × x

Solving Linear Systems of Equations

We now introduce, by way of several examples, the systematic procedure for solving systems of linear

equations.

Here is a system of three equations in three unknowns.

x1+ x2 + x3 = 4 (1)

x1+ 2x2 + 3x3 = 9 (2)

2x1+ 3x2 + x3 = 7 (3)

We can reduce the system down to two equations in two unknowns by using the first equation to solve for x1

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1

and substituting this solution into the remaining two equations

(2) (4 − x2 − x3) + 2x2+3x3 = 9 =⇒ x2+2x3 = 5

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3 years ago
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