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olga2289 [7]
3 years ago
10

Can someone help me with this maths question

Mathematics
1 answer:
vazorg [7]3 years ago
4 0

https://www.force11.org/event/watch-england-vs-south-africa-live-stream-watch-rugby-friendly-3rd-nov

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If Alberto's bill is $45.47 with tax. And he wants to leave a 20% tip. How much tip will he leave? * round to the nearest dollar
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i tried but all i got was like 80 percent

Step-by-step explanation:

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an electronics company is designing a watch with a face that is in the shape of a hexagon and two congruent trapezoids attached.
nalin [4]

The total area of the face of the watch to the nearest tenth of a square centimemter is 9.0 cm²

Since an electronics company is designing a watch with a face that is in the shape of a hexagon and two congruent trapezoids attached. The heights of the trapezoids and the apothem of the hexagon measure 2 centimeters each, and the length of the shorter base of each trapezoid is 1.5 centimeters, the radii of the hexagon, and the base of the trapezoid form a triangle of

  • height, h = apothem of the hexagon = 2 cm and
  • base, b = length of shorter base of trapezoid.
<h3>Area of the triangle</h3>

So, the area of this triangle is A = 1/2bh

= 1/2 × 1. 5 cm × 2 cm

= 1.5 cm × 1 cm

= 1.5 cm²

<h3>Area of the hexagon</h3>

Since there are 6 of such triangles in the hexagon, the area of the hexagon, A' = 6A

= 6 × 1.5 cm²

= 9.0 cm²

So, the total area of the face of the watch to the nearest tenth of a square centimemter is 9.0 cm²

Learn more about area of a hexagon here:

brainly.com/question/369332

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All prime numbers are odd change to conditional statement
patriot [66]
Not all prime numbers are odd, 2 is not odd and it's a prime number
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A submarine was situated 800 feet below sea level. If it ascends 250 feet, what is its new position?
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The sub is now 550 feet below sea level
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what does the adjusted r squared tell us about the relationship between sales, price, and advertising? the model explains about
svp [43]

The modified r squared tells us more about the relationship among sales, price, as well as advertising by explaining approximately 60% of a variance in sales.

<h3>Define the term adjusted r squared?</h3>

R-squared (R2) would be a statistical measure that quantifies the proportion of the variation explained from an independent variable other variables within a regression model for a dependent variable.

  • R-squared describes how much the variance with one variable describes the variance of the other.
  • So, if a model's R2 is 0.50, the model's inputs can explain roughly half of a observed variation.
  • A score of 70 to 100 shows that a specific portfolio closely reflects the underlying stock index, whereas a score of 0 to 40 indicates a relatively poor correlation the with index.
  • Higher R-squared scores also suggest that beta measurements are more reliable. The volatility of either a security or portfolio is measured by beta.

Thus, the modified r squared tells us more about the relationship among sales, price, as well as advertising by explaining approximately 60% of a variance in sales.

To know more about the adjusted r squared, here

brainly.com/question/14364216

#SPJ4

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