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2 years ago

Please help i’ll give brainliest!!! thanks

Mathematics

2 answers:

Svetach [21]2 years ago

5 0

Answer:

B.) Lead by example

Step-by-step explanation:

have a great day!!

harkovskaia [24]2 years ago

4 0

lead by example :))

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PLEASE HELP FOR BRAINLIEST! ;)

IrinaVladis [17]

1. D - Since it's random, everyone has an equal chance of being picked

2. B - Since the people are already registered voters it would be easier to get a response from them. Plus, picking ever 10th person makes it random.

3. false - a fair question wouldn't make assumptions about the population

4. B - "Don't you think" causes the answerer to be pushed towards saying yes

hope this helps :)

5 0

2 years ago

A candy box is made from a piece of cardboard that measures 23 by 13 inches. Squares of equal size will be cut out of each corne

wolverine [178]

Answer:

2.67 inches.

Step-by-step explanation:

Assuming that we represent the size of the squares with the letter y, such that after the squares are being cut from each corner, the rectangular length of the box that is formed can now be ( 23 - 2y), the width to be (13 - 2y) and the height be (x).

The formula for a rectangular box = L × B × W

= (23 -2y)(13-2y) (y)

= (299 - 46y - 26y + 4y²)y

= 299y - 72y² + 4y³

Now for the maximum volume:

dV/dy = 0

This implies that:

299y - 72y² + 4y³ = 299 - 144y + 12y² = 0

By using the quadratic formula; we have :

$= \dfrac{-b \pm \sqrt{b^2 -4ac}}{2a}$

where;

a = 12; b = -144 and c = 299

$= \dfrac{-(-144) \pm \sqrt{(-144)^2 -4(12)(299)}}{2(12)}$

$= \dfrac{144 \pm \sqrt{20736 -14352}}{24}$

$= \dfrac{144 \pm \sqrt{6384}}{24}$

$= \dfrac{144 \pm79.90}{24}$

$= \dfrac{144 + 79.90}{24} \ \ OR \ \ \dfrac{144 - 79.90}{24}$

$= 9.33 \ \ OR \ \ 2.67$

Since the width is 13 inches., it can't be possible for the size of the square to be cut to be 9.33

Thus, the size of the square to be cut out from each corner to obtain the maximum volume is 2.67 inches.

3 0

2 years ago

Marissa is choosing a four-digit PIN for her ATM card. The first digit must be a digit from 1 through 9. For the other three dig

nydimaria [60]

Answer: the answer is C

Step-by-step explanation:

i did it

7 0

3 years ago

Please give me the correct answer.I was trying to find a tutor to help me but all of them said that they couldn't find the answ

otez555 [7]

Answer:

While it is a linear equation, it is not a linear function. This is because it is shown to have infinite numbers of y-values instead of being paired up with only one.

6 0

2 years ago

Solve for x. A) 46 B) 38 C) 45 D) 40

yarga [219]

Answer:

C) 45

Step-by-step explanation:

By Basic Proportionality Theorem:

$\frac{x}{18} = \frac{20}{8} \\ \\x = \frac{18 \times 20}{8} \\ \\ x = \frac{360}{8} \\ \\ x = 45$

8 0

2 years ago