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3 years ago

-4, -5, 0,5 Which pair of numbers has a sum of zero? PLEASE!!!

1 answer:

7 0

Answer: the pair of numbers with a sum of zero is -5 and 5
Explanation when both of them are the same number and one is negative while the other is positive, they cancel each other out and become zero. Hope I helped!

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Starting at (0,0) if you were to go up 7 units and left 4 what coordinates would you end up at? What quadrant would you be in

Alex787 [66]

Answer:

(-4,7) and the 2nd quadrant

Step-by-step explanation:

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3 years ago

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If x^2+2=3^2/3+3^-2/3 then prove that 3x^3+9x-8=0

Mama L [17]

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4 years ago

Question 1 of 10

Viktor [21]

Answer:

4x+1

Step-by-step explanation:

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3x-1+x+2

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8 0

3 years ago

20 points and a brainliest! And PLEASE show your work.

nalin [4]

Answer:

Volume of cubiod= 108 in³
TSA of cubiod = 168 in²

Step-by-step explanation:

Given:

Dimensions of cubiod :

Length = 9 in.
Breadth = 6 in.
Height = 2 in.

To Find:

Volume and Total surface area

Solution:

We know that,

Volume of cubiod = Lbh

So,

→ Volume = 9 × 6 × 2

→ Volume = 54 × 2

→ Volume = 108 in³

And,

TSA of cubiod = 2(lb + bh + hl)

Substituting the values, we get:

→ TSA = 2(9 × 6) + (6 × 2) + (9 × 2)

→ TSA = 2(54 + 12 + 18)

→ TSA = 2 × 84

→ TSA = 168 in²

Hence,

Volume of cubiod= 108 in³
TSA of cubiod = 168 in²

7 0

2 years ago

Read 2 more answers

Suppose a marketing company wants to determine the current proportion of customers who click on ads on their smartphones. It was

Zolol [24]

Answer: 10 customers.

Step-by-step explanation:

The formula to find the required sample size :

$n=p(1-p)(\dfrac z^*}{E})^2$ (1)

, where p= prior population proportion.

n= sample size.

$\sigma$ = Population standard deviation from previous studies.

Let p be prior population proportion of the customers who click on ads on their smartphones .

As per given , we have

p=0.62

E= 0.27

For 92% confidence , significance level : $\alpha=1-0.92=0.08$

The critical value of z for 92% confidence interval from z-table would be

$z_{\alpha/2}=z_{0.04}=1.75$

Put theses values in the formula (1), we will get

$n=(0.62)(1-0.62)(\dfrac{(1.75)}{0.27})^2$

$n=(0.2356)(6.48148)^2= 9.89745775254\approx 10$

Therefore , the company should survey 10 customers .

6 0

3 years ago