Answer:
77 pictures
Step-by-step explanation:
You are trying to find 18% of 430.
18/100 = 9/50 * 430
756/10 = 75.6
77 is the closest choice out of all the other choices.
Answer:
c
Step-by-step explanation:
the both have the same gradient if 5/3, therefore they are parallel.
12/14
18/21
if you multiply the numerator and denominator of a fraction by same number, you can get an equivalent fraction
good luck
Answer:
Percentage of scores that fall between 70 and 80 = 24.34%
Step-by-step explanation:
We are given a test with a population mean of 75 and standard deviation equal to 16.
Let X = Percentage of scores
Since, X ~ N(
)
The z probability is given by;
Z =
~ N(0,1) where,
= 75 and
= 16
So, P(70 < X < 80) = P(X < 80) - P(X <= 70)
P(X < 80) = P(
<
) = P(Z < 0.31) = 0.62172
P(X <= 70) = P(
<
) = P(Z < -0.31) = 1 - P(Z <= 0.31)
= 1 - 0.62172 = 0.37828
Therefore, P(70 < X < 80) = 0.62172 - 0.37828 = 0.24344 or 24.34%
Answer: C) 5.5 cm.
Step-by-step explanation:
From the given , it can be clearly seen that in triangle DBE , G and H are the midpoints of segment DB and DE respectively.
Also, GH is parallel to BE. [By Converse of Basic proportionality theorem]
Length of BE= 11 cm.
Further more,
![\dfrac{DB}{DG}=\dfrac{BE}{GH}\\\\\Rightarrow\dfrac{2DG}{DG}=\dfrac{11}{GH}\ \ [{DG=GB,\therefore\ DB=2DG }]](https://tex.z-dn.net/?f=%5Cdfrac%7BDB%7D%7BDG%7D%3D%5Cdfrac%7BBE%7D%7BGH%7D%5C%5C%5C%5C%5CRightarrow%5Cdfrac%7B2DG%7D%7BDG%7D%3D%5Cdfrac%7B11%7D%7BGH%7D%5C%20%5C%20%5B%7BDG%3DGB%2C%5Ctherefore%5C%20DB%3D2DG%20%7D%5D)

Hence, the BEST ESTIMATE for segment GH is 5.5 cm.
Note :
Converse of Basic Proportionality Theorem says that when a line (or a segment) divides any two sides of a triangle in equal proportion then the line ought to be parallel to the remaining third side.