find the perimeter of a triangle whose each sides is 10cm.​

Answer:

Increasing: [tex](\infty, 0)\cup (1,\infty)[/tex]

Decreasing: [tex](0, 1)[/tex]

Concave Up: [tex](0, \infty)[/tex]

Concave Down: [tex](-\infty, 1)[/tex]

Step-by-step explanation:

Increasing intervals are intervals where the function is approaching positive infinity (upwards). Decreasing intervals are intervals where the function is approaching negative infinity (downwards). Concavity refers to intervals that resemble a parabola either opening upwards (Concave Up) or opening downwards (Concave Down).

Answer:

[tex]2\pi \times r[/tex]

1. 2×3.14×80

=502.4 m

4. 90 pound on Earth weighs 34 pounds on Mars.

If it weighs 135 pounds on earth, it will weigh x pounds on Mars

=90×=135×34

=90x=4590

=x=4590÷90

x=51 pounds

So therefore it weighs 51 pounds on Mars.

Step-by-step explanation:

in question 4 you have to cross multiply

Answer:

acute?

Step-by-step explanation: wheres the shape??

Answer: no picture?

Step-by-step explanation:

Answer: x = - 6

y = 7

Step-by-step explanation:

Let 2x -5y = -47 be eq. 1

And 6x -5y = -71 be eq. 2

By substrate of 1 - 2:

2x-5y-6x+5y = -47+71

so -4x=24 and x= -6

Substitute x in any eq.

2(-6) - 5y = -47

-5y = -47 +12

-5y = -35 so y= 7

Answer:

Angle 1 = 105

Angle 2 = 75

Step-by-step explanation:

Angle 2 and angle 75 are corresponding angles.

Corresponding angles are equal.

So,

Angle 2 = 75

Angle 1 and angle 2 are linear pair angles.

Angle 1 + Angle 2 = 180

Angle 1 + 75 = 180

Angle 1 = 180 - 75

Angle 1 = 105

Answer:

343.6 meters cubed

Step-by-step explanation:

28+96+96+96+27.6=343.6

Answer:

2nd

Step-by-step explanation:

bec 1\8  = 0.125 so it must be close more to 0

and the 1.33 is bigger than 1.25

Answer:

Step-by-step explanation:

supplementary angles: either of two angles whose sum is 180°.

adjacent angles: Adjacent angles are two angles that have a common vertex and a common side but do not overlap.

Answer:

the two points be

(0,0) and (1,-3)

slope [m]=[-3-0]/[1-0]=-3

constant rate is-3.

Answer:

y= - 4

Step-by-step explanation:

Answer:

Step-by-step explanation:

The integers are: x, x+2

Them, x + x+ 2 = 36

2x +2 = 36

Answer:

If there's no other variables involved.

x=1

Answer:

x = 1

Step-by-step explanation:

x = 4 - 3

4 - 3 = 1

Hence, x = 1

Answer:

2 and -5

4c and 7c

Step-by-step explanation:

2 and -5 have no coefficient

4 and 7 have the same coefficient which in this case is c.

therefore the two pairs are like terms.

Answer:i think that it is B

u^2 - 10u + 51=0

Step-by-step explanation:

Answer:

31 feets

Step-by-step explanation:

Given that :

Telephone shadow Ts = 12 feets

Man's height, Mh= 6 feets

Man's shadow, Ms = 2 feets 4 inches

Height of telephone, Th =?

Recall :

1 foot = 12 inches

x foot = 4 inches

12x = 4

x = 4/12 = 1/3 inches

Hence, man's shadow = 2 1/3 feets =

Using cross multiplication :

Mh / Ms = Th / Ts

6 / 7/3 = Th / 12

6 / 2.33333 = Th / 12

12 * 6 = 2.33333 * Th

72 = 2.33333 Th

Th = 72 / 2.333333

Th = 30.85

Height of telephone pole = 31 feets

Answer:

Asymptotes. The y -axis is a vertical asymptote of the graph. This means that the curve gets closer and closer to the y -axis but does not cross it. Let us consider what happens as the value of x approaches zero from the right for the equation whose graph appears above.

Step-by-step explanation:

Answer:

20.5

Step-by-step explanation:

By the Triangle Midsegment Theorem, the midsegment connecting the midpoints of two sides of a triangle is parallel to the third side of the triangle, and the length of this midsegment is half the length of the third side. Therefore, (1/2)FH ≡ IH, (1/2)HG ≡ HJ. Knowing that IJ = 8 gives you the presidence to solve for the perimeter.

Answer:

true

Step-by-step explanation:

Answer:

9b+5cb

Step-by-step explanation:

Answer:

[tex]s(t) = frac{t^3}{3} + \frac{5t^2}{2} - 3t + 12[/tex]

Step-by-step explanation:

Relation between acceleration, velocity and position:

The velocity function is the integral of the acceleration function.

The position function is the integral of the velocity function.

Acceleration:

As given by the problem, the acceleration function is [tex]a(t) = 2t + 5[/tex]

Velocity:

[tex]v(t) = \int a(t) dt = \int (2t+5) dt = \frac{2t^2}{2} + 5t + K = t^2 + 5t + K[/tex]

In which K is the constant of integration, which is the initial velocity. So K = -3 and:

[tex]v(t) = t^2 + 5t - 3[/tex]

Position:

[tex]s(t) = \int v(t) dt = \int (t^2 + 5t - 3) = \frac{t^3}{3} + \frac{5t^2}{2} - 3t + K[/tex]

In which K, the constant of integration, is the initial position. Since it is 12:

[tex]s(t) = frac{t^3}{3} + \frac{5t^2}{2} - 3t + 12[/tex]

Answer:

20%

Step-by-step explanation:

Probability is always expressed as a part of a whole, thereby in fractions or percentages. From the statistics gathered, it said that 80% of the time, the plane arrives right on schedule in El Centro. That means that the probability of NOT arriving on time is the other portion, which is 20%. The answer is 20%.

Answer:

46

Step-by-step explanation:

Replace n by 10 in the rule a(n) = -9 + 5(n - 1):

a(10) = -9 + 5(9) = 45 - 9 = 46

Answer:

7.2

Step-by-step explanation:

just divide the total weight by 2 and add 2.6. after adding 2.6 you subtract that weight from the total.

Answer:

not sure about answer for 2 but here is the answer for question 1...

Step-by-step explanation:

answer for 1.

Volume = bridth × height

volume = 1.5cm × 8cm

volume = 12cm

Answer:6 1/5

Step-by-step explanation:

Lets start by saying that one dozen is 12 and not a bakers dozen (13)

We will first see how many times 2 1/2 can go into 15 1/2 by dividing the two

[tex]15\frac{1}{2} /2\frac{1}{2}=6\frac{1}{5}[/tex]

then we can verify by multiplying 2 1/2 and 6 1/5

[tex]2\frac{1}{2} *6\frac{1}{5} =15\frac{1}{2}[/tex]

Answer:

b. because if there is a bigger population the sample will be more random