All categories

3 years ago

Subtracting: (-3n-6n4+6n3) -(3n3-9n4+n)

Mathematics

1 answer:

Katyanochek1 [597]3 years ago

8 0

Answer:

Step-by-step explanation:

-3n-24n+18n-9n+36n-n = +17

You might be interested in

How does substitution help you to solve systems of equations?

kipiarov [429]

In solving equations, each must have vales of x and y. X is any number and Y is the output of any number. If you substitute x for a number, you can solve the equation for y.

5 0

3 years ago

If, in a right triangle,

Reptile [31]

Elijahlouis, I will not sure how I am going on with my friends. we will need the following

6 0

3 years ago

Mary bought a handbag for 15.00naira. if she sold it for 18.00,what was her percentage gain?

melomori [17]

Answer:

total profit gained = 20%

Step-by-step explanation:

profit = SP - CP = 18 - 15 = 3 naira

total profit percentage =

( profit / CP ) × 100
3 / 15 × 100
20%

hence her total percentage gain was 20%

8 0

3 years ago

Robert is lying on the ground, looking at the top of a flagpole. The angle of elevation to the top of the flagpole is

NeTakaya

Answer:

Height of flagpole = 571 ft

Step-by-step explanation:

Given:

Angle of elevation to the top of the flagpole is 55° .

Distance from the eyes to the base of flagpole = 400 ft.

To find the height of the flagpole.

Solution:

We can draw the situation as a right triangle as shown below.

In triangle ABC.

$BC=400\ ft$

∠C= 55°

To find the length AB (height of the flagpole).

Applying trigonometric ratio :

$\tan\theta=\frac{Opposite\ side}{Adjacent\ side}$

$\tan C=\frac{AB}{BC}$

Plugging in values.

$\tan 55\°=\frac{AB}{400}$

Multiplying both sides by 400.

$400\tan 55\°=\frac{AB}{400}\times 400$

$571.26=AB$

∴ $AB\approx 571\ ft$

Height of flagpole = 571 ft

6 0

3 years ago

What is 9 3/10 - 5 7/10

Ksju [112]

Answer:

9.3-5.7=3.6.

I hope this answer help you

6 0

3 years ago

Read 2 more answers