All categories

3 years ago

PLEASE SOMEONE ANSWER MY QUESTION PLEASE!

Mathematics

1 answer:

Vilka [71]3 years ago

8 0

Answer:

Step-by-step explanation:

i used my calculator

You might be interested in

(1,5), (9,85), (2,10),(6,38),(4,3),(12,107),(7,64), (12,86) ,(7,47), (9,64), (4,27) The line is in the form y=mx+b.y=mx+b. What

alexandr1967 [171]

Answer:

y=10x-5

Step-by-step explanation:

should be the right answer since I used a calculator :p

8 0

3 years ago

Find the distance between the points (3,0) and (-1,-5)

nadya68 [22]

Answer:

6.4

Step-by-step explanation:

distance formula $\sqrt{(x2-x1)^2+(y2-y1)^2}$

$\sqrt{(-1-3)^2+(-5-0)^2}$

$\sqrt{(-4)^2+(-5)^2}$

$\sqrt{16+25}$

$\sqrt{41}$ ≈6.403.......

ik it doesnt make any sinse but hope this helps

7 0

3 years ago

Solve for the given variable 1. <img src="https://tex.z-dn.net/?f=f%3D%20%5Cfrac%7B9%7D%7B5%7Dc%2B32%20%20" id="TexFormu

olga2289 [7]

$f=\frac{9}{5}c+32\\
5f=9c+160\\
9c=5f-160\\
c=\frac{5f-160}{9}
$

8 0

3 years ago

A student incorrectly determined that the length of DE is 29 cm explaining that 12-7 = 5 and 36-7 = 29 explain what mistake the

FinnZ [79.3K]

Answer:

The length of the hypotenuse ≈ 39.7 cm

Explanation:

Since the given triangle is a right-angled triangle, this means that we can apply the Pythagorean theorem.

The equation for Pythagorean calculation is:

(hypotenuse)² = (first leg)² + (second leg)²

In the given, we have:

first leg = 30 cm

second leg = 26 cm

Substitute with the givens in the above equation to get the hypotenuse as follows:

(hypotenuse)² = (30)² + (26)²

(hypotenuse)² = 1576

This means that:

either hypotenuse = √1576 = 39.69 ≈ 39.7 cm ..........> accepted

or hypotenuse = -√1576 = -39.69 ......> rejected as length can't be negative

Hope this helps :)

6 0

2 years ago

Iron Man Training While training for an iron man competition, Tony bikes for 60 miles and runs for 15 miles. If his bikes speed

ivolga24 [154]

Answer:

Tony biked 1 hour 40 minutes and run 3 hours 20 minutes.

Step-by-step explanation:

How long did Tony speed on his bike?

Let s to be Tony's running speed, then 8s is Tony's biking speed

Let's recall that Time = Distance/Speed

Bike time + Running time = 5 hrs

Replacing with the real values, we have:

60/8s + 15/s = 5

8s as Lowest Common Denominator

60 + 8 * 15 = 5 * 8s

60 + 120 = 40s

-40s = -180

s = -180-40

s = 4.5 ⇒ 8s = 36

Tony run at 4.5 mph and biked at 36 mph

Now, we can calculate the time, this way:

Bike time = Bike distance/Bike speed

Replacing with the real values, we have:

Bike time = 60/36

Bike time = 5/3 (Dividing by 12)

5/3 hours * 60 = 100 minutes or 1 hour 40 minutes

Running time = 5 hours - 1 hour 40 minutes = 3 hours 20 minutes

Tony biked 1 hour 40 minutes and run 3 hours 20 minutes.

4 0

3 years ago