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2 years ago

9

Please help this is due in 3 hours!! #17

1 answer:

Westkost [7]2 years ago

4 0

Answer:

multiply 31.4x7.9 then add 9.5 to the answer to multiplication prob. Then add your answer in the first sentence. Then multiply 4.6 x 2 . I think that right,good luck : ) luck.

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Simplify. 9 – (–6) – 12

kondor19780726 [428]

9+6=15 and 15-12=3 so this =3 the -(-6) becomes positive

5 0

2 years ago

Read 2 more answers

Can somewon help me plz can somewon help me

Karolina [17]

Hey there! I'm happy to help!

Let's look at our diameters.

$1*10^2^1\\5*10^2^2$

We want to see how many times greater the diameter of the IC 1101 is than the Milky Way. So, we will divide it's diameter by the diameter of the Milky Way.

$\frac{5*10^2^2}{1*10^2^1} \\$

We divide the numbers without exponents, giving us 5. Then, we divide the 10s with exponents. When dividing exponents, you subtract the numbers in the exponent to get your result. For example, x³÷x²=x

$\frac{5*10^2^2}{1*10^2^1} = 5*10=50$

Therefore, your answer is 50.

Have a wonderful day! :D

3 0

3 years ago

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Explain why this statement is true:<br> 7a +4 – 2a = 7a + (-20)+4

MAVERICK [17]

Answer:

This equation has one solution so given statement is true.

Step-by-step explanation:

7a +4 – 2a = 7a + (-20)+4

5a + 4 = 7a - 16

5a - 7a = -16 - 4

- 2a = - 20

a = 10

This equation has one solution so given statement is true.

7 0

2 years ago

What’s the molar mass for N2O5

Nimfa-mama [501]

The molar mass of N2O5 (Dinitrogen pentoxide) is 108.01 g/mol.

4 0

2 years ago

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Identify the surface whose equation is given. rho2(sin2(φ) sin2(θ) + cos2(φ)) = 49

Paha777 [63]

Answer:

The surface is a cylindrical surface with radius 7 units

Step-by-step explanation:

The equation is properly written as:

$\rho^{2} (sin^{2} \phi sin^{2} \theta + cos^{2} \phi) = 49$

The above equation takes the form $y^{2} + z^{2} = r^{2}$

Where $y^{2} = \rho^{2} sin^{2} \phi sin^{2} \theta$

$y = \rho sin \phi sin \theta$

and $z^{2} = \rho^{2}cos^{2} \phi$

$z = \rho cos \phi$

$r^{2} = 49$

r = 7 units

The surface is a cylindrical surface with radius 7 units

4 0

2 years ago