Answer:
21/8 yards
Step-by-step explanation:
If Sarah wants to make her own costume she will need 21/8 yards of yarn.
To get this, you multiply 2 by 8 and get 16.
Next, you will add 5 onto 16 and get 21.
Keep your 21 and put is as your numerator.
Now take your 8 and put it as your denominator.
Let's put this into only hours to make it simple.
Multiply 7 and 4 by 24.
7x24 = 168
4x24 = 96
Now that we have the total hours of days, add the extra hours to the total hours of days,
168 + 4 = 172
96 + 7 = 103
Subtract the two totals.
172-103 = 69.
There are 69 total hours left. Now we need to convert that into days and hours, so divide 69 by 24.
69/24 = 2.875, or 2 days.
We have 2 days, which is 48 hours.
Subtract 48 from 69.
69 - 48 = 21. We have 21 hours.
Our difference is 2 days and 21 hours. I hope this helps!
Rhizoids---------------------------------------------------------
The measure of the angles A, B and C are 43°, 43° and 94° respectively.
Step-by-step explanation:
- Step 1: From the given details, form equations. Let ∠A and ∠B be x°.
⇒ ∠C = 51° + x°
- Step 2: Sum of angles of a triangle is 180°
⇒ ∠A + ∠B + ∠C = 180°
⇒ x + x + 51 + x = 180
⇒ 3x + 51 = 180
⇒ 3x = 129
⇒ x = 43°
⇒ x + 51 = 94°
Answer:
(x + 3)²
Step-by-step explanation:
Given
x² + 6x + 9
This is a perfect square of the form
(x + a)² = x² + 2ax + a²
Compare like terms
a² = 9 ⇒ a = 3 and 2a = 2 × 3 = 6, thus
x² + 6x + 9 = (x + 3)² → D