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Oliga [24]
3 years ago
11

Evaluate the expression 4ab; if a = 2 and b = 5

Mathematics
1 answer:
yulyashka [42]3 years ago
5 0

Answer:

40

Step-by-step explanation:

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If a1=10 and an=an-1+4 then find the value of a5
tamaranim1 [39]

Answer:

26

Step-by-step explanation:

Each term is the previous with 4 added to it.

a1 = 10, a2 = 14, a3 = 18, a4 = 22, a5 = 26

3 0
3 years ago
a water balloon is tossed into the air with an upward velocity of 25 ft/s its height h(t) in ft after t seconds is given by the
Montano1993 [528]
When the height is 0 that is when it hits the ground
solve
0=-16t²+25x+3
cant factor so use quadratic formula

for
0=ax²+bx+c
x=\frac{-b+/-\sqrt{b^2-4ac}}{2a}

so for
0=-16t²+25t+3
a=-16
b=25
c=3
so

x=\frac{-25+/-\sqrt{25^2-4(-16)(3)}}{2(-16)}
x=\frac{-25+/-\frac{625+192}}{-32}
x=\frac{-25+/-\frac{817}}{-32}
it has to be a positive time

so it will hit the ground after \frac{25+\sqrt{817}}{32} seconds
4 0
3 years ago
What acronym is used for sine , cosine and tangent
sergejj [24]

Answer:

SOHCAHTOA.

Step-by-step explanation:

acronym is an abbreviation formed from the initial letters of other words and pronounced as a word

The acronym for sin cosine and tangent is

SOHCAHTOA

Sine =Opposite over Hypotenuse

Cosine= Adjacent over Hypotenuse

Tangent= Opposite over Adjacent

8 0
3 years ago
Mrs. lama marked a price of a cosmetic item 25% above it's cost price. if the cost price of the cosmetic item was 4400, at what
Alexeev081 [22]

Answer:

hi dear I suppose the answer would be 6271$

3 0
2 years ago
Midpoint of the line with endpoints of (-1,2) and (7,3)
cricket20 [7]
To find the mid point you must

x = (x1 + x2) / 2
y = (y1 + y2) / 2

(3,2.5)
7 0
3 years ago
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