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qaws [65]
3 years ago
15

Darrickwebb23 has been hacking, stealing, lying, copying, and giving fake answers since his first answer... please don't report

me just go look at his profile to see, if you want you can even repost this to help ty and have a good day (btw u are a snitch if u report this no offense)
im not tryin to be rude i just want some people to somehow email brainly thankyou
don't take this personally
Have a good day!!! :D
Mathematics
1 answer:
RUDIKE [14]3 years ago
8 0
Maybe instead of posting this as a question you should have emailed it straight to Brainly
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School newspaper staff went to three different sports games to survey students on their favorite sport, and the results are show
katen-ka-za [31]
The results are biased.  

When you go to a particular sporting event and ask someone their favorite sport, they are more likely to respond the sport that they're watching at that moment.  This creates bias.
3 0
3 years ago
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Sally is baking cupcakes for her birthday party.
Katena32 [7]

Answer:

Where's the rest of the question?

5 0
3 years ago
A jeweler had a fixed amount of gold to make bracelets and necklaces. The amount of gold in each bracelet is 7 grams and the amo
OlgaM077 [116]

Answer:

3 necklaces and 12 bracelets

Step-by-step explanation:

Bracelets = x +4

amount of necklace gold  =   20*x

amount of gold in bracelet = 7*(x+4)    

added together = 109 gm

 20x    +  7(x+4)     =    109    

20x + 7x+28 = 109

27x+28=109

-28        -28

27x= 81

/27   /27

x=3 necklaces

then bracelets = 3+4=12

6 0
3 years ago
Amy is pulling a wagon with a force of 30 pounds up a hill at an angle of 25°. Give the force exerted on the wagon as a vector a
Fofino [41]

Answer:

Vector (ordered pair - rectangular form)

\vec F = (27.189,12.679)\,[lbf]

Vector (ordered pair - polar form)

\vec F = (30\,lbf, 25^{\circ})

Sum of vectorial components (linear combination)

\vec F = 27.189\cdot \hat{i} + 12.679\cdot \hat{j}\,[N]

Step-by-step explanation:

From statement we know that force exerted on the wagon has a magnitude of 30 pounds-force and an angle of 25° above the horizontal, which corresponds to the +x semiaxis, whereas the vertical is represented by the +y semiaxis.

The force (\vec F), in pounds-force, can be modelled in two forms:

Vector (ordered pair - rectangular form)

\vec F =  \left(\|\vec F\|\cdot \cos \theta, \|\vec F\|\cdot \sin \theta\right) (1)

Vector (ordered pair - polar form)

\vec F = \left(\|\vec F\|, \theta\right)

Sum of vectorial components (linear combination)

\vec {F} = \left(\|\vec F\|\cdot \cos \theta\right)\cdot \hat{i} + \left(\|\vec F\|\cdot \sin \theta \right)\cdot \hat{j} (2)

Where:

\|\vec F\| - Norm of the vector force, in newtons.

\theta - Direction of the vector force with regard to the horizontal, in sexagesimal degrees.

\hat{i}, \hat{j} - Orthogonal axes, no unit.

If we know that \|\vec F\| = 30\,lbf and \theta = 25^{\circ}, then the force exerted on the wagon is:

Vector (ordered pair - rectangular form)

\vec F= \left(30\cdot \cos 25^{\circ}, 30\cdot \sin 25^{\circ}\right)\,[lbf]

\vec F = (27.189,12.679)\,[lbf]

Vector (ordered pair - polar form)

\vec F = (30\,lbf, 25^{\circ})

Sum of vectorial components (linear combination)

\vec F = (30\cdot \cos 25^{\circ})\cdot \hat{i} + (30\cdot \sin 25^{\circ})\cdot \hat{j}\,[N]

\vec F = 27.189\cdot \hat{i} + 12.679\cdot \hat{j}\,[N]

8 0
3 years ago
Becky bought a magazine for $3.90, and the sales tax was 8.25%. How much sales tax did Becky pay on the magazine?
Ilya [14]

Answer:

$4.22 Is your answer.

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
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