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svet-max [94.6K]
3 years ago
10

I WILL MARK BRAINLIEST

Mathematics
1 answer:
Reil [10]3 years ago
3 0

Answer:

c.

Step-by-step explanation:

The students in social studies club is bias, the boys will probibly pick the easier one and the teachers will pick the one that causes less mess. but the only way to have a fair and random survey is to ask every student.

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the diameter of a piston for an automobile is 3 11/16in with tolerence of 1/64in. find the upper and lower limits of the pistons
padilas [110]

Upper Tolerance

Remark

The 11/16 is the only thing that will be affected. The three won't go up or down when we add 1/64 so we should just work with the 11/16. We need only add 11/16 and 1/64 together to see what the upper range is. Later on we can add 3 into the mix.

Solution

<u>Upper Limit</u>

\dfrac{11}{16} +  \dfrac{1}{64}

Now change the 11/16 into 64. Multiply numerator and denominator or 11/16 by 4

\dfrac{11*4}{16*4} +  \dfrac{1}{64}

\dfrac{11*4}{16*4} +  \dfrac{1}{64} Which results in

\dfrac{44}{64} +  \dfrac{1}{64}

With a final result for the fractions of 45/64

So the upper tolerance = 3 45/64

<u>Lower Tolerance</u>

Just follow the same steps as you did for the upper tolerance except you subtract 1/64 like this.

\dfrac{11}{16} - \dfrac{1}{64}

Your answer should be 3 and 43/64


4 0
3 years ago
State of the triangles in each pair are similar. If so, state how you know they are similar and complete the similarity statemen
Blababa [14]

Answer:

SSS, UVD, the answer is D

Step-by-step explanation:

90/9 = 10

70/7 = 10

80/8 = 10

triangle LMN congruent triangle UVD

6 0
2 years ago
Solve this quadratic equation using the quadratic formula. 5 - 10x - 3x2 = 0
horsena [70]

Answer:

x = (-5 ± 2√10) / 3

Step-by-step explanation:

5 − 10x − 3x² = 0

Write in standard form:

-3x² − 10x + 5 = 0

Solve with quadratic formula:

x = [ -b ± √(b² − 4ac) ] / 2a

x = [ -(-10) ± √((-10)² − 4(-3)(5)) ] / 2(-3)

x = [ 10 ± √(100 + 60) ] / -6

x = (10 ± 4√10) / -6

x = (-5 ± 2√10) / 3

4 0
3 years ago
Read 2 more answers
PLEASE HELP!!!!!!!<br> (do not answer if you do not know, so the points go to people who do know.)
zheka24 [161]

Answer:

1a = 8 cu. in.

1b = 48 cu. yd.

1c = 15 cu. ft.

2a. 36 cu. yd.

2b = 126 cu. ft.

2c = 90 cu. ft.

3a = 112 cu. in.

3b = 60 cu. yd.

3c = 189 cu. ft.

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
I need help asap thanks
Sunny_sXe [5.5K]
V=hb

h= \frac V b

h = \dfrac{ x^3 - 3x^2 + 5x - 3}{x^2 -2}

Expressing that as a quotient and remainder,

h =x - 3 = \dfrac{ 7 x - 9} { x^2 - 2}

First choice.



7 0
3 years ago
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