1/2(8x -2) + ( -2x + 1/4)
(4x -1) + (-2x + 1/4)
=
(2x - 3/4) or (2x - 0.75)
Answer:
15
Step-by-step explanation:
2(2) - 18 = -14 |-14| = 14
3(2) -7 = -1 |-1| = 1
14+1=15
Answer: 1️⃣ 40
Step-by-step explanation:
<em>x - is the side of the square</em>
<em />![x^{2} +x^{2} =(10\sqrt{2})^{2} \\2x^{2}} =200\\2x^{2} \div 2=200 \div 2 \\x^{2} =100\\x=\sqrt{100} \\x=10 \: [cm] - side \: of \: a \: square](https://tex.z-dn.net/?f=x%5E%7B2%7D%20%2Bx%5E%7B2%7D%20%20%20%3D%2810%5Csqrt%7B2%7D%29%5E%7B2%7D%20%20%5C%5C2x%5E%7B2%7D%7D%20%20%3D200%5C%5C2x%5E%7B2%7D%20%5Cdiv%20%202%3D200%20%5Cdiv%20%202%20%5C%5Cx%5E%7B2%7D%20%3D100%5C%5Cx%3D%5Csqrt%7B100%7D%20%5C%5Cx%3D10%20%5C%3A%20%20%5Bcm%5D%20-%20side%20%5C%3A%20of%20%20%5C%3A%20a%20%5C%3A%20square)
<em />
<em>Find the perimeter of the square.</em>
<em>Perimeter of the square = 4 × 10 cm = 40 cm</em>
<em />
The answer is 1690. First find
the amount of interest by a single investment by multiplying the investment
amount by the percent interest in decimal form. Then calculate the total by
adding up all the products of investment times interest. Matrices will allow to
multiply two things together and add the products up all at the same time. So
we need to find the investment matrix and interest matrix.
Investment matrix A (transposed) = (a1 a2 a3) = (13,000 12,000 4,000)
Interest Matrix B = (b1
b2 b3) = (0.05 0.06 0.08)
Amount of interest earned = a1b1 + a2b2 + a3b3
Amount of interest earned = (0.05) (13,000) + (0.06)
(12,000) + (0.08)(4,000)
Amount of interest earned = 1690
43/50 is easier because 50 is half of 100
Watch this
43/50. Since 50 is HALF of 100 so we multiply 2 by 50 which is 100. But since we multiplied by 2 for the denominator we have to do the same for the numerator so 43 x 2 is equal to 86.
So we get 86/100 which is 0.86
