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2 years ago

Circle all the words that describe the quadrilateral

Mathematics

2 answers:

Fudgin [204]2 years ago

5 0

A quadrilateral is a shape with 4 sides. For number 2 you would circle square and rectangle. For number 3 you would circle trapezoid.

svp [43]2 years ago

3 0

Rombus I guess I don’t really know

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Which line has a slope of 1 and a y-intercept of 2?

Vedmedyk [2.9K]

Answer:

bottom left :)

Step-by-step explanation:

3 0

2 years ago

A researcher is planning to compare the effects of two different types of lights on the growth of bean plants. She expects that

kicyunya [14]

Answer:

The sample size is $n = 36$

Step-by-step explanation:

From the question we are told that

The sample standard deviation is $s = 1.5$

The mean difference of the two groups is $\=x _ 1 - \=x_2 = 1$

The standard error is $SE = \frac{ \= x_1 - \= x_2}{4}$

=> $SE = \frac{1}{4}$

Let assume that the confidence level is 95% hence the level of significance is

$\alpha = (100-95)\%$

=> $\alpha = 0.05$

So the critical value of $\frac{\alpha }{2}$ obtained from the normal distribution table is

$Z_{\frac{\alpha }{2} } = 1.96$

Generally the margin of error is mathematically evaluated as

$E = Z_{\frac{\alpha }{2} } * SE$

$E = 1.96 * \frac{1}{4}$

$E = 0.49$

Generally the sample size is mathematically represented as

$n =[ \frac{Z_{\frac{\alpha }{2} * s^2}}{E}]^2$

=> $n = [\frac{1.96 * 1.5}{0.49} ]^2$

=> $n = 36$

6 0

3 years ago

8 7 / 8 + 9 13 / 16 what is this in a mixed number.

FinnZ [79.3K]

Answer:

18 and 11/16

Step-by-step explanation:

I converted the two numbers into improper fractions which leaves me with

71/8+157/16

I thenn made sure I had common denominators, which means I need to multiply the first number by 2/2 and I'm left with:

142/16+157/16

I can now add the 2 numbers together and I get:

299/16

now we just need to convert the number into a mixed number by dividing, and I am left with:

18 and 11/16

5 0

2 years ago

Help Link (little green guy on the left) defeat Ganon and save Zelda. Find the distance from Link to the Green Soldier so Link c

kenny6666 [7]

Answer:

5 Units.

Step-by-step explanation:

In the attached diagram, Link is at (0,1) and Ganon is at (4,4)

To find the distance between the two, we use the distance formula $Distance=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

$(x_1,y_1)=(0,1), (x_2,y_2)=(4,4)$

Distance between Link and Ganon $=\sqrt{(4-0)^2+(4-1)^2}$

$=\sqrt{4^2+3^2}\\=\sqrt{16+9}\\=\sqrt{25}$

=5 Units

The distance between the two is 5 Units.

3 0

3 years ago

What are the 7 wonders of the world

umka21 [38]

1. Great Pyramid of Giza.
2. Hanging Gardens of Babylon.
3. Statue of Zeus at Olympia.
4. Temple of Artemis.
5. Mausoleum at Halicarnassus.
6. Colossus of Rhodes.
7.Lighthouse of Alexandria.

hope that i helped!

4 0

3 years ago