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3 years ago

MATH/Extra points

Mathematics

1 answer:

Artemon [7]3 years ago

7 0

9514 1404 393

Answer:

2.5

Step-by-step explanation:

The graph shows the curve extends downward to y = 2.5 in several places.

2.5 is the minimum value

_____

Additional comment

In this case, we assume the arrows at the ends of the curve mean the curve continues in the same fashion (same period and amplitude) as the part shown. For some graphs, arrows at the ends of the curve mean the graph extends to infinity in that direction.

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almond37 [142]

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4 years ago

A loaf of bread originally priced at $3.49 has been discounted 10%.

sashaice [31]

$3.49 X .10 = .35

the discount is .35 or 35 cents
final cost
3.49-.35= $3.14

hope this helps

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3 years ago

Read 2 more answers

A fence 6 ft high runs parallel to the wall of a house at a distance of 5 ft. Find the length of the shortest ladder that extend

Anettt [7]

Answer:

L = 15.53 ft

Step-by-step explanation:

using diagram which is attached below

now, using Pythagoras theorem

L² = b² + (5 + x)²...............(1)

using similarity of triangle

$\dfrac{x}{6}=\dfrac{5+x}{b}$

$b=\dfrac{5+x}{x}6$

from equation (1)

$L^2 = (\dfrac{5+x}{x}6)^2 + (5 + x)^2$

$= (5+x)^2(1+\dfrac{36}{x^2})$

$\frac{\mathrm{d} L^2}{\mathrm{d} x}= 2(5+x)(1+\dfrac{36}{x^2})+(5+x)^2(\dfrac{-2\times 36}{x^3})$

$\frac{\mathrm{d} L^2}{\mathrm{d} x}= (5+x)(2-\dfrac{72\times 5}{x^3})$

for maxima or minima

$\frac{\mathrm{d} L^2}{\mathrm{d} x}=0$

x = -5 and x = ∛190 = 5.74

on second derivative 5.74 is the value which comes out to be minimal value which is the distance between the fence and ladder

now,

L² = 241.38

L = 15.53 ft

7 0

3 years ago

Mick paid $2.94 in sales tax on an item that cost $42.00 before tax. At that rate, how much would he paying sales tax before an

sergiy2304 [10]

To answer this question you would have two steps involved. The first step would be to find the percentage of $42 that gives us $2.94. Set up an equation 42x=2.94. Divide both sides by 42 to get the decimal 0.07. This equal 7%. Take this percentage multiplied by the $58. You need to change the 7% into 0.07 to be able to calculate it. 0.07 x 58 = $4.06 sales tax.

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4 years ago

Please help me please

spayn [35]

Answer:

A. 34°

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS