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3 years ago

Choose which triangle goes into the right category.

Mathematics

1 answer:

Alex787 [66]3 years ago

8 0

Answer:

obtuse cant be a right angle

Step-by-step explanation:

in order to be obtuse you have to be more than 90 dagrees

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Solve for side g of the right triangle below. Write your answer as

Sunny_sXe [5.5K]

Answer: sqrt (105)

Step-by-step explanation:

g^2 + 16^2 = 19^2

=> g^2 = 19^2 - 16^2

=> g = sqrt(19^2 - 16^2) = sqrt(361 - 256) = sqrt (105)

4 0

3 years ago

Drake is saving money to buy a new computer for $1,200. He already has $450 and plans $30 a week. The function y = 30x + 450 rep

yarga [219]

Answer:

25 weeks

Step-by-step explanation:

step 1. find y which is what you are trying to find which is how long it will take for drake to make $1200

step 2.- subtract 450 from each side

1200=30x+450

-450 -450

750=30x

step 3.- divide by 30 on both sides

750=30x

30 30

x=25

i dont know if this helps but i am still learning how to explain on here. :)

3 0

3 years ago

Read 2 more answers

⅔p + 4 < 20 can someone answer and show work plz

Doss [256]

Answer: p < 24

Step-by-step explanation: I'm assuming you mean solving for P

1. We want to get p alone and the first step would be to subtract 4 from both side which will give us: ⅔p < 16

2. Next step would to be multiplying by 3 from both sides and doing this will cancel out the 3 in the denominator giving you: 2p < 48

3. Now we have to divide both sides by 2 and we are done which gives us:

p < 24

Don't forget if we were to be dividing by a negative the sign would flip

(for example: -2p < 6 = p > 3) this isn't used in this problem but just a reminder if you see this in future problems

7 0

3 years ago

If an arrow is shot upward on Mars with a speed of 56 m/s, its height in meters t seconds later is given by y = 56t − 1.86t2.

Zina [86]

Answer: (a) (i)50.42 m/s (ii) 51.35 m/s (iii) 52.094 m/s (iv) 52.2614 m/s (v) 52.27814 m/s

(b) 54.14 m/s

Step-by-step explanation:

The average speed over the given time interval [a,b]: = $\frac{y(b)-y(a)}{b-a}$

Given: If an arrow is shot upward on Mars with a speed of 56 m/s, its height in meters t seconds later is given by $y = 56t − 1.86t^2.$

(a)

(i) average speed = $\frac{y(2)-y(1)}{2-1}$

$=\frac{56(2)-1.86(2)^2-(56(1)-1.86(1)^2)}{1}$

$=50.42$ m/s

(ii) average speed = $\frac{y(1.5)-y(1)}{1.5-1}$

$=\frac{56(1.5)-1.86(1.5)^2-(56(1)-1.86(1)^2)}{0.5}$

$=51.35$ m/s

(iii) average speed = $\frac{y(1.1)-y(1)}{1.1-1}$

$=\frac{56(1.1)-1.86(1.1)^2-(56(1)-1.86(1)^2)}{0.1}$

$=52.094$ m/s

(iv) average speed = $\frac{y(1.01)-y(1)}{1.01-01}$

$=\frac{56(1.01)-1.86(1.01)^2-(56(1)-1.86(1)^2)}{0.01}$

$=52.2614
$ m/s

(v) average speed = $\frac{y(1.001)-y(1)}{1.001-01}$

$=\frac{56(1.001)-1.86(1.001)^2-(56(1)-1.86(1)^2)}{0.001}$

$=52.27814
$ m/s

(b) $y(1)=56(1)-1.86(1)^2$

$=56-1.86$

$= 54.14$ m/s

3 0

3 years ago

Last year there were 120 students in choir. This year, 30% more students took choir. How many students are taking choir this yea

soldi70 [24.7K]

Answer:

156 students

Step-by-step explanation:

To find how many students are in choir this year, multiply 120 by 1.3

120(1.3)

= 156

So, this year, 156 students are taking choir

7 0

3 years ago

Read 2 more answers