MATHEMATICS MIDDLE SCHOOL

Which value of a solves the equation

a^-2 = 1/100

Answers

Answer 1
Answer:

Answer:

a = 10 or a = -10

Step-by-step explanation:

a^-2 = 1/100

We know 100 = 10^2

a^-2 = 1/10^2

We know 1/b^c = b^-c

1/a^2 = 1/ 10^2

Multiply by a^2 on each side

a^2 *1/a^2 = 1/ 10^2 *a^2

1 = a^2/10^2

Multiply by 10^2 on each side

1 0^2= a^2/10^2 * 10^2

10^2 = a^2

Take the square root of each side

sqrt(10^2) = sqrt(a^2)

±10 =a

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Integer equation carl owed his mom $27

Answers

Since Carl owes his mom, it's a negative number -$27

Answer:

It would be a negative number since he owes his mom that much money so -27.

Hope this helps!

Need help with this question please:

Answers

Answer:

If the data is collected in a biased manner, or the number of observations is too small, the graph could be skewed. To ensure the data is not skewed, collect a large representative unbiased sample. Hope this helps

Step-by-step explanation:

A 4-pound bag of sugar contains 454 one-teaspoon servings and costs $3.49. A batch of muffins uses 1/4 cup of sugar. How many batches can you make if you use all the sugar? What is the cost of sugar for each batch? (1 cup = 48 teaspoons)

Answers

48/4 = 12 teaspoons per each batch

454/12 = 37.83 batches can be made

3.49/37.83 = 0.092$ per each batch

Describe a sequence of transformations that shows that Polygon A is congruent to Polygon B. Please answer all below

Answers

5. shape A is rotated 180d around the axis
what in the world is this- omg k need friends but hiii

9x-6=8 ??¿????c?????????????????????????????????????????

Answers

Solve : 9x-14 = 0

Add 14 to both sides of the equation
9x = 14
Divide both sides of the equation by 9:
x = 14/9


9x = 8 + 6;
9x = 14;
x = 14 ÷ 9;
x = 1.55 ;

4² +6²=X²
what is X? ​

Answers

Answer:

52

Step-by-step explanation:

4*4+6*6= 16+36= 52
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