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3 years ago

Which equations are true for the values of x, y, and z? Select three options.

Mathematics

1 answer:

AfilCa [17]3 years ago

7 0

Answer:

A) x + 65 = 180

B) x = z

C) y = 65

Step-by-step explanation:

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The bottom one says 9/2 so please help with these questions, I have more on my profile.

eimsori [14]

18. Solve for x by factoring diamond method

10x^2 - 29x - 21 = 0 becomes

(2x - 7)(5x + 3) = 0

x = 7/2, -3/5

19. To model this we will do

(x + 9)(x + 9) = 169

distribute

x^2 + 18x - 88 = 0

factor

(x - 4)(x + 22) = 0

The length is 4m

20. This can be modeled by

(l)(l +5) = 234

distribute

l^2 + 5l -234 = 0

factor

(l-13)(l+18) = 0

The length is 13

The width is 18

21. To find this you divide the x term by 2 and square it so

10/2 = 5

5^2

22. To find this you divide the x term by 2 and square it so

9/2 = 4.5

4.5^2

81/4

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3 years ago

Sam spent half of his allowance going to the movies. He washed the family car and earned 7 dollars. What is his weekly allowance

UkoKoshka [18]

The answer is 18 dollars. If you subtract the $7 he earned, not originally part of his allowance, you get 9. Multiply by 2 because he spent half on the movies and you get 18.

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3 years ago

I WILL GIVE BRAINLIEST TO WHOEVER IS CORRECT

labwork [276]

The second one should by right

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3 years ago

What might factor into a cost of your house that would not factor into the cost for of rebuilding it?

LenaWriter [7]

Appliances, furniture, etc

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2 years ago

PLEASEE HELP!!

Alex777 [14]

Answer:

Step-by-step explanation:

<h3>to understand this</h3><h3>you need to know about:</h3>

quadratic equation
quadratic equation word problems
solving quadratic

<h3>given:</h3>

h(t) = -4t² + 12t + 100

<h3>to solve:</h3>

<h3>tips and formulas:</h3>

<u>the</u><u> </u><u>Ball</u><u> </u><u>will</u><u> </u><u>hit </u><u>the</u><u> ground</u><u> </u><u>when</u><u> </u><u>the</u><u> height</u><u> is</u><u> </u><u>0</u>
<u>solving</u><u> </u><u>quadratics </u><u>using</u><u> </u><u>quadratic</u><u> formula</u>
<u>PEMDAS</u>

<h3>let's solve: </h3>

$step - 1 : \: define$