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Fiesta28 [93]
3 years ago
6

563-273 do you have to regroup

Mathematics
1 answer:
Marizza181 [45]3 years ago
8 0
Yes you do because you cannot subtract 7 from 6.
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Find the area of the triangle. Round the answer to the nearest tenth. A. 4.4 square units B. 5.2 square units C. 6.8 square unit
icang [17]

Answer:

A. 4.4 units²

Step-by-step explanation:

Area of a Triangle: A = 1/2bh

sin∅ = opposite/hypotenuse

cos∅ = adjacent/hypotenuse

Step 1: Draw the altitude down the center of the triangle

- We should get a perpendicular bisector that creates 90° ∠ and JM = KM

- We should also see that we use sin∅ to find the <em>h</em> height of the triangle and that we use cos∅ to find length of JM to find <em>b</em> base of the triangle

Step 2: Find <em>h</em>

sin70° = h/3.7

3.7sin70° = h

h = 3.47686

Step 3: Find <em>b</em>

cos70° = JM/3.7

3.7cos70° = JM

JM = 1.26547

Step 4: Find entire length base JK

JM + KM = JK

JM = KM (Definition of Perpendicular bisector)

2(JM) = JK

2(1.26547) = 2.53095

b = 2.53095

Step 5: Find area

A = 1/2(3.47686)(2.53095)

A = 4.39988

A ≈ 4.4

8 0
3 years ago
2.1(0.2x−1.4)=1.3(0.4x−3.5)<br> simplify <br> lots of points
Zina [86]

Answer:

you need a y to get at least 1 point

5 0
3 years ago
Emilio and friends are in a submarine 500 feet below sea level. They continue to dive 35 feet each hour for 7 hours.
katovenus [111]
You would write the equation out as x=35x+500

You substitute x for 7 so it’s x= 35(7)+500

So the answer will be 745 dollars
4 0
2 years ago
Find the exterior angle of angle c.
Bingel [31]

Answer:

Step-by-step explanation:

This triangle is a polygon. By definition, all the exterior angles of ANY polygon add up to equal 360 degrees. So we add up all the exterior angles and solve for x. That's the first step.

7x - 2 + 9x - 31 + 4x + 33 = 360

Combining like terms gives us

20x + 0 = 360 or simply

20x = 360 so

x = 18

In order to find the value of the angle exterior to angle C, we sub 18 in for x:

7(18) - 2 = 124

4 0
3 years ago
Ashley’s car insurance costs her $115 per month. How much does it cost her per year?
sladkih [1.3K]

Answer:

$1,380 per year.

Step-by-step explanation:

Theres 12 months in a year so multiplying $115 by 12 will get you $1,380 because she pays $115 per month.

4 0
3 years ago
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