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ArbitrLikvidat [17]
3 years ago
5

Which expression is equal to p + (q + r)?

Mathematics
1 answer:
Svetach [21]3 years ago
7 0
The answer should be a) (p+q)*r
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1 point
mezya [45]

Answer:

$62,000

Step-by-step explanation:

There are 20 people.

You have to add $5000 and $1200, which equals $6,200.

You have to multiply that by 10 to get the answer.

6 0
3 years ago
Solve (x – 4)^2=5<br> Hhhhhbb
Oxana [17]

Answer:

x = 4 + sqrt(5) or x = 4 - sqrt(5)

Step-by-step explanation:

Solve for x:

(x - 4)^2 = 5

Take the square root of both sides:

x - 4 = sqrt(5) or x - 4 = -sqrt(5)

Add 4 to both sides:

x = 4 + sqrt(5) or x - 4 = -sqrt(5)

Add 4 to both sides:

Answer: x = 4 + sqrt(5) or x = 4 - sqrt(5)

6 0
3 years ago
Tyler is building a fish tank in the shape of a sphere that has a diameter of 20 inches. Based on Tyler's research, it is recomm
nikklg [1K]

Answer: 6 fishes

Step-by-step explanation:

Hi, to answer this question we have to apply the next formula:

Volume of a sphere = 4/3 x π x (diameter/2)^3

Replacing with the values given:

V = 4/3 x π x (20/2)^3

v = 4/3 x π x (10)^3 = 4,188.79 in3

Finally, we have to divide the volume of the fish tank by the volume that each goldfish needs.

4,188-79 / 693 = 6.04 = 6 fishes

Feel free to ask for more if needed or if you did not understand something.

3 0
4 years ago
Read 2 more answers
What is the equation for the acid ionization constant of HClO2?
jarptica [38.1K]
<span>[H+] x [(CIO2)-]/[HCIO2]</span>
6 0
3 years ago
Consider f and c below. f(x, y) = (7 + 8xy2)i + 8x2yj, c is the arc of the hyperbola y = 1/x from (1, 1) to 3, 1 3 (a) find a fu
KonstantinChe [14]

\dfrac{\partial f}{\partial x}=7+8xy^2

\dfrac{\partial f}{\partial y}=8x^2y

The first equation gives

f(x,y)=7x+4x^2y^2+g(y)

Differentiating with respect to y gives

8x^2=8x^2y+\dfrac{\mathrm dg}{\mathrm dy}\implies\dfrac{\mathrm dg}{\mathrm dy}=0\implies g(y)=K

for some constant K. So

f(x,y)=7x+4x^2y^2+K

and by the fundamental theorem of calculus,

\displaystyle\int_C\nabla f\cdot\mathrm d\vec r=f\left(3,\frac13\right)-f(1,1)=25-11=\boxed{14}

4 0
3 years ago
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