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MAVERICK [17]
2 years ago
7

Tammy jumped up 9 steps. Each step was

Mathematics
2 answers:
Jlenok [28]2 years ago
7 0

Answer: 6 and 3/10 0r 63/10

Step-by-step explanation:

Fofino [41]2 years ago
3 0

Answer: 6 and 3/10

Step-by-step explanation:

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I NEED HELP ASAP PLEASE SOLVE FOR X
Marina CMI [18]
ANSWER: x = 130°

EXPLANATION: You must add given angles and then subtract from 180°.
8 0
2 years ago
What is the mass of 2.5 moles of carbon dioxide?
GarryVolchara [31]

Answer:

110 grams

Step-by-step explanation:

CO2 molecule is made up of Carbon (atomic mass =12) and oxygen (atomic mass=16).

So first finding the mass of 1 molecule of CO2 which is equals to

= mass of 1 carbon atom + masses of 2 oxygen atom, we get

= 12+(16*2)= 12+32= 44 a.m.u.

Now 1 molecule of CO2 has mass 44 amu so mass of 1 mole CO2 will be 44 grams.( 1 a.m.u.=1.6729*10^-33 grams. 1 mole = 6.022*10^23, so 44 a.m.u.=73.6076*10^-33 grams approx. For one mole CO2, 73.6076*10^-33*6.022*10^23 which is approximately equals to 44 grams. )

1 mole CO2= 44grams, so 2.5 moles = 44*2.5= 110 grams

So our answer is 110 grams.

lowkey hope this helped you, good luck whatever you need it for Imaooo

3 0
2 years ago
The equation of the parabola whose focus is at (7 0) and directrix at y=-7 is
bija089 [108]
The equation of the parabola whose focus is at (7, 0) and directrix at y = -7 is 
(x-7)^2 = 14(y + 7/2)

Hope this helps
5 0
3 years ago
Betty has $1,000 in her savings account. The interest rate is 2.5%. How much interest will Betty earn when her money has been in
V125BC [204]

Answer:

$1,075

Step-by-step explanation:

Use the formula I=PRT where I= interest, P=principle or starting amount, R=interest rate, T=time

1000*0.025*3=75

Add 75 to 1,000, 1,000+75=1,075

3 0
2 years ago
If tyler deposits $2000 of the $3200 he has earned in a account that pays 8% interest compounded quarterly. What is the formula
tester [92]
For the first quarter you would use the equation of $2000+(2000 times 0.08)=the money for the first quarter or $2160. the second quarters equation is $2000+(2000 times 0.08)2= the money for the second quarter or $2320. the thirds quarters equation is $2000+(2000 times 0.08)3= the money for the third quarter or $2480. The fourth quarters equation is $2000+(2000 times 0.08)4=the money for the fourth quarter or $2640.
5 0
3 years ago
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