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N76 [4]
3 years ago
13

I need help at answer this

Mathematics
1 answer:
vaieri [72.5K]3 years ago
7 0
F , it’s a rhombus . You see how it looks like a 2D shape , well yeah .
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Consider the function f(x)=2|x|-3. What is f(-3)?
olganol [36]

f(-3)=2|-3|-3=6-3=3\\f(-3)=3

Hope I helped and have a great day!

P.S. brainliest would really help im one away from virtuoso

8 0
3 years ago
A line is represented by the equation 3x+2y=4. what is another way to represent the same line?
Deffense [45]

<u>3x + 2y = 4</u>

Here are a few different ways
to represent the same line:

2y = 4 - 3x

y = -1.5x + 2

5y = -7.5x + 10

3x = 4 - 2y

x = -2/3y + 4/3


7 0
3 years ago
The sqaure root of 130 falls between which consecutive numbers
den301095 [7]
11 and 12 that’s the answer
4 0
3 years ago
Suppose a cold beer at 40°F is placed into a warm room at 70°F. Suppose 10 minutes later, the temperature of the beer is 48°F. U
Yuri [45]

Answer:

69.92°F

Step-by-step explanation:

Given:

Initial temperature ( i.e at time, t = 0) = 40°F

Temperature of the room = 70°F

Temperature after 10 minutes ( i.e at time t = 10 ) = 48°F

Now, from Newton's law of cooling

T'(t) = k(A - T(t))

T(t) temperature after time t

T'(t) = \frac{\textup{dT}}{\textup{dt}}

here, A is the room temperature

thus,

\frac{\textup{dT}}{\textup{dt}}  = k(70 - T)

or

\frac{\textup{dT}}{\textup{70-T}} = kdt

on solving the differential equation, we get

T = 70-C^{-kt} ............(1)

Now from the boundary conditions,

 i.e at time, t = 0; T = 40°F

we get,

40 = 70-C^{-k\times0}

or

C = 30

and,

at time, t = 10; T = 48°F

thus,

48 = 70-30^{-k\times10}

or

k = \frac{\textup{-1}}{\textup{10}}ln\frac{11}{15}

or

k = 0.03

Therefore,

for t = 25

from 1 we have

T = 70-30^{-0.03\times25}

or

T = 70 - 0.0780

or

T = 69.92°F

3 0
3 years ago
To decorate a cake, you make a shade of green icing using 3 drops of yellow food coloring for every 4 drops of blue. If you use
djverab [1.8K]
For the answer to the question above, the answer is 16.
You would divide 12 by 3 since that's the number of red dots per blue. Then multiply by four and there's the answer!

I hope my answer helped you. Feel free to ask more questions. Have a nice day!
4 0
3 years ago
Read 2 more answers
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