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lesantik [10]
3 years ago
15

Which expression is equivalent to 9a + 12? (1 point)

Mathematics
2 answers:
Dima020 [189]3 years ago
4 0
C
This answer is C because 3 is the only common factor 9 and 12 have in common and when you divide each by 3 you get 3 and 4
Rainbow [258]3 years ago
3 0
C
3(3a) = 9a
3(4) = 12
3(3a +4) = 9a +12
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Write 60 as the product of two numbers
In-s [12.5K]
If you're not afraid of decimals and fractions, then there are an
infinite number of possible correct answers to this question.
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If you need to stick with positive whole numbers, then there are
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1  x  60
2  x  30
3  x  20
4  x  15
5  x  12
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7 0
3 years ago
What would be the exponent if you wrote 2,670 in scientific notation? Just write the number for your answer.
just olya [345]

Answer:

2.67 x 10^3

Step-by-step explanation

The exponent is equal to how many numbers are after the decimal point. So, since there are 3 numbers after the decimal point, the exponent would be 3. Hope this helps :)

4 0
3 years ago
Solve for g.<br>-6g – 5 + 5 = 2 – 8g
sergey [27]

Answer:

8.875

Step-by-step explanation:

The +5 and -5 cancel, so you are left with -69=2-8g. Subtract two on both sides to get -71=-8g then divide both side by -8 to get g=8.875.

6 0
3 years ago
Read 2 more answers
Someone please help with this math problem I dont get it. If you dont know the answer dont answer it please
motikmotik

Answer:

C. 6m

Step-by-step explanation:

The formula for the volume of a cone: V = πr²h/3

Use this formula to solve for the height (isolate h).

226 = (3.14)(6)²h/3 (Given)

226 = (3.14)(36)h/3 (Squared 6)

226 = 113.04h/3 (Multiplied like terms)

678 = 113.04h (Multiplied 3 on both sides)

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8 0
3 years ago
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Evaluate ∫SF⃗ ⋅dA⃗ , where F⃗ =(bx/a)i⃗ +(ay/b)j⃗ and S is the elliptic cylinder oriented away from the z-axis, and given by x2/
Norma-Jean [14]

Answer:

Therefore surface integral is \pi(a^2+b^2)c-0-0=\pi(a^2+b^2)c.

Step-by-step explanation:

Given function is,

\vec{F}=\frac{bx}{a}\uvec{i}+\frac{ay}{b}\uvec{j}

To find,

\int\int_{S}\vec{F}dS  

where S=A=surfece of elliptic cylinder we have to apply Divergence theorem so that,

\int\int_{S}\vec{F}dS

=\int\int\int_V\nabla.\vec{F}dV

=\int\int\int_V(\frac{b}{a}+\frac{a}{b})dV  

=\frac{a^2+b^2}{ab}\int\int\int_VdV

=\frac{a^2+b^2}{ab}\times \textit{Volume of the elliptic cylinder}

=\frac{a^2+b^2}{ab}\times \pi ab\times 2c=\pi (a^2+b^2)c

  • If unit vector \cap{n} directed in positive (outward) direction then z=c and,

\int\int_{S_1}\vex{F}.dS_1=\int\int_{S_1} . dA      

=\int\int_{S_1}.dA=0

  • If unit vector \cap{n} directed in negative (inward) direction then z=-c and,

\int\int_{S_2}\vex{F}.dS_2=\int\int_{S_2}. -dA      

=\int\int_{S_2}. -dA=0

Therefore surface integral without unit vector of the surface is,

\pi(a^2+b^2)c-0-0=\pi(a^2+b^2)c

5 0
4 years ago
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