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3 years ago

PLEASE HELO OK 1,3,4 ITS DUE TOMORROW

Mathematics

2 answers:

Valentin [98]3 years ago

5 0

For #3. Hope this helps! Message me with any questions!

sukhopar [10]3 years ago

3 0

#1. The number line goes by intervals of 0.2, so if A is equal to 7.28, then it’ll go in between the first line after 7 and the second line after 7. This is similar with B and C. B will go on the second line after 9, and C will go in between the second and third line after 10.

#3. You started out well. You combine your like terms on the sides of the equation to get 8x - 2 = 4x + 6. Then, you’ll subtract 4x to get 4x - 2 = 6. Add 2 to get 4x =8, then divide by 4 to get x = 2. On the other one, combine your terms to get -6 + 5y = 29. Then, add 6 so you have 5y = 35. Divide by 5 to get y = 7.

#4. When you classify a number, you need to classify it as whatever it is in your disgramdiagram, and the larger ones as well. For example, -2 is an integer, so it is also a rational number. 3/4 is a rational number. The square root of 2 over 2 is an irrational number. 292 is a counting, whole, integer, and rational number. -19/3 is a rational number. 6.9696... is an irrational number. (It has the three dots [...] so it’ll go on forever with no pattern.)

I hope this helps! Please tell me if you need any clarification. :)

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Please show work step by step and graph the equation

SVETLANKA909090 [29]

Answer:

we cant really tell you how to graph it You should ask your teacher for help!

Step-by-step explanation:

3 0

3 years ago

A person standing on the roof of a building throws a ball directly upward. The ball misses the rooftop on its way down andeventu

maria [59]

Answer:

a) V_avg = 32 ft/s

b) V_avg = -30 ft/s

c) See explanation

Step-by-step explanation:

Given:

- The displacement function is given:

S(t) = -16t^2 + 64t + 80

Find:

a. Find the balls average velocity between the time it was thrown and 2 seconds later

b. Find the ball’s average velocity between 2 and 4 seconds after it was thrown

c. What do the signs in your answers to parts (a) and (b) mean in terms of the direction of the ball’s motion?

Solution:

- The average velocity of an object is the displacement over time, and it is expressed as follows:

V_avg = ( S_2 - S_1 ) / dt

- Evaluate S(2), S(0), and S(4):

S(2) = -16*2^2 +64*2 +80

S(2) = 144 ft

S(0) = -16*0^2 +64*0 +80

S(0) = 80 ft

S(4) = -16*4^2 +64*4 +80

S(4) = 80 ft

- For part a. Compute V_avg:

V_avg = ( S(2) - S(0) ) / 2

V_avg = (144 - 80) / 2

V_avg = 32 ft/s

- For part b. Compute V_avg:

V_avg = ( S(4) - S(2) ) / 2

V_avg = (80 - 140) / 2

V_avg = -30 ft/s

- We see that the signs of the Velocity have changed. The coordinate axis up against gravity was chosen to positive. While a negative access is in favor of the gravity. Hence, from the signs we can see that the ball is going down towards ground in motion from t = 2 s to t = 4 s.

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4 years ago

<img src="https://tex.z-dn.net/?f=%20%5Cunderline%7B%20%5Cunderline%7B%20%5Ctext%7BQuestion%7D%7D%7D%20%3A%20" id="TexFormula1"

Lubov Fominskaja [6]

Answer:

See Below.

Step-by-step explanation:

We are given the isosceles triangle ΔABC. By the definition of isosceles triangles, this means that ∠ABC = ∠ACB.

Segments BO and CO bisects ∠ABC and ∠ACB.

And we want to prove that ΔBOC is an isosceles triangle.

Since BO and CO are the angle bisectors of ∠ABC and ∠ACB, respectively, it means that ∠ABO = ∠CBO and ∠ACO = ∠BCO.

And since ∠ABC = ∠ACB, this implies that:

∠ABO = ∠CBO =∠ACO = ∠BCO.

This is shown in the figure as each angle having only one tick mark, meaning that they are congruent.

So, we know that:

$\angle ABC=\angle ACB$

∠ABC is the sum of the angles ∠ABO and ∠CBO. Likewise, ∠ACB is the sum of the angles ∠ACO and ∠BCO. Hence:

$\angle ABO+\angle CBO =\angle ACO+\angle BCO$

Since ∠ABO =∠ACO, by substitution:

$\angle ABO+\angle CBO =\angle ABO+\angle BCO$

Subtracting ∠ABO from both sides produces:

$\angle CBO=\angle BCO$

So, we've proven that the two angles are congruent, thereby proving that ΔBOC is indeed an isosceles triangle.

7 0

3 years ago

Read 2 more answers

The taxi fare in Las Vegas is $3.50 for the first mile, and $2 for each additional mile after the first. If you have $29.50, how

forsale [732]

Answeryou'll be able to ride 14 miles.

Step-by-step explanation:

Your price is 29.50. if the first mile is 3.50 you'll subtract that from the 29.50 you originally had. Now you're left with 26.00. If you divide that by the two dollars you pay for every next mile you'll have 13 miles. Now add that first mile and you have 14. Hopefully this made sense!

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3 years ago

Describe the slips of perpendicular lines

Stolb23 [73]

Answer:

They have opposite reciprocals

Step-by-step explanation:

example= -4/3 the opposite reciprocal would be 3/4

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3 years ago