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3 years ago

HELP! 10 PPPPPPOOOOOIINNNNNNTSS!! :)

Mathematics

2 answers:

balandron [24]3 years ago

6 0

#1 is 2 X 10 to the 4th power

#2 is America because America has 20,000 a year and UK has 10,000 a year. The difference between them is 10,000 kilograms a year

gayaneshka [121]3 years ago

3 0

2x10^4
1X10^4<2X10^4
by 1X10^4

You might be interested in

Factor the GCF: −12x4y − 9x3y2 + 3x2y3

monitta

Factor the coefficients:
-12=(-1)(3)(2^2)
-9=(-1)(3^2)
3=3

The greatest common factor (GCF) is 3

Next we find the GCF for the variable x.
x^4
x^3
x^2
The GCF is x^2.

Next GCF for variable y.
y
y^2
y^3
the GCF is y

Therefore the GCF is 3x^2y
To factor this out, we need to divide each term by the GCF,
(3x^2y)(−12x4y/(3x^2y) − 9x3y2/(3x^2y) + 3x2y3/(3x^2y) )
=(3x^2y)(-4x^2-3xy+y^2)
if we wish, we can factor further:
(3x^2y)(y-4x)(x+y)

3 0

3 years ago

Divide R300 000 between Leona and Janet in the ratio 3:2.

ella [17]

Answer:

let the ratio be in x 

a/q. 3x + 2x = 300000

 5x = 300000

x = 300000/5

x= 60000

Leona = 60000*3 = 180000

Janet = 60000*2 = 120000

hope it helps

5 0

2 years ago

What do you call the number that you divide by?

skelet666 [1.2K]

Answer:

the number that you divide by is called the dividend and the number which the dividend is being divided by is the divisor.

7 0

2 years ago

the half-life of strontium-90 is approximately 29 years. how much of a 500 g sample of strontium-90 will remain after 58 years

Yuliya22 [10]

Answer: 125 g

Step-by-step explanation:

$A = P_o\cdot e^{kt}\\\\\text{First, use the given information to find k:}\\\\\bullet A=\dfrac{1}{2}P_o\\\\\bullet k = unknown\\\\\bullet t=29\text{ years}\\\\\dfrac{1}{2}P_o=P_o\cdot e^{k(29)}\\\\\\\dfrac{1}{2}=e^{k(29)}\qquad divided\ both\ sides\ by\ P_o\\\\\\ln\bigg(\dfrac{1}{2}\bigg)=ln\bigg(e^{k(29)}\bigg)\qquad applied\ ln\ to\ both\ sides\\\\\\ln\bigg(\dfrac{1}{2}\bigg)=29k\qquad simplified-ln\ and\ e\ cancel\ out\\\\\\\dfrac{ln\bigg(\dfrac{1}{2}\bigg)}{29}=k\qquad divided\ 29\ from\ both\ sides\\\\\\-0.0239=k$

$\text{Now, use the following in the equation to solve for A:}\\\\\bullet A=unknown\\\bullet P_o=500\\\bullet k=-0.0239\\\bullet t=58\text{ years}\\\\A=500\cdot e^{(-0.0239)(58)}\\\\.\quad=500\cdot e^{-1.386}\\\\.\quad=125$

8 0

3 years ago

Sixty-one diminished by ten x. Answer: _______________________ . The product of twice a number k. Answer: ______________________

KengaRu [80]

Answer:

61 - 10x

42 / 6 = 7

38 + 2m

3y - 6

Step-by-step explanation:

A. Sixty-one diminished by ten x

= 61 - 10x

B. The product of twice a number k

= 2 * k

= 2k

C. The quotient of forty-two and six is seven

42 / 6 = 7

D. Twice the total of nineteen and a number m.

= 2(19 + m)

= 38 + 2m

E. Six less than 3 times y

3y - 6

6 0

2 years ago