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3 years ago

If y = -4 when x = 10, find y when x = 2

Mathematics

1 answer:

Goshia [24]3 years ago

4 0

Answer:

y=-8/10 when x=2

Step-by-step explanation:

make a proportion

-4/10=y/2

cross multiply and simplify to solve the proportion

-8=10y

y=-8/10

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I fixed it this time.....and its the second page

dybincka [34]

That’s good for u I don’t care

7 0

3 years ago

(0.0196N) x (0.016m) =

Anettt [7]

Answer: $0.0003136\ J$ or $3.136*10^{-4}J$

Step-by-step explanation:

By definiition, when you multiply 1 Newton (N) by 1 meter (m), the unit obtained is an unit called "Joule", whose symbol is J.

Joule (J) is an unit of energy, work or heat.

Then to solve the exercise, you must multiply 0.0196 N by 0.016 m. Therefore, you obtain that the product is:

$(0.0196N)(0.016m)=0.0003136J$ or $3.136*10^{-4}J$

8 0

4 years ago

Read 2 more answers

The water content of a soil volume is measured four times gravimetrically by oven drying. The mean value of the water content is

expeople1 [14]

Answer:

99% confidence interval for the soil water content is determined by

(0.19474, 0.26926)

Step-by-step explanation:

Explanation:-

Given mean of the sample = 23.2% = 0.232

Given standard deviation of the sample = 1.0% =0.01

Given sample size 'n' =4

Degrees of freedom = n-1 =4-1 =3

critical value = 0.01

$t_{\frac{0.01}{2} } = t_{0.005} =7.4534$

99% confidence interval for the soil water content is determined by

$((x^{-} - t_{0.005} \frac{S.D}{\sqrt{n} } , (x^{-} + t_{0.005} \frac{S.D}{\sqrt{n} })$

$((0.232 - 7.4534\frac{0.01}{\sqrt{4} } , (0.232 + 7.4534 \frac{0.01}{\sqrt{4} })$

( 0.232 -0.03726 , 0.232 +0.03726)

(0.19474, 0.26926)

Final answer:-

99% confidence interval for the soil water content is determined by

(0.19474, 0.26926)

3 0

3 years ago

Steve made a sign for his room that is shaped like a triangle. It is 4.5 feet long and 3 feet high. He wants to make another sig

Alex_Xolod [135]

Answer:

I am not american, so I don't know if this is correct or now. You times 10*15 to get the surface area of one wall. Then you times that by 4 to get four walls. I think the answer is 600 ft

Step-by-step explanation:

hope it helps

7 0

3 years ago

Read 2 more answers

The difference between the roots of the quadratic equation x2−8x+p=0 is 6. Find p.

Eduardwww [97]

Answer:

p=7

Step-by-step explanation:

x1+x2=8

2x+6=8

2x=2

x=1

c/a=c

x1*x2=c=p

x1*x2=7

p=7

7 0

4 years ago