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3 years ago

Help me, please i really need it

Mathematics

2 answers:

dem82 [27]3 years ago

6 0

Did you get it right?

skad [1K]3 years ago

3 0

Answer:

Rule : When we rotate a figure of 90 degrees clockwise, each point of the given figure has to be changed from (x, y) to (y, -x) and graph the rotated figure. Let us look at some examples to understand how 90 degree clockwise rotation can be done on a figure.

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Rsm question!How many liters of water must be added to 15 liters of 40 % sugar syrup to obtain 30 % sugar syrup?

Lyrx [107]

Answer:

$5\ liters$

Step-by-step explanation:

$Sugar\ in\ the\ syrup=40\%\\\\40\%\ of\ 15\ ltrs =\frac{40}{100}\times 15=6\ ltrs\\\\Now\ we\ have\ to\ obtain\ 30\%\ sugar\ syrup. Let\ total\ quantity\ of\ syrup=x\\\\30\%\ of\ x=6\\\\\frac{30}{100}\times x=6\\\\0.3\times x=6\\\\x=\frac{6}{0.3}\\\\x=20\ ltrs\\\\The\ amount\ of\ water\ to\ be\ added =20-15=5\ liters$

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3 years ago

What is the sum 4x+1/x+2 + x-1/3x

Yuri [45]

Answer:

$\dfrac{4x+1}{x+2}+\dfrac{x-1}{3x}=\dfrac{13x^2+4x-2}{3x^2+6x}$

Step-by-step explanation:

$Domain:\\x+2\neq0\ \wedge\ 3x\neq0\\\\x\neq-2\ \wedge\ x\neq0$

$\dfrac{4x+1}{x+2}+\dfrac{x-1}{3x}=\dfrac{(4x+1)(3x)}{(x+2)(3x)}+\dfrac{(x-1)(x+2)}{(3x)(x+2)}\\\\=\dfrac{(4x)(3x)+(1)(3x)+(x)(x)+(x)(2)+(-1)(x)+(-1)(2)}{(3x)(x+2)}\\\\=\dfrac{12x^2+3x+x^2+2x-x-2}{(3x)(x)+(3x)(2)}\\\\=\dfrac{13x^2+4x-2}{3x^2+6x}$

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3 years ago

Since Neil Armstrong was the first person to walk on the. moon, the contrapositive is

Romashka-Z-Leto [24]

Answer:

If nobody walked on the moon, then Neil Armstrong didn't

Step-by-step explanation:

The contrapositive flips the sign of "Neil Armstrong" and the "moon," and also switches their position, so you will switch the hypothesis and conclusion as well

7 0

3 years ago

A rectangular office is divided into two identical parts using a curtain as shown in the diagram.

alexgriva [62]

Answer:

200ft squared

Step-by-step explanation:

4 x 10 x 10 = 400

400 divided by 2 = 200

200 is the answer

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4 years ago

Solve the inequality <br> 3(x – 2) + 1 ≥ x + 2(x + 2)

leva [86]

Answer:

No solution.

Step-by-step explanation:

Step 1: Write inequality

3(x - 2) + 1 ≥ x + 2(x + 2)

Step 2: Solve for <em>x</em>

Distribute: 3x - 6 + 1 ≥ x + 2x + 4
Combine like terms: 3x - 5 ≥ 3x + 4
Add 5 to both sides: 3x ≥ 3x + 9
Subtract 3x on both sides: 0 ≥ 9

Here we see that the statement is false. Therefore, you cannot solve for the inequality.

3 0

3 years ago

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