Each quilt requires 3 7/8 yards of fabric how many yards will you need for 1, 2, 3,4 quilts.

Mathematics

1 answer:

ICE Princess25 [194]3 years ago

7 0

Step-by-step explanation:

Given,

No. of yards required for each quit = 3 7/8

can also be written as = 59/8

so,

yards,

required for 2 quilts = 2 × 59/8 = 14 3/4

required for 3 quilts = 3 × 59/8 = 23 4/8

required for 4 quilts = 4 × 59/8 = 8 1/2

hope this answer helps you dear.....take care!

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What is the y-value of the vertex of the function f(x)=-(x-3)(x+11)

lutik1710 [3]

so, this is a quadratic equation, meaning two solutions, and we have a factored form of it, meaning you can get the solutions by simply zeroing out the f(x).

$\bf \stackrel{f(x)}{0}=-(x-3)(x+11)\implies 0=(x-3)(x+11)\implies x= \begin{cases} 3\\ -11 \end{cases} \\\\\\ \boxed{-11}\stackrel{\textit{\large 7 units}}{\rule[0.35em]{10em}{0.25pt}}-4\stackrel{\textit{\large 7 units}}{\rule[0.35em]{10em}{0.25pt}}\boxed{3}$

so the zeros/solutions are at x = 3 and x = -11, now, bearing in mind the vertex will be half-way between those two, checking the number line, that midpoint will be at x = -4, so the vertex is right there, well, what's f(x) when x = -4?

$\bf f(-4)=-(-4-3)(-4+11)\implies f(-4)=7(7)\implies f(-4)=49 \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ ~\hfill \stackrel{vertex}{(-4~~,~~49)}~\hfill$