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3 years ago

Solve the inequality x - 3 > 7

Mathematics

2 answers:

Black_prince [1.1K]3 years ago

6 0

Answer:

x > 10

Step-by-step explanation:

-3 would cross the > sign to make it positive

so 7 + 3 = 10

Katen [24]3 years ago

4 0

Answer:

x > 10

Step-by-step explanation:

Given

x - 3 > 7 ( add 3 to both sides )

x > 10

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13. Given that y varies as x^2 and that y = 36 when x=3, find:

saw5 [17]

Answer:

K=4

Y=16

X=4

Step-by-step explanation:

$y = kx {}^{2} \\ finding \: k \: when \: y= 36 \: and \: x = 3 \\ 36 = k(3) {}^{2} \\ 36 = 9k \\ dividing \: through \: by \: 9 \\ \frac{36}{9} = \frac{9k}{9} \\ 4 = k \\ k = 4 \\ findnig \: y \: when \: x = 2 \\ y = 4(2) {}^{2} \\ y = 4 \times 4 = 16 \\ finding \: x \: when \: y = 64 \\ 64 = 4 \times x \\ 64 = 4x \\ dividing \: through \: by \: 4 \\ \frac{64}{4} = \frac{4x {}^{2} }{4} \\ 16 = x {}^{2} \\ square \: root \: bothsides \\ \sqrt{16} = x {}^{2} \\ 4 = x \\ x = 4$

3 0

2 years ago

A car wash detailed 288 cars in 9 hours. At what rate did the car wash detail cars in cars per hour? A. 31 cars per hour B. 33 c

natta225 [31]

Divide the number of cars by the number of hours:

288 / 9 = 32 cars per hour.

4 0

3 years ago

How did I get a 2 here (simplifying ratios)

PilotLPTM [1.2K]

Answer:

$\frac{2x {}^{2} + 14x + 24 }{4 {x}^{2} + 4x - 48 } = \frac{x + 4}{2(x - 2)}$

Step-by-step explanation:

Please see attached picture for full solution.

4 0

3 years ago

Donal currently has 7,200 points in his fantasy baseball league, which is 20% more points than Scott How many points does Scott

zlopas [31]

Answer:

5760

Step-by-step explanation:

7200-20%=5760

7 0

4 years ago

What is the exact radian measure of an angle of 132

Pepsi [2]

Since we know that in π radians there are 180°, thus how many radians in 132°?

$\bf \begin{array}{ccll}
de grees&radians\\
\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\
180&\pi \\
132&x
\end{array}\implies \cfrac{180}{132}=\cfrac{\pi }{x}\implies x=\cfrac{132\cdot \pi }{180}\implies \stackrel{simplified}{\cfrac{11\pi }{15}}$

6 0

3 years ago