Ask question

Ask question

All categories

3 years ago

11

Please help!!! Will get brainliest!! The percentage of mothers who smoke cigarettes during pregnancy has declined approximately

linearly from 14.5% in 1997 to 11.7% in 2004. Predict the percentage in 2015. Round to one decimal place as needed.

1 answer:

andrezito [222]3 years ago

3 0

What i got was 16.8. I'm not sure if it is the right answer, but I tried

You might be interested in

During track practice,Jonathan ran 5kilometers.Rod ran 4,250 meters.Who ran further?Explain

svp [43]

Dvbjddcnlkhgvvnjg ghjrkjd

3 0

3 years ago

The captain of a boat knows that a lighthouse on the coast is 100 ft

Tatiana [17]

Answer:

Height of the light house $=7.5\ feet$

Step-by-step explanation:

Distance of light house from boat = 100 ft

Angle of elevation from boat to the top of light house = 2°

Height above water while taking measurement = 4 ft

The figure of the situation is shown below.

For Δ ABC

$\tan2\°=\frac {AB}{BC}$

$\tan2\°=\frac {AB}{100}$

$0.035=\frac {AB}{100}$

Multiplying both sides by 100.

$100\times 0.035=100\times\frac {AB}{100}$

$3.5=AB$

∴ $AB=3.5$

Height of the light house $=3.5+4=7.5\ feet$

3 0

3 years ago

The hypotenuse of a right triangle measures 6cm and one of its legs measures 3cm.Find the measure of the other leg. If necessary

belka [17]

Answer:

5.2

Step-by-step explanation:

a^2+b^2=c^2

Where c is the length of hypotenuse

and a, b are lengths of the legs.

Put in 6 for c,

Put in 3 for a and you get 9+b^2=36

Subtract 9 from both sides and get b^2= 27

Then find the square root of both sides to get b, so the answer is the square root of 27.

The cloest square root is 5, then apporixmate the tenths value and see if they work.

Answer: 5.2

8 0

1 year ago

Read 2 more answers

Find solution to the system of linear equations. 5x1 + x2 = 0 , 25x1 + 5x2 = 0

Zigmanuir [339]

Answer:

the system of equation has infinite solution

Step-by-step explanation:

$5x_1 + x_2 = 0$ , $25x_1 + 5x_2 = 0$

Solve the first equation for x_2

Subtract 5x1 on both sides

$5x_1 + x_2 = 0$

$x_2 =-5x_1$

Now substitute -5x1 on second equation

$25x_1 + 5x_2 = 0$

$25x_1 + 5(-5x_1)= 0$

$25x_1-25x_1= 0$

0=0

So the system of equation has infinite solution

5 0

3 years ago

Read 2 more answers

20. Q(-1, 4), R(-1, -9), S(11, -2), T(11, 6)

s2008m [1.1K]

Answer:

Parallel

Step-by-step explanation:

QR and ST both parallel to y axis.

3 0

3 years ago