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OlgaM077 [116]
3 years ago
13

Evaluate the following expression using the values given:

Mathematics
1 answer:
Sedaia [141]3 years ago
6 0
A = 3    b = 2    c = -3    we will substitute these values into the expression

-a²   - 3b³    + c²    + 2b³    - c²

-(3)² - 3(2)³ + (-3)² + 2(2)³ - (-3)²
-9 - 24 + 9 + 16 - 9
-17
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What is 2 x 1 + 2 x 24/4 help I will mark good
Irina-Kira [14]

Answer: 16

Step-by-step explanation:

We follow BIMDAS.

So it becomes :

2+2×24/4 after the first step.

Then, 4+48/4

Then, 4+12

Which is 16

7 0
3 years ago
A bit stuck on how to do this
Helen [10]

Answer:

x = 40°

Step-by-step explanation:

Two sides are the same length, so the angles opposite them are the same size.

The sum of the angles = 180°. One angle is 100°, so the sum of the remaining two angles is 80°.

Since the remaining two angles are congruent, each is 40°.

8 0
3 years ago
2) State in your own words, what relationship could be observed between the total
Alex17521 [72]

Answer:

Newton's second law of motion describes the relationship between force and acceleration. They are directly proportional. If you increase the force applied to an object, the acceleration of that object increases by the same factor. In short, force equals mass times acceleration.

8 0
3 years ago
HELP BECAUSE IM STUPID!
mixer [17]
I don't think you're stupid. ^^
Let's take the third term, 8. If n=3, then an should be 8.
The first answer gives 15+2.5*3=22.5.
The second answer gives 15.5+2.5=23.
The third answer gives 15-2.5*3=7.5.
The fourth answer gives 15.5-2.5*3=8.
Choice 4 is correct.

Let's try to actually find the equation on our own.
The equation for an arithmetic series is an=a0+dn where a0 is the term that comes before the first term.
The first term given is 13 and it decreases by 2.5 each time so n=-2.5 and the term that would be before 13 is 15.5.
Thus the equation is an=15.5-2.5n
6 0
3 years ago
Read 2 more answers
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2 years ago
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