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3 years ago

What’s the value of x for a-d?

Mathematics

1 answer:

patriot [66]3 years ago

8 0

Answer:

a = 76 b = 22 c = 58 d = 68

Step-by-step explanation:

A. 180 - 133 = 47

so you have two angles found, which is 57 and 47. Add them together and subtract from 180. You get 76

B. 68 + 90 = 158

You subtract the 158 from 180 and get 22

C. This took some guess work, but when you multiply 58 by 2 you get 116. When subtracted from 180 you get 64. If you add 58 + 58 + 64, you get 180, so this made sense

D. There's an actual rule in trig that explains this, but I forgot it. If you look at the top angle, the other side of the line added to the 68 is a right angle. So you subtract 68 from 90 and get 12. Because there is already the right angle in the triangle, you just need the other two angles to equal 90, and because of the 68 that we found in the other triangle, this made sense.

Sorry, not the best at explanations. Hope that helped

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The figure shown is made up of a square and a triangle. Express the area of the figure in terms of y.

Doss [256]

Answer:

$y^2+2y$

Step-by-step explanation:

The area of a square can be found by $s^2$ and the area of a triangle can be found by $\frac{1}{2}b*h$ .

The area of the square with side length y is $y^2$ .

The area of the triangle with the base 4 and height y is $\frac{1}{2}4*y = 2y$

Adding the areas together gives $y^2+2y$

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4 years ago

Yuka buys 6 pounds of apples at $0.50 a pound. she also buys 6 pounds of bananas. altogether, the fruit costs $12.00. what is th

KiRa [710]

Im pretty sure the answer is around $1.50 per pound.

If you take the 6 pounds of apples and you multiply that by 0.50 you get $3.00 you subtract that from 12 and you still have $9.00 left. you take the $9.00 and divide that by 6 pounds you will get $1.50 per pound of banana.

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4 years ago

Write a word problem for 75-3m

Nezavi [6.7K]

John has $75. On each of 3 days he spent the same amount, m, buying a book. Write an expression that shows the amount of money has left after buying the three books.

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3 years ago

14. 10th

Dafna11 [192]

Answer:

Step-by-step explanation:

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3 years ago

A space plane skims the edge of space at 4000 miles per hour. Neglecting altitude, if the circumference of the planet is approx

posledela

Answer:

6 hour 20 minutes

Step-by-step explanation:

We are given that a space plane skims the edge of space at 400 miles per hour.

Circumference of the planet=25000 miles approximately

We have to find the time taken by the plane to travel around the planet.

Speed of plane=4000 miles per hour

Total distance traveled by the plane= approximately 25000 miles

Because plane travel in circular path therefore, distance

traveled by plane=Circumference of planet

Time = $\frac{distance}{speed}$

Substitute the values then we get

Time = $\frac{25000}{4000}=\frac{25}{4}=6\frac{1}{4} hours$

Time= $6 hour +\frac{1}{4}\times 60 minutes= 6\;hour\;20 minutes$

1 hour=60 minutes

Hence, the plane takes time to travel around the planet=6 hour 20 minutes

7 0

3 years ago