This one as well, does anyone know the answer?

UseU={1,2,3,4,5,6,7,8,9,10},A={1,3,4},B={4,7,8,9},and C={2,6,10}to find the given set AUB

salantis [7]

Answer:

A ∪ B = { 1,3,4,7,8,9}

Step-by-step explanation:

U = {1,2,3,4,5,6,7,8,9,10}

A={1,3,4} B={4,7,8,9} and C={2,6,10}

UNION OF SETS:

Union of two sets is defined as the set which has all the elements from both the sets.

Also, REPETITION OF THE ELEMENTS in NOT allowed in union of sets.

Now, here:

A={1,3,4} B={4,7,8,9}

So, A ∪ B = { 1,3,4,7,8,9} ( element 4 is written only ONCE here)

3 0

3 years ago

A stretch of highway that is 12 1/4 miles long has a speed limit signs every 7/8 of a mile. How many speed limit signs are on th

Maksim231197 [3]

Well 12 times four is 48 so you add 48 and 1 and the first fraction (12 1/4) becomes 49/4 then you multiply this by two so it becomes 98/8 now you can take 98 dived by 7 to make 14 speed limit signs on the highway

4 0

3 years ago

Read 2 more answers

2, 4, 3, 6, 5, 10, 9, 18 anyone know the pattern and next 3 numbers????

ANEK [815]

17, 34, 33

i think the pattern is x2 then -1 :]

4 0

3 years ago

Read 2 more answers

Can someone lemme borrow their heart i been feeling lonely and i just want to be loved

polet [3.4K]

Yes

explanation:

same

8 0

3 years ago

John wants to measure the width of a stream using the methods he has learned in geometry. He puts a stake in the ground opposite

otez555 [7]

John's method to determine the width of the stream uses the knowledge

that the tangent of 60° is approximately 1.7.

The proper sequence John would use to find the width of the stream are;

Step 1; John drives a stake opposite the tree to establish a line between two points

Step 2; John uses a compass to walk away from the stakes at a right angle

Step 3; On the path John walks until he finds a line of sight to the tree that equals 60 degrees

Step 4; John drives a second stake in the ground

Step 5; John measures the the distance between the two stakes

Step 6; John multiplies the distance between the two stakes by 1.7 to find the distance.

Reasons:

The steps that can be used to measure the width of the stream are;

Step 1: Drive a stake opposite the tree on the other side of the stream.

Step 2: With the aid of a compass, walk at right angles to the line formed by the stake and the tree.

Step 3; Keep walking along the previous path till a point is reached where the angle formed between the line of site to the tree and the walk path is 60°.

Step 4; At the point where the line of sight to the tree is 60°, a second stake is driven in the ground.

Step 5; Measure the distance between the stakes that are placed in the ground.

Step 6; Given that by trigonometry, the ratio of the width of the stream to the distance between the two stakes is tan(60°) ≈ 1.7, multiply the distance between the two stakes by 1.7 to find the width of the stream.

$\displaystyle tan(60^{\circ}) = \mathbf{\frac{Width \ of \ stream}{Distance \ between \ stakes}}$

The possible question options are;

John measures the the distance between the two stakes

John uses a compass to walk away from the stakes at a right angle

John multiplies the distance between the two stakes by 1.7 to find the distance

John drives a second stake in the ground

On the path John walks until he finds a line of sight to the tree that equals 60 degrees

John drives a stake opposite the tree to establish a line between two points.

Learn more about trigonometric ratios here:

brainly.com/question/13276558

3 0

3 years ago