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3 years ago

1. Find the area of the triangle: 17 16

Mathematics

1 answer:

Afina-wow [57]3 years ago

8 0

Answer:

147

Step-by-step explanation:

To get this answer you add up your two sides, in this case 17 and 16, to get 33. Then you subtract 180 and 33 to get 147. The 180 comes from the rule that all triangles add up to 180.

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Mia had $22. Then she started to receive $4 a week as an allowance. She plans to save all of her money for a bicycle and draws a

saw5 [17]

Answer:

first y then x because y represents 22 and x represents 4 a week.

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2 years ago

Estimate the area of Alberta in square miles. Show your reasoning

ella [17]

Answer: About $278,250\ mi^2$

Step-by-step explanation:

The missing figure is attached.

Notice in the first picture that Alberta has a complex shape.

You can calculate the area of a complex shape by decomposing it into polygons whose areas can be calculated easily.

Observe the second picture. Notice that it can be descompose into two polygons: A trapezoid and a rectangle.

The area of the trapezoid can be calcualted with the formula:

$A_t=\frac{h}{2}(B+b)$

Where "h" is the height, "B" is the long base and "b" is short base.

And the area of the rectangle can be found with the formula:

$A_r=lw$

Wkere "l" is the lenght and "w" is the width.

Then, the apprximate area of Alberta is:

$A=\frac{h}{2}(B+b)+lw$

Substituting vallues, you get:

$A=(\frac{(410\ mi-180\ mi)}{2})(760\ mi+470\ mi)+(180\ mi)(760\ im)\\\\A=141,450\ mi^2+136,800\ mi^2\\\\A=278,250\ mi^2$

Therefore, the area of of Alberta is about $278,250\ mi^2$ .

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2 years ago

Find sin(α) in the triangle.

cluponka [151]

$\frac{20}{29}$ Answer:

sin α = $\frac{20}{29}$

Step-by-step explanation:

sin α = $\frac{opposite}{hypotenuse}$ = $\frac{BC}{AB}$ = $\frac{20}{29}$

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2 years ago

Which is the solution to the inequality 1/4+x<5/8

Masteriza [31]

Answer:

x<3/8

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Step-by-step explanation:

Step 1: Simplify both sides of the inequality.

x+1/4<5/8

Step 2: Subtract 1/4 from both sides.

x + 1/4 - 1/4 < 5/8 - 1/4

x<3/8

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2 years ago

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3 years ago