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3 years ago

Look at this triangle work out the length AB

Mathematics

2 answers:

Y_Kistochka [10]3 years ago

4 0

This has to be at least 20 characters long so the answer should most likely be 60

baherus [9]3 years ago

4 0

The answer is 23.4 just use the pythagorean theorem

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According to your budget forecast you will have expenses of $1,200 next month and income of $800. How much do you have available

patriot [66]

Answer:

$400

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

Pls tell me what the correct answer would be ❤️

mrs_skeptik [129]

Answer:

Step-by-step explanation:

The error is in the second step. For some unknown reason, the x was dropped and the 3 was subtracted from the 7.

It should be

9x +3x + 12 = 7

12x + 12 = 7 Subtract 12 from both sides.

12x + 12 - 12 = 7 - 12 Combine

12x = -5 Divide by 12

12x/12 = -5/12

x = -5/12 or x = - 0.4167

4 0

3 years ago

A passenger train left Chicago and traveled toward Elkhart at an average speed of 29 mph. A freight train left 2.4 hours later a

ElenaW [278]

29*2.4-36.5= 33.1 hrs before the freight train cought up.

5 0

3 years ago

2.2,<br> Write the ratio 1 2/3: 2 2/3 in the simplest form.<br> ,

gulaghasi [49]

Answer:

1:2

Step-by-step explanation:

this would be the answer as 1 2/3: 2 2/3 are the same as 1:2 if you cancel out the 2/3 from both sides.

6 0

3 years ago

Read 2 more answers

A ball is thrown from an initial height of 3 meters with an initial upward velocity of 30 m/s. The ball's height h (in meters) a

yanalaym [24]

$h=3+30t-5t^2\implies 13=3+30t-5t^2\implies 0=-10+30t-5t^2 \\\\\\ 5t^2-30t+10=0\implies 5(t^2-6t+2)=0\implies t^2-6t+2=0$

now, it doesn't give us nice looking integers, so let's plug that into the quadratic formula.

$~~~~~~~~~~~~\textit{quadratic formula} \\\\ \stackrel{\stackrel{a}{\downarrow }}{1}t^2\stackrel{\stackrel{b}{\downarrow }}{-6}t\stackrel{\stackrel{c}{\downarrow }}{+2}=0 ~\hspace{10em} t= \cfrac{ - b \pm \sqrt { b^2 -4 a c}}{2 a} \\\\\\ t= \cfrac{ - (-6) \pm \sqrt { (-6)^2 -4(1)(2)}}{2(1)}\implies t=\cfrac{6\pm\sqrt{36-8}}{2}$

$t=\cfrac{6\pm\sqrt{28}}{2}\implies t=\cfrac{6\pm\sqrt{2^2\cdot 7}}{2}\implies t=\cfrac{6\pm 2\sqrt{7}}{2}\implies t=\cfrac{2(3\pm 1\sqrt{7})}{2} \\\\\\ t=3\pm \sqrt{7}\implies t= \begin{cases} 3+\sqrt{7}\\ 3-\sqrt{7} \end{cases}\implies t\approx \begin{cases} 5.65\\ 0.35 \end{cases}$

8 0

3 years ago

Look at this triangle work out the length AB​

Look at this triangle work out the length AB