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3 years ago

Please help and thank you

Mathematics

1 answer:

Anna11 [10]3 years ago

3 0

2 servings because one serving is 4%, so you would need would need to double that, or multiply it by two.

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Pleaseeeeeeeeeeeeeeeeeee help

NikAS [45]

Answer:

2x-7

-14

x = 1

Step-by-step explanation:

4 0

3 years ago

O is the center of both circles containing arcs AB and CD

victus00 [196]

Answer:

Step-by-step explanation:

You need to solve the area sector of the bigger circle. Since we now the length of sector is 270, we can set up an equation.

Length of sector DC = 2 $\pi$ r

270 = 2 $\pi$ (8+OA) *(8+OA is the raidus of the bigger circle/sector)*

270/2 $\pi$ = 8 + OA (division)

135/ $\pi$ -8 = OA

135/ $\pi$ -8 = OB (because OA and OB are the raidus of the same circle, so they are congruent)

I hope this helps you! Please correct me if you see a miscalculation <3<3

5 0

2 years ago

1. Ali's health club membership costs $19.95 per

shusha [124]

Answer:

10 visits tops

Step-by-step explanation:

50- 19.95= 30.05

30.05/2.75= 10.9 which means 10 times.

8 0

3 years ago

Half-life of Po-210 is 140 days. If the initial mass of the sample is 5

Anna35 [415]

Answer:

$0.625kg$

Step-by-step explanation:

we are given half-life of PO-210 and the initial mass

we want to figure out the remaining mass after 420 days

in order to solve so we can consider the half-life formula given by

$\displaystyle f(t) = a {0.5}^{t/T}$

where:

f(t) is the remaining quantity of a substance after time t has elapsed.
a is the initial quantity of this substance.
T is the half-life

since it halves every 140 days our T is 140 and t is 420. as the initial mass of the sample is 5 our a is 5

thus substitute:

$\displaystyle f(420)=5\cdot{0.5}^{420/140}$

reduce fraction:

$\displaystyle f(420)=5\cdot{0.5}^{3}$

By using calculator we acquire:

$\displaystyle f(420)=0.625$

hence, the remaining sample after 420 days is 0.625 kg

4 0

3 years ago

Distance between (-3, 4/11) and (3, 4/11)

ELEN [110]

Answer:

Step-by-step explanation:

3 0

3 years ago