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GaryK [48]
2 years ago
6

Add (3a+1)+(5x+8)=??

Mathematics
1 answer:
IrinaVladis [17]2 years ago
5 0
Your answer should be 3a^2 + 5x + 9
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NEED ASAP!!!!!!!!!!!!. Multiply and express the result in scientific notation:
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Your answer is 8.4 X 10^7.

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4 0
3 years ago
Can someone help me with 1& 2 will mark brainiest
melamori03 [73]
Sin 45° = opposite side / hypotenuse

1/2 = 8/h
h = 16

2)6/12 = 1/2
1/2 = sin 45°

6√3/12 = √3/2
√3/2 = cos 30°

Sum of angles of triangle = 180°
The 3rd angle = 180 - (45 + 30) = 180 - 75 = 105°

Angles = 30° , 45° , 105°


7 0
3 years ago
Solve the compound inequality 10 >= 7 + 3x and 9-4x<=1 . show steps please.
pav-90 [236]
10 >= 7 + 3x                                              -4x+9<=1
-7 >= -7  - subtract 7                                       -9<=-9   - Subtract 9
__________                                               ___________
3 >=3x  - divide by 3                                       -4x<=-8    - divide by -4

x>=1                                                                      x<=2
5 0
2 years ago
Read 2 more answers
Work out area of a triangle base 9cm height 4cm
insens350 [35]
Area = 1/2 x base x height

Area = 1/2 x 9 x 4

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6 0
3 years ago
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6x+4y=22<br> 2x-y=1<br> solve by elimination
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6x + 4y = 22
+
2x - y = 1
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