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3 years ago

What is 0.75×2 please show your work need a answer today

Mathematics

2 answers:

attashe74 [19]3 years ago

8 0

1.50 that should be it and i dont know how to show my work on a computer SORRY.

Aleonysh [2.5K]3 years ago

4 0

1
.75
x 2 <-----Multiply
---------
1.50 <----move the decimal in place

Hope this helps..

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Can someone please help me answer these 2 questions with a full explanation so I can do the rest on my own? will give brainliest

Anton [14]

Answer:

a) ∠ABC = 54°

a) ∠ABC = 43°

Step-by-step explanation:

Trigonometric ratios

$\sf \sin(\theta)=\dfrac{O}{H}\quad\cos(\theta)=\dfrac{A}{H}\quad\tan(\theta)=\dfrac{O}{A}$

where:

$\theta$ is the angle
O is the side opposite the angle
A is the side adjacent the angle
H is the hypotenuse (the side opposite the right angle)

Part (a)

Use the cos trig ratio to find an expression for the measure of BD:

$\implies \sf \cos (38^{\circ})=\dfrac{BD}{24.3}$

$\implies \sf BD=24.3\cos (38^{\circ})$

Use the cos trig ratio and the found length of BD to find angle ABD:

$\sf \implies \cos(ABD)=\dfrac{BD}{19.9}$

$\sf \implies \angle ABD=\cos^{-1}\left(\dfrac{24.3\cos (38^{\circ})}{19.9}\right)$

$\sf \implies \angle ABD=15.79446612...^{\circ}$

Therefore:

$\sf \implies \angle ABC=\angle ADB + 38^{\circ}$

$\sf \implies \angle ABC=15.79446612...^{\circ}+ 38^{\circ}$

$\sf \implies \angle ABC=54^{\circ}\:\:(nearest\:degree)$

Part (b)

Use the tan trig ratio to find angle CAD:

$\implies \sf \tan(CAD)=\dfrac{4.9}{7.4}$

$\implies \sf \angle CAD=\tan^{-1} \left(\dfrac{4.9}{7.4}\right)$

$\implies \sf \angle CAD=33.5110188...^{\circ}$

Therefore:

$\sf \implies \angle BAD=13^{\circ}+33.5110188...^{\circ}$

$\sf \implies \angle BAD=46.5110188...^{\circ}$

∠ABC = ∠ABD

Interior angles of a triangle sum to 180°

$\sf \implies \angle ABD + \angle BAD + \angle BDA=180^{\circ}$

$\sf \implies \angle ABC + 46.5110188...^{\circ} + 90^{\circ}=180^{\circ}$

$\sf \implies \angle ABC=43^{\circ}\:\:(nearest\:degree)$

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2 years ago

Can someone help me with this please.

zalisa [80]

Answer:

im not good at math

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

F(x) = x2 + 5 When the domain is ={-2.-1,1} what is the range

Citrus2011 [14]

Answer:

Range = {6, 9}.

Step-by-step explanation:

Just plug in the 3 numbers:

Range = (-2)^2+5 , (-1)^2 + 5 and 1^1 + 5

= 9, 6 and 6.

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3 years ago

Determine the lateral surface area and the total surface for the pyramid. Round your answer to the nearest whole number.

777dan777 [17]

Answer:

$L = 704$

$S = 832$

Step-by-step explanation:

Given

$H = 22$ --- Height

$W = 8$ --- Width

$L=8$ ---- Length

Solving (a): The lateral surface area (L)

This is calculated as:

$L = 2 * (L + W) * H$

This gives:

$L = 2 * (8 + 8) * 22$

$L = 2 * 16 * 22$

$L = 704$

Solving (b): The total surface area (T)

This is calculated as:

$S = 2 * (LW + WH + LH)$

This gives:

$S = 2 * (8*8 + 8*22+ 8*22)$

$S = 2 * (64 + 176+ 176)$

$S = 2 * 416$

$S = 832$

3 0

3 years ago

a department store holds a year-end clearance sale that includes a 19.8% discount on cosmetics. find the sale price of a bottle

Ivan

The sale price of a bottle of perfume is $40.16 if its original price was 50.07%.

What is discount?

By paying a charge or fee, a debtor might purchase the right to postpone payments to a creditor for a predetermined length of time through the financial mechanism known as discounting. In essence, the party who is currently owing money purchases the right to postpone payment until a later time.

Let the original price of the perfume bottle is, $50.07

The sale on the cosmetics is 19.8%.

So, the discount on the perfume bottle is,

50.07 x 0.198 = 9.91368

Therefore, the sale price of perfume is,

$50.07 - $9.91368 = $40.15614

Hence, the sale price of perfume is, $40.16

To know more about discount, click on the link

brainly.com/question/7459025

#SPJ4

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1 year ago