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4 years ago

PLS HELP find the unknown side of the triangle below (round to the nearest tenth)

Mathematics

1 answer:

Nonamiya [84]4 years ago

7 0

22.9 is the closest but not exact. It was probably rounded off.

I used the formula: leg^2+leg^2=hypotenuse^2

(You can use that formula for any right triangle.)

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Graph the line with slope 2/3 passing through the point (-3,-3)

Yakvenalex [24]

$▪▪▪▪▪▪▪▪▪▪▪▪▪ {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪$

The equation of given line is ~

$y = \dfrac{2}{3} x - 1$

$\large \boxed{ \mathfrak{Step\:\: By\:\:Step\:\:Explanation}}$

Let's use the point slope form of line to find the equation of given line ~

that is ~

$y - y_1= m(x - x_1)$

$y - ( - 3) = \dfrac{2}{3} (x - ( - 3))$

$y + 3 = \dfrac{2}{3} (x + 3)$

$y + 3 = \dfrac{2}{3} x + 2$

$y = \dfrac{2}{3} x + 2 - 3$

$y = \dfrac{2}{3} x - 1$

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3 years ago

A caterer is preparing meals for a party of 78 guests. If about 1/4 of the guests want steaks, about how many steaks should the

Ann [662]

Answer:
You want to divide 78 by 4, so the answer will be 17.
And to check, 17x4=78, so it is correct.

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3 years ago

A store marks up the price of a sweater by $7.35. The total cost of the sweater is 25.65. How much does the store pay for the sw

UNO [17]

Answer: the store paid $18.3 for the sweater

Step-by-step explanation:

Let x represent the amount that the store paid for the sweater.

A store marks up the price of a sweater by $7.35. This means that the new or current price of the sweater at the store would be

7.35 + x

The total cost of the sweater is 25.65. Therefore, an equation to represent the problem would be

7.35 + x = 25.65

Subtracting 7.35 from the left hand side and the right hand side of the equation, it becomes

7.35 + x - 7.35 = 25.65 - 7.35

x = $18.3

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3 years ago

PLEASEEE HELP MEEEE<br><br>NO LINKSSS

Artemon [7]

Answer:

$\huge\boxed{(2,\ 3);\ (-1,\ 6)}$

Step-by-step explanation:

$f(x)=x^2-2x+3\to y=x^2-2x+3\\f(x)=-x+5\to y=-x+5\\\\\left\{\begin{array}{ccc}y=x^2-2x+3&(1)\\y=-x+5&(2)\end{array}\right$

substitute (1) to (2):

$x^2-2x+3=-x+5$ add x to both sides

$x^2-2x+x+3=-x+x+5$

$x^2-x+3=5$ subtract 5 from both sides

$x^2-x+3-5=5-5$

$x^2-x-2=0\\\\x^2+x-2x-2=0\\\\x(x+1)-2(x+1)=0\\\\(x+1)(x-2)=0\iff x+1=0\ \vee\ x-2=0\\\\\boxed{x=-1\ \vee\ x=2}$

substitute the values of x to (2):

$x=-1\\\\y=-(-1)+5=1+5=6\\\\\huge\boxed{(-1,\ 6)}\\\\x=2\\\\y=-2+5=3\\\\\huge\boxed{(2,\ 3)}$

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3 years ago

Coordinate and it's reflection over the x- axis be an even number

PilotLPTM [1.2K]

Depends on the original point

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3 years ago

PLS HELP find the unknown side of the triangle below (round to the nearest tenth) ​

PLS HELP find the unknown side of the triangle below (round to the nearest tenth)