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3 years ago

I need help with this math problem please!

Mathematics

1 answer:

Alla [95]3 years ago

5 0

AB is most likely 8 because you can solve for the missing half length with Pythagorean theorem which gives 4 and then double because of the inherent properties of the lines

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a restaurant sold eight times as many salads as they sold steaks.if they sold four steaks, how many salads did they sell in all

garri49 [273]

They sold 32 salads.

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3 years ago

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What is the x value with that y =15 -3x and y =0?

kumpel [21]

$\bf y=15-3x~\hspace{5em} \stackrel{y=0}{0=15-3x}\implies 3x=15\implies x=\cfrac{15}{3}\implies x = 5$

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3 years ago

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What is the ratio of the circumferences for two circles with areas 6π m2 and 150π m2?

hichkok12 [17]

$\bigg( \dfrac{Length_1}{Length_2} \bigg)^2 = \bigg( \dfrac{Area_1}{Area_2}\bigg)
$

$\bigg( \dfrac{Length_1}{Length_2} \bigg)^2 = \bigg( \dfrac{6 \pi }{150 \pi }\bigg)
$

$\bigg( \dfrac{Length_1}{Length_2} \bigg)^2 = \bigg( \dfrac{1 }{25}\bigg)
$

$\dfrac{Length_1}{Length_2} = \sqrt{ \dfrac{1}{25} } 
$

$\dfrac{Length_1}{Length_2} = \dfrac{1}{5}$

-------------------------------------------------------------
Answer: The ratio of the two circles = 1 :5
-------------------------------------------------------------

8 0

3 years ago

Given 3x^2+x-4/x-1 what are the domain and range

Katarina [22]

Answer:

doman: x ≠ 1
range: y ≠ 7

Step-by-step explanation:

The domain is the horizontal extent of the graph, the set of x-values for which the function is defined. The range is the vertical extent of the graph, the set of y-values defined by the function.

<h3>Simplified</h3>

The given function is undefined where its denominator is zero, at x=1. Everywhere else, it can be simplified to ...

$\dfrac{3x^2+x-4}{x-1}=\dfrac{(x-1)(3x+4)}{(x-1)}=3x+4\quad x\ne 1$

<h3>Domain</h3>

The simplified function (3x+4) is defined for all values of x except x=1. The simplest description is ...

x ≠ 1

In interval notation, this is ...

(-∞, 1) ∪ (1, ∞)

<h3>Range</h3>

The simplified function is capable of producing all values of y except the one corresponding to x=1: 3(1)+4 = 7. The simplest description is ...

y ≠ 7

In interval notation, this is ...

(-∞, 7) ∪ (7, ∞)

6 0

2 years ago

If the profit of Tk.x in 4 years at the rate of x% is Tk.x, then what is the value of x?

I am Lyosha [343]

Answer:

x = 25

Step-by-step explanation:

Given:

Amount invest p = Tk.x

Number of year t = 4

Rate r = x%

Profit = Tk.x

Find:

Value of x

Computation:

Profit = prt / 100

Tk.x = [(Tk.x)(x)(4)] / 100

x = 100 / 4

x = 25

3 0

3 years ago