Answer:
It should be -8 please let me know if I am right
Step-by-step explanation:
(2*3+7)+(1-2*3^2)-4*3
(6+7)+(-3^2)-12
13+-9-12
=-8
Answer:
Step-by-step explanation:
14) since this is a square each side is going to be the same length; all sides will be 9 ft long
x + 2 = 9 9 - 2 = 7 X = 7
to get the area of the square you must find the length of one side.... we know it is 9.... then we multiply the length by itself.... in this case 9 x 9
9 x 9 = 81 ft
15) formula to find the area of a right triangle is: A = ab/2
In this case a = 8cm and b = (x + 1) cm
In order to meet the requirement of ≤ 44 ab must = ≤ 88
since we multiply ab then x has to be 10 or less since 10+1=11
and 11 x8 = 88 and 88 divided by 2 = 44
Answer:
-8
Step-by-step explanation:
-4(b + 2) + 4b
Open bracket by multiplying -4 by the bracket, that is
-4×b +(-4×2) + 4b
= -4b +(-8) + 4b
Note: + × - = -
= -4b - 8 + 4b
Collect like terms
= 4b - 4b - 8
= -8
I hope this was helpful, please rate as brainliest
<span>20 juniors, and 16 seniors
</span><span>ratio of juniors to seniors = 20/16 = 5/4
answer
</span>ratio of juniors to seniors
5/4 or 5:4
Answer:
Step-by-step explanation:
Given
Required
Find
From the question, we have that:
Each sequence = 2 * Previous sequence + 1;
i.e.
Considering the 9th sequence;
------ Equation 1
Considering the 8th sequence;
Substitute for in equation 1
becomes
Open bracket
Substitute 63 for
Subtract 3 from both sides
Divide both sides by 4
Considering
Substitute 63 for
Calculating
<em>Hence, the 10th - 7th number is 112</em>