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hram777 [196]
3 years ago
15

Add or subtract as indicated.

Mathematics
1 answer:
Bas_tet [7]3 years ago
7 0
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it's a week before the maths festival a maths exhibition costa £75.40 and so far 12 have been bought. what's the total income so
motikmotik
£75.40*12= £904.80


A quick multiplication
6 0
3 years ago
Complete the sentence.<br><br> Forty-five percent of 120 is <br> .
Law Incorporation [45]

Answer:

54

Step-by-step explanation:

45% * 120 = 54

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2 years ago
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The height of a rocket, launched from the ground, is given by the function y = 30t - 5t^2, where y is in meters and t is in seco
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Answer:Rocket Launch A toy rocket is launched straight up in the air from level ground. The distance (in ft) the rocket is above the ground (the position function) is <em>f (t) = 170t -16t2 at any time t (in sec) . Find </em>

Step-by-step explanation:

7 0
2 years ago
HELP ASAP : Find the largest value of n such that 5x^2+nx+48 can be factored as the product of two linear factors with integer c
Anna71 [15]

Answer:

n=241

Step-by-step explanation:

We are given

5x^2+nx+48

Let's assume it can be factored as

5x^2+nx+48=(5x-s)(x-r)

now, we can multiply right side

and then we can compare it

5x^2+nx+48=5x^2-5rx-sx+rs

5x^2+nx+48=5x^2-(5r+s)x+rs

now, we can compare coefficients

rs=48

5r+s=-n

n=-(5r+s)

now, we can find all possible factors of 48

and then we can assume possible prime factors of 48

48=-+(1\times 48)

48=-+(2\times 24)

48=-+(3\times 16)

48=-+(4\times 12)

48=-+(6\times 8)

Since, we have to find the largest value of n

So, we will get consider larger value of r because of 5r

and because n is negative of 5r+s

so, we will both n and r as negative

So, we can assume

r=-48 and s=-1

so, we get

n=-(5\times -48-1)

n=241


7 0
3 years ago
Consider these three numbers written in scientific notation: 6.5 × 103, 5.5 × 105, and 1.1×103. Which number is the greatest, an
Tasya [4]
Assuming 6.5×10^3    5.5×10^5    1.1×10^3
are in scientific notation.
6500
550000
1100

are the choices without scientific notation.
so by looking at this you can assume (E) is the right answer

(E) <span>The greatest number is 5.5 × 105. It is 5,000 times greater than the smallest number.</span>
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3 years ago
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