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maria [59]
3 years ago
10

Help needed please!!!!!

Mathematics
2 answers:
tresset_1 [31]3 years ago
8 0
Multiply to find the sum








Hopefully this helps you!!!
Marina CMI [18]3 years ago
5 0
You need to mark brainliest first to get my answer
You need to times or find the sum
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This sculpture designed by Mr. Newman’s colleague, Tia, is shaped like a hollow triangular pyramid. All 3 of the lateral faces a
Misha Larkins [42]

Answer:

What is the area of each of the lateral faces?  

✔ 12

m²

What is the total lateral area of the sculpture?  

✔ 36

m²

Step-by-step explanation: I forgot the "each of the lateral faces", but the total lateral area is 36 m²  because there are there lateral faces, and the are of each of the lateral faces is 12 m².

4 0
3 years ago
What is the length of BC?
Ber [7]

Answer:

the length is 4

Step-by-step explanation:

12-8 =4

hope it helps

7 0
3 years ago
Read 2 more answers
I would like some help with this! Will mark brainliest :)
gavmur [86]

Answer:

a(n) = 10n-1 (the second one)

Step-by-step explanation:

we use formula

a(n) = a +(n-1)d    (a= the first number in the, n=the times we need, d= difference)

a=9

d=9-19=10

a(n) = 9 +(n-1)10

a(n) = 9 +10n-10

a(n) = 10n-1 (the second one)

I hope it will help

3 0
3 years ago
If 2x + 5 = 8x, then 12x = ?A.5B.10C.15D.20
butalik [34]
<h2>Answer:</h2>10.\text{ Option B is correct}

<h2>Explanation:</h2>

Given the equation expressed as:

2x+5=8x

First, we need to calculate the value of "x" from the given expression.

Step 1: Given the equation 2x + 5 = 8x

Step 2: Subtract 5 from both sides:

\begin{gathered} 2x+5-5=8x-5 \\ 2x+\cancel{5}-\cancel{5}=8x-5 \\ 2x=8x-5 \end{gathered}

Step 3: Subtract 8x from both sides

\begin{gathered} 2x-8x=8x-8x-5 \\ -6x=\cancel{8x}-\cancel{8x}-5 \\ -6x=-5 \end{gathered}

Step 4: Divide both sides by -6

\begin{gathered} \frac{-6x}{-6}=\frac{-5}{-6} \\ x=\frac{5}{6} \end{gathered}

Step 5: Get the value of 12x. Substitute x = 5/6 into the expression to have:

\begin{gathered} 12x=12(\frac{5}{6}) \\ 12x=\cancel{12}^2(\frac{5}{\cancel{6}^1}) \\ 12x=2\times5 \\ 12x=10 \end{gathered}

Therefore the value of 12x is 10

3 0
1 year ago
Find the slopes of the tangent lines to the given curves parametrics cos2t sin3t
amm1812
3sin2tcos3t-2sin2tsin3t
4 0
3 years ago
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