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3 years ago

6. Find the surface area of the triangular prism. 3 4. 4 5

Mathematics

1 answer:

Lyrx [107]3 years ago

7 0

Answer:

the answer is 345 4 like it literally says it on the paper like how could you not know that like it's on the

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Find the average speed 51 meters in 4 minutes and 15 sec

Usimov [2.4K]

0.4473 mph
0.7200 kmh
0.2000 meters/sec
39.3700 feet/minute

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4 years ago

Marika is training for a track race She starts by sprinting 100 yards . She gradually increases her distance , adding 4 yards a

wel

For this case, you must use the given expression, taking into account that:
n = number of days.
We have then that for day 21, n = 21.
Substituting we have:
a21 = 100 + (21-1) * 4
a21 = 180
Answer:
she sprints 180 yards on day 21

7 0

3 years ago

Pls pls help i will mark brainliest to whoever can answer it for me.

Luba_88 [7]

Answer:

The lateral surface is 120 $in^2$ , which agrees with the third answer option of the list.

Step-by-step explanation:

Notice that the prism has 5 equal lateral faces, which are all rectangles of eight 6". The width of the prisms can be obtained by using the fact that the perimeter of the pentagon is 20", which gives a side length of 20/5 = 4 " which is the same as the with of the lateral rectangles.

Then the lateral area of the prism is:

Lateral area= 5 (6" x 4") = 5 (24) = 120 $in^2$

4 0

3 years ago

Use the x-values: 1, 2, 3, and 4 to write solutions of the equation y = 14x + 8 as ordered pairs.

ryzh [129]

The options can be resumed to the 2nd and 3rd options. If the x-values come first when representing the pair of coordinates, so they will look like (1, y), (2, y), (3, y), and (4, y).

Now we only need to calculate the y-values.
y(1)=14×1+8 ⇔ y(1)=14+8 ⇔ y(1)=22

From only this result we know that the correct option is the third, starting with (1,22).
Only for verification, below are the other y-values' calculations.
y(2)=14×2+8 ⇔ y(2)=36
y(3)=14×3+8 ⇔ y(3)=50
y(4)=14×4+8 ⇔ y(4)=64

3 0

4 years ago

Find the area of the trapezoid. points are (-5,-3)(4,-3)(6,-7)(-7,-7)

Olegator [25]

Answer:

44 square units

Step-by-step explanation:

The area of a trapezoid with bases b₁ and b₂ and height h is given by the formula

$A=\left(\dfrac{b_1+b_2}{2}\right)h$

If you're wondering how we get this formula, check the attached illustration (remember the area of a parallelogram is its base multiplied by its height)! Moving on to our trapezoid, the pairs of points (-5,-3)(4,-3) and (6,-7)(-7,-7) form two horizontal segments, which form b₁ and b₂, and our height is the distance between the y-coordinates -3 and -7, which is 4. We can find b₁ and b₂ by finding the distance between the x coordinates in their pairs of points:

$b_1=|-5-4|=|-9|=9\\b_2=|6-(-7)|=|6+7|=13$

Putting it altogether:

$A=\left(\dfrac{9+13}{2}\right)(4)=\left(\dfrac{22}{2}\right)(4)=(11)(4)=44$

So the area of our trapezoid is 44.

4 0

3 years ago