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2 years ago

Evaluate the following expression when a=4,b=2 , and c=9 c/3 + A

Mathematics

2 answers:

attashe74 [19]2 years ago

7 0

Answer: 7

Step-by-step explanation:

since c = 9 and A = 4 it would make the equation 9/3 + 4

9/3 + 4= 7

murzikaleks [220]2 years ago

3 0

Answer:

so 9/3+4=7

Step-by-step explanation:

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Answer part A and part B

vredina [299]

Answer: Part A: a square pyramid Part B: 84 square feet

Step-by-step explanation:

Part A: The shape will have a base that is a square with triangles on each of its edges that connect at a point at the top.

Part B: The amount of nylon needed is the surface area of the net. There is a square and two triangles. The square has a side length of 6 so its area will be 6*6=36 square feet. Each triangle has a base of 6 and a height of 4 so each of their areas will be $\frac{6*4}{2}=12$ square feet. Adding up the area of the 4 triangles and the square gives us 4*12+36=84 square feet.

5 0

3 years ago

Write an equation in point slope form for the line that passes through (-5,6) and (-3,-9).

Finger [1]

$\bf (\stackrel{x_1}{-5}~,~\stackrel{y_1}{6})\qquad
(\stackrel{x_2}{-3}~,~\stackrel{y_2}{-9})
\\\\\\
slope = m\implies
\cfrac{\stackrel{rise}{ y_2- y_1}}{\stackrel{run}{ x_2- x_1}}\implies \cfrac{-9-6}{-3-(-5)}\implies \cfrac{-9-6}{-3+5}\implies -\cfrac{15}{2}$

$\bf \begin{array}{|c|ll}
\cline{1-1}
\textit{point-slope form}\\
\cline{1-1}
\\
y-y_1=m(x-x_1)
\\\\
\cline{1-1}
\end{array}\implies y-6=-\cfrac{15}{2}[x-(-5)]\implies y-6=-\cfrac{15}{2}(x+5)
\\\\\\
y-6=-\cfrac{15}{2}x-\cfrac{75}{2}\implies y=-\cfrac{15}{2}x-\cfrac{75}{2}-6\implies y=-\cfrac{15}{2}x-\cfrac{87}{2}$

8 0

3 years ago

X+3=12 solve for x. x =

NeX [460]

Answer:

X is 9

Step-by-step explanation:

9 + 3 = 12

3 0

3 years ago

Please help with this question. I need an answer ASAP!! I need help! I don't understand this!

Romashka-Z-Leto [24]

Answer: 42°

<u>Step-by-step explanation:</u>

HJ is an angle bisector of ∠IHK so

∠IHJ ≅ ∠KHJ ⇒ m∠IHJ = m∠KHJ

3a + 6 = 5a - 18

6 = 2a - 18

24 = 2a

12 = a

∠IHJ = 3a + 6

= 3(12) + 6

= 36 + 6

= 42

8 0

3 years ago

During lunch on Friday, 45 students in the 7th

goldenfox [79]

If 25% is 45 students, then 100% is 180 students. There are 180 students in the entire 7th grade class.

8 0

3 years ago

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