If b=40 and c=50 what is for the missing side a= ? by Use the Pythagorean Theorem to find

Here ya go these are the ones i need help with :)

r-ruslan [8.4K]

1) Division Property Equality
$8D = 56$
first pass: Simplify by 8
$\frac{8D}{8} = \frac{56}{8}$
second pass: Now divide the equals
 $1D= 7$
$D = \frac{7}{1}$
$\boxed{D = 7}$

2) Addition Property of Equality
$Z - 9 = 21$
first pass: Incognito on the left and numbers without incognito on the right, changing signs if they change sides.
 $Z = 21 + 9$
second pass: Do the addition
$Z = 21 + 9$
$\boxed{Z = 30}$

3) Subtraction Property of Equality
$B + 7 = 15$
first pass: Incognito on the left and numbers without incognito on the right, changing signs if they change sides.
$B = 15 - 7$
second pass: Do the subtraction
$B = 15 - 7$
$\boxed{B = 8}$

4) Multiplication Property of Equality
 $\frac{3}{7} C = 126$
first pass: Multiply the equalities by the inverse of the incognito, without the incognito
 $( \frac{7}{3}) *\frac{3}{7} C = 126*( \frac{7}{3})$
$\frac{21}{21} C = \frac{882}{3}$
second pass: Cancel the same terms and divide the ratio.
 $\frac{\diagup\!\!\!\!\!21}{\diagup\!\!\!\!\!21} C = \frac{882}{3}$
$C = \frac{882}{3}$
$\boxed{C = 294}$

5) Distributive Property
first pass: We only evaluate what is in the parentheses first and then we solve it.
 $7(A+13)$
second pass: we just evaluate what’s in the parentheses first, then solve it. We have a distributive property, with the distributive property, we multiply the '7' first.
$7*A + 7*13$
$7A + 91$

Obs: This question is not to find the value, only to show the distributive property.

For better understanding and solve your question with equation with incognito, after the distributive property, equalize the terms to zero, then isolate the terms, putting numbers with incognito on the left and numbers without incognito on the right, changing the signal as they change sides. And then solve by finding the value of the incognito dividing the terms.
 $7A + 91 = 0$
$7A = - 91$
$A = \frac{-91}{7}$
$\boxed{A = - 13}$

5 0

4 years ago

Spila Motors Inc. earned income of $69,000 from its operating activities for a specified period. During the same period, it sold

guajiro [1.7K]

Answer:

i think it is b

Step-by-step explanation:

6 0

4 years ago

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The students at Central Elementary School are planning a dinner for their parents.

blsea [12.9K]

They will need 20 pans

5 0

3 years ago

Part 1: What mistake did AJ make in the graph?

grigory [225]

Answer:

Part 1) AJ drawn the parabola opening upwards, instead of drawing it opening downwards

Part 2) see the explanation

Step-by-step explanation:

Part 1) What mistake did AJ make in the graph?

we have

$f(x)=-(x+2)^2-1$

This is the equation of a vertical parabola written in vertex form

The parabola open downward (because the leading coefficient is negative)

The vertex represent a maximum

The vertex is the point (-2,-1)

therefore

AJ drawn the parabola opening upwards, instead of drawing it opening downwards

Part 2) Evaluate any two x-values (between -5 and 5) into AJ's function. Show your work. How does your work prove that AJ made a mistake in the graph?

take the values x=-4 and x=4

For x=-4

substitute the value of x in the quadratic equation

$f(x)=-(-4+2)^2-1\\f(x)=-5$

For x=4

substitute the value of x in the quadratic equation

$f(x)=-(4+2)^2-1\\f(x)=-37$

According to AJ's graph for the value of x=-4 the function should be positive, however it is negative and for the value of x=4 the function should be positive and the function is negative

therefore

AJ made a mistake in the graph

8 0

3 years ago

If the volume of a sphere is 36pi cubic units, what is the radius?

prisoha [69]

The radius is about 2.05

6 0

4 years ago

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