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3 years ago

I need help bad it kinda makes no sense

Mathematics

1 answer:

Advocard [28]3 years ago

5 0

Answer:

Step-by-step explanation:

times the 4x4 and the 6x8 then add them together.

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What is 3n + 1 when n =4

chubhunter [2.5K]

Answer:

Step-by-step explanation:

3n+1

Let n= 4

3(4)+1

12+1

8 0

2 years ago

Read 2 more answers

5+14 a equal nine a -5

frosja888 [35]

Answer:

a = -2

Step-by-step explanation:

5 + 14a = 9a - 5

Subtract 9a from both sides of the equation

5 + 5a = -5

Subtract 5a from both sides of the equation

5 = -5 - 5a

Add 5 to both sides of the equation

10 = -5a

Divide both sides of the equation by -5

a = -2

Hope this was useful to you!

3 0

3 years ago

What are the solutions of the equation x4−10x2+9=0? Use u substitution.

PSYCHO15rus [73]

Answer:

Step-by-step explanation:

X^4 - 10X^2 + 9 =0 This factors. It just looks odd.

(x^2 - 1)(x^2 - 9) = 0

x^2 - 1 = (x + 1)(x - 1) = 0

x = 1 and x = - 1

x^2 - 9 = (x + 3)(x - 3) = 0

x = 3

x = -3

The correct answer is C (third one down).

7 0

3 years ago

NEED HELP ASAP 30 POINTS WILL BE GIVEN TO BRAINLIEST

WINSTONCH [101]

we know that

The formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

we have

$G(-1,3)\ H(1,2)\ J(-3,-1)$

Step 1

Find the slope GH

$G(-1,3)\ H(1,2)$

substitute in the formula

$m=\frac{2-3}{1+1}$

$m=\frac{-1}{2}$

$mGH=-\frac{1}{2}$

Step 2

Find the slope HJ

$H(1,2)\ J(-3,-1)$

substitute in the formula

$m=\frac{-1-2}{-3-1}$

$m=\frac{-3}{-4}$

$mHJ=\frac{3}{4}$

Step 3

Find the slope JG

$J(-3,-1)\ G(-1,3)$

substitute in the formula

$m=\frac{3+1}{-1+3}$

$m=\frac{4}{2}$

$mJG=2$

Step 4

Verify if triangle GHJ is a right triangle

we know that

if two lines are perpendicular, then the product of their slopes is equal to minus one

$m1*m2=-1$

compare slope GH with slope JG

we have

$mGH=-\frac{1}{2}$

$mJG=2$

$-\frac{1}{2}*2=-1$ -----> side GH and side JG are perpendicular

The triangle GHJ is a right triangle

The answer in the attached figure

4 0

3 years ago

The function below crosses the x-axis once. y=3x^2-8x+8

Mekhanik [1.2K]

I believe it is false because it only passes through the y-axis not the x-axis.

6 0

3 years ago