F(x) = a*b^x
y-intercept is when x = 0
i.e. f(x) = a*b^0 = a
y-intercept is a.
Answer:
a =2.2
Step-by-step explanation:
Since this is a right triangle, we can use the Pythagorean theorem
a^2+b^2 = c^2
where a and b are the legs and c is the hypotenuse
a^2+2^2 = 3^2
a^2 +4 = 9
a^2 = 9-4
a^2 = 5
Taking the square root of each side
sqrt(a^2) = sqrt(5)
a = sqrt(5)
a=2.236067977
To the nearest tenth
a =2.2
Answer:
14.4cm
Step-by-step explanation:
Let the 7th length be y
Mean of the length = sum of all the length/number of let
Mean of the length = 13cm
13 = (11.8 + 12.4 + 12.5 + 13.2 + 13.6 + 13.1 + y) /7
13 = (76.6 + y) /7
Cross multiply to express in linear form
13 x 7 = 76.6 + y
91 = 76.6 + y
Collect like terms
91 — 76.6 = y
y = 14.4cm
Therefore, the 7th length is 14.4cm
It’s 7 square 5 and for A
Answer:
A. 232 in²
B. 216 in²
Step-by-step explanation:
A. Box A is a cuboid/rectangular prism.
Surface area of box A = 2(LW + LH + WH)
L = 10 in
W = 2 in
H = 8 in
Surface area = 2(10*2 + 10*8 + 2*8)
= 2(20 + 80 + 16) = 2(116)
Surface area = 232 in²
B. Surface area of B = surface area of cube
Surface area of cube = 6s²
s = 6 in
Surface area = 6(6²)
= 6(36)
= 216 in²
