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3 years ago

10

The dot plot below shows the drawing scores of some students : which statement best describes the shape of the data

1 answer:

olganol [36]3 years ago

5 0

Answer:1

Step-by-step explanation:

I need dem points

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A clothing manufacturer uses the model a=f+4−−−−√−36−f−−−−−√ to estimate the amount of fabric to order from a mill. In the formu

Anit [1.1K]

Questions:

A clothing manufacturer uses the model a = √(f + 4) - √(36 - f) to estimate the amount of fabric to order from a mill. In the formula, a is the number of apparel items (in hundreds) and f is the number of units of fabric needed. If 400 apparel items will be manufactured , how many units of fabric should be ordered?

Answer:

32 units of fabrics

Step-by-step explanation:

Given

$a = \sqrt{f + 4} - \sqrt{36 - f}$

Required

Find f when a = 4

Substitute 4 for a

$4 = \sqrt{f + 4} - \sqrt{36 - f}$

Rewrite as:

$\sqrt{36 - f} + 4 = \sqrt{f + 4}$

Square both sides

$(\sqrt{36 - f} + 4)^2 = (\sqrt{f + 4})^2$

$(\sqrt{36 - f} + 4)^2 = f + 4$

$36 - f + 8\sqrt{36 - f} + 16 = f + 4$

Collect Like Terms

$8\sqrt{36 - f}= f +f+ 4 - 36 -16$

$8\sqrt{36 - f}= 2f -48$

Divide through by 2

$4\sqrt{36 - f}= f -24$

Square both sides

$16(36-f) = (f - 24)^2$

$16(36-f) = f^2 - 48f + 576$

$576-16f = f^2 - 48f + 576$

$-16f = f^2 - 48f$

Collect like terms

$f^2 - 48f + 16f = 0$

$f^2 -32f = 0$

Factorize

$f(f - 32) = 0$

$f = 0$ or $f = 32$

f can not be 0 because some units must be ordered.

So, f = 32

6 0

3 years ago

Angel has $60 and his sister has $120. Angel saves $7 per week, and his sister saves $5 per week. Which equation and solution re

dusya [7]

Answer:

9 weeks

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Help. Does anyone know how to do this?

tatuchka [14]

Answer:

x = 12, so PTQ = 40 deg

Step-by-step explanation:

first, because the two are vertically opposite, they are equal, write a formula for this:

x + 28 = 2x + 16 (minus 2x from both sides)

-1x + 28 = 16 (minus 28 from both sides)

-1x = -12 (divide both sides by -1)

x = 12

sub into formula:

12 + 28 = 40

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3 years ago

Please help me ASAP giving out brainlist.

Veseljchak [2.6K]

Answer:

yuhhhh

Step-by-step explanation:

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2 years ago

Find the product: <br><br>(i) (5 – 2x) (3 + x)

Ilya [14]

<h2><u>Solution</u>:</h2>

$\:$

$\large\red{ \longrightarrow} \pmb{ \sf{(5 – 2x) (3 + x)}}$

$\:$

$\mapsto \: \: \: \sf{5(3 + x) – 2x(3 + x)}$

$\:$

$\mapsto \: \: \: \sf{(5 × 3) + (5 × x) – (2x × 3) – (2x × x)}$

$\:$

$\leadsto \: \: \: \sf{ 15 + 5x – 6x – 2x ^{2} }$

$\:$

hope it helps!! :)

7 0

2 years ago

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