2 years ago

Chất nào sau đây là muối dung hòa CH

Mathematics

1 answer:

S_A_V [24]2 years ago

8 0

How is this a math question lol ?

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What’s this topic called

garri49 [273]

Answer: MATH

Step-by-step explanation:

8 0

2 years ago

Read 2 more answers

Solve the compound inequality 7x > –35 and 3x ≤ 30.

docker41 [41]

Answer:

x>-5 x ≤10

Step-by-step explanation:

-35/7=-5

7x/7=x

3x/3=x

30/3=10

5 0

2 years ago

A daily mail is delivered to your house between 1:00 p.m. and 5:00 p.m. Assume delivery times follow the continuous uniform dist

german

Answer:

25% of deliveries

Step-by-step explanation:

This is a uniform distribution with parameters a = 1.00 and b =5.00. With these conditions, the following probability distribution functions can be applied:

$P(X \leq x)=\frac{x-a}{b-a}=\frac{x-1.00}{5.00-1.00}\\P(X \leq x) = \frac{x-1}{4}\\P(X \geq x) = 1- P(X \leq x) \\P(X \geq x)=1- \frac{x-1}{4}$

Therefore, the probability that X ≥ 4:00 p.m. is given by

$P(X \geq 4)=1- \frac{4-1}{4}\\P(X \geq 4)=0.25=25\%$

Thus, 25% of deliveries are made after 4:00 p/m.

7 0

3 years ago

Clara found the product of 3 – 6y2 and y2 + 2. Her work is shown below. (3 – 6y2)(y2 + 2) = 3(y2) + (–6y2)(2) = 3y2 – 12y2 = –9y

vladimir2022 [97]

Answer:

No, She did not use the distributive property correctly.

Step-by-step explanation:

While multiplying $(3-6y^2)(y^2+2)$ , he did not use distributive property correctly. She only multiplied 3 with $y^2$ and not with 2. Also she multiplied $-6y^2$ only with 2 and not with $y^2$ .

6 0

2 years ago

Find the hcf of 24x3yz4,30x2y2z3 and 36 x3y2z3

dusya [7]

Answer:

8xyz

Step-by-step explanation:

multiply all numbers and alphabets

288xyz, 2.360xyz, 3.648xyz
find HCF of numbers and after multiply by xyz
288={2×2×2×31}
360={2×2×2×3×3×5}
648={2×2×2×3×3×3×3}
HCF={2×2×2}xyz
8xyz

7 0

2 years ago