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3 years ago

I need help I can’t do this

Mathematics

1 answer:

netineya [11]3 years ago

3 0

Answer:

1. 80 sq ft needed

2. 16 squares:

2 ft * 2 ft = 4 sq ft Each

16 * 4 = 64 sq ft

3. 80 (needed) / 4 (Each) = 32 Total of quilt

4. 80 - 64 = 16 (remainder square foot needed)

5. 16 / 4 (Each) = 4 (Pieces Needed)

ANSWER: 4

Step-by-step explanation:

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A 2003 New York Times CBS news poll sampled 523 adults who were planning a vacation during the next 6 months and found that 141

Aliun [14]

Answer:

The solution can be defined as follows:

Step-by-step explanation:

$H_0 : p_1 = p_2\\\\H_a : p_1 \neq p_2\\$

Testing the statistics values:

$p_1 = \frac{141}{523} = 0.2696 \\\\ n_1 = 523\\\\p_2 = \frac{81}{477} = 0.1698\\\\ n_2 = 477$

$p = \frac{(p_1 \times n_1 + p_2 \times n_2)}{(n_1 + n_2)}$

$= \frac{(0.2696 \times 523 + 0.1698 \times 477)}{( 523 + 477)}\\\\= \frac{(141.0008 + 80.9946)}{(1000)}\\\\= \frac{(221.99)}{(1000)}\\\\= \frac{(222.0)}{(1000)}\\\\= 0.2220$

$SE = \sqrt{ p \times ( 1 - p ) \times [ (\frac{1}{n_1}) + (\frac{1}{n_2}) ] }$

$= \sqrt{( 0.222 \times (1-0.222) \times((\frac{1}{523}) + (\frac{1}{477})))}\\\\= 0.0263$

$z = \frac{(p_1 - p_2)}{SE}$

$= \frac{( 0.2696 - 0.1698)}{0.0263}\\\\= 3.7947$

p = 0.0001

It reject all the null hypothesis values

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Use the first three non-zero terms of a Maclaurin series to estimate the integral from 0 to 1 of the cosine of x squared, dx .

Aleksandr-060686 [28]

Maybe try the last one good luck

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3 years ago

What's the slope intercept equation for (1,2) and (5,-6)

stepan [7]

Answer:

-2

Step-by-step explanation:

m=y^2-y^1/x^2-x^1

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4 years ago

N + 3 = -7 can anyone help me out

OverLord2011 [107]

QUESTION:

n + 3 = -7

ANSWER:

$\blue{\boxed{n = - 10}}$

STEP-BY-STEP EXPLANATION:

First, Subtract 3 from the both sides of the equation

$\blue{\boxed{n = - 7 - 3}}$

Last, Subtract 3 from - 7

$\blue{\boxed{n = - 10}}$

hope it's helps

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3 years ago

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