2 years ago

KNOWLEDGE CHECK: ALEKS

Mathematics

1 answer:

Ainat [17]2 years ago

3 0

Answer:

Step-by-step explanation:

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I am thinking of a number. I subtract 10 then divide by 2 and I now have 19. What was my original number? (Hint: Start with the

saw5 [17]

48 because that's what you get following your equation in PEMDAS order :)

5 0

2 years ago

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What is the value for y?<br> Enter your answer in the box.<br> y=

serious [3.7K]

Answer:

$y =112$

Step-by-step explanation:

Given

The attached triangle

Required

Find y

The attached triangle is isosceles; so:

$x - 5=34$

Also, we have:

$y + x - 5 + 34=180$ --- angles in a triangle

Substitute: $x - 5=34$

$y + 34 + 34=180$

Collect like terms

$y =- 34 - 34+180$

$y =112$

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3 years ago

F(x) =5x^2-20x+3 how to find minimum

Leya [2.2K]

Answer:

(2,-17) should be the minimum.

Step-by-step explanation:

The minimum of a quadratic function occurs at $x=-\frac{b}{2a}$ . If a is positive, the minimum value of the function is $f(-\frac{b}{2a})$

$f_{min}x=ax^2+bx+c$ occurs at $x=-\frac{b}{2a}$

Find the value of $x=-\frac{b}{2a}$

x = 2

evaluate f(2).

replace the variable x with 2 in the expression.

$f(2)=5(2)^2-20(2)+3$

simplify the result.

$f(2)=5(4)-20(2)+3$

$f(2)=20-40+3$

$f(2)=-17$

The final answer is -17

Use the x and y values to find where the minimum occurs.

HOPE THIS HELPS!

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2 years ago

To go to the school footsall game, a student would pay $2.00 for each drink purchases,

kotykmax [81]

Answer: 2d

Step-by-step explanation:

You multiply the cost by the amount d, to find the total cost. Since it wants an expression, there is no equal sign.

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2 years ago

What is the square root of 45 rounded to the nearest hundredth

lakkis [162]

The square root of 45 is simplified to 3 root 5. Rounded in decimal form, 6.708

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2 years ago

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