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3 years ago

Please help me hurry!! 8

Mathematics

2 answers:

tiny-mole [99]3 years ago

7 0

Answer:

r = 7

Step-by-step explanation:

$a =5\\\\a_{3}=245\\\\a_{n}=ar^{n-1}\\\\a_{3}= 5*r^{2} \\\\5*r^{2} = 245\\\\r^{2}=\frac{245}{5}\\\\r^{2}=49 = 7^{2}\\\\r = 7$

hichkok12 [17]3 years ago

5 0

R=7

Explanation I just calculate it

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A construction crew has just finished building a road. The crew worked for 8 days. If they built 2 1/6 kilometers of road each d

Luba_88 [7]

Answer:

13km

Step-by-step explanation:

Given data

Time= 8 days

Speed= 2 1/6 kilometers per day = 13/6 kilometers per day

Distance= ??

We know that

Speed= distance/time

therefore, Distance= speed*time

substitute

Distance= 13/6*8

Distance= 104/8

Distance= 13 km

Hence the crew did 13km

4 0

2 years ago

Can some one answer this question please show work

Lera25 [3.4K]

When you reflect across the Y axis, the Y value remains the same and the x value becomes opposite.

Answer: (5,-3)

4 0

2 years ago

How much longer is the distance from the library to the park to the train station than the distance from the library straight to

Slav-nsk [51]

Answer:

2.14

Step-by-step explanation:

2.14+3.82= 5.96

5.96-3.82= 2.14

So, your answer would be 2.14

7 0

2 years ago

4-2x=11 how do I solve

Bingel [31]

Hey there!☺

$Answer:\boxed{x=\frac{-7}{2}}$

$Explanation:$

$4-2x=11$

In our first step, we will simplify both sides of the equation:

$4+-2x=11\\-2x+4=11$

Now subtract 4 from both sides:

$-2x+4-4=11-4\\-2x=7$

In our last step, we will divide both sides by -2:

$\frac{-2x}{2}=\frac{7}{-2}\\ x=\frac{-7}{2}$

x=-7/2 is your answer.

Hope this helps!☺

3 0

3 years ago

Can somebody help me with this. Will mark brainliest!

alexandr402 [8]

Answer:

The length of FG is 2.

Step-by-step explanation: B and F are the same point, just reflected, so BC=FG.

7 0

3 years ago