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3 years ago

13

A local fabric store advertises three and one-half yards of fabric for $4.50. If their everyday price per year is $1.15, is it l

ess expensive to buy the fabric while it is on sale?

1 answer:

pentagon [3]3 years ago

3 0

Answer:

one spool of thread costs $1.89

Step-by-step explanation:

$8.99x3=$26.97

$32.64-$26.97=$5.76

$5.76 divided by 3=$1.89

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Which shape has four congruent sides and two sets of parallel sides?quadrilateralrectangleparallelogramrhombus

Arlecino [84]

We are asked that, which shape has four congruent sides and two sets of parallel side.

From the options, the answer is Rhombus.

7 0

1 year ago

A park has a large circle painted in the middle of the playground area. The circle is divided into 444 equal sections, and each

balu736 [363]

Answer:

The area of each section of the circle is $A=25\pi\ m^{2}$

Step-by-step explanation:

we know that

Each section represent a quarter of circle

The area of a quarter of circle is equal to

$A=\frac{1}{4}\pi r^{2}$

we have

$r=10\ m$

substitute

$A=\frac{1}{4}\pi (10)^{2}$

$A=25\pi\ m^{2}$

7 0

3 years ago

Vertex of -2 (x - 3)^2 - 2

marin [14]

Answer:

The vertex is (-3,-2)

Step-by-step explanation:

We can write the equation for a parabola in the form

y = a(x-h)^2 +k where (h,k) is the vertex

y =-2 (x - 3)^2 - 2

h = -3 and k =-2

The vertex is (-3,-2)

3 0

3 years ago

The number of mold cells doubles every 12 minutes. At this moment, there are x mold cells present on a piece of bread. Which of

lisabon 2012 [21]

Answer:

Step-by-step explanation:

Suppose that at time $t_0$ we have x mold cells. We are told that after 12 minutes the amount present is double. That is a $t= t_0+12$ we have 2x cells. Then, at $t = t_0+24$ we have (2x)*2 = 4x. We can continue as follows

$t: t_0+36$ we have (4x)*2 = 8x.

$t: t_0+48$ we have (8x)*2 = 16x

$t: t_0+60$ (one hour later) we have (16x)*2 = 32x.

So after one hour from now we have 32x cells.

5 0

3 years ago

find an equation of the line through the given points. give the final answer in slope-intercept form (-2,2) (4,-1)

Pachacha [2.7K]

to get the equation of any straight line, we simply need two points off of it, let's use the points in the picture below.

$(\stackrel{x_1}{-2}~,~\stackrel{y_1}{2})\qquad (\stackrel{x_2}{4}~,~\stackrel{y_2}{-1}) \\\\\\ \stackrel{slope}{m}\implies \cfrac{\stackrel{rise} {\stackrel{y_2}{-1}-\stackrel{y1}{2}}}{\underset{run} {\underset{x_2}{4}-\underset{x_1}{(-2)}}}\implies \cfrac{-3}{4+2}\implies \cfrac{-3}{6}\implies -\cfrac{1}{2}$

$\begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-\stackrel{y_1}{2}=\stackrel{m}{-\cfrac{1}{2}}(x-\stackrel{x_1}{(-2)}) \\\\\\ y-2 = -\cfrac{1}{2}(x+2)\implies y-2=-\cfrac{1}{2}x-1\implies y=-\cfrac{1}{2}x+1$

4 0

2 years ago