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4 years ago

I don’t understand. Need help asap

Mathematics

2 answers:

BlackZzzverrR [31]4 years ago

7 0

Answer:

can you take a better picture please

it's a bit blurry

nasty-shy [4]4 years ago

4 0

Take a another picture

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A b and c lie on a straight line given that angle y = 125 and angle z = 313 work out x

inysia [295]

Answer:

∠x = 78

Step-by-step explanation:

∠y + ∠1 = 180

=> 125 + ∠1 = 180

=> ∠1 = 180 - 125

=> ∠1 = 55

∠z + ∠2 = 360

=> 313 + ∠2 = 360

=> ∠2 = 360-313

=> ∠2 = 47

∠1 + ∠2 + ∠x = 180

=> 55 + 47 + ∠x = 180

=> ∠x = 180 - 55 - 47

=> ∠x = 78

3 0

3 years ago

Read 2 more answers

A motorboat traveling with the current went 80 miles in 4 hours. Against the current, it took 5 hours to travel the same distanc

AysviL [449]

Let x be the speed of the motorboat and y be the speed of the current.

Then, for downstream, the speed is x + y.

Now, speed = distance/time.

Distance = 80 miles.

Time for downstream = 4 hours.

So, x + y = 80/4 = 20 (1)

Against the current, that is for upstream, the speed is x - y.

Time for upstream = 5 hours.

x - y = 80/5 = 16 (2)

Adding (1) and (2), we get,

2x = 36

x = 18

Hence, rate of the motorboat in calm water = 18 miles/hour.

3 0

3 years ago

Find the volume of the cylinder. Round your answer to the nearest tenth.<br> 8 m<br> 10 m

aivan3 [116]

Answer:

V = 2010.6193m^3

Step-by-step explanation:

This is right assuming 8m is the radius and 10m is the height

3 0

3 years ago

If the number of bacteria in a colony doubles every 210 minutes and the population is currently 8,000 bacteria, what will the po

marin [14]

Answer:

in 630 minutes, the population of the bacteria will 64,000

Step-by-step explanation:

current population of the bacteria = 8,000

and this population doubles every 210 minutes

0 (minute) ------------------------ 8,000 bacteria

210 + 0 (210 minutes) -------------------- 2 x 8,000 = 16,000 bacteria

210 + 210 ( 420 minutes) -------------------- 2 x 16,000 = 32,000 bacteria

420 + 210 (630 minutes) -------------------- 2 x 32,000 = 64,000 bacteria

Therefore, in 630 minutes, the population of the bacteria will 64,000

3 0

4 years ago

I need the answer ASAP please.

kondor19780726 [428]

Answer:

Step-by-step explanation:

If 3/4 of the lot was full and the lot holds 1000 vehicles, then there are 3/4(1000) in the lot. 3/4(1000) = 750. That means there are 750 vehicles in the lot. If 200 cars are in the lot, then 750 - 200 = 550 trucks.

5 0

4 years ago