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3 years ago

WILL GIVE BRAINLIEST

2 answers:

8 0

Something wrong w my ans be4? if u double-post by mistake, i can report it so u can get ur pts back! :)

speed boat departed 1.75 hrs after steam boat
1.8 hrs after speed boat departure, steam boat has sailed for a total: 1.8+1.75 = 3.55 hrs
steam boat's speed is 36.8 km/hr, so it has traveled: 3.55*36.8 = 130.64 km
speed boat is 86.9 km behind steam boat
so it is 130.64-86.9 = 43.74 km from port
speed boat's speed = 43.74/1.8 = 24.3 km/hr

jolli1 [7]3 years ago

3 0

I'm pretty sure it 48.3
i did the math if its wrong than I'm so so so so so sorry i really did try

You might be interested in

- (x + 2)2 + (y - 9)2 = 1

telo118 [61]

Answer:

x+y=-5.75

Step-by-step explanation:

Ⓗⓘ ⓣⓗⓔⓡⓔ

Well, you would simply need to use the distributive property!

-(2)x-(2)2+(2)y-(2)9=1

-2x-4+2y-18=1

Then you need to add/subtract so the similar numbers are together.

-2x+2y-22=1

-2x+2y=23

x+2y=-11.5

x+y=-5.75

(っ◔◡◔)っ ♥ Hope this helped! Have a great day! :) ♥

Please, please give brainliest, it would be greatly appreciated, I only a few more before I advance, thanks!

8 0

3 years ago

Help ASAP ! Show work

DanielleElmas [232]

Answer:

Step-by-step explanation:

Using formula $a^{2} + b^{2} =c^{2}$

a= 650

b= 800

and c is the unkown

8 0

3 years ago

What multiplies to 16 and adds to negative 12

Romashka-Z-Leto [24]

Factor 16 and see the - factor pairs and add them, see which add to -12
-1-16=-17 nope
-2-8=-10 nope
-4-4=-8
hmm

we will solve with math
xy=16
x+y=-12
minus x both sides
y=-12-x
sub for y in other equation
x(-12-x)=16
-12x-x^2=16
add 12x+x^2 both sides
0=x^2+12x+16
use quadratic formula
if you have
ax^2+bx+c=0
x= $\frac{-b+/- \sqrt{b^{2}-4ac} }{2a}$

0=x^2+12x+16
a=1
b=12
c=16

x= $\frac{-12+/- \sqrt{12^{2}-4(1)(16) }}{2(1)}$
x= $\frac{-12+/- \sqrt{144-64 }}{2}$
x= $\frac{-12+/- \sqrt{80}}{2}$
x= $\frac{-12+/- 4\sqrt{5}}{2}$
x= $\frac{-6+/- 2\sqrt{5}$
x= $\frac{-6+ 2\sqrt{5}$ or $\frac{-6- 2\sqrt{5}$

aprox
x=-1.52786 or -10.4721

those are the numbers

the numbes are -1.52786 or -10.4721

6 0

3 years ago

Read 2 more answers

Janinne, Monique, and Kathy were baking cookies for a bake sale. Janinne made 68%, Monique made 3/25, and Kathy made 0.2 of the

liubo4ka [24]

Answer:

Janninne made 68% then 3/25 turned into percentage 12% then 0.2 equals 20%. So you order it by 68% (Janinee), 20% (Kathy), AND 12% (Monique)

6 0

3 years ago

Consider a t distribution with 24 degrees of freedom. Compute P(-1.27˂t˂1.27) . Round your answer to at least three decimal plac

DENIUS [597]

Answer:

Step-by-step explanation:

Use the calculator provided to solve the following problems.
Consider a t distribution with 24 degrees of freedom. Compute P(-1.27˂t˂1.27) . Round your answer to at least three decimal places.
Consider a t distribution with 5 degrees of freedom. Find the value of c such that P(t≤c)=0.05 . Round your answer to at least three decimal places.

3 0

3 years ago