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3 years ago

Help pleaseeeeekwkwkwksksksksksks

Mathematics

2 answers:

Kamila [148]3 years ago

6 0

Answer: D

Step-by-step explanation:

it equals 15/12

olga nikolaevna [1]3 years ago

5 0

Answer:

The answer is d :)

Step-by-step explanation:

5 + 4 + 3 + 2 +1 = 15

so D would equal 15/12

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Solve for x: x - 9 = 15 A. 6 B. 24 C. -24 D. -6

Oduvanchick [21]

Answer:

X = 24

Step-by-step explanation:

Add 9 To Both Sides

X - 9 + 9 = 15 + 9

Simplify

X = 24

Best Of Luck,

- I.A. -

4 0

3 years ago

Read 2 more answers

Write the standard form of the equation of a line if the point on the line nearest to the origin is at (6, 8).

Alchen [17]

Answer:

$\large\boxed{y=\dfrac{4}{3}x}$

Step-by-step explanation:

The line passes through the origin has an equation y = mx

m - slope

The formula of a slope of a line passes through the origin

and a point (x, y):

$m=\dfrac{y}{x}$

We have the point (6, 8). Substitute:

$m=\dfrac{8}{6}=\dfrac{8:2}{6:2}=\dfrac{4}{3}$

Finally:

$y=\dfrac{4}{3}x$

4 0

3 years ago

Three consecutive vertices of a parallelogram are (– 2, 1); (1, 0) and (4, 3). Find the coordinate of the fourth vertex and find

antiseptic1488 [7]

Answer:

D(1,4) - the fourth vertex, the area is equal to 12

Step-by-step explanation:

A(2,-1), B(1,0),C(4,3), They are consecutive, we need to find the point D, find the midpoint of AC (O)

xo= (xA+xc)/2 x0= (-2+4)/2=1

y0=(yA+yC)/2 y0= (1+3)/2=2

0(1,2)

O is the midpoint of BD, so let's find the vertex D

X0= (xB+xD)/2 1= (1+xD)/2 xD=1

y0= (yB+yD)/2 2= (0+yD)/2 yD=4

D(1,4)

the vector DA is (-2-1, 1-4)= (-3,-3)

the vector DC is (4-1, 3-4)= (3,-1)

The modul of DC is sqrt ((-3)^2+(-3)^2)= 3*sqrt2(the length of the side Dc)

The modul of DA is sqrt (3^2+(-1)^2)= sqrt10(the length of the side DA)

cosD= (-3*3+(-3)(-1))/3*sqrt2*sqrt10=-6/3*2*sqrt5=-1/sqrt5

sinD= sqrt (1- 1/5)=2/ sqrt5

S=3sqrt2*sqrt10*2/sqrt5= 12

6 0

2 years ago

Order pair of x=y+2 and 2y=x-1

EastWind [94]

x=y+2
2y=x-1
substitute x=y+2 into 2y=x-1

2y=x-1
2y=y+2 -1
2y - y = 1
y = 1

x=y+2
x=1+2
x=3

answer
x = 3 and y = 1

5 0

3 years ago

Which of the followingis multiplicative of -a? (-1/a a 1 1/a)

Elodia [21]

Given:

The given value is $-a$ .

To find:

The multiplicative inverse of $-a$ .

Solution:

We know that $y$ is the multiplicative interval of $x$ if $xy=1$ .

Let $x$ be the multiplicative inverse of the given value $-a$ . Then,

$(-a)\times x=1$

Divide both sides by $-a$ .

$x=\dfrac{1}{-a}$

$x=-\dfrac{1}{a}$

Therefore, the multiplicative inverse of $-a$ is $-\dfrac{1}{a}$ . Hence the correct option is A.

4 0

3 years ago