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sweet-ann [11.9K]
4 years ago
7

F(x) = 3x - 8; f(1) A. 8 B. -5 C. -8 D. 10

Mathematics
1 answer:
alexgriva [62]4 years ago
6 0
3(1) - 8 = 3 - 8 = -5
just plug in 1 for x that's what f(1) means
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-5=(-6)+x/4 Help please and Ty with work :)
Marysya12 [62]

Answer:

-5=(-6)+x/4

-5+6=x/4

(4)1=x/4(4)

4=x

7 0
3 years ago
The meat department of a local supermarket packages ground beef using meat trays of two sizes: 1 designed to hold 1 lb of meet a
r-ruslan [8.4K]

Answer:

c) 0.932

99% confidence interval for average weights of all packages sold in small meat trays.

(0.932 ,1.071)

Step-by-step explanation:

Explanation:-

Given random sample of 35 packages in small meat trays produced weight with an average of 1.01 lbs. and standard deviation  of 0.18 lbs.

size of the sample 'n' = 35

mean of the sample x⁻= 1.01lbs

standard deviation of the sample 'S' = 0.18lbs

<u>The 99% confidence intervals are given by</u>

(x^{-} - t_{\alpha } \frac{S}{\sqrt{n} } , x^{-} +t_{\alpha } \frac{S}{\sqrt{n} } )

The degrees of freedom γ=n-1 =35-1=34

tₐ =  2.0322

99% confidence interval for average weights of all packages sold in small meat trays

(1.01 - 2.0322 \frac{0.18}{\sqrt{35} } , 1.01+2.0322 \frac{0.18}{\sqrt{35} } )

( 1.01 - 0.06183 , 1.01+0.06183)

(0.932 ,1.071)

<u>Final answer</u>:-

<u>99% confidence interval for average weights of all packages sold in small meat trays.</u>

<u>(0.932 ,1.071)</u>

5 0
3 years ago
HELPPPPPPPP 7TH GRADE
egoroff_w [7]

Answer: 1 gallon

Step-by-step explanation:

Hi there!

Using the equation (12*18)-(7*3), where 12*18 is the area of the wall, 7*3 is the area of the door not being painted, you are left with 196 square ft. of wall. further dividing 196/200 is 0.98, meaning that Mr. Smith will only need one gallon of paint for his wall.

[(12*18)-(7*3)]/200

(215-21)/200

196/200

0.98

6 0
3 years ago
Read 2 more answers
Find the constant of variation if x and y vary directly and x = 6 when y= -2/3 ?
elena-14-01-66 [18.8K]

Answer:

a.

k= 5/22

Step-by-step explanation:


3 0
3 years ago
What is the volume of the base of a pyramid is 18 square yards. The height of the pyramid is 5 feet tall if its base is a square
satela [25.4K]
Use the equation for volume of a pyramid (base x width x height)
8 0
3 years ago
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