1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Kay [80]
2 years ago
8

A) Estimate 0.42 x 0.064 by rounding both numbers to one significant figure.

Mathematics
1 answer:
-BARSIC- [3]2 years ago
5 0

Answer:

A) 0.030

B) 0.026

Step-by-step explanation:

I hope this HELP! :)

You might be interested in
Can you please Solve for x?
GaryK [48]

tan( 31 ) = x / 39

0.600860619 = x / 39

x = 0.600860619 × 39

x = 23.433564141

______________________________

Round to the nearest tenth :

x = 23.4

Round to the nearest hundredth :

x = 23.43

3 0
2 years ago
Help me please 10 points I’m only in 8th
AnnyKZ [126]

The answer is

5.09902

5 0
3 years ago
Read 2 more answers
Y + 4/9 = 2/3 Solve the equation..
emmainna [20.7K]
Y + 4/9 = 2/3

Let's convert 2/3 into 6/9 so it will be easier to subtract.

Y + 4/9 = 6/9
Subtract 4/9 on both sides.

Y = 2/9 Hope this helps!
4 0
2 years ago
It takes a train 60 seconds to completely drive through a bridge of 1260 m, and 90 seconds to completely drive through a tunnel
Olegator [25]

The length of train is 120 meters

The speed of train is 25 meter per second

<u><em>Solution:</em></u>

The speed is given by formula:

speed = \frac{distance}{time}

Given that,

It takes a train 60 seconds to completely drive through a bridge of 1260 m

And 90 seconds to completely drive through a tunnel of 2010 m

Let the length of the train be "x"

<em><u>The total distance travelled by the train across the bridge is given by:</u></em>

total distance = x + 1260 + x = 2x + 1260

[ here we use x + x to represent that train completely drives through bridge ]

The time taken is given as 60 seconds

<em><u>Therefore, the speed is given as:</u></em>

speed = \frac{2x+ 1260}{60}

<em><u>The total distance travelled by the train through the tunnel is given by:</u></em>

total distance = x + 2010 + x = 2x + 2010

The time taken is given as 90 seconds

<em><u>Therefore, the speed is given as:</u></em>

speed = \frac{2x+ 2010}{90}

The speed of the train was the same in both cases.

Equate both speeds

\frac{2x+ 1260}{60} = \frac{2x+ 2010}{90}

\frac{x+630}{30} = \frac{x+1005}{45}

45(x+630) = 30(x+1005)\\\\45x + 28350 = 30x + 30150\\\\45x - 30x = 30150 - 28350\\\\15x = 1800\\\\x = 120

Thus length of train is 120 meters

<em><u>Find the speed of train:</u></em>

speed = \frac{2x+ 1260}{60}\\\\speed = \frac{2(120) + 1260)}{60}\\\\speed = 25

Thus speed of train is 25 meter per second

5 0
3 years ago
A French class has a total of 31 students. The number of males is 7 more than the number of females. How many males and how many
Inessa05 [86]

Answer:

12

Step-by-step explanation:

5 0
2 years ago
Other questions:
  • The graph below represents which system of inequalities?
    10·1 answer
  • Triangle JKL was translated 12 units vertically and then reflected over the y-axis to create triangle J'K'L' What is the value o
    13·1 answer
  • Solve for X, will mark as brainliest!<br><br> 6(1+x)+x=-14
    6·2 answers
  • X/16 = 45/40 <br> What is x
    8·2 answers
  • Simone placed 15 beads on a string as shown. The beads are arranged in a color pattern with the colors blue, red, and green. The
    15·1 answer
  • Plz helppp I’m dying
    9·1 answer
  • Solve the equation a/a^2-16+2/a-4=2/a+4
    7·1 answer
  • Please help…
    14·1 answer
  • Work out the size of angle x
    6·1 answer
  • (2^3 × 2)^2 pls explain how you got it....the answer is 2^8 but I want to know how we get that.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!