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2 years ago

The figures below are similar. Find the length of the missing side.

Mathematics

1 answer:

Oliga [24]2 years ago

3 0

Answer:

Step-by-step explanation:

multiply the side by 9

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Find the zeros of the function. f(x) = 9x2 + 6x - 8

jeyben [28]

Just set it equal to zero and solve using the quadratic equation.

7 0

2 years ago

Read 2 more answers

Solve for x and y in the system of equation 3x²+4y=17 2x²+5y=2 I'll mark brainliest

Novay_Z [31]

Answer:

$x=\pm \sqrt{11} \\y=-4.$

Step-by-step explanation:

$\left \{ {{3x^2+4y=17} \atop {2x^2+5y=2}} \right. \\\\Then\\\\\left \{ {{2 \times (3x^2+4y)=2 \times 17} \atop {3\times(2x^2+5y)=3\times2}} \right. \\\\\left \{ {{6x^2+8y=34 \quad (1)} \atop {6x^2+15y=6\quad (2)}} \right.\\\\(1)-(2) \Rightarrow -7y=28 \Rightarrow y =-4.\\Since \: \: 2x^2+5y=2 \Rightarrow 2x^2=2-5y\\\Rightarrow 2x^2=2+20=22\\\Rightarrow x^2=22:2=11\\\Rightarrow x=\pm \sqrt{11}.$

7 0

2 years ago

Suppose IQ scores were obtained from randomly selected couples. For 20 such pairs of people, the linear correlation coefficient

Brilliant_brown [7]

Answer:

108.88

Step-by-step explanation:

Given that:

Equation of Regression line obtained for couple's IQ:

y=9.88+0.9x

x represents the IQ score of the husband

The best predicted IQ of wife Given that husband's IQ is 110

y = 9.88 + 0.9(110)

y = 9.88 + 99

y = 108.88

6 0

2 years ago

Help me out? it would mean tons tysm

m_a_m_a [10]

Answer:

y - 5 = -3(x + 2)

General Formulas and Concepts:

Algebra I

Point-Slope Form: y - y₁ = m(x - x₁)

x₁ - x coordinate
y₁ - y coordinate
m - slope

Step-by-step explanation:

Step 1: Define

Slope m = -3

Point (-2, 5)

Step 2: Write function

Substitute: y - 5 = -3(x + 2)

3 0

2 years ago

Fraction to decimal. What is 5/2 in decimal form?

Novosadov [1.4K]

Answer:

2.5

Step-by-step explanation:

4 0

2 years ago