All categories

4 years ago

what is the surface area of a triangular prism with a length of 8 base of 4 height of 6 and side length of 6.3

Mathematics

1 answer:

Firdavs [7]4 years ago

4 0

The area of the two triangular bases is
A = (4 mm)(6 mm) = 24 mm²

The perimeter of the triangular base is
P = 2(6.3 mm) + 4 mm = 16.6 mm
so the lateral area is
A = (16.6 mm)(8 mm) = 132.8 mm²

The total surface area is the sum of the base areas and the lateral area.
total area = 24 mm² + 132.8 mm² = 156.8 mm²

This value corresponds to selection ...
D) 156.8 mm²

You might be interested in

Assume that you plan to use a significance level of α = 0.05 to test the claim that p1 = p2, use the given sample sizes and numb

11Alexandr11 [23.1K]

Since the data is insufficient. Let us denote that n1 = 100, n2 = 100X1 = 38. X2 = 40
So looking for the p value:
p = (38+ 40) / (100 + 100) = 0.39
z = (38/100 - 40/100)/√ (0.39*(1-0.39)*(1/100 + 1/100))= -0.2899
P-value = P (|z| > 0.2899) = 0.7718

7 0

3 years ago

Please help asap 30 pts

love history [14]

$14-4y\geq38\qquad|\text{subtract 14 from both sides}\\\\-4y\geq24\qquad|\text{change the signs}\\\\4y\leq-24\qquad|\text{divide both sides by 4}\\\\y\leq-6\\\\Answer:\ \boxed{d.\ y\leq-6}$

7 0

3 years ago

Read 2 more answers

A girl is 18 years old and her brother is a third of her age. When the girl is 36 what would be the age of the brother?

ale4655 [162]

First we need to calculate how many years her brother has when she is 18. As text says he is:
18/3 = 6 years old

Now when she gains another 18 years (36-18=18) he will also gain those 18 years

When she is 36 he will have 6+18=24 years old

Answer is 24.

8 0

4 years ago

Read 2 more answers

Which ratio expresses the scale used to create this drawing? 1 square=10 yards

BlackZzzverrR [31]

Answer:

option B

Step-by-step explanation:

option B

gdyfudjfjghfhguftduc

4 0

3 years ago

3. An exclusive clothing boutique triples the price of the items it purchases

Juli2301 [7.4K]

Answer:

a) MARKUP PERCENT = 200%

b) If the cost price of clothing A = $10

then its retail price = $30

If the cost price of clothing B = $25

then its retail price = $75

Step-by-step explanation:

Let us assume the original price for the clothing = a

Now, boutique triples the price of the items it purchases for resale.

So, the resale value of the item of clothing = 3 times (Original price) = 3 a

So, here: The resale Value = 3 a

a) MARK UP Percentage = $(\frac{\textrm{SP - CP}}{CP}) \times 100$

$\implies \% = (\frac{3a-a}{a} ) \times 100 = 200 \%$

or, the MARKUP PERCENT = 200%

b) Two expressions that represent retail price

If the cost price of clothing A = $10

then its retail price = 200% of 10 + 10 = 20 + 10 = $30

If the cost price of clothing B = $25

then its retail price = 200% of 25 + 25 = 50 + 25 = $75

7 0

3 years ago