Answer:
-18 + 6j
Step-by-step explanation:
3 * -6 is -18
3 * 2j is 6j
Step-by-step explanation:
earbuds
we have a 1in : 0.2in scale of drawing to reality.
0.2 = 2/10 = 1/5
so, 1in in the drawing is actually 1/5in in reality.
how long are the 4in in the drawing ?
well, 4 times the 1in thing.
4×1/5 = 4/5 = 0.8in long
again the similar triangles
similar triangles means that each pair of corresponding lines (sides, heights, ...) in the triangles follows the same scaling factor for the length.
so, what do I need to multiply the side of the large triangle with to get the corresponding side length of the small triangle ?
27 × x = 9
x = 9/27 = 1/3
and that is the scale factor.
Activity 3
1) 2m^2(4m^2 + 3m + 2)
2) (x + 4)^2 (x - 4)
3) (x + 9)(x - 7)
4) 5y(17y - 4z)
5) (2x - y)(6x + 5y)
Activity 4
1) 80 units because when you sub h = 9, you get 400 as the answer and because it’s a square, you square root 400 which is 20 units per side.
2) x = 7cm because when you multiply (x + 5)(x - 3), you get x^2 + 2x - 15 = 48 and when you solve it you get x is equal to 7, -9, because the length of the rectangle is positive x is equal to 7.
3) the binomial would be (9x + 1)^2.
Answer: Rose is correct 5^5*5^2=5^7
Step-by-step explanation:
when multiplying two powers that have the same base you can add the exponent s (product property’s)
Answer:
Molly's
Step-by-step explanation:
The recipe with a stronger lemon flavor will have a greater ratio of lemon juice to water.
To find the ratio, divide the number of cups of lemon juice by the cups of water for each recipe:
Erica's recipe:
1/3
= 0.33
Molly's:
3/8
= 0.375
Since 0.375 is bigger than 0.33, this means Molly's recipe has a greater ratio of lemon juice to water.
So, Molly's recipe will have a stronger lemon flavor.