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3 years ago

What reason justifies the statement if B is between A and C then AB + BC = AC

Mathematics

1 answer:

Minchanka [31]3 years ago

6 0

Answer:

noway 09

Step-by-step explanation:

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Factorise fully 9x^2 - 16y^2

dsp73

Note: a² - b² = (a-b)(a+b)

9x² - 16y² = (3x)² - (4y)² = (3x - 4y)(3x + 4y)

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4 years ago

Math help please? Giving brainliest and 25 points!!!!!!

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Given:
for x=-4 and x=4, find value of f(x) if f(x) is piecewise defined as follows:
f(x)=x² if x≤-4, and ..........(1)
f(x)=sqrt(x) if x>1...............................(2)

f(-4)=x ² =(-4)^2= +4*4=+16 [ from (1) ]
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3 years ago

Find the product.<br> (5x^2−4x+6)(−2x+3)=

d1i1m1o1n [39]

− 1 0 3 + 2 3 2 − 2 4 + 1 8

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3 years ago

Which function below is the inverse of f(x)= 3x+5/7

Ipatiy [6.2K]

Inverse
replace f(x) wih y
solve for x
replace x with f⁻¹(x) and y with x

so

f(x)=3x+5/7
replace
y=3x+5/7
solve for x
minnus 5/7 both sides
y-5/7=3x
divide both sides by 3
$\frac{y- \frac{5}{7} }{3}$ =x
replace with f⁻¹(x)

f⁻¹(x)= $\frac{y- \frac{5}{7} }{3}$

5 0

4 years ago

Read 2 more answers

What does ‘x’ equal

Dmitriy789 [7]

Answer:

x=(-9)

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

(−2/3)(9+x)=0

(−2/3)(9)+(−2/3)(x)=0(Distribute)

−6+−2/3x=0

−2/3x−6=0

Step 2: Add 6 to both sides.

−2/3x−6+6=0+6

−2/3x=6

Step 3: Multiply both sides by 3/(-2).

(3−2)*(−2/3x)=(3−2)*(6)

x=−9

6 0

3 years ago