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mina [271]
3 years ago
13

Evaluate the function. Evaluate the function f(x) = –x^2+10x-2 find f(-5)

Mathematics
1 answer:
Ugo [173]3 years ago
6 0

Answer:

-77

Step-by-step explanation:

-(-5)^2+10(-5)-2=

-25-50-2=-77

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A scientist studying earth's rotation determines that a specific location on earth's equator travels about 40,000 kilometers in
Mama L [17]

Answer:

Step-by-step explanation:

Discussion

The first thing you have to do is convert km to miles

Formula

1 mile = 1.6 km

x mile = 40000 km              Cross Multiply

Solution

1.6*x = 1 * 40000                  Divide by 1.6

x = 40000/1.6

x = 25000 miles

             

Answer Part 1

The distance covered is 25000 miles

Discussion Part 2

That's the distance covered in a day. Now we need to convert that to speed. The time (in hours) for 1 day is 24 hours.

Givens

d = 25000 miles

t = 24 hours

s = ?

Solution

s = d/t

s = 25000 / 24

s = <u>1041.66 </u> miles per hour

Answer: 1041.66 is what is to be entered as your answer

7 0
2 years ago
A plastic lime juice container in the shape of a sphere has a diameter of 4 cm.
Mnenie [13.5K]
Vsphere=(4/3)pir³

d/2=r
given
d=4
d/2=r=4/2=2

Vsphere=(4/3)pi2³
Vsphere=(4/3)pi8
Vsphere=32/3pi
using pi=3.14
Vsphere=33.493333333333 cm³
round
Vsphere=33 cm³
3 0
3 years ago
What is fourteen plus fourteen
Annette [7]

Answer:

28

Step-by-step explanation:

14 + 14 = 28

7 0
4 years ago
Read 2 more answers
Help me please<br> ............................
denpristay [2]

Answer:

3/2

Step-by-step explanation:

4 0
3 years ago
A powdered drink mix is stored in a cylindrical container that has a radius of 6 centimeters and a height of 14 centimeters. Whi
sladkih [1.3K]
V=area of base times height
height=height
area of base=area of circle=pir^2
V=hpir^2
r=6
h=14

V=14pi6^2
V=14pi36
V=504pi
aprox pi=3.141592
V=1583.3 round
V=1583 cm^3
8 0
3 years ago
Read 2 more answers
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