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2 years ago

-8 X-3x = -6 + 5 x How to solve

Mathematics

1 answer:

Gnom [1K]2 years ago

3 0

Answer:

x = 7

Step-by-step explanation:

3x-5=x+9 (Adding 5 and -x to both signs of = Sign)

2x = 14

x = 7

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The number of board feet in a 16 foot long tree is approximated by the model F(d) = 0.77d^2 -- 1.32d -- 9.31 where F is the numb

Lubov Fominskaja [6]

we are given

$F(d)=0.77d^2-1.32d-9.31$

where

F is the number of board feet

d is the diameter (in inches) of the log

Since, we have to minimize F

so, firstly we will find it's derivative

$F'(d)=0.77\times 2d-1.32\times 1-0$

$F'(d)=1.54d-1.32$

now, we can set it to 0

and then we can solve for d

$F'(d)=1.54d-1.32=0$

$1.54d-1.32=0$

so, we get diameter as

$d=\frac{6}{7}inch$ ..............Answer

6 0

3 years ago

Which of the following represents a first step in solving the equation (x-6)^2=9?

qwelly [4]

First step is square root both sides leaving with
x-6=+/-3

closest one is A

answer is A

3 0

3 years ago

Help please!! A. 0.6 B. 0.4 C. 0.2 D. 0.8

Masteriza [31]

Answer:

It's B. 0.4

Step-by-step explanation:

the first probability is 0.6 and 0.6+x=1 so x is 0.4

6 0

3 years ago

What is the slope of the function? -10 -5 5 10

bixtya [17]

Answer:

m= 1/2

Step-by-step explanation:

3 0

3 years ago

Sole for y k = p/2(y+w) y =

mojhsa [17]

Answer:

Answer: y = (2k -pw)/p

Step-by-step explanation:

$k = \frac{p}{2} (y + w)$

multiply 2 on both sides:

$k \times 2 = 2 \times \frac{p}{2} (y + w) \\ \\ 2k = p(y + w)$

open the bracket:

$2k = py + pw$

subtract pw from both sides:

$2k - pw = (py + pw) - pw \\ 2k - pw = py$

divide p on both sides:

$\frac{2k - pw}{p} = \frac{py}{p} \\ \\ y = \frac{2k - pw}{p}$

4 0

3 years ago

Read 2 more answers