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Rudik [331]
2 years ago
8

Please help do not answer if u don't know the answer

Mathematics
1 answer:
Kisachek [45]2 years ago
8 0

Answer:

C

Step-by-step explanation:

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Leah drives 45 miles per hour for 2 hours then 32 miles per hour for 90 minutes . What is her average speed
Citrus2011 [14]

Answer:

 =39.42857143 miles per hour

Step-by-step explanation:

To find the average speed, we need to the total distance and the total time

Distance 1

45 miles for 2 hours

45*2 = 90 miles

Distance 2

90 minutes * 1 hour/60 minutes = 1.5 hours

32 miles * 1.5 hours =48 miles

The total distance = 90+48 = 138 miles

The total time = 2 +1.5 = 3.5 hour

The average speed = total distance/ total time

                                  = 138/3.5

                                  =39.42857143 miles per hour

3 0
3 years ago
Read 2 more answers
I need help so I can pass this plz ASAP
4vir4ik [10]

Answer:

-5

Step-by-step explanation:

3 0
3 years ago
Which of the following is an odd function??
Novay_Z [31]

Answer:

f(x)=5x^2 + 9

Step-by-step explanation:

all numbers are odd

6 0
2 years ago
-2x-9y=-25 4x+9y=23<br><br><br><br> Help me
Tatiana [17]
X=25/11 and y=17/11 if that’s what your asking for
6 0
2 years ago
Type the correct answer in the box. Use numerals instead of words. If necessary, use / for the fraction bar.
sashaice [31]

Answer:

k = –10

Step-by-step explanation:

From the question given above, the following data were obtained:

f(x) = x³ – 6x² – 11x + k

Factor => x + 2

Value of K =?

Next, we shall obtained the value of x from x + 2. This is illustrated below:

x + 2 = 0

Collect like terms

x = 0 – 2

x = –2

Finally, we shall determine the value of k as illustrated below:

f(x) = x³ – 6x² – 11x + k

x = –2

Thus,

f(–2) = 0

x³ – 6x² – 11x + k = 0

(–2)³ – (–2)² – 11(–2) + k = 0

–8 – (4) + 22 + K = 0

–8 – 4 + 22 + K = 0

10 + k = 0

Collect like terms

k = 0 – 10

k = –10

Thus, the value of k is –10

7 0
3 years ago
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