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love history [14]
3 years ago
9

Help please!!!!!!!!!!!!!!!! Asap

Mathematics
1 answer:
MrRa [10]3 years ago
4 0
Discriminant b^2-4ac =  (-9)^2 - 4*2*9  =  9
so there are 2 roots
because of the -9x and 9  they will both be positive
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In the diagram, the length of segment AB is 10 units and the radius of the circle centered at A is 4 units. Use this to create t
Leni [432]

A triangle is a three-edged polygon with three vertices. It is a fundamental form in geometry.

<h3>What is a triangle?</h3>

A triangle is a three-edged polygon with three vertices. It is a fundamental form in geometry. Triangle ABC denotes a triangle with vertices A, B, and C.

The two triangles can be made as shown below, the bigger triangle will be an equilateral triangle with each side measuring 10 units, while the smaller triangle will be an isosceles triangle and the measure of the same length side will be equal to the radius of the circle.

Learn more about Triangle:

brainly.com/question/2773823

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8 0
1 year ago
A guy wire 30 ft long supports an antenna at a point that is 24 ft above the base of the antenna.
GalinKa [24]
Use Pythagorean Theorem
c2 = a2 + b2
152 = a2 + 12
a2 = 152 - 122
=225 - 144 = 81
a = 9 ft
Distance from base of antenna = 9ft
4 0
2 years ago
PLEASE PLEASE HELP WILL MARK BRAINLIEST ✨
Hitman42 [59]

Answer:

The one at the bottom is "Neither"

The one that begins with (-4,14) is exponential.

The one that begins with (-3, 8)  is a linear

Step-by-step explanation:

5 0
3 years ago
Find the absolute value and the opposite of the integer.
Talja [164]
The absolute value is always non-negative!

So the absolute value of 57 is 57 itself, as it's non-negative (i.e. it's positive or 0).

Opposite value is the number with a different sign: an opposite value of a positive number is negative, so here it will be -57 .

The correct answer is C. 

7 0
3 years ago
Read 2 more answers
A teenager who is 5 feet tall throws an object into the air. The quadratic function LaTeX: f\left(x\right)=-16x^2+64x+5f ( x ) =
tia_tia [17]

Answer:

At approximately x = 0.08 and x = 3.92.

Step-by-step explanation:

The height of the ball is modeled by the function:

f(x)=-16x^2+64x+5

Where f(x) is the height after x seconds.

We want to determine the time(s) when the ball is 10 feet in the air.

Therefore, we will set the function equal to 10 and solve for x:

10=-16x^2+64x+5

Subtracting 10 from both sides:

-16x^2+64x-5=0

For simplicity, divide both sides by -1:

16x^2-64x+5=0

We will use the quadratic formula. In this case a = 16, b = -64, and c = 5. Therefore:

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

Substitute:

\displaystyle x=\frac{-(-64)\pm\sqrt{(-64)^2-4(16)(5)}}{2(16)}

Evaluate:

\displaystyle x=\frac{64\pm\sqrt{3776}}{32}

Simplify the square root:

\sqrt{3776}=\sqrt{64\cdot 59}=8\sqrt{59}

Therefore:

\displaystyle x=\frac{64\pm8\sqrt{59}}{32}

Simplify:

\displaystyle x=\frac{8\pm\sqrt{59}}{4}

Approximate:

\displaystyle x=\frac{8+\sqrt{59}}{4}\approx 3.92\text{ and } x=\frac{8-\sqrt{59}}{4}\approx0.08

Therefore, the ball will reach a height of 10 feet at approximately x = 0.08 and x = 3.92.

7 0
2 years ago
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