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weeeeeb [17]
3 years ago
15

Only 3 and 7 plz zoom in if u can't read it

Mathematics
2 answers:
s344n2d4d5 [400]3 years ago
8 0
37 and 48 became that's what my teacher said
Fed [463]3 years ago
3 0
#3. not regular
#7. (you just have to draw a figure and state if it is or is not a regular figure)
Sorry that I could not help with #7.
Hope this helps:)
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Solve each inequality(x+4)(x-8)≥0
Stolb23 [73]

Answer: x

≤

−

4

or

x

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8

Step-by-step explanation:

8 0
2 years ago
Just help me please I really need help please
Sonbull [250]

Answer:

D

Step-by-step explanation:

add up all the inside angels, you'll get 122, subtract that from the total area of the triangle which is 180. you will have 58 for your missong inside triangle. the outside line makes 180 with the angel we just found, so subtract 58 from 180 and you get 122. check out Khan Academy for help.

8 0
3 years ago
Read 2 more answers
What is the solution of the system?
spin [16.1K]
The Answer is b: x = 18, y = -20

Proof:

Solve the following system:
{4 x + 3 y = 12 | (equation 1)
{7 x + 5 y = 26 | (equation 2)

Swap equation 1 with equation 2:
{7 x + 5 y = 26 | (equation 1)
{4 x + 3 y = 12 | (equation 2)

Subtract 4/7 × (equation 1) from equation 2:
{7 x + 5 y = 26 | (equation 1)
{0 x+y/7 = (-20)/7 | (equation 2)

Multiply equation 2 by 7:
{7 x + 5 y = 26 | (equation 1)
{0 x+y = -20 | (equation 2)

Subtract 5 × (equation 2) from equation 1:
{7 x+0 y = 126 | (equation 1)
{0 x+y = -20 | (equation 2)

Divide equation 1 by 7:
{x+0 y = 18 | (equation 1)
{0 x+y = -20 | (equation 2)

Collect results:

Answer: {x = 18, y = -20
6 0
3 years ago
An element with mass 780 grams decays by 17.1% per minute. How much of the element is remaining after 19 minutes to the nearest
Anit [1.1K]
Step 1
Formulate a recursive sequence modeling the number of grams after n  minutes.
we have that
100%-17.1%-------------- > 82.9%------------> 0.829

a(n) = 780*[0.829<span>^n]
</span>
for n=19 minutes
a(19)=780*[0.829^(19)]=22.1121 g---------------> 22.1 g

the answer is 22.1 g
6 0
3 years ago
At the store for every 6 books sold there were 5 movies sold. What is the ratio of books sold to movies sold?
tatyana61 [14]

Answer:

6,5

Step-by-step explanation:

6 + 5 = 11

6 to 5

6,5

3 0
3 years ago
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