In which pair is the value of Expression A two times the value of Expression B?A.
Expression A: 3 × (55 + 21)
Expression B: 3 × (22 1/2 + 21)

B.
Expression A: (75 + 23)
Expression B: (75 + 23) × 2

C.
Expression A: (44 + 32) × 8
Expression B: (44 + 32) × 4

D.
Expression A: (3 × 55) + 42
Expression B: (3 × 55) + 21

Answers

Answer 1

Answer:

Answer:

Step-by-step explanation:

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Reduce the equation of straight line 2x+3y = 12 in double intercept form and hence mention its X-intercept and Y-intercept.

Answers

Answer:

x intercept: (x,0)

y intercept: (0,y)

2x+0=12/÷2 0+3y=12/÷3

x=6 y=4

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$(x)/(6) + (y)/(4) = 1$

5.567 round hundredths

Answers

5.57 because 5 is the tenths 6 is hundredths 7 is thousandths

556.7, I am really good at decimals and fractions, just mainly math, science, literature, and some Economics

During the month of February, Fabulous Feet Shoe Mart sold 30 pairs of red loafers. After an ad campaign to boost sales, they sold 39 pairs in March. Find the percent of increase in sales.

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How do you express 30% as a ratio in lowest terms?

Answers

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5tanx-2cotx+1=0...... .

Answers

Step-by-step explanation:

5(tanx)^2 -2 +tanx=0

let tanx=y

5y^2 + y-2=0

y=0.5403 or y= -0.7403

tanx=0.5403

x=arctan(0.5403)

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tanx=-0.7403

x=arctan(-0.7403)

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Solve each system of equations.

6x + 5y = 10
7x - 3y = 24

Answers

$\begin{cases} 6x + 5y = 10 \n 7x - 3y = 24 \end{cases}\n\begin{cases} 5y = -6x+10\ \ / :5 \n 7x - 3y = 24 \end{cases}\n\begin{cases} y =-(6)/(5)x+2 \n 7x - 3y = 24 \end{cases}\n\nsubstition \n$

$7x - 3y = 24 \n 7x - 3 \cdot (-(6)/(5)x+2) = 24\n7x+(18)/(5)x-6=24\n (35)/(5)x+(18)/(5)x =24 +6\n(53)/(5)x =30 \ \ / \cdot (5)/(53)\n\nx=(150)/(53)$

$y= -(6)/(5)x+2 \ny= -(6)/(5) \cdot (150)/(53) +2\ny=-(6\cdot 30)/(53)+2\ny=-(180)/(53)+ (106)/(53)\n \n y= -(74)/(53)\n\n Answer : x=(150)/(53) \ \ and \ \y= -(74)/(53)$

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