Mathematics: Refrigerator (5810) Stove ($1010) Dishwasher ($590) Microwave (595) David and Kim are purchasing new appliances for their kitchen. The items that they plan to buy are shown. Which is a reasonable estimate for the amount of money that David and Kim will spend before tax? es $1500 $2000 $2200 $2500

Refrigerator (5810) Stove ($1010) Dishwasher ($590) - id581010105905452208, heybrothwrlogan

Ответ:

kannstyles709

20.01.2022

Mathematics

Real amount: $2505

Estimate: $2500

Step-by-step explanation:

Refrigerator ($810)

Stove ($1010)

Dishwasher ($590)

Microwave ($95)

Necessary amount:

810+1010+590+95=$2505

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Ответ:

okitsfrizz2323

05.09.2022

Mathematics

sin2y =240/289 where 0<y <π/2

Step-by-step explanation:

Given sin(x) = 1/3 and sec(y) = 17/15 , where x and y lie between 0 and π/2.

We now that

$cosy = \frac{1}{secy} =\frac{15}{17} \\and\\\text{using identity } sin^2y+cos^2y=1\\\text{we have}\\siny=\sqrt{1-cos^2y}=\sqrt{1-(\frac{15}{17} )^2}=\sqrt{1-\frac{225}{289} }=\sqrt{\frac{64}{289} }=\frac{8}{17} \\\Rightarrow\ siny=\frac{8}{17} \\\text{Now we are using identity sin2A=2sinAcosA we have}\\sin2y=2\cdot\ siny\cdot\ cosy=2\cdot\ \frac{8}{17} \cdot\ \frac{15}{17} =\frac{240}{289}$

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Refrigerator (5810)
Stove ($1010)
Dishwasher ($590)
Microwave (595)
David and Kim are purchasing new appliances for their kitchen. The items that they plan to buy are shown.
Which is a reasonable estimate for the amount of money that David and Kim will spend before tax?
es
$1500
$2000
$2200
$2500

Ответ:

Ответ:

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