Answer:
0.1 is 0.1265525 rounded to the nearest tenth
Answer:
x = 30.8
Step-by-step explanation:
88 - 55 + 5x -7 = 180
33 + 5x -7 = 180
5x -7 = 180 - 33
5x - 7 = 147
5x = 147 +7
5x = 154
x = 154/5
x = 30.8
Hope you got it.
Please mark as Brainliest.
Answer:
EB=3.3
Step-by-step explanation:
From the diagram, triangle ABC is similar to triangle DBE.
This means that, the corresponding sides are proportional.
It was given that AC=6, DE=4, CB=5.
We want to find EB=x
Since the ratio of corresponding sides are proportional, we have:
We substitute to obtain:
Multiply both sides by 5 to get:
Answer:
(a) (a² +3a -1)(a² -3a -1)
Step-by-step explanation:
The constant term of the product of the factors will be equal to the product of their constants. Since you want that product to be +1, the signs of the factor constants must be the same. That eliminates choices (c) and (d).
__
To tell which of choices (a) and (b) is correct, we can compute the squared term in their product. Let's do it in a generic way, with the constant (±1) being represented by "c".
We want the a² term in the product ...
(a² +3a +c)(a² -3a +c)
That term will be the result of multiplying both sets of first and last terms, and adding the product of the middle terms:
(a²·c) +(a²·c) -9a² = a²(2c-9)
So, we want the factor (2c-9) to be -11, which means c=-1, not +1.
The correct factorization of the given expression is ...
(a² +3a -1)(a² -3a -1) . . . . matches choice A
20:10 | 2:1 | Hope this helps
