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3 years ago

17. Plies in the interior of ZRST. mZRSP = 40° and

Mathematics

1 answer:

Ilia_Sergeevich [38]3 years ago

7 0

I think the answer is c

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What are the solution of the equation 2|×+7|-3=5

marin [14]

Answer:

x = -3

Step-by-step explanation:

2(x + 7) - 3 = 5 (given)

2x + 14 - 3 = 5 (Distributive Property)

2x + 14 = 8 (Addition Property of Equality)

2x = -6 (Subtraction Property of Equality)

x = -3 (Division Property of Equality)

6 0

3 years ago

How to turn this equation: <br> y= -1.02(x-3)^2+9.25<br> into factored form

MatroZZZ [7]

Answer:

$y=(102x-306-5\sqrt{3774})(102x-306+5\sqrt{3774})$

Step-by-step explanation:

You first equate it to zero to get:

$-1.02(x-3)^2+9.25=0$

Then solve using square root method

$-1.02(x-3)^2=-9.25$

$(x-3)^2=\frac{-9.25}{-1.02}$

$(x-3)^2=\frac{925}{102}$

$x=3\pm\sqrt{\frac{925}{102}}$

$x=3\pm{\frac{5\sqrt{3774}}{102}}$

$x={\frac{306\pm5\sqrt{3774}}{102}}$

Now work it backwards

$102x-(306\pm5\sqrt{3774})=0$

$(102x-306-5\sqrt{3774})(102x-306+5\sqrt{3774})=0$

Hence the factored form is:

$y=(102x-306-5\sqrt{3774})(102x-306+5\sqrt{3774})$

8 0

3 years ago

Makeeya only has $25 to spend on a custom T-shirt. It costs $10 for a plain T-shirt, and there is a charge of $$1.50 for each sq

kodGreya [7K]

Answer:

10 square inches

Step-by-step explanation:

cost of a plain t-shirt = $10

cost of 1 square inch of design addition = $1.50

let there be x square inches of design

then cost of x square inches of design = x*cost of 1 square inch of design

= 1.50*x = 1.5x

Total cost for t-shirt with x square inches of design = cost of a plain t-shirt + cost of x square inches of design = 10 + 1.5 x

It is given that Makeeya has only $25, then total cost which can be afforded by him will be $25 only

Thus,

10 + 1.5 x = 25

=> 1.5x = 25-10 = 15

=> x = 15/1.5 = 10

Thus, Makeeya can put 10 square inches of design on her T-shirt.

4 0

3 years ago

Please help as much as you can :)

pantera1 [17]

9514 1404 393

Answer:

(x, y) = (3, 7)

Step-by-step explanation:

If you divide the second equation by 2, it becomes ...

-x +2y = 11

Adding this to the first equation gives you the value of y:

(x -y) +(-x +2y) = (-4) +(11)

y = 7 . . . . . . . . simplify

The first equation can be rearranged to give an expression for x:

x = y -4

x = 7 -4 = 3

Then the solution is seen to be (x, y) = (3, 7).

Personally, I like a graphing calculator for a quick and easy solution to many linear systems. (If the solutions are non-integers, it may not be so helpful.)

6 0

3 years ago

zhuklara [117]

2/3in = 1ft

30ft = ?in

30/(2/3)=45

45in

6 0

3 years ago