175 meters, since its below sea level it would be- -400m - (-225m), subtracting with negative # and negative # is the equivalent of getting closer to zero, just figure out 400 - 225, and put a - symbol at the beginning of the number

4 0

3 years ago

PLZ HELP ME QUICKLY! Replace the power with a product and then transform the product into a polynomial. (3a-1)^2

aniked [119]

Answer:

Product: $(3a-1)(3a-1)$

Polynomial: $9a^{2} -6a+1$

Step-by-step explanation:

$(3a-1)^{2}$ is equal to $(3a-1)(3a-1)$ . Then, expand it using the distributive property to get $9a^{2} -3a-3a+1$ which, simplified is $9a^{2} -6a+1$ .

Hope this helps :)

5 0

3 years ago

17. Tonya's mother is 1.5 times as tall as

andrew-mc [135]

The question is incomplete:

17. Tonya's mother is 1.5 times as tall as Tonya was when she was 6. How tall is Tonya's mother? Use the correct number of significant digits.

The image with the information about Tonya's height is attached.

Answer:

68 in.

Step-by-step explanation:

According to the information given, you can write the following expression:

x=1.5y

x=Tonya's mother height

y= Tony's height when she was 6

Also, you know from the table that Tonya's height when she was 6 was 45 in. and you can replace this value in the formula:

x=1.5*45

x=67.5

Because of this, the answer is that Tonya's mother height is 68 in.

3 0

3 years ago