3 years ago

Help pls_____________

Mathematics

1 answer:

Arlecino [84]3 years ago

5 0

Answer:

f(x)=6x³ - 8x

Step-by-step explanation:

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What is the radius of a circle that has a diameter of 199

wolverine [178]

Answer:

99.5

Step-by-step explanation:

Radius = Diameter/2

199/9

=99.5metres

6 0

2 years ago

( NEEDED ASAP! )

bulgar [2K]

Answer:

y=3r+5

Step-by-step explanation:

Break up the sentance.

Capon city has 5 more than 3 times as many residents as harbor city.

The sentance above can be written like this: y=5+3x. Since they want r to represent the number of people in Harbor city, use r in place of x.

Capon city=y

has=equal sign

5 more=+5

3 times as many=3r

y=3r+5

4 0

2 years ago

2) Juan had $622 in his checking account. He deposited a check for $180, and $100

adoni [48]

Answer:

867

Step-by-step explanation:

622+180+100=902

902-35=867

3 0

2 years ago

Find the equation of a parabola with a vertical axis and its vertex at the origin and passing through the point (-2, 3).

jonny [76]

Answer:

$y=\frac{3}{4}x^2$

Step-by-step explanation:

Hi there!

Because we're given the vertex of the parabola, we can determine its equation in vertex form:

$y=a(x-h)^2+k$ where the vertex is $(h,k)$

Plug in the vertex (0,0)

$y=a(x-0)^2+0\\y=a(x)^2\\y=a(x-0)^2+0\\y=ax^2$

Now, we must solve for a. Plug in the given point (-2,3) and solve for a:

$3=a(-2)^2\\3=4a\\\frac{3}{4} =a$

Therefore, the value of a is $\frac{3}{4}$ . Plug this back into $y=ax^2$ :

$y=\frac{3}{4}x^2$

I hope this helps!

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3 years ago

Write what kind of quadrilateral you see in each figure and determine exactly what kind of parallelogram, trapezoid, or trapezoi

irinina [24]

Answer:

Step-by-step explanation:

66.

rectangle or square (if sides are equal.)

67.

trapezoid

trapezoid.

69.

scalene quadrilateral.

7 0

3 years ago