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3 years ago

True or false? If two triangles can be moved so that they line up perfectly, they are congruent.

Mathematics

2 answers:

zavuch27 [327]3 years ago

7 0

Answer:

that is false i would be parallel if they lined up perfectly

Rudik [331]3 years ago

6 0

Answer :

True

Step by step explanation :

If two objects or figures have the same shape and size they are congruent.

Also if one has same shape and size as the other one's mirror image, they are also considered to be congruent

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A botanist wishes to estimate the typical number of seeds for a certain fruit. She samples 48 specimens and counts the number of

baherus [9]

Answer: The open interval would be (31.4,42.5).

Step-by-step explanation:

Since we have given that

mean = 36.9

Standard deviation = 16.5

n = 48

At 98% confidence interval, z = 2.33

So, Interval would be

$\bar{x}\pm z\dfrac{\sigma}{\sqrt{n}}\\\\=36.9\pm 2.33\dfrac{16.5}{\sqrt{48}}\\\\=36.9\pm 5.549\\\\=(36.9-5.5,36.9+5.6\\\\=(31.4,42.5)$

Hence, the open interval would be (31.4,42.5).

5 0

3 years ago

If 9^(2x-1)=81^(x-2)/3^x find x

notsponge [240]

The answer is to your question is x=-6

8 0

2 years ago

Create and Solve an equation to find the unknown angle.

valentina_108 [34]

Answer:

Equation: 2x + 3x + 10 = 180

x = 34

Top angle = 68 degrees

Bottom angle = 112 degrees

Step-by-step explanation:

The two angles add to 180, so set them equal to 180.

2x + 3x + 10 = 180

5x + 10 = 180

- 10 - 10

5x = 170

/ 5 / 5

x = 34

Plug x into angles,

2(34) = 68

3(34) + 10 = 112

8 0

2 years ago

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if a person weighs 150 lb. bicycles at 10 mph for 1 minute and loses 8.1 calories, how many calories would they lose in 1 hour?

Nookie1986 [14]

Answer:

the answer will be 486 calories

Step-by-step explanation:

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3 years ago

What is the surface area of the rectangular pyramid shown? 59.5 cm2 63 cm2 75.5 cm2 99 cm2

arsen [322]

Answer:

Option D.

Step-by-step explanation:

In this question figure of pyramid is attached below the question .

Surface area of the rectangular pyramid :

Area of the Base = Length × Width

= 10 × 2 = 20 cm²

Area of Lateral #1 = $\frac{1}{2}(P)(L)$

= $\frac{1}{2}(10\times6.3)$

= 31.5 cm²

Area of Lateral #2 = $\frac{1}{2}(8\times 2)$

= $\frac{16}{2}$

= 8 cm²

Surface area of the pyramid = 20 + 2(31.5) + 2(8)

= 20 + 63 + 16

= 99 cm²

Surface area of the pyramid is 99 cm²

7 0

3 years ago

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