All categories

3 years ago

If the value of b is 7, then what is the value of the expression -3b2 + 25 = ? A. 122 B. –122 C. 172 D. 17

2 answers:

8 0

We first need to substitute in the value of b, which is 7.

$-3(7)^2 + 25 \\ \\ -3 \times 49 + 25 \\ \\ -147 + 25 \\ \\ -122 \\ \\$

The final result is, B) -122.

mr_godi [17]3 years ago

5 0

-3 × 39 + 25
-147 + 25
=
-122

So this means your answer would be: B. -122

You might be interested in

Which is a rule that describes the translation of a point from 4, -8 to 7, -10

Alexxandr [17]

Answer:

$\large\boxed{(x,\ y)\to (x+3,\ y-2)}$

Step-by-step explanation:

$(4,\ -8)\to(7,\ -10)\\\\4\to7\Rightarrow4+3=7\\\\-8\to-10\Rightarrow-8-2=-10\\\\\text{Conclusion}\\\\(x,\ y)\to (x+3,\ y-2)$

4 0

2 years ago

Read 2 more answers

A snowmobile traveled 32 miles in 2 1/3 hours.

sergey [27]

Answer:

13.7 mph

Step-by-step explanation:

d = st

<u>Given</u>:

d = 32 miles
t = 2 1/3 hr = 7/3 hr

s = d/t
s = 32÷7/3 = 32 × 3/7 = 96/7 ≈ 13.7 mph (rounded)

4 0

2 years ago

Which of the binomials below is a factor of this trinomial?

8_murik_8 [283]

Answer:

C. x - 4

Step-by-step explanation:

The best way to do this is to first take out GCF

6(x² - x - 12)

Then we factor

6(x - 4)(x + 3)

We can now see our answer.

8 0

3 years ago

Read 2 more answers

What does x stand for in 4+x=3x

Irina18 [472]

x stands for a variable, in which the variable would be replaced by a number(s) that would make the equation true.

Hope this helps

7 0

3 years ago

How do the values of the 1s in 14.937 and 6.1225 compare?

elena-s [515]

Answer:

i dont now

Step-by-step explanation:

3 0

3 years ago