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3 years ago

Please answer CORRECTLY !!!!!!! Will mark BRAINLIEST !!!!!!!!!

Mathematics

1 answer:

Usimov [2.4K]3 years ago

8 0

Answer:

Maybe f(a) = 0.5b?

But it's not in terms of a.

Step-by-step explanation:

Simplify the equation:

-4a = -2b

a = 0.5b

Idk what next...

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What is the equation of a circle with the center(-9,-5) and radius equals 9

mezya [45]

Answer:

(x+9)^2+(y+5)^2=81

Step-by-step explanation:

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

(h,k)=center

r=radius

so if you just insert the center (-9,-5) and the r with 9

(x-(-9))^2+(y-(-5))^2=9^2

(x+9)^2+(y+5)^2=81

Hope that helps :)

6 0

3 years ago

Read 2 more answers

A necklace has and matching bracelet have two types of beads. The necklace has 12 large beads and 8 small beads and weighs 88 gr

miv72 [106K]

Weight of one large bead is 1.5 grams and weight of one small bead is 8.75 grams.

Step-by-step explanation:

Let,

Weight of one large bead = x

Weight of one small bead = y

According to given statement;

12x+8y=88 Eqn 1

5x+2y=25 Eqn 2

Multiplying Eqn 2 by 4

$4(5x+2y=25)\\20x+8y=100\ \ \ Eqn\ 3\\$

Subtracting Eqn 1 from Eqn 3

$(20x+8y)-(12x+8y)=100-88\\20x+8y-12x-8y=12\\8x=12$

Dividing both sides by 8

$\frac{8x}{8}=\frac{12}{8}\\x=1.5$

Putting x=1.5 in Eqn 1

$12(1.5)+8y=88\\18+8y=88\\8y=88-18\\8y=70$

Dividing both sides by 8

$\frac{8y}{8}=\frac{70}{8}\\y=8.75$

Weight of one large bead is 1.5 grams and weight of one small bead is 8.75 grams.

Keywords: linear equation, elimination method

Learn more about elimination method at:

#LearnwithBrainly

5 0

3 years ago

Use the FOIL method to find the product below.

Marina86 [1]

The answer is B. 35x2 + 34x + 8

8 0

3 years ago

What is the perimeter of a Polygon with vertices at (3,2),(3,9),(7,12),(11,9), and (11,2)?

jeka57 [31]

Answer:

The perimeter is 32.

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Anyone know this geometry question? Will give brainiest

Dafna11 [192]

The opposite angles equal each other, so X and Z are equal
using that we solve for x by setting them equal:

6x-60 = 2x+68

subtract 2x from each side:

4x -60 = 68

add 60 to each side:

4x = 128
divide both sides by 4
x = 128/4
x = 32

now we know x so we can solve everything else by replacing x with 32

WY = 3x+5 = 3(32)+5 = 96+5 = 101

angle Z = 2x+68 = 2(32)+68 = 64+132

the answer is C

5 0

3 years ago