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Archy [21]
2 years ago
14

Enter values for a and b so that the system of equations shown has infinitely many solutions.

Mathematics
1 answer:
Fynjy0 [20]2 years ago
3 0

Answer:

-2 1

Step-by-step explanation:

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Which set of side lengths can form a triangle? a 6cm, 8cm, 18cm b 6cm, 8cm, 10cm c 6cm, 7cm, 14cm d 6cm, 7cm, 20cm
kogti [31]
Sum of two sides can not be smaller than third side and difference of two sides cannot be larger then third side.

Answer is B.
7 0
3 years ago
Read 2 more answers
PLEASEEEEE HELP WILL MARK BRAINLIEST!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
goldenfox [79]

Answer:

the scale factor is 1/4 because the big one has four squares on the bottom so it's four times as big

4 0
2 years ago
1/4 divided by 5/6 = 1/a× b/c
motikmotik

Answer:

a= 24b/5c b= 5ac/24 c= 24b/5a

Step-by-step explanation:

Put the problem into a calculator that can solve with variables.

8 0
2 years ago
75 points. Will give certified if work is shown and the answer is correct.
Svetach [21]
Volume of the first dwarf planet (r₁ = 832 mi):

V_1=\dfrac{4}{3}\cdot\pi\cdot r_1^3=\dfrac{4}{3}\cdot\pi\cdot 832^3=\dfrac{2303721472}{3}\pi\approx7.679\cdot10^8\pi\,\text{mi}^3

Volume of the second dwarf planet (r₂ = 829 mi):

V_2=\dfrac{4}{3}\cdot\pi\cdot r_2^3=\dfrac{4}{3}\cdot\pi\cdot 829^3=\dfrac{2278891156}{3}\pi\approx7.5963\cdot10^8\pi\,\text{mi}^3

So difference between the volumes is:

V_1-V_2\approx7.679\cdot10^8\pi-7.5963\cdot10^8\pi=0.0827\cdot10^8\pi=\boxed{8270000\pi\,\text{mi}^3}

or if we want exact value (we use (a³-b³) = (a-b)(a²+ab+b²) ):

V_1-V_2=\dfrac{4}{3}\cdot\pi\cdot r_1^3-\dfrac{4}{3}\cdot\pi\cdot r_2^3=\dfrac{4}{3}\pi(r_1^3-r_2^3)=\dfrac{4}{3}\pi(832^3-829^3)=\\\\\\=\dfrac{4}{3}\pi(832-829)(832^2+832\cdot829+829^2)=\\\\\\=\dfrac{4}{3}\pi\cdot3(692224+689728+687241)=4\pi\cdot2069193=\boxed{8276772\pi\,\text{mi}^3}
3 0
2 years ago
Daniel is starting his own sewing business. Daniel has calculated that he needs to earn $360 per week to support his family. If
Anna007 [38]

Answer:

$12 the hour

Step-by-step explanation: $360 divided by 30 is 12, meaning he will need to make a minimum of 12 an hour to support his family.

4 0
3 years ago
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