3 years ago

I need help can you help me,,plz

Mathematics

2 answers:

lapo4ka [179]3 years ago

6 0

The answer would be 20 or 9

professor190 [17]3 years ago

4 0

I think it would be 9

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Please someone answer! please hurry . i’ll give you the brainliest!! please

Harlamova29_29 [7]

Answer:ABD is equal to CDB

Step-by-step explanation:

The reason you can tell is if you was to fold them both they would match up

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2 years ago

Type the correct answer in each box.

Mariulka [41]

Answer:

$(x-5)^2+(y+4)^2=100$

Step-by-step explanation:

step 1

Find the radius of the circle

we know that

The distance between the center and any point that lie on the circle is equal to the radius

we have the points

(5,-4) and (-3,2)

the formula to calculate the distance between two points is equal to

$d=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}}$

substitute the values

$r=\sqrt{(2+4)^{2}+(-3-5)^{2}}$

$r=\sqrt{(6)^{2}+(-8)^{2}}$

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step 2

Find the equation of the circle

we know that

The equation of a circle in standard form is equal to

$(x-h)^2+(y-k)^2=r^2$

where

(h,k) is the center

r is the radius

we have

$(h,k)=(5,-4)\\r=10\ units$

substitute

$(x-5)^2+(y+4)^2=10^2$

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6 0

3 years ago

Solve. You must factor first.<br><br> 2n^2 +9n - 35=0

Ksivusya [100]

Answer:

Step-by-step explanation:

2n² + 9n - 35 = (2n-5)(n+7)

n = 2.5, -7

7 0

3 years ago

Read 2 more answers

The radius of a basketball hoop is 9 inches. Which expression can be used to find the hoop's circumference in inches?

ratelena [41]

C = pi * r ^squared
r = is radius
square the radius, multiple by r
or
2 x pi x r

3 0

3 years ago

Read 2 more answers

choli [55]

Answer: B.x^3+4x^2-19x+14 is correct

Step-by-step explanation:

(x + 7)(x2 – 3x + 2)

Multiplying both

x^3-3x^2+2x+7x^2-21x+14

x^3+4x^2-19x+14

7 0

2 years ago