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3241004551 [841]

3 years ago

12

How do you solve these 2 problems

1 answer:

ella [17]3 years ago

5 0

11.The answer is -13
13.The answer is -108

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Write the following question expression in simplest binomial form 4(3x-2)-2(4x+5)

Oduvanchick [21]

$4(3x-2)-2(4x+5)$

$12x-8-8x-10
$

$(12x-8x)+(-8-10)
$

$4x-18
$

4 0

3 years ago

R (-3,1) and S (-1,3) are points on a circle. If RS is a diameter, find the equation of the circle.

ELEN [110]

Answer:

$\sf (x+2)^2+(y-2)^2=2$

Step-by-step explanation:

If RS is the diameter of the circle, then the midpoint of RS will be the center of the circle.

$\sf midpoint=\left(\dfrac{x_s-x_r}{2}+x_r,\dfrac{y_s-y_r}{2}+y_r \right)$

$\sf =\left(\dfrac{-1-(-3)}{2}+(-3),\dfrac{3-1}{2}+1 \right)$

$\sf =(-2, 2)$

Equation of a circle: $\sf (x-h)^2+(y-k)^2=r^2$

(where (h, k) is the center and r is the radius)

Substituting found center (-2, 2) into the equation of a circle:

$\sf \implies (x-(-2))^2+(y-2)^2=r^2$

$\sf \implies (x+2)^2+(y-2)^2=r^2$

To find $\sf r^2$ , simply substitute one of the points into the equation and solve:

$\sf \implies (-3+2)^2+(1-2)^2=r^2$

$\sf \implies 1+1=r^2$

$\sf \implies r^2=2$

Therefore, the equation of the circle is:

$\sf (x+2)^2+(y-2)^2=2$

4 0

2 years ago

Tanisha plants 2/3 of her garden with flowers.She covers 1/4 of this part of the garden with roses.What part of her whole garden

Talja [164]

Answer:

$\frac{1}{6}$

Step-by-step explanation:

We can find this by multiplying the two-thirds of Tanisha's garden by one-fourth, which is $\frac{2}{3}*\frac{1}{4}=\frac{1}{6}$ .

8 0

3 years ago

Pls help, pls just only tell me how to solve

sladkih [1.3K]

To find f(2), look and see where the line crosses the Y axis, when The line is on X 2.

The line is on Y = -2, so the answer would be -2.

5 0

3 years ago

A daily supply of oxygen for a particular multicellular organism is provided by 625 sqaure feet of lawn. A total of 1,250 sqaure

loris [4]

Answer:

2

Step-by-step explanation:

From the Question:

For daily supply of oxygen for a particular multicellular organism 625, square feet of lawn I needed.

Simply, 1250 feet of lawn will make supplies for:

= 1250/ 625

= 2

2 multicellular organism.

4 0

3 years ago