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aev [14]
3 years ago
8

40% of what number is 74?

Mathematics
2 answers:
SOVA2 [1]3 years ago
6 0

Answer:

185

Step-by-step explanation:

hope this helps

user100 [1]3 years ago
5 0

Answer:

185

Step-by-step explanation:

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WILL MARK BRAINLEIST!! Each figure is composed of large squares and small squares. The side length of the
julsineya [31]

9514 1404 393

Answer:

  A. x² -4

  B. 2x² +8

Step-by-step explanation:

The area of a square is the square of the side lengths. That means the area of each large square is x², since it has a side length of x.

__

A. The area of 4 small squares is subtracted from the area of the large square to find the shaded area:

  x² -4×1² = x² -4 . . . area of Figure A

__

B. The area of two small squares is added to the area of two large squares to find the shaded area:

  2x² +2×2² = 2x² +8 . . . area of Figure B

5 0
3 years ago
-26 times a number minus 22 is equal to 90 less than the number.
IgorLugansk [536]

Answer:

x = \frac{68}{27}

Step-by-step explanation:

Let x be the number

  1. Write it out: -26x - 22 = x - 90
  2. Combine like terms: -27x + 68 = 0
  3. Subtract 68 from each side, so it now looks like this: -27x = -68
  4. Divide each side by -27 to cancel out the -27 next to x. It should now look like this: x = \frac{68}{27}  

I hope this helps!

6 0
3 years ago
given matrix A is 2x3 matrix, matrix C is a 2x1 matrix and A x B = C. what are the demensions of matrix B?
nikitadnepr [17]

Answer:

L×W=A 6 x 2 =12

Step-by-step explanation:

length ×weight =area example:you need to measure a full sheet pan and let's say if it is 8 full sheet pan you weighs 23 so you want to multiply 8×23=184 that is your area okay 2×3=6 and 2×1=2 so to figure out the area multiply 6×2=12 so the answer is matrix B just remember length times weight equal areas

4 0
3 years ago
Read 2 more answers
What is the slope intercept form of the function that contains the point (6,2) and has a slope of 3?
skelet666 [1.2K]
You can plug in the numbers like 2=3(6) + b then rearrange for b so 2-18=b so the answer to your question is y=3x-16
4 0
3 years ago
Read 2 more answers
Bart believes that mice exposed to microwaves will become extra strong (maybe he's been reading too much Radioactive Man). He de
OverLord2011 [107]

Complete question is;

Bart believes that mice exposed to microwaves will become extra strong (maybe he's been reading too much Radioactive Man). He decides to perform this experiment by placing 10 mice in a microwave for 10 seconds. He compared these 10 mice to another 10 mice that had not been exposed. His test consisted of a heavy block of wood that blocked the mouse food. He found that 8 out of 10 of the microwaved mice were able to push the block out of the way. 7 out of 10 of the non-microwaved mice were able to do the same.

Identify the following;

1) Control group

2) Independent variable

3) Dependent variable

4) What should bart's conclusion be?

5) How could Bart's experiment be improved?

Answer:

1) Mice not exposed to the microwave.

2) Amount of microwave radiation hitting the mice.

3) The strength of the mice exposed to the radiation.

4) Conclusion should be inconclusive.

5) Can be improved in 3 ways listed under explanation.

Step-by-step explanation:

1) The control group is the mice that were not exposed to the microwave heating. This is because a control group is a set of samples that are kept separate and not exposed to the independent variable.

2) The independent variable is the cause of the research. So in this case the independent variable is the amount of microwave radiation because the study is on how mice exposed to microwaves become extra strong.

3) Dependent variable: The dependent variable will be the strength of the mice that are exposed to the microwave radiation because the extra amount of strength depends on the radiation.

4) Bart's conclusion should be Inconclusive because even though there is difference in the results gotten from the exposure, they are not that significantly different and thus we can say that there is an equal chance of an effect or no effect.

5) Bart's experiment can be improved by the following;

- Using a larger sample size

- Increasing the amount of groups so as to have a varied amount of microwave radiation received by the exposed mice

- Increasing the mass of the block that's in front of the food.

4 0
3 years ago
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