All categories

3 years ago

Where would √130 be located on a number line

Mathematics

1 answer:

Artyom0805 [142]3 years ago

4 0

144 = 12^2
121 = 11^2

so root(130) is between 11 and 12, so is about 11.4 on the number line.

hope this helps :)

You might be interested in

Triangles ABC and DEF have the following characteristics:

hram777 [196]

Step-by-step explanation:

AAS can be used prove that △ABC ≅ △DEF

8 0

3 years ago

Read 2 more answers

Two researchers conducted a study in which two groups of students were asked to answer 42 trivia questions from a board game. Th

denpristay [2]

Answer:

(1) Correct option is B.

(2) Correct option is C.

Step-by-step explanation:

The information provided is:

$n_{1}=200,\ \bar x_{1}=22.7,\ s_{1} = 4.5\\n_{2}=200,\ \bar x_{2}=19.7,\ s_{2} = 4.3$

The (1 - <em>α</em>)% confidence interval for the difference between two mean is:

$CI=\bar x_{1}-\bar x_{2}\pm t_{\alpha/2, (n_{1}+n_[2}-2}\sqrt{\frac{s_{1}^{2}}{n_{1}}+\frac{s_{2}^{2}}{n_{2}} }$

The critical value of <em>t</em> is:

$\alpha /2=0.05/2=0.025$

degrees of freedom $=n_{1}+n_{2}-2=200+200-2=398$

$t_{\alpha/2, n_{1}+n_{2}-2}=t_{0.025, 398}=1.96$

Compute the 95% confidence interval for the difference between two mean as follows:

$CI=22.7-19.7\pm 1.96\sqrt{\frac{4.5^{2}}{200}+\frac{4.3^{2}}{200} }\\=3\pm0.8624\\=(2.1376, 3.8624)\\\approx(2.14, 3.86)$

Thus, the 95% confidence interval, (2.14, 3.86) implies that the true mean difference value is contained in this interval with probability 0.95.

Correct option is B.

The null value of the difference between means is 0.

As the value 0 is not in the interval this implies that there is a difference between the two means, concluding that priming does have an effect on scores.

Correct option is C.

4 0

3 years ago

70 - q - q - 2q = 80???

Aneli [31]

70-q-q-2q= 80

combine like terms first

so you get 70-4q= 80

subtract 70 on both sides and you get -4q= 10

divide -4 on both sides and you get q= 10/-4 or -2.5

3 0

3 years ago

Lily graphs segment LM. Then, she reflects the segment across the y-axis. Which statement compares the lengths of the segment LM

Free_Kalibri [48]

Solution

The reflection is a rigid transformation. This does not affect the length of a line segment.

Therefore, the line segments are equal.

Hence, LM = L'M'

Thank you. :)

8 0

3 years ago

Read 2 more answers

The floor of a concert venue is 100 3/4 feet by 75 1/2 feet. What is the area of the floor

Anettt [7]

3/4 = 0.75 1/2 = 0.5 Area = l * w 100.75 * 75.5 = 7,606.625 Answer = 7,606.625 ft

5 0

3 years ago

Read 2 more answers