It would be 8.17. Circumference is 2*pi*r
We have the following:
1.
let x a tulips
let y daffodils
therefore:
solving:
for x:
Therefore, the answer is 5 tulips and 10 daffodils
2.
let x a 30% silver
let y a 55% silver
solving:
for x:
Therefore, the answer is 480 pounds of 30% silver and 320 pounds of 55% silver
Answer:
log5 (4/7)= log5 (4)- log5 (7)=-0.347708839
Step-by-step explanation:
for the first question which would be Approximate: log5 4/7 the answer would be B. –0.3477
and for the second question which would be Approximate: log1/2 5 the answer would be C.–2.3219
Answer:
29 m
Step-by-step explanation:
The dashes mean that the lines are equal in length, so from this we can determine that the area marked 441 m² is a square.
Area of a square = x², where x is the length of 1 side.
Therefore, x = √441 = 21 m
Now we have a right-angled triangle with two legs of 20 m and 21 m. We need to find the hypotenuse (labelled ?). To do this, use Pythagoras' Theorem a² + b² = c², where a and b are the legs and c is the hypotenuse.
Therefore,
20² + 21² = c²
⇒ 400 + 441 = c²
⇒ 841 = c²
⇒ c = √841
⇒ c = 29
So the side marked ? on the diagram is 29
Answer:
FG=13
Step-by-step explanation:
EG-EF=25-12=13
