Please help me asap!!!

Mathematics

2 answers:

Westkost [7]3 years ago

7 0

Answer: immma guess that its c

super sorry if im wrong

Step-by-step explanation:

Lesechka [4]3 years ago

7 0

Answer:

The answer is C; 6.

Step-by-step explanation:

A midsegment will be parallel to the third side of a triangle and it will be half of that third side. So, FD is half of BC. If you plug in the different numbers, only 6 works as a half-whole ratio. 6 - 2 = 4 and 6 + 2 = 8.

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Show work and explain with formulas if possible.

german

12 Answer: 20.25

Step-by-step explanation:

$a_1=4,\ r=1.5,\ n=5\\\\a_n=a_1\cdot r^{n-1}\\\\a_5=4\cdot (1.5)^{5-1}\\\\.\ =4\cdot (1.5)^4\\\\.\ =4\cdot 5.0625\\\\.\ =\large\boxed{20.25}$

13 Answer: 1980

Step-by-step explanation:

$a_1=8,\ d=4, \n=30\\\\a_n=a_1+d(n-1)\\\\a_{30}=8+4(30-1)\\\\.\ =8+4(29)\\\\.\ =8+116\\\\.\ =124\\\\\\S_n=\dfrac{a_1+a_n}{2}\cdot n\\\\\\S_{30}=\dfrac{8+124}{2}\cdot 30\\\\\\.\quad =\dfrac{132}{2}\cdot 30\\\\\\.\quad =66\cdot 30\\\\\\.\quad =\large\boxed{1980}$

16 Answer: 12

Step-by-step explanation:

$\sum\limits^\infty_{n=1} 6\bigg(\dfrac{1}{2}\bigg)^{n-1}\\\\\\S_1=6\qquad \qquad S_2=3\qquad \qquad S_3=1.5\\\\\\\sum\limits^\infty_{n=1} 6\bigg(\dfrac{2}{2^n}\bigg)=\sum\limits^\infty_{n=1} 6\cdot 2\bigg(\dfrac{1}{2^n}\bigg)=12+\sum\limits^\infty_{n=1}\bigg(\dfrac{1}{2^n}\bigg)=12+0=\large\boxed{12}$

5 0

2 years ago

Read 2 more answers

Calculate in square units the area of the shaded region bounded by the line

sashaice [31]

9514 1404 393

Answer:

10 square units

Step-by-step explanation:

The given equation is in "intercept form." This lets you see immediately the x-intercept is 4, and the y-intercept is 5. This makes the area be that of a right triangle with base 4 and height 5:

A = 1/2bh = 1/2(4)(5) = 10 . . . . square units