Answer:
1.332 x 10^-4
Step-by-step explanation:
0.001332 Move the decimal to the right of the first non-zero digit.
0001.332 Now apply the LARD rule: Left Add Right Deduct. We moved the decimal 4 places to the Right, so we Deduct 4 from the power of ten.
Answer:
Number 9
Step-by-step explanation:
Answer:
1000 teens
Step-by-step explanation:
They decide to conduct a survey of a random sample of 1000 teens aged 13–18 from across the U.S.
Answer: 5.1 cm² is the correct answer.
Step-by-step explanation:
to find the area of the shaded region. We want to find the volume of the sector and minus the. Now if you excuse me, the area of the sector minus the area of the triangle. Okay, so let's start with the sector. The area of the sector would be 80° out of 360 times the area of a circle, which is pi times the radius which is five squared. And it will subtract the area of the triangle. All right. Since it's an isosceles triangle, we could turn this into two right triangles. And This would be a 40° angle. And we can find X. Which would be the base of the triangle. Using silk Ayatollah using trig. We would want to find the opposite of 40° and we have the hypotenuse, So opposite and hypotenuse is signed. So we can say the sign of 40° is equal to opposite over hypotenuse and five times the sine of 40 equals double that. And we've got the full base of the triangle. So The area of the triangle would be 1/2 A base. If we double it would be 10 signed 40. And then times the height which we again could use um I'll call it why? We could use Kassian. We could say the Kassian of 40° equals Y over five. So 5 cosine, 40 is equal to the height of the triangle. Okay, so putting this all together, I'm gonna do it all at once. Right into Desormeaux's As we see it here, 80 out of 360 tons. Spy five squared. And then we're going to subtract The area of the triangle, which is 1/2 times 10. Sign 40. Make sure you're in degree mode, right? And then we multiply that by five co sign 40 mm. Hmm. And we'll round to the nearest 10th to get 5.1.
Answer:
The son is 20 and a half years old.
The father is 36 and a half years old.
Step-by-step explanation:
We can solve this easily by turning it into an equation.
Let the mans age be y and the fathers age be x.
y+x=57
x=y+16
We can use the substitution method to solve for the first equation.
y+(y+16)=57
Now we only have one variable to solve for. Add like terms.
2y+16=57
Subtract 16 on both sides.
2y=41
Divide both sides by 2 to isolate y.
y=20.5
Now substitute 20.5 for y to solve for x.
20.5+x=57
Subtract 20.5 from both sides.
x=36.5
<em>The son is 20 and a half years old.</em>
<em>The father is 36 and a half years old.</em>
Hope this helps!