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3 years ago

8

What is the surface area of the triangular prism?

1 answer:

IrinaK [193]3 years ago

3 0

Answer:

444m²

Step-by-step explanation:

6×10 + 24×6 + (24×10)

$(6 \times 10) + (24 \times 6) + 2 ( \frac{24 \times 10}{2} ) = 60 + 144 + 2(120) = 444 {m}^{2}$

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Solve the system using elimination.<br><br> 2x + 3y = 17<br> x + 5y = 19

ale4655 [162]

$\left\{\begin{array}{ccc}2x+3y=17\\x+5y=19&|\text{multiply both sides by (-2)}\end{array}\right\\\underline{+\left\{\begin{array}{ccc}2x+3y=17\\-2x-10y=-38\end{array}\right}\qquad\text{add both sides of equations}\\.\qquad\qquad-7y=-21\qquad\text{divide both sides by (-7)}\\.\qquad\qquad \boxed{y=3}\\\\\\\text{Substitute the value of y to the second equation}\\\\x+5(3)=19\\\\x=15=19\qquad\text{subtract 15 from both sides}\\\\\boxed{x=4}\\\\Answer:\ x=4\ and\ y=3.$

5 0

3 years ago

if there are 20 questions on a test and I get 45% on the test how much is each question worth percent wise?? using numbers and t

alexdok [17]

Answer:

Each question worth 5.

Step-by-step explanation:

Each question worth 5 Point because

5 x 20 = 100

Hence, 20 question each question worth 5 point.

If You get a 45% then you miss 11 question and only get 9 question correct..

9/20 x 100 = 45.

6 0

2 years ago

Read 2 more answers

What is the result when 3x+25 is subtracted from 35x-410

Gnom [1K]

Answer:

32x-435

Step-by-step explanation:

(35x-410) - (3x+25)

35x-3x=32x

-410-25=-435

3 0

3 years ago

Through: (-5, -5), slope=2/5

kakasveta [241]

For this case we have that by definition, the equation of a line in the slope-intersection form is:

$y = mx + b$

Where:

m: It is the slope

b: It is the cut point with the y axis

The slope is: $m = \frac {2} {5}$

Thus, the equation is of the form:

$y = \frac {2} {5} x + b$

We substitute the given point and find "b":

$-5 = \frac {2} {5} (- 5) + b\\-5 = -2 + b\\-5 + 2 = b\\b = -3$

Finally, the equation is:

$y = \frac {2} {5} x-3$

Answer:

$y = \frac {2} {5} x-3$

4 0

3 years ago

Please help! This is due soon!!!

daser333 [38]

Answer:

The slope of the line is

$\frac{1}{3}$

3 0

3 years ago