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Anastaziya [24]
3 years ago
9

Let u=(5 -12) and c=-3 what is cu? a)39 b)-39 c)21 d)51

Mathematics
2 answers:
Ivan3 years ago
7 0
Parentheses first
5-12. = -7
-7 *-3= 21
hjlf3 years ago
5 0

Answer:

C) 21

Step-by-step explanation:

5-12=-7

cu=(-3)(-7)=21

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2.2.6

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3 years ago
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MaRussiya [10]

Answer:

120

Step-by-step explanation:

the answer yOU are looking for would be 120

8 0
3 years ago
Pls help I will not let me add the screenshot so I'm going to try and explain. so there is a rectangle the top measures 10m and
-BARSIC- [3]
Answer:

£23

Explanation:

6x10=60
2x1.5=3
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3 0
3 years ago
The second step in the process for factoring the trinomial is to:
emmainna [20.7K]
Example:  <span>the second step in the process for factoring the trinomial x^2-3x-40 is to:</span> <span>Well you really should find the sum of the factors of −40 (not 40) </span>
<span>But before you can do that, you need to LIST the factors of −40 (not 40) </span>
<span>−1 * 40 </span>
<span>−2 * 20 </span>
<span>−4 * 10 </span>
<span>−5 * 8 </span>
<span>−8 * 5 </span>
<span>−10 * 4 </span>
<span>−20 * 2 </span>
<span>−40 * 1 </span>

<span>NOW we find the sum of the factors of −40 </span>
<span>−1 + 40 = 39 </span>
<span>−2 + 20 = 18 </span>
<span>−4 + 10 = 6 </span>
<span>−5 + 8 = 3 </span>
<span>−8 + 5 = −3 </span>
<span>−10 + 4 = −6 </span>
<span>−20 + 2 = −18 </span>
<span>−40 + 1 = −39 </span>

<span>Then we choose the factors of −40 whose sum is −3 ---> −8 and 5 </span>
<span>x^2 − 3x − 40 = (x − 8) (x + 5) </span>

<span>So FIRST step is B, SECOND step is C, and final step is factoring. </span>
What Rita did was combine these 2 steps together, which you will learn to do as you get better at factoring.
8 0
3 years ago
a train is traveling from New Orleans to Memphis at a constant speed of 79 miles per hour.New Orleans and Memphis are 395.1 mile
alexdok [17]
Just use the formula time = distance / speed

395.1/79= 5.001

It will take the train approximately five hours to reach Memphis
5 0
3 years ago
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