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3 years ago

6

A carpenter bought a piece of wood that was 6.85 meters long. Then she sawed 0.57 meters off the end. How long is the piece of w

ood now? meters. help plz

1 answer:

andrey2020 [161]3 years ago

8 0

Answer:

6.28meters

it is the aswer if wrong please tell me

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A line passes through the point (0, –1) and has a slope of -2/3 What is the equation of the line?

Troyanec [42]

The slope formula:
$y=mx+b$
m - a slopeb - y-intercept
We have:
$m=-\dfrac{2}{3}$ and point $(0;-1)\to b=-1$
Substitute:
$y=-\dfrac{2}{3}x-1$
Answer: A.

6 0

3 years ago

Find approximate solution for the equation in the interval 0<_ x <_ pi. round to three decimal places. tanx=5 sin x

timofeeve [1]

Answer:

d. 0, 1.369

Step-by-step explanation:

Given:

The equation is: $\tan x =5\sin x................(0\leq x\leq \pi)$

Adding $-5\sin x$ on both sides, we get

$\tan x - 5\sin x=0$

Using the identity $\tan x=\frac{\sin x}{\cos x}$ , we get

$\frac{\sin x}{\cos x}-5\sin x=0$

Factoring out $\sin x$ , we get

$\sin x(\frac{1}{\cos x}-5)=0\\\\\therefore \sin x=0\ or\ \frac{1}{\cos x}-5=0\\\\x=\sin^{-1} (0)\ or\ \cos x=\frac{1}{5}\\\\x=0\ or\ x=\cos^{-1} (\frac{1}{5})\\\\x=0\ or\ x=1.3694\approx 1.369(\textrm{Round to 3 decimal places})$

Therefore, the solution of the given equation is either 0 or 1.369.

The correct choice is d.

4 0

3 years ago

2r+8>16-2r and 7r+21

jekas [21]

Answer:

First Equation answer: r > 2

Second Equation answer: 7 (r+3)

Step-by-step explanation:

First Equation Explanation: Move variable to the left side (2r + 2r + 8 > 16)

See the like terms (4r > 16-8)

Divide both sides by inequality of 4 (4r > 8) 4r----> r > 2

Second Equation Explanation: Factor out 7.

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4 years ago

The summer after sophomore year, Haley nannied for a family and earned $2000. She

AnnZ [28]

You want to calculate the interest on $2000 at5.8% interest per month after six years?

Here is your formula: I =p*r*t

P is the principal amount which is $2000

R is the rate of interest which is 5.8% per month

T is the time involved whihc is six years

You’re interest is 8352.00

3 0

3 years ago

Plese im stuck on this question and i need this to get my grade up

Volgvan

Answer:

the answer is x<-1

Step-by-step explanation:

-6x + 22 1/4 +2x> 9 3/4+ 16 1/2

-4x +89/4 >(9+26) + (3/4+1/2)

-4x + 89/4 > 25+ (3/4 + 1/2)

-4x + 89/4 >25 +1 1/4

-4x 89/4 > 25 + 1 + 1/4

-4x + 89/4 > 26+ 1/4

-4x + 89/4 > 26 1/4

-4x + 89/4 > 105/4

-4x > 105/ 4 -89/4

-4x> 4

x <-1

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2 years ago