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fredd [130]
3 years ago
5

Can someone help me please I’m struggling so much. let me know if the things that I put already are right

Mathematics
1 answer:
makvit [3.9K]3 years ago
5 0

your calculations for volume (pi x r^2 × h) and surface area (2 × pi × r (h+r)) are correct. However your ratio are incorrect. From the formulas the ratio of surface area to volume would be r×h:2(h+r)

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Complete the table below for the function y = 5x - 2.
Jlenok [28]

Answer:

8, 18, 23, 43

Step-by-step explanation:

x = 2 => y = 8

x = 4 => y = 18

x = 5 => y = 23

x = 9 => y = 43

6 0
3 years ago
A^2-b^2=(a+b)(a-b) label perfect square trinomial or difference two square
sleet_krkn [62]

Answer:

difference of squares

Step-by-step explanation:

a^2 - b^2 = (a-b)(a+b)

This is the definition of the difference of squares

4 0
3 years ago
In an August 2012 Gallup survey of 1,012 randomly selected U.S. adults (age 18 and over), 536 said that they were dissatisfied w
soldier1979 [14.2K]

Answer:

Yes, result is significant ; PVALUE < α

Step-by-step explanation:

Given :

x = 536

n = sample size = 1012

Phat = x / n = 536 / 1012 = 0.5296 = 0.53

H0 : P0 = 0.5

H1 : P0 > 0.5

Test statistic :

(Phat - P0) ÷ sqrt[(P0(1 - P0)) / n]

1-P0 = 1 - 0.5 = 0.5

(0.53 - 0.5) ÷ sqrt[(0.5*0.5)/1012]

0.03 ÷ 0.0157173

= 1.9087

Pvalue :

Using the Pvalue from test statistic :

Pvalue = 0.02815

To test if result is significant :

α = 0.05

0.02815 < 0.05

Pvalue < α ; Hence, result is significant at α=0.05; Hence, we reject H0.

3 0
3 years ago
at a local preschool there is a ratio of 4 of 3 boys to every 4 girls if there are 245 total preschoolers enrolled how many are
TiliK225 [7]
There are 105 boys. and 140 girls
4 0
3 years ago
V = the square root of 2as Solve for s
Gnom [1K]
 As, v=√2as
Squaring both sides,
v²=2as
∴ s= v²/2a
6 0
3 years ago
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