All categories

3 years ago

WHAT AM I DOING WRONG?

Mathematics

2 answers:

hram777 [196]3 years ago

6 0

Answer:

you are doing -4. so the first parenthesis -4(x+2x+1) is incorrect.

Step-by-step explanation:

Hope this helps plz hit the crown :D

timurjin [86]3 years ago

5 0

Answer:

-4(x-4)²+9y(y+4)=0

Step-by-step explanation:

If we put the -64 with the x’s instead of the y’s, we get:

-4x²+32x-64+9y²+36y=0

-4(x²-8x+16)+9y(y+4)=0

-4(x-4)²+9y(y+4)=0

You might be interested in

How do you write 77/20 in a decimal

Sveta_85 [38]

Writing it as a decimal would be 3.85 you just divide it

7 0

3 years ago

Read 2 more answers

A circle with a radius of 1/2 ft is dilated by a scale factor of 8. Which statements about the new circle are true? Check all th

AfilCa [17]

The circle is being dilated by a factor of 8 so the radius will be 8 times the original radius (4 ft).

The circumference of a circle = $2\pi r$ , so if r is replaced by $8r$ we get $C = 2\pi * 8r$ or just $C = 8*(2\pi r)$ .

Basically the circumference will be 8 times the original circumference.

If you plug in the original radius, into this new formula you get $C_{new} = 8*(2\pi * \frac{1}{2}) = 8\pi \: ft$

The area of a circle = $\pi r^2$ , so if r is replaced by $8r$ we get $A = \pi*(8r)^2$ or just $A = 64\pi r^2$

Basically the area will be 64 times the original area.

If you plug in the original radius into this new formula you get $A = 64\pi * (\frac{1}{2})^2 = 16\pi \: ft^2$

The answers are A, C, F, G, and H

8 0

3 years ago

Read 2 more answers

A 3lbs of apples cost $2.91, what will be delivered cost of 8lbs of apples

nataly862011 [7]

3x = 8(2.91)
x = $7.76

6 0

3 years ago

Read 2 more answers

A function f(x) has a domain of [-7, 2) ∪ (4, ∞), and a range of (-1, 2) ∪ (2,∞)

padilas [110]

It’s not infinity I can tell you that XD

6 0

3 years ago

State if the triangle is acute obtuse or right

Dmitrij [34]

Answer:

It should be obtuse.

Step-by-step explanation: if i'm not mistaken it has to be obtuse. sorry i'm still learning i'm a beginner but, i'm volunteering to help everyone anyways because i'm a very nice person.

8 0

3 years ago

Read 2 more answers