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umka2103 [35]
3 years ago
6

Someone check my answers please

Mathematics
1 answer:
Aleksandr-060686 [28]3 years ago
7 0

Answer:

their all good but B is blank

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Question 3 of 10
guapka [62]

Answer:

That is quite simple,7 is the best choice

3 0
2 years ago
Help me please. Find the measures of CAD and DAE
VladimirAG [237]

well, we know the "sum" of both angles is 90°, notice the rectangle in the corner, so we can say that the angles are simply complementary angles, thus

\left( \cfrac{3}{2}x+20 \right)+2x=90\implies \stackrel{\textit{multiplying both sides by }\stackrel{LCD}{2}}{2\left( \cfrac{3}{2}x+20 + 2x \right)=2(90)} \\\\\\ 3x+40+4x=180\implies 7x+40=180\implies 7x=140\implies x=\cfrac{140}{7} \\\\\\ x = 20~\hfill \stackrel{\measuredangle CAD}{\cfrac{3}{2}20+20\implies 50}\qquad\qquad \stackrel{\measuredangle DAE}{2(20)\implies 40}

8 0
2 years ago
What is the value of 8+ h² when h = 3?
MrMuchimi

Answer:

17

Step-by-step explanation:

8 + h^2

Let h = 3

8 + 3^2

We find the value of 3^2 first using PEMDAS

8 + 9

Then add

17

The result is 17

4 0
1 year ago
Read 2 more answers
Suppose that the amount of algae in a pond doubles every 4 hours. If the pond initially contains 90 pounds of algae, how much al
UNO [17]
After 12 hours the pound would have 720 pounds of algae.
4 0
3 years ago
Your insurance premium is $3400 annually. Your employer pays 80% of the premium. How much will you pay annually?
pochemuha
I think it is 680 if not i am sorry
4 0
3 years ago
Read 2 more answers
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