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11111nata11111 [884]

2 years ago

15

Make an estimate for 3389+2712. Write a number model to show your strategy. I know the answer. Can someone explain this to me pl

s

1 answer:

Vesna [10]2 years ago

8 0

Basically explain how you managed to get the answer that you got

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Construct a tangent to the circle at point B.<br><br> PLEASE HELP!!

Serga [27]

Answer:

you do a line that goes through b but doesn't go through the circle

3 0

3 years ago

What is the approximate circumference of a circle with 17.4 cm

Natasha_Volkova [10]

If the diameter of the circle is 17.4 cm, the approximate circumference of the circle would be 54.636. If the radius of the circle is 17.4 cm, the approximate circumference would be 109.272.

Explanation:
Circumference of a circle = Pi (3.14) x diameter

In this case, the diameter (I am assuming) is 17.4, so in order to solve the circumference you must multiply Pi by 17.4.

(If 17.4 is the radius, simple multiply 17.4 by 2 and then solve for the circumference like you normally would. You must multiply the radius by two because the radius is half of the circles circumference.

Hope that helps. Happy learning!

8 0

3 years ago

Read 2 more answers

What are the solution(s) to the quadratic equation 50 – x2 = 0?

Paraphin [41]

Answer:

No real solution

Step-by-step explanation:

There is no perfect squares in 50

6 0

3 years ago

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A resident of Bayport claims to the City Council that the proportion of Westside residents

Kazeer [188]

Answer:

The test statistics is $z = -1.56$

The p-value is $p-value = 0.05938$

Step-by-step explanation:

From the question we are told

The West side sample size is $n_1 = 578$

The number of residents on the West side with income below poverty level is $k = 76$

The East side sample size $n_2=688$

The number of residents on the East side with income below poverty level is $u = 112$

The null hypothesis is $H_o : p_1 = p_2$

The alternative hypothesis is $H_a : p_1 < p_2$

Generally the sample proportion of West side is

$\^{p} _1 = \frac{k}{n_1}$

=> $\^{p} _1 = \frac{76}{578}$

=> $\^{p} _1 = 0.1315$

Generally the sample proportion of West side is

$\^{p} _2 = \frac{u}{n_2}$

=> $\^{p} _2 = \frac{112}{688}$

=> $\^{p} _2 = 0.1628$

Generally the pooled sample proportion is mathematically represented as

$p = \frac{k + u}{ n_1 + n_2 }$

=> $p = \frac{76 + 112}{ 578 + 688 }$

=> $p =0.1485$

Generally the test statistics is mathematically represented as

$z = \frac{\^ {p}_1 - \^{p}_2}{\sqrt{p(1- p) [\frac{1}{n_1 } + \frac{1}{n_2} ]} }$

=> $z = \frac{ 0.1315 - 0.1628 }{\sqrt{0.1485(1-0.1485) [\frac{1}{578} + \frac{1}{688} ]} }$

=> $z = -1.56$

Generally the p-value is mathematically represented as

$p-value = P(z < -1.56 )$

From z-table

$P(z < -1.56 ) = 0.05938$

So

$p-value = 0.05938$

3 0

3 years ago

A 3-yard-long ribbon was used to trim for dresses. Each dress used the same amount of ribbon. How much ribbon was used for each

Tcecarenko [31]

Answer:

For x number of dresses, the answer is 3/x.

Step-by-step explanation:

Divide the length of the ribbon by the number of dresses.

If there were x dresses, the answer is 3/x.

6 0

2 years ago

Read 2 more answers