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3 years ago

I need help rn pls !!!!

Mathematics

2 answers:

Verdich [7]3 years ago

6 0

Answer:

ano ba need mo? tulongan kita

lilavasa [31]3 years ago

6 0

Answer:

A. 3.75x + 5y

B. $1,168.75

Step-by-step explanation:

x: Gatorade

y: pizza

3.75(113)+5(149) = 423.75+745

= $ 1,168.75

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Express the following as standard numbers:

Ksenya-84 [330]

Answer:

A. 56,000

B. 784,000,000

C. 620

D. 0.00000432

Step-by-step explanation:

${ \tt{}}$

5 0

3 years ago

Is 4m equal to 400dm

erica [24]

It is not.

400 decimeters = 4,000 cm

4,000 cm = 40 m

6 0

3 years ago

What is the answer to 10 ÷ 10 in decimal form

Alexus [3.1K]

10/10 = 1

There is no decimal form unless you do 1.0, 1.00, 1.000, and so on.

6 0

3 years ago

Eight people attend the theater "together and sit in a row with exactly eight seats. Suppose the eight people consist of three m

Nata [24]

Answer:

They can be seated in 120 differents ways.

Step-by-step explanation:

Taking into account that there are 3 couples and every couple has an specific way to sit, for simplify the exercise, every couple is going to act like 1 option and it's going to occupy 1 Place. If this happens we just need to organize 5 options (3 couples and 2 singles) in 5 Places (3 for a couple and 2 for the singles)

It means that now there are just 5 Places in the row and 5 options to organized. So the number of ways can be calculated using a rule of multiplication as:

5 * 4 * 3 * 2 * 1 = 120

1st place 2nd Place 3rd place 4th Place 5th Place

Because we have 5 options for the 1st Place, the three couples and the 2 singles. Then, 4 options for the second Place, 3 options for the third place, 2 for the fourth place and 1 option for the 5th place.

Finally, they can be seated in 120 differents ways.

8 0

3 years ago

The equation of a circle is (x + 6)^2 + (y - 4)^2 = 16. The point (-6, 8) is on the circle.

pantera1 [17]

Answer:

y = 8 is the equation of tangent.

Step-by-step explanation:

The equation of the tangent to the circle at (-6,8) is of the form:

y = mx + c

where m is the slope of the tangent and c is the y-intercept.

The point (-6,8) lies on the circle and the tangent line as well.

Hence (-6,8) satisfies the line equation:

8 = m(-6) + c ⇒ c-6m = 8 -------------1

We know that slope of two perpendicular lines are related as:

$m_{1}\times m_{2}=-1$

At any point on the circle, the normal line at a point is always perpendicular to the tangent line at that point.

Hence :

$m_{normal} \times m_{tangent}=-1$

We can find the slope of the normal at point (-6,8) as it passes through the centre of the circle (-6,4) by using the two-points formula for slope.

$m=\frac{y_2-y_1}{x_2-x_1}$

$=\frac{8-4}{-6+6}$

= ∞

Slope of the normal is infinity and hence slope of tangent is -1/∞ = 0

Hence m=0

Putting m=0 in equation 1 we get:

c = 8

The equation of tangent line at (-6,8) is:

y = 8

6 0

3 years ago