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bazaltina [42]
2 years ago
9

-5f-2+8-3k use f=7 and k=8

Mathematics
2 answers:
gulaghasi [49]2 years ago
7 0
The answer to this equation is -53. This is because 7 times -5 equals -35. -35-2 equals -37. -3 times 8 equals -24. -24 plus 8 equals -16. -37+(-16)= -53
Lapatulllka [165]2 years ago
4 0
-5(7)-2+8-3(8)
-35-2   +8  -24 
-35-2
-37 + 8 -24
-37+8
-29-24
-53
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Find the perimeter of the window to the nearest hundredth.<br><br> also how do you do it?
k0ka [10]

  • <em>I am assuming the picture is of a stained glass window in the shape of a semicircle</em>.

Answer: 7.71 feet.

Step-by-step explanation: <em>The formula for finding the circumference of a circle is \frac{1}{2} π × d + d.</em>

The diameter is 3 feet. Substitute this into the equation:

\frac{1}{2} π × 3 + 3.

Solve -

3.14 × 3 = 9.42

\frac{1}{2} of 9.42 = 4.71

4.71+3 = 7.71

Round -

The answer is already rounded.

Hope this helped!~

6 0
3 years ago
A sea lion dove from the water's surface at sea level to an altitude of −216.12 meters in 2.4 minutes.
Valentin [98]
Hello,


The answer to this problem is -90.05.


Hope this helps
4 0
3 years ago
Read 2 more answers
Someone please explain how to get the answer and what the answer is thank you
Natalka [10]
The volume of a cylinder is

V=hpr^2 in this case h=40, r=20/2=10, and we will approximate pi as 3.14 so:

V=40(3.14)(10^2)

V=12560 ft^3
7 0
3 years ago
&lt; ADF measures 2x degrees and &lt; FDC measures x + 12 degrees. What is the measure
gtnhenbr [62]

Answer:

<h2>Angle ADF is equal to 52° and angle FDC is equal to 38°.</h2>

Step-by-step explanation:

In the image attaches, you can observe that angles ADF and FDC are complementary angles, because they sum 90°.

\angle ADF + \angle FDC = 90\°

And we know that

\angle ADF=2x\\\angle FDC = x+12

Replacing these expressions, we have

2x+x+12=90\°\\3x=90\° - 12\°\\x=\frac{78}{3}\\ x=26

Then, we replace this value in each expression to find both angles measures.

\angle ADF= 2(26)=52\°\\\angle FDC = 26+12=38\°

Therefore, angle ADF is equal to 52° and angle FDC is equal to 38°.

7 0
2 years ago
Work out m and c for the line:<br><br>y=x-8<br><br>never mind i got it
Nonamiya [84]

Answer:

m = 1     c = -8

Step-by-step explanation:

4 0
3 years ago
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