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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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Which expression can be used to represent the phrase “four less than seven”?

alexira [117]

Answer:

4-7 is four less than 7.

7 0

3 years ago

Read 2 more answers

Write a linear equation from the ordered pair (-2,8)

OlgaM077 [116]

The equation of a line that goes through the point (x1,y1) and has a slope of m is
y-y1=m(x-x1)

so, given the point (-2,8)
x1=-2
y1=8

y-8=m(x-(-2))
y-8=m(x+2)
the equation is y-8=m(x+2) where m is the slope
or you could rewrite it to get y=mx+2m+8

4 0

3 years ago

A.The observation deck of tall skyscraper 370 m above the street. Determine the time required for a penny to free fall from the

Ainat [17]

Answer:

8.68 seconds

Step-by-step explanation:

Given:

Height of the deck above the street, s = 370 m

Since the condition is of free falling

thus,

initial speed, u = 0

Acceleration of the penny = acceleration due to gravity, g = 9.81 m/s²

Now,

from Newton's equation of motion, we have

$s=ut+\frac{1}{2}at^2$

here,

s is the distance

a is the acceleration

t is the time

on substituting the values, we get

$370=0\times t+\frac{1}{2}\times9.81\times t^2$

t² = 75.433

t = 8.68 seconds

8 0

3 years ago

I will mark you the brainiest for the correct answer, please be correct, Have a good day and take care, thanks. ( VIEW THE IMAGE

Gwar [14]

First error is that the legs are a and b so a should be x and b is 6 and c is 10 the second error is at the end they did not take the square root to get x by itself the real answer should be
X^2 +6^2=10^2
X^2+36=100
X^2 =64
X=8

6 0

3 years ago

(c + 3) - 2c - (1 - 3c) = 2 what is this answer to this problem?

Eddi Din [679]

(c+3)-2c-(1-3c)=2
c+3-2c-1+3c=2
2c+2=2
2c=0
c=0

6 0

3 years ago