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2 years ago

Please help me :( ill mark you brainliest <3 (maths) 20 points xxx

Mathematics

2 answers:

wel2 years ago

8 0

Answer:

a) yes

b) could not understand

Oksanka [162]2 years ago

5 0

Answer:

yes

Step-by-step explanation:

the graph is spring through the graph

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$37 dinner; 15% tip whats the total cost

kogti [31]

37*.15=5.55
37+5.55=42.55

4 0

2 years ago

For f(x)=2x+1 and g(x)=x^2-7 find (f•g)(x)

skad [1K]

(f•g)(x) = (2x+1) (<span>x^2-7)
</span>(f•g)(x) = 2x^3 + x^2- 14x - 7

............................................

8 0

3 years ago

Please help!

crimeas [40]

Answer:

The zeros are:

$x =4, x=2, x = 5$

The function has three distinct real zeros.

Hence, option (B) is true.

Step-by-step explanation:

Given the expression

$h\left(x\right)=\left(x-4\right)^2\left(x^2-7x+\:10\right)$

Let us determine the zeros of the function by putting h(x) = 0 and solving the expression

$0=\left(x-4\right)^2\left(x^2-7x+10\right)$

switch sides

$\left(x-4\right)^2\left(x^2-7x+10\right)=0$

$x^2-7x+\:10=\left(x-2\right)\left(x-5\right)$

$\left(x-4\right)^2\left(x-2\right)\left(x-5\right)=0$

Using the zero factor principle

$\mathrm{If}\:ab=0\:\mathrm{then}\:a=0\:\mathrm{or}\:b=0\:\left(\mathrm{or\:both}\:a=0\:\mathrm{and}\:b=0\right)$

$x-4=0\quad \mathrm{or}\quad \:x-2=0\quad \mathrm{or}\quad \:x-5=0$

$x =4, x=2, x = 5$

Thus, the zeros are:

$x =4, x=2, x = 5$

It is clear that there are three zeros and all the zeros are distinct real numbers.

Therefore,

The function has three distinct real zeros.

Hence, option (B) is true.

4 0

2 years ago

Two skaters are racing toward the finish line of a race. The first skater has a 40 m lead and is traveling at a rate of 12 m/s.

ivanzaharov [21]

The second skater wont pass him, he is ahead and they are going the same speed

3 0

3 years ago

A triangle has one side length of 2x

Orlov [11]

The simplified expression that represents the total perimeter of the triangle is 2x^2 + 10x + 3

<h3>How to determine the perimeter?</h3>

The side lengths are given as:

2x^2 + 5x + 3, 2 + 2x and 3x - 2

Add these lengths to determine the perimeter (P)

P = 2x^2 + 5x + 3 + 2 + 2x + 3x - 2

Collect like terms

P = 2x^2 + 5x + 2x + 3x + 3 + 2 - 2

Evaluate the like terms

P = 2x^2 + 10x + 3

Hence, the simplified expression that represents the total perimeter of the triangle is 2x^2 + 10x + 3