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I am Lyosha [343]
2 years ago
10

Please help me with this

Mathematics
1 answer:
Sever21 [200]2 years ago
7 0

Answer:

<u>140 in^2</u>

Step-by-step explanation:

Finding the volume

Length = 4

Width = 7

Height = 5

V = w h l = 7 x 5 x 4 = 140 in^2

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Which number sentence is not true?
Burka [1]

Answer:

Option B

Step-by-step explanation:

|-1| \neq -1

|-1| = 1

8 0
2 years ago
Renee is sewing a quilt whose pattern contains right triangles.
Mashutka [201]

Answer:

  8 inches

Step-by-step explanation:

The area of a triangle is ...

  A = 1/2bh

Filling in the given values, we have ...

  24 = 1/2b(6)

  24/3 = b = 8 . . . . . divide by the coefficient of b

The base of each triangular quilt piece is 8 inches long.

7 0
3 years ago
If f(x) = 3x - 5, than f(2) =
Mamont248 [21]
If we substitute 2 into x it'll be:

3x - 5 \\ 3(2) - 5 \\ 6 - 5 \\ 1

5 0
3 years ago
Use De Moivre’s Theorem to compute the following: <img src="https://tex.z-dn.net/?f=%5B3%28cos27%2Bisin27%29%7D%5E5" id="TexForm
zhannawk [14.2K]
Hello: 
<span>Use De Moivre’s Theorem : 
</span>(3(cos27 +isin27)^5 = 3^5( cos(27 × 5) +isin(27 × 5))
                                = 3^5 ( cos(135)+i sin(135))
                                = 3^5(-√2/2+i √2/2) 
because :  cos(135) = -√2/2    and   sin(135) = √2/2
(3(cos27 +isin27)^5 = (- 3^5√2/2)+ i ( 3^5√2/2)  ...(form : a+ib  when
a= (- 3^5√2/2)  and  b = ( 3^5√2/2)
4 0
3 years ago
Find the EXACT value of sec (-120 degrees)
kenny6666 [7]
Sec is 1/cos so sec -120 is 1/cos -120 which is -2
3 0
3 years ago
Read 2 more answers
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