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2 years ago

Pls help with this one to! What is the relationship between

Mathematics

1 answer:

solmaris [256]2 years ago

7 0

Answer:

ABC is a 90 degree angle and CBD is a 30 degree.

Step-by-step explanation:

If u look at ABC you can see that its a right angle and CBD is 30 degrees because its the exact same angle as EBF!!!

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Find the slope of the line passing through (-9,3), (-3,-5)

egoroff_w [7]

Answer:

-4/3

Step-by-step explanation:

Slope: (y2-y1)/(x2-x1)

(-5-3)/(-3+9) = -8/6 = -4/3

The slope is -4/3

6 0

3 years ago

Please help graph below | What is the slope of this line?

ehidna [41]

The slope is 0 because there is no slope it is not pointing up nor is it down. It is just a straight line. I hope this helps!! Have a nice day!!

4 0

2 years ago

Read 2 more answers

The sum of two numbers is 9.9, and the sum of the squares of the numbers is 53.21. What are the numbers?

Snezhnost [94]

Answer:

There are two possibilities:

$x_{1} = 3.5$ and $y_{1} = 6.4$

$x_{2} = 6.4$ and $y_{2} = 3.5$

Step-by-step explanation:

Mathematically speaking, the statement is equivalent to this 2-variable non-linear system:

$x + y = 9.9$

$x^{2} + y^{2} = 53.21$

First, $x$ is cleared in the first equation:

$x = 9.9 - y$

Now, the variable is substituted in the second one:

$(9.9-y)^{2} + y^{2} = 53.21$

And some algebra is done in order to simplify the expression:

$98.01-19.8\cdot y +2\cdot y^{2} = 53.21$

$2\cdot y^{2} -19.8\cdot y +44.8 = 0$

Roots are found by means of the General Equation for Second-Order Polynomials:

$y_{1} \approx \frac{32}{5}$ and $y_{2} \approx \frac{7}{2}$

There are two different values for $x$ :

$y = y_{1}$

$x_{1} = 9.9-6.4$

$x_{1} = 3.5$

$y = y_{2}$

$x_{2} = 9.9 - 3.5$

$x_{2} = 6.4$

There are two possibilities:

$x_{1} = 3.5$ and $y_{1} = 6.4$

$x_{2} = 6.4$ and $y_{2} = 3.5$

5 0

2 years ago

How do you solve linear equations using substitution

GuDViN [60]

You substitute the y from the second eqaution to the y in the first equation

4 0

2 years ago

Plz help me I need help I am so stuck

lana [24]

Answer:

4^-5

Step-by-step explanation:

Since the have liked exponents, the exponent stays the same and divide 8 by 2 which equals 4.

Then place the exponent back to the quotient

6 0

2 years ago