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Elenna [48]
2 years ago
10

Geometry, dont need explanation. Just those 3 questions.

Mathematics
1 answer:
Aloiza [94]2 years ago
6 0

Answer:

1. B

2. A

3. C

Step-by-step explanation:

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Which of the following is a true statement about functions?
olga2289 [7]
The correct answer would be Choice D.

In this problem, the only change that was made was the order that you added the functions F and G. Since addition is commutative, we can reverse the order of the numbers being added without changing the problem.
5 0
3 years ago
PLEASE HURRY! will give brainliest (pls include an explanation if possible)
never [62]

Answer:

Yes, it is a right triangle

Step-by-step explanation:

7 0
2 years ago
The focal lengths of the objective lens and the eyepiece of a microscope are 0.50 cm and 2.0 cm, respectively, and their separat
VladimirAG [237]

Answer:

- 103.7

Step-by-step explanation:

Given:

Focal length of the eyepiece, f = 2.0 cm

Focal length of the objective lens, f' = 0.50 cm

Separation for minimum eyestrain = 6,0 cm

Image distance, v = - 25 cm

Now, from the lens formula,

\frac{1}{f}=\frac{1}{u}+\frac{1}{v}

here, u is the object distance

on substituting the respective values, we get

\frac{1}{2}=\frac{1}{u}+\frac{1}{-25}

or

u = 1.852 cm

also, the separation is adjusted for minimum eyestrain,

therefore, image distance for the objective lens, v' = 6 - 1.852 = 4.148 cm

Now, for the objective lens

using the lens formula, we get

\frac{1}{0.5}=\frac{1}{u'}+\frac{1}{4.418}

Here, u' is the distance between the physical object and objective lens

or

u' = 0.568 cm

Thus,

Magnification, m = -\frac{vv'}{ff'}

or

m =-\frac{25\times4.418}{0.5\times2}

or

m = - 103.7

4 0
3 years ago
Tell whether –4 is a solution of the inequality.<br> —3x + 2 &lt; 15. YES OR NO?
NikAS [45]

Answer:

YES

Step-by-step explanation:

-3 times -4 = 12

12 + 2 = 14

14 < 15

7 0
3 years ago
Four and one-half minus three and five-eighths
Leni [432]
4 1/2-3 5/8=0.875 or 875/1000 or 35/40 or 7/8
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3 years ago
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