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4 years ago

I need help with Geometry!!!!

Mathematics

1 answer:

Mariana [72]4 years ago

7 0

Answer:

COB and AOD

Step-by-step explanation:

Reminder: vertical angles are pairs of opposite angles that is made from intersecting 2 line/line segment.

In this case, to find pairs of opposite angles, you would look at angles that share a center but do not share a line segment.

If you check all of these, it's clear that COB and AOD is the only valid answer.

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mason worked 24 hours at the book shop at an hourly rate of $ 8.75 . how much medicare tax will be deducted from his paycheck th

Charra [1.4K]

First, find out how much he made in the week total: 24($8.75) = $210
The, find 1.45% of 210: (.0145)(210) = 3.045
*note that 1.45% = .0145*
Round that number to 3.05 and you have your answer

3 0

4 years ago

the height of a triangle is 9m less than its base. the area of the triangle is 56 m^2 find the length of the base (SHOW STEPS)

Veronika [31]

Hey there :)

We know the area formula of a triangle
$\frac{1}{2} (base)(height)$

We are given:
The area = 56 m²
The base = let p represent this
The height = 9 m less than the base = p - 9

Apply the formula
56 = $\frac{1}{2}$ × ( p ) × ( p - 9 )
56 = $\frac{1}{2}$ × ( p² - 9p )

Divide $\frac{1}{2}$ on both sides
56 ÷ $\frac{1}{2}$ = p² - 9p
112 = p² - 9p

Bring 112 to the other side and equate equation to 0
p² - 9p - 112

Factorise { Sum = -9 , Product = - 112 , therefore suitable factors = - 16 × 7 )
( p - 16 )( p + 7 ) = 0
↓ ↓
p = 16 p = - 7 ← Reject p = - 7 since length cannot be negative

So, the length of the base is 16 m

Check:
56 m² = $\frac{1}{2}$ × 16 × ( 16 - 9 )
56 m² = 8 × 7
56 m² = 56 m²

7 0

3 years ago

Factor y2 + 8y + 15

vovangra [49]

Y² + 8y + 15
since 8 and fifteen are positive, that means your factors are going to be positive
(y + )(y + )
What are the factors of 15 that add up to 8?

8 0

4 years ago

kelly plans to put her graduation money into an account and leave it there for 4 years while she goes to collge she recieves $75

DedPeter [7]

Answer:

$FV=887.3967212$ $

Step-by-step explanation:

Use the compound-interest formula:

$FV=PV(1+\frac{r}{n}) ^{nt}$

Where:

FV=Future value or the ending amount

PV=Present value or the initial amount=750

n=Number of compoundings in any one year=2

t=Total number of years=4

r=interest rate=0.0425

Now, replacing the data in the equation:

$FV=750*(1+\frac{0.0425}{2}) ^{2*4} =887.3967212$ $

4 0

3 years ago

What is the different between an orthocenter and a centroid?

Naddika [18.5K]

Circumcenter, Incenter, Orthocenter vs Centroid. Circumcenter: circumcenter is the point of intersection of three perpendicular bisectors of a triangle. Circumcenter is the center of the circumcircle, which is a circle passing through all three vertices of a triangle.

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4 years ago