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lbvjy [14]
3 years ago
7

HELP, please!! What is the area of a trapezoid ABC?

Mathematics
2 answers:
MrRa [10]3 years ago
5 0

Answer:

<h2>26 feet squared</h2>

Step-by-step explanation:

Area of trapezoid:

\frac{1}{2}  \times  \: sum \: of \: parallel \: sides \:  \times height

plugging the values:

\frac{1}{2}  \times (21 + 5) \times 2

Calculate the sum

\frac{1}{2}  \times 26 \times 2

Reduce the numbers with G.C.F 2

13 \times 2

Calculate the product

26 feet squared.

Hope this helps...

Best regards!

Shtirlitz [24]3 years ago
3 0
It’s c just to let you know I have done this before
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Find the area of the region under the graph of f on [a, b].<br> f(x) = x2 − 8x + 17; [−1, 2]
Harman [31]

Answer:

The area is 42 area units.

Step-by-step explanation:

The area of a function f(x) on an interval [a,b] is given by:

A = \int\limits^a_b {f(x)} \, dx

Applying to this question:

A = \int\limits^-1_2 {x^2 - 8x + 17} \, dx

Then

F(x) = \frac{x^{3}}{3} - 4x^{2} + 17x

A = F(2) - F(-1)

F(2) = frac{2^{3}}{3} - 4*2^{2} + 17*2 = \frac{8}{3} + 18 = \frac{8 + 3*18}{3} = \frac{62}[3}

F(-1) = frac{(-1)^{3}}{3} - 4*(-1)^{2} + 17*(-1) = -\frac{1}{3} - 21 = \frac{-1 - 21*3}{3} = -\frac{64}[3}

A = F(2) - F(-1) = \frac{62}[3} - (-\frac{64}[3}) = \frac{62+64}{3} = 42

The area is 42 area units.

5 0
3 years ago
two blocks of wood are shaped as right rectangle prisms the smaller block has a length of 9 cm a width of 3 cm and a height of 7
dolphi86 [110]

Answer:

1,512 cm³

Step-by-step explanation:

The general formula for the volume of a prism is:

V= Bh, where B = the area of the base and h = height of the prism

Given the dimensions of the smaller block as 9cm x 3cm x 7cm, then the dimensions of the larger block (double the dimensions of the smaller block) must be 18cm x 6cm x 14cm.  Using these measurements:

V = (18)(6)(14) = 1,512 cm³

3 0
3 years ago
NO LINKS!! Please help me with this problem​
iogann1982 [59]

{\qquad\qquad\huge\underline{{\sf Answer}}}

The given figure shows a vertical hyperbola with its centre at origin, and as we observe the figure, we can conclude that :

Length of transverse axis is :

\qquad \sf  \dashrightarrow \: 2b = 12

\qquad \sf  \dashrightarrow \: b = 6

length of conjugate axis is :

\qquad \sf  \dashrightarrow \: 2a = 8

\qquad \sf  \dashrightarrow \: a = 4

Equation of hyperbola ~

\qquad \sf  \dashrightarrow \:    \cfrac{ {y}^{2} }{ {b}^{2} } - \cfrac{  {x}^{2} }{ {a}^{2} }  = 1

plug in the values ~

\qquad \sf  \dashrightarrow \:    \cfrac{ {y}^{2} }{ {6}^{2} } - \cfrac{  {x}^{2} }{ {4}^{2} }  = 1

\qquad \sf  \dashrightarrow \:    \cfrac{ {y}^{2} }{ {36}^{} } - \cfrac{  {x}^{2} }{ {16}^{} }  = 1

5 0
2 years ago
Read 2 more answers
Please help with math
dezoksy [38]

Anwser: The hotels charge for a call is the same for a 20 minute call.

Step-by-step explanation:

Alrighty, same deal as the last problem, set up a equality, it should look like this:

$1+.80x=$2+.75x

Move the variable to the left of the equation:

.80x-.75x=2-1

Simplify

.05x=1

x=20

3 0
3 years ago
Laura spent 4/3 of her savings on a new CD which equivalent fraction shows the amount Laura spent? 1/9, 2/8, 1/3, or 2/3
Sholpan [36]
Round 4/3 to the nearest half you should come up with 2/3
7 0
3 years ago
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