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1 year ago

21° Find the measure of the missing angle:

Mathematics

1 answer:

guapka [62]1 year ago

8 0

The answer is 69. the angle is a right angle which means it is 90 degrees. subtract 90-21 to get 69

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2x + 5 =12<br> What is x

lisabon 2012 [21]

Answer:

7/2

Step-by-step explanation:

2x=12-5....collectible like terms

2x=7

x=7/2...dividing both side by 2

3 0

3 years ago

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Easy need an awnser plz.

larisa86 [58]

The value of X is equal to 7

4 0

3 years ago

West Junior High needs to buy new fencing to go around Evaluate the formula for the perimeter of a rectangle to

LenaWriter [7]

Answer:

1,2,3, and 5 :]

Step-by-step explanation:

8 0

2 years ago

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Help me to do 10(b) answer

antiseptic1488 [7]

Answer:

Step-by-step explanation:

Big circle:

R = radius = diameter ÷2 = 42 ÷ 2 = 21 cm

Area of big circle= πR²

$=\dfrac{22}{7}*21*21=22*3*21\\\\\\= 1386 \ cm^{2}$

Small circle:

Diameter of small circle = radius of big circle = 21 cm

r = 21/2 = 10.5 cm

Area of small circle = πr²

$=\dfrac{22}{7}*10.5*10.5 = 22 * 1.5*10.5\\\\\\= 346 .5 \ cm^{2}$

Area of shaded region = area of big circle - area of small circle

= 1386 - 346.5

= 1039.5 cm²

3 0

2 years ago

On a zip-line course, you are harnessed to a cable that travels through the treetops. You start at platform A and zip to each o

Shalnov [3]

Answer:

We have to travel 26.93 units from platform B to C.

Step-by-step explanation:

Length of a segment having coordinates $(x_1,y_1)$ and $(x_2,y_2)$ is determined by the formula,

$d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

From the graph attached,

Coordinates of the points B and C are (-25, -20) and (-15, 5) respectively.

Distance between these points B and C Or length of BC will be,

BC = $\sqrt{(-25+15)^2+(-20-5)^2}$

= $\sqrt{100+625}$

= $\sqrt{725}$

= $5\sqrt{29}$

= 26.93 units

Therefore, we have to travel 26.93 units from platform B to C.

7 0

3 years ago

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