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2 years ago

10

find the distance traveled by a train on a circular track road with radius of 78.8 m which will cause the train to change direct

ion by 21.3 degrees. Round to desiml place.

1 answer:

dangina [55]2 years ago

3 0

Check the picture below.

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Solve the equation. Then check your solution. – two-fifths + a = One-fifth a. Three-fifths c. StartFraction 3 Over 10 EndFractio

VLD [36.1K]

Answer:

a = Negative one-fifth

Step-by-step explanation:

The given equation is :

$\dfrac{2}{5}+a=\dfrac{1}{5}$

We need to find the value of a.

Subtract 2/5 from both sides.

$\dfrac{2}{5}+a-\dfrac{2}{5}=\dfrac{1}{5}-\dfrac{2}{5}\\\\a=\frac{1}{5}-\frac{2}{5}\\\\a=\dfrac{-1}{5}$

So, the correct answer is Negative one-fifth. Hence, the correct option is (b).

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2 years ago

Quadrilateral ABCD is inscribed. The measure of ∠A=67°. What is the measure of ∠C?

WARRIOR [948]

Answer:

angle C =113 degree

Step-by-step explanation:

angle A + angle C =180 degree

angle C = 180 degree - angle A

angle C = 180 degree - 67 degree

=113 degree

7 0

2 years ago

In a college library there are 4 times as many nonfiction books as fiction books. How many times the number of nonfiction books

balu736 [363]

Four? Isn't it stated in the question? Unless I am assuming wrong.

8 0

2 years ago

Read 2 more answers

What are the common factors of 20 and 24

Mandarinka [93]

Answer:

4

Step-by-step explanation:

4 x 5= 20

4x6 = 24

So 4 can go in 20 and 24 making it the common factor

7 0

2 years ago

the ratio of red marbles to blue marbles in a bag is 3:4. if there are 42 marbles in the bag, how many of the marbles are red?

AlexFokin [52]

Answer:

18

Step-by-step explanation:

Sum the parts of the ratio, 3 + 4 = 7

Divide the amount of marbles by 7 to find the value of one part of the ratio

42 ÷ 7 = 6 ← value of 1 part of the ratio, thus

red marbles = 3 × 6 = 18

8 0

2 years ago