3 years ago

a scooter was $65 last week, but now it costs $40. what is the percent decrease? round your answer to the nearest tenth

Mathematics

1 answer:

aliya0001 [1]3 years ago

8 0

Answer:

Step-by-step explanation:

65 - 40 = 25 round it 30

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Complete the equation to represent finding x, the greater integer.<br><br> x(x – ) = 143

mart [117]

Answer:

x would equal -11 or 13

Step-by-step Explanation:

x(x - 2) - 143 = 0

x^2 - 2x - 143 = 0

-2x + x^2 = 143

-143 + (-2x) + x^2 = 0

(x - 13)(x + 11)

x - 13 = 0

Add 13 to both sides

x = 13

x + 11 = 0

Subtract 11 from both sides

x = -11

3 0

3 years ago

If the length of the legs of a right triangle are 5 m and 7 m, what is the length of the hypotenuse?

irakobra [83]

Answer:

$c = 8.60232526704263$

$c \approx8.6$

Step-by-step explanation:

${c}^{2} = {a}^{2} + {b}^{2}$

$c = \sqrt{ {a}^{2} + {b}^{2} }$

$c = \sqrt{ {5}^{2} + {7}^{2} }$

$c = \sqrt{25 + 49}$

$c = \sqrt{74}$

$c = 8.60232526704263$

$c \approx8.6$

7 0

2 years ago

Can someone help me with these? I need some help.

nata0808 [166]

Answer:

1) $\sqrt{569}$ 2) 8 3) 0.8 4) $\sqrt[10]{61}$

Step-by-step explanation:

The equation for pythagoream theorem is

a^2 + b^2 = c^2 (the caret "^" represents exponents)

A = a side length

B = another side length

C = the hypotnuse which is the slanted side of the right triangle.

To solve these problems plug in the known values into the equation then solve.

6 0

3 years ago

If f(x) =2x^2 + 5 and g(x) = x^2 - 2 find (f-g) (x)

zzz [600]

The answer would be 420 this isn’t actually the answer i just need points sorry bruh

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3 years ago

Simplify the expression:<br> (1 2/7)(-4 1/5)

stealth61 [152]

Answer:

-27/5 or -5 2/5

Step-by-step explanation:

Simplify

1 2/7 to 9/7

-4 1/5 to -21/5

multiply together

(9)(-21)/(7)(5)

-189/35

u can simplify by diving by 5 to get

-27/5

4 0

3 years ago