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nevsk [136]
2 years ago
7

Please help me and fast

Mathematics
1 answer:
Nitella [24]2 years ago
8 0
1. c
2. b
3. d

these should be correct
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What is f(x)=2x^2+3x+7 is x=-5
Mice21 [21]
F(-5) = 2(-5)² + 3(-5) + 7
f(-5) = 2(25) - 15 + 7
f(-5) = 50 - 8
f(-5) = 42
4 0
3 years ago
While exercising, a person's recommended target heart rate is a function of age. The recommended number of beats per minute, y ,
inysia [295]

Answer:

174.25

Step-by-step explanation:

To solve this equation I will assume you are 15 as this is a High School level problem.

1. Plug in 15 for x

-.85*15+187

2. Solve

-.85*15=-12.75

-12.75+187=174.25

4 0
2 years ago
34 days to 2 weeks the ratio is
swat32
First you have to make the units same. it will be easier if you make both the units to be days.
2 weeks= 14days
ratio will be
34:14

if you can make it into simpler form, then make it. this answer can simplified into smaller form,thus,
34:14
17:7

the answer is 17:7
5 0
3 years ago
mrs jacobson asks each group of students to write an expression equivalent to the model shown. which group is incorrect expressi
madreJ [45]
Where is the model. To answer I need the model.
8 0
3 years ago
Every one reading this please help! I don't understand this and I will give brainliest to the person that helps first with a goo
stira [4]
Since the area of the poster doesn't change by putting it in a frame, we presume the question is asking what the area of the framed poster is.

The length of the poster in its frame is ...
  (frame width on one side) + (poster length) + (frame width on the other side)
  2 in + 32 in + 2 in = 36 in

Likewise, the width of the poster in its frame is ...
  2 in + 24 in + 2 in = 28 in

The area of a rectangle 36 in by 28 in is the product of these dimensions:
  Area = (36 in)×(28 in) = (36×28) in² = 1008 in²
6 0
3 years ago
Read 2 more answers
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