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bagirrra123 [75]
2 years ago
6

The PERIMETER of a rectangle is 75 millimeters. If the width of the rectangle is 20 millimeters, what is the length?

Mathematics
2 answers:
zloy xaker [14]2 years ago
8 0

Answer:

Step-by-step explanation:

cat

Irina-Kira [14]2 years ago
5 0

The length is 50 I think

Hope this helps

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Find the equation of the exponential function represented by the table below
Softa [21]

Answer:

y=4(4)^x

Step-by-step explanation:

Exponential functions are represented in the form y=a(b)^x, where a is the initial value and b is the multiplier.

Here, we see that when x = 0, y = 4. This means that 4 is our initial value, or a. You can look at the a variable almost being like the y-intercept of a graph.

Next, we must solve for b. We can do 16 ÷ 4 to find the slope, or multiplier of this function, because 16 is 1 input x-value up from 0. 16 ÷ 4 = 4.

So, we now have all the needed variables, so we plug them into the formula

y=a(b)^x

8 0
2 years ago
PLEASE HELP!!!
pav-90 [236]

Answer:

45

Step-by-step explanation:

Have a nice day :)

3 0
3 years ago
Solve 3-2cos²x-3sinx=0 for 0≤x≤360
crimeas [40]
<span>3-2(Cosx)^2 - 3Sinx = 0.

Recall (Sinx)^2 + (Cosx)^2  = 1.
Therefore  (Cosx)^2 =  1 - (Sinx)^2
Substitute this into the question above.

</span><span>3-2(Cosx)^2 - 3Sinx = 0
3 - 2(1 - (Sinx)^2)  - 3Sinx = 0  Expand
3 - 2 + 2(Sinx)^2  -  </span><span><span>3Sinx = 0</span>
1 + 2(</span><span>Sinx)^2  - 3Sinx  = 0  Rearrange
2(Sinx)^2 </span><span><span>- 3Sinx + </span>1  = 0 
Let p = Sinx
2p^2  -  3p + 1  = 0    Factorise the quadratic expression
2p^2 - p - 2p +1 = 0
p(2p -1) - 1(2p -1) = 0
(2p-1)(p -1) = 0

Therefore  2p-1=0    or  (p-1) = 0
2p=0+1    or  (p-1) = 0
2p=1       or    p = 0 +1.
p=1/2       or  p = 1            Recall p = Sinx

Therefore Sinx = 1/2 or 1.
For  0<u><</u>x<u><</u>360

Sinx =1/2,  x = Sin inverse (1/2) , x = 30, 
                                   (180-30)- 2nd Quadrant = 150 deg
Sinx = 1,  x = Sin inverse (1) , x = 90

Therefore x = 30,90 & 150 degrees.

Cheers.</span>
7 0
3 years ago
if you have a test average of 92 and a standard deviation of 1.8, you generally do well on test. true or false
jeka57 [31]
By most standards yes
3 0
3 years ago
Find The Volume of the Prism
DiKsa [7]
The answer is 456 cubic units the formula is the one on the left

4 0
3 years ago
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