MATHEMATICS HIGH SCHOOL

9.8 < 20 – 9.8t < 20

Answers

Answer 1
Answer:

Answer:

0 < t < 1.04 or  t ∈ (0, 1.04)

Step-by-step explanation:

Solving in steps:

  • 9.8 < 20 – 9.8t < 20                  
  • 9.8 - 20 < -9.8t < 20 - 20         ⇒ subtract 20 from all sides
  • -10.2 < -9.8t < 0                        ⇒ divide all sides by -9.8, this changes  inequality signs to reverse
  • 0< t < 10.2/9.8
  • 0 < t < 1.04 or t ∈ (0, 1.04)

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The Joneses are moving from San Francisco to South Africa. They pack their belongings in rectangular crates and hire a boxcar to ship the crates across land and sea. The crates are made specifically to fit inside the boxcar with their bases facing down. Each crate has a base 15 ft long by 5 ft wide and height 6.5 ft. The boxcar is 60 ft long, 10 ft wide and 13 ft high. How many crates can The Joneses fit into one boxcar?

Answers

La sup della base del box e' :
S box=60 x10=600
S crate =15 x5=75
Sulla base del box si possono mettere 600/75=8 crate
Sull' altezza (high) si possono mettere 13/6,5=2 strati
8( crate/ strato) x 2 (strati)=16 crates

Answer:

16 crates if i am right

Need help ASAP!!! Will mark brainliest

Answers

A=148°

B=148°

Step-by-step explanation:

180-38=148°

because A and B are equal, they're both 148°

PLEASE HELP! 80 POINTS AND BRAINLIEST TO FIRST ANSWER! A rectangular pen is constructed with 300m of fencing against a barn wall. What dimensions give the maximum area?

Answers

I want to say a 100m on each side.

since it’s against a barn wall, then there would be three sides left. But I could be wrong. ¯\_(ツ)_/¯

By mistake, you added salt instead of sugar to the
oil. How can you remove the salt?

Answers

Answer: Evaporate the water by boiling it in a pot with a lid or another container. This separates both substances as the boiling point for water is much lower than salt, this method is called simple distillation.

Answer:

Salt is ionic, and oil is covalent. If you add water, the salt will dissolve in the water, and the oil will float to the top. You could then skim the oil and start over with sugar. To double-check, you could even make sure the oil does not conduct electricity!

Step-by-step explanation:

6. If RT = 4x, find the value of x and RS. x= RS = S RT = *​

Answers

Answer: 4

4x = 4

S RT = 4

Answer = 4

i am not so sure.

What is the constant of variation, k, of the direct variation, y = kx, through (–3, 2)?

Answers

y = kx ⇒ k = y/x = 2/(-3) = -2/3

Answer: k = -2/3
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