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mixer [17]
3 years ago
13

Given f(x) =2x^2 - 3x+ 7, find (2.5)​

Mathematics
1 answer:
BigorU [14]3 years ago
7 0

Answer: 12

Step-by-step explanation:

f(2.5) = 2 x (2.5)^2 - 3 x 2.5 + 7

= 2 x 6.25 - 7.5 + 7

= 12.5 -7.5 + 7

= 5 + 7

= 12

Hope this helps!

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Jason deposited $280 into a bank account paying 2.5% simple annual interest. At this simple interest rate, about how much would
iren [92.7K]

Answer:

Jason will have earned $35 in simple interest.

Step-by-step explanation:

Simple interest = Principal *rate *time

S.I = P * r * t

Principal = the amount deposited = $280

rate = 2.5%

time = 5 years

S.I = 280 *2.5% *5

S.I = 7*5

S.I = $35

Therefore, in 5 years, Jason will have earned $35 in simple interest.

6 0
3 years ago
What’s the answer to the question mark
melamori03 [73]

The missing number is 20

<h3>How to determine the number</h3>

We can see that the values at the top must be made equal to that at the bottom

For the top, we have

30 + 11 = 41

For the bottom, we should have:

21 + x = 41

Now, let's solve for 'x' to determine the missing figure;

21 + x = 41

collect like terms

x = 41 - 21

x = 20

Thus, the missing number is 20

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6 0
2 years ago
Please help. You will get some points.
Sergio039 [100]

Answer:

okay

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Select all angles that have a cosine of 3/5.
balandron [24]

Step-by-step explanation:

Given

Two similar triangles i.e. \trianle ABC \ \text{and}\ \triangle A'B'C'

from the figure, In \triangle ABC

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Also, In \triangle A'B'C'

\Rightarrow \cos \alpha =\dfrac{A'C'}{A'B'}=\dfrac{6}{10}=\dfrac{3}{5}

3 0
3 years ago
Ieda bakes 73 cupcakes and accidentally drops 5 of them. She divides them equally into 13 containers for a bake sale for the sch
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3 cupcakes:
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3 years ago
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