Ask question

Ask question

All categories

3 years ago

8

I need the answer for number 8 13 points

2 answers:

sammy [17]3 years ago

5 0

I would say B but double check that

Leno4ka [110]3 years ago

3 0

I hope this helps you

9x-2=12

9x=14

x=14/9

x= 1,555555

1 <1,5555 <2

B

You might be interested in

» f(x) = (x+2)^2 -<br>1

faltersainse [42]

Answer:

x= 1 thì f(x) = -11ep-by-step explanationábdkjakdkasd :

6 0

2 years ago

Please Help here, i really need this joe

NNADVOKAT [17]

Answer:

The first answer choice, 4632.5

Step-by-step explanation:

At the rate of 85 feet per hour, after 5.5 hours the apprentice would have covered 467.5 square feet. Subtracting this from the total amount of 5,100 square feet, you get 4632.5, or the first answer choice. Hope this helps!

5 0

2 years ago

Read 2 more answers

Х- а<br>x-b<br>If f(x) = b.x-a÷b-a + a.x-b÷a - b<br>Prove that: f (a) + f(b) = f (a + b)

GenaCL600 [577]

Given:

Consider the given function:

$f(x)=\dfrac{b\cdot(x-a)}{b-a}+\dfrac{a\cdot(x-b)}{a-b}$

To prove:

$f(a)+f(b)=f(a+b)$

Solution:

We have,

$f(x)=\dfrac{b\cdot(x-a)}{b-a}+\dfrac{a\cdot (x-b)}{a-b}$

Substituting $x=a$ , we get

$f(a)=\dfrac{b\cdot(a-a)}{b-a}+\dfrac{a\cdot (a-b)}{a-b}$

$f(a)=\dfrac{b\cdot 0}{b-a}+\dfrac{a}{1}$

$f(a)=0+a$

$f(a)=a$

Substituting $x=b$ , we get

$f(b)=\dfrac{b\cdot(b-a)}{b-a}+\dfrac{a\cdot (b-b)}{a-b}$

$f(b)=\dfrac{b}{1}+\dfrac{a\cdot 0}{a-b}$

$f(b)=b+0$

$f(b)=b$

Substituting $x=a+b$ , we get

$f(a+b)=\dfrac{b\cdot(a+b-a)}{b-a}+\dfrac{a\cdot (a+b-b)}{a-b}$

$f(a+b)=\dfrac{b\cdot (b)}{b-a}+\dfrac{a\cdot (a)}{-(b-a)}$

$f(a+b)=\dfrac{b^2}{b-a}-\dfrac{a^2}{b-a}$

$f(a+b)=\dfrac{b^2-a^2}{b-a}$

Using the algebraic formula, we get

$f(a+b)=\dfrac{(b-a)(b+a)}{b-a}$ $[\because b^2-a^2=(b-a)(b+a)]$

$f(a+b)=b+a$

$f(a+b)=a+b$ [Commutative property of addition]

Now,

$LHS=f(a)+f(b)$

$LHS=a+b$

$LHS=f(a+b)$

$LHS=RHS$

Hence proved.

5 0

2 years ago

Which could be the area of the base of the triangular prism? [Not drawn to scale]6 ft210 ft212 ft220 ft2

Alexus [3.1K]

For this case, the first thing we must observe is that the base of the prism is a triangle.
The area of the triangle is given by:
$A = (1/2) * (b) * (h)
$
Where,
b: base of the triangle
h: height of the triangle
Substituting values we have:
$A = (1/2) * (4) * (3)

A = 6 ft ^ 2$
Answer:
The area of the base of the triangular prism could be:
$A = 6 ft ^ 2$

6 0

3 years ago

Read 2 more answers

What is the I will mark you branilst

kolezko [41]

Answer: C the first one

Step-by-step explanation:

8 0

3 years ago