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3 years ago

12

Claire used yard of green fabric

1 answer:

tankabanditka [31]3 years ago

4 0

According to Siri yards and percent are not compatible units.

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What is the answer please help

hram777 [196]

Answer:

B: 22.5 degrees

Step-by-step explanation:

The interior angles of a pentagon add up to 540 degrees

(if you dont believe me you can turn a pentagon into three triangles, 3x180 = 540)

So you have four same angles say measure "x" degrees, and one final one that measures "5x" degrees, so 9x = 540, and x = 60

Unless I read the problem wrong, 60 degrees is the answer which is not an option :P

Edit: Yea I read it wrong, the final angle is 5 times the other four angles COMBINED, so that angle measures "20x" degrees.

The total would be 24x = 540, and so x = 22.5

4 0

3 years ago

There are 1,039 souvenir paperweights that need to be packed in boxes. Each box will hold 12 paperweights. How many boxes will b

saw5 [17]

1,038/12= 86.5833333 86x12=1,032
1,039-1,032=7 left over So you’ll need 87 boxes

7 0

3 years ago

Read 2 more answers

48% of their readers own a particular make of car. A marketing executive wants to test the claim that the percentage is actually

oksian1 [2.3K]

Answer:

There is no sufficient evidence to support the executive claim

Step-by-step explanation:

From the question we are told that

The population proportion is $p = 0.48$

The sample proportion is $\r p = 0.45$

The sample size is $n = 300$

The level of significance is $\alpha = 0.02$

The null hypothesis is $H_o : p= 0.48$

The alternative hypothesis is $H_a : p \ne 0.48$

Generally the test statistics is mathematically evaluated as

$t = \frac{\r p - p }{ \sqrt{ \frac{p(1 - p )}{n} } }$

=> $t = \frac{0.45 - 0.48 }{ \sqrt{ \frac{0.48 (1 - 0.48 )}{300} } }$

=> $t = -1.04$

The p-value is mathematically represented as

$p-value = 2P(z > |-1.04|)$

Form the z-table

$P(z > |-1.04|) = 0.15$

=> $p-value = 2 * 0.15$

=> $p-value = 0.3$

Given that $p-value > \alpha$ we fail to reject the null hypothesis

Hence we can conclude that there is no sufficient evidence to support the executive claim

5 0

3 years ago

Students in at six grade class are raising money for end-of-the-year camping trip so far they have raise $240 this is 2/5 of the

spayn [35]

Answer:

96 $

Step-by-step explanation:

2

$\frac{2}{5}$

2

$2 \times 240$

$480 \div 5$

the answer is 96$

6 0

2 years ago

Read 2 more answers

The number of phone calls between two cities, N, during a given time period varies directly as the populations p 1 and p 2 of t

kherson [118]

Answer:

∴73,563 calls are made between two cities with populations of 100,000 and 160,000 that are 435 miles apart.

Step-by-step explanation:

Given that,

The number of phone calls between two cities (N )

directly proportional as the value of populations $p_1$ and $p_2$ of two cities.
Inversely varies as the magnitude of distance (d).

$N\propto\frac{p_1p_2}{d}$

$N=k.\frac{p_1p_2}{d}$

Given that,

N=18,000, d=310 miles, $p_1$ =15,500 and $p_2$ =180,000

$18,000=k.\frac{15,500\times 180,000}{310}$

$\Rightarrow k=\frac{18,000\times310}{15,500\times 180,000}$

$\Rightarrow k=\frac{31}{15,500}$

Now,

N=? , d=435 miles, $p_1$ =100,500 and $p_2$ =160,000

$N=\frac{31}{15,500}.\frac{100,000\times 160,000}{435}$

$\Rightarrow N\approx 73,563$

∴73,563 calls are made between two cities with populations of 100,000 and 160,000 that are 435 miles apart.

5 0

3 years ago