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3 years ago

1. Mia is making a bookcase and has 80 % inches of wood. If she uses 25 %

Mathematics

1 answer:

Nikitich [7]3 years ago

6 0

She would have 40% left for the sides. She took off 50% (25%+25%), then 50% of 80 is 40. Hope it helps.

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A-3b=4;2a=6b-9 Answer by elimination, please include the entire work on how you got to your answer. According to my math teacher

Airida [17]

Answer:there is no solution. The question is wrong

Step-by-step explanation:

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3 years ago

Find a number such that three less than four times the number is two.

dimaraw [331]

Answer:
X=5/4 or 1.25

Solution:
Make algebraic equation to solve
4x-3=2
Solve
4x=2+3=5
X=5/4

Hope this helps. Please mark brainliest.

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3 years ago

What is 7 billion in standard form?

zimovet [89]

If by standard from you mean numbers (123) and not words then

1 milllion=1000 thousand or 1000*1000 or 1,000,000
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3 years ago

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What is the period of f(x) = sin(x)?

Lady bird [3.3K]

The regular period is 2pi. If you look up or type in a graphing calculator you can see that's when the sine function starts to repeat itself.

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3 years ago

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HELP!!! URGENT!!! I WILL GIVE BRAINLEIST THING

lisov135 [29]

Answer:

Horizontal distance = 0 m and 6 m

Step-by-step explanation:

Height of a rider in a roller coaster has been defined by the equation,

y = $\frac{1}{3}x^{2}-2x+8$

Here x = rider's horizontal distance from the start of the ride

i). $y=\frac{1}{3}x^{2}-2x+8$

$=\frac{1}{3}(x^{2}-6x+24)$

$=\frac{1}{3}[x^{2}-2(3x)+9-9+24]$

$=\frac{1}{3}[(x^{2}-2(3x)+9)+15]$

$=\frac{1}{3}[(x-3)^2+15]$

$=\frac{1}{3}(x-3)^2+5$

ii). Since, the parabolic graph for the given equation opens upwards,

Vertex of the parabola will be the lowest point of the rider on the roller coaster.

From the equation,

Vertex → (3, 5)

Therefore, minimum height of the rider will be the y-coordinate of the vertex.

Minimum height of the rider = 5 m

iii). If h = 8 m,

$8=\frac{1}{3}(x-3)^2+5$

$3=\frac{1}{3}(x-3)^2$

(x - 3)² = 9

x = 3 ± 3

x = 0, 6 m

Therefore, at 8 m height of the roller coaster, horizontal distance of the rider will be x = 0 and 6 m

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3 years ago