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katrin [286]
3 years ago
15

I need 20 characters hi please help me in the screenshot omg

Mathematics
1 answer:
swat323 years ago
8 0

The answer is D., I believe.

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Rewrite the expression in the form 9^n<br> (9^3) (9^12)
BartSMP [9]

Answer:

{9}^{15}

Step-by-step explanation:

( {9}^{3} ) \times ( {9}^{12} ) = 9 {}^{3 + 12}  =  {9}^{15}  \\

5 0
3 years ago
When building a roof, carpenters put vertical boards every 2 feet along the horizontal baseline. The height of the boards, y, fo
Tanzania [10]

Answer:

10 feet

Step-by-step explanation:

define variables:

y= height of the boards

x= distance to corner

we are trying to figure out what x is since we know the height of the board

4= 0.4x

divide both sides by 0.4

10=x

3 0
3 years ago
Multiply each pair of numbers -4.25x(-1.25)=
hoa [83]
The answer is 5.31245
7 0
2 years ago
CAN SOMEONE PLEASE HELP ME ASAP PLEASEE ANYBODY LITERALLY ANYONE OUT THERE PLEASE. Determine m∠ABQ and determine m∠BCR.
s2008m [1.1K]

Answer:

ABQ  = 139

BCR is the same as QBC since they are alternate interior angles

BCR = 41

Step-by-step explanation:

CBQ and SCB are same side interior angles so they add to 180

2a-9  + 5a +14 = 180

Combine like terms

7a +5 = 180

Subtract 5 from each side

7a = 175

Divide by 7

7a/7 = 175/7

a = 25

ABQ  is the same as SCB  since they are corresponding angles so

ABQ = SCB = 5a+14 = 5*25+14 = 125+14 = 139

BCR is the same as QBC since they are alternate interior angles

BCR = QBC = 2a-9 = 2*25 -9 = 50-9 = 41

4 0
3 years ago
(Please correct answers only) (Will mark brainliest)
sergij07 [2.7K]
The answer is B., valid because people were chosen randomly
This would make it a valid survey
Hope this helps!
;3
8 0
3 years ago
Read 2 more answers
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