3 years ago

Please help me with this question

Mathematics

1 answer:

lianna [129]3 years ago

3 0

Answer:

Step-by-step explanation:

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F(x) = 2x3 + 7x2 – 4x – 5

qaws [65]

Answer:

Its 3

Step-by-step explanation:

7 0

3 years ago

Solve the inequality for x.

Taya2010 [7]

Answer:

＋10 on both sides so

X+10-(10)>14-(10)

x>4

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3 years ago

Read 2 more answers

What are the coordinates of the x-intercepts of the parabola y = x² - 8x + 15?

tamaranim1 [39]

Answer:

(3, 0) and (5, 0)

Step-by-step explanation:

we have

$y=x^{2}-8x+15$

we know that

The x-intercepts are the values of x when the value of y is equal to zero

For y=0

$x^{2}-8x+15=0$

The formula to solve a quadratic equation of the form

$ax^{2} +bx+c=0$

is equal to

$x=\frac{-b\pm\sqrt{b^{2}-4ac}} {2a}$

in this problem we have

$x^{2}-8x+15=0$

$a=1\\b=-8\\c=15$

substitute in the formula

$x=\frac{-(-8)\pm\sqrt{-8^{2}-4(1)(15)}} {2(1)}$

$x=\frac{8\pm\sqrt{4}} {2}$

$x=\frac{8\pm2} {2}$

$x=\frac{8+2} {2}=5$

$x=\frac{8-2} {2}=3$

x=3, x=5

therefore

The x-intercepts are (3,0) and (5,0)

4 0

3 years ago

What is an equation for "five more than the product of 7 and a number t?"

fiasKO [112]

the answer is 5+(7t)

6 0

3 years ago

Somebody please prove if a triangle with side length of 6,8,10 is a right triangle using the Pythagorean theorem!! Will mark Bra

BabaBlast [244]

Answer:
Pythagorean’s theorem states that if a^2 + b^2 = c^2 where c is the hypotenuse and a and b are the side lengths of the right triangle

Given that we can plug in
a= 6 , b = 8 , c = 10

We get an equation:

6^2 + 8^2 = 10^2
36 + 64 = 100
100 = 100

5 0

3 years ago