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3 years ago

Factor the trinomial below x^2-13x+40

Mathematics

1 answer:

sdas [7]3 years ago

7 0

Answer:

(x - 8)(x - 5)

Step-by-step explanation:

Which two numbers multiply to 40 and add to -13?

-8 and -5

Rewrite the expression:

(x - 8)(x - 5)

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8. The trapezoids are similar. The area of the smaller trapezoid is 131 m2. Find the area of the larger trapezoid to the nearest

kolbaska11 [484]

Answer:

$3,726\ m^{2}$

Step-by-step explanation:

step 1

Find the scale factor

we know that

If two figures are similar, then the ratio of its corresponding sides is equal to the scale factor

Let

z----> the scale factor

x----> corresponding side of the larger trapezoid

y----> corresponding side of the smaller trapezoid

$z=\frac{x}{y}$

we have

$x=64\ m$

$y=12\ m$

substitute

$z=\frac{64}{12}$

step 2

Find the area of the larger trapezoid

we know that

If two figures are similar, then the ratio of its areas is equal to the scale factor squared

Let

z----> the scale factor

x----> area of the larger trapezoid

y----> area of the smaller trapezoid

$z^{2}=\frac{x}{y}$

we have

$z=\frac{64}{12}$

$y=131\ m^{2}$

substitute

$(\frac{64}{12})^{2}=\frac{x}{131}$

$x=(\frac{4,096}{144})(131)$

$x=3,726\ m^{2}$

5 0

3 years ago

PLEASE HELP FOR MATH. I NEED HELP WITH THIS. 15 POINTS

lys-0071 [83]

Answer:

x^2+10x+25 is a polynomial

Step-by-step explanation:

A polynomial is an expression with exponets such as x^2 therefore your eqation that will become x^2+10x+25 is always a polynomial

Assuming you meant (x+5)^2

7 0

2 years ago

Name a pair of vertical and adjacent angles in each figure. Find m<1

Grace [21]

Answer:

80 degrees

Step-by-step explanation:

Vertical angles are congruent, meaning that if a vertical angle is 80 degrees, the other vertical angle is 80 degrees; they have the same angle measure.

m < 1 = 80 degrees

3 0

2 years ago

A function is graphed on the coordinate plane. What is the value of the function when x = 2 ? Question 4 options:

Greeley [361]

I believe the answer is 4/3

8 0

3 years ago

A farmer has 5 times as many cows as horses.

Assoli18 [71]

Answer:

The correct answer is !40 cows and 28 Horses

Step-by-step explanation:

h+5h=168

6h=168

h=168/6

h=28 horses.

5*28=140 cows.

Proof:

28=140=168

168=168

7 0

3 years ago