All categories

2 years ago

Pls answer quick ill give more points if right.

Mathematics

2 answers:

slega [8]2 years ago

6 0

C I believe it makes the most sense.

Vikentia [17]2 years ago

3 0

Answer:

I WOULD SAY C! IT MAKES THE MOST SENES

Step-by-step explanation:

Defining the problem.

Generating alternatives.

Evaluating and selecting alternatives.

Implementing solutions.

C says "Write the facts, organize your thoughts and define your strategy."

You might be interested in

△QRS is rotated about point P to △Q′R′S′ . Which statements are true about the pre-image and image?

yuradex [85]

Note that rotation will not affect the shape and size of an object.

Rotation with respect to a point preserves the corresponding sides and the corresponding angles of the original image.

Hence, the statements

The corresponding angle measurements in each triangle between the pre-image and the image are preserved and

The corresponding lengths, from the point of rotation, between the pre-image and the image are preserved

are true.

3 0

3 years ago

14(a + 2) = 168 find a

valkas [14]

$\bold\red{Answer:}$

14a+28=168

14a=140

a=10

hope it helps

8 0

2 years ago

Plz help. I need number 6 and 7

Cerrena [4.2K]

80 possible 2 digit passwords
5040 possible 4 digit PIN's with no repeats

can't see 7 to answer pls tell

8 0

3 years ago

Find the distance between each pair of points.round your awnser to the nearest tenths,if nessesary (-3,-4),(0,0) problem 2 (-8,0

Arte-miy333 [17]

Answer:

1st one: -3,-4 away

2nd one: Lets just say I got kinda confused on that one so sorry for any inconvenience on my behalf from this question.

Step-by-step explanation:

I will call (-3,-4) Point A and I'll call (0,0) Point B. Point A is at (-3,-4) and Point B is obviously at the origin. That makes it easy, because you just subtract Point A by Point B to find how far away they are.

3 0

3 years ago

A small metal bar, whose initial temperature was 10° C, is dropped into a large container of boiling water. How long will it tak

IgorC [24]

Answer

According to newton law of cooling

$\dfrac{d T}{dt} = k (T - T_a)$

and

$T = Ce^{kt} + T_a$

now At Ta = 100

T₀ = 10 °C

T₁ = 12° C

$T(0) = Ce^{0} + T_a$

10 = C + 100

C = -90

now,

$12 = -90e^k + 100$

$e^k = \dfrac{88}{90}$

$k = ln{\dfrac{88}{90}}$

at time equal to t

T(t) = 70

$T(t) = -90 (\dfrac{88}{90})^t + 100$

$70 = -90(\dfrac{88}{90})^t + 100$

$(\dfrac{88}{90})^t = \dfrac{1}{3}$

$t\times ln(\dfrac{88}{90}) = ln(\dfrac{1}{3})$

t = 48.88 s

hence, after 48.88 s the temperature of the body will be 70°C

b) time taken to reach 98°C

$T(t) = -90 (\dfrac{88}{90})^t + 100$

$98 = -90(\dfrac{88}{90})^t + 100$

$(\dfrac{88}{90})^t = \dfrac{1}{45}$

$t\times ln(\dfrac{88}{90}) = ln(\dfrac{1}{45})$

t = 390 s

hence, after 390 s the temperature of the body will be 98°C

5 0

2 years ago