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3 years ago

30 POINTS IF YOU ANSWER. WILL MARK BRAINLIEST!!! PLEASE ANSWER SOON

Mathematics

2 answers:

Ksenya-84 [330]3 years ago

7 0

Answer:

22 people

Step-by-step explanation:

Using the concept of a Venn Diagram, you place the 3 people in the intersection. Then, you subtract the three from both groups to keep the balance.

Since you said "or", you just add the entirety of the population.

$(16 - 3) + (9 - 3) + 3 = 22$

Natali [406]3 years ago

3 0

Answer:

Step-by-step explanation:

n(DUC) = n(C) + n(D) - n(C^D)

n(DUC) = 9 + 16 - 3 = 22

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Find the equation of the line through point (8,−9) ( 8 , − 9 ) and perpendicular to 3+8=4 3 x + 8 y = 4 .

Leno4ka [110]

The equation of the line will be 3y + 8x = 165.

<h3>What is an equation?</h3>

It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.

Given that:-

Find the equation of the line through point (8,−9) ( 8, − 9 ) and perpendicular to 3 x + 8 y = 4.

The given equation of the line is:-

3 x + 8 y = 4.

The slope of this line will be:-

3 x + 8 y = 4.

8y = -3x + 4

y = -3 /8x + ( 1 / 2)

y = mx + c

m = -3 / 8

Since the line is perpendicular to the other line 3x +8y = 4 so the slope will be inverse and negative for the line.

So the slope of the line will be -8 / 3

The equation of the line passing through the point will be given as:-

y - y 1 = m ( x- x1)

y - (-9) = ( -8 / 3) ( x - 8)

Y + 9 = ( -8 / 3 ) ( x -8 )

3 y = -8x + 165

3y + 8x = 165

Therefore the equation of the line will be 3y + 8x = 165.

To know more about equations follow

brainly.com/question/2972832

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5 0

2 years ago

Trapezoid ABCD is graphed in a coordinate plane.

Ann [662]

Answer:

Step-by-step explanation:

he coordinates of the vertices of the trapezoid ABCD are:

A=(-5,-2)=(xa,ya)→xa=-5, ya=-2

B=(-1,2)=(xb,yb)→xb=-1, yb=2

C=(0,-1)=(xc,yc)→xc=0, yc=-1

D=(-2,-3)=(xd,yd)→xd=-2, yd=-3

yi x(i+1) xi yi xi y(i+1)

-5 -2

(-2)(-1)=2 -1 2 (-5)(2)=-10

(2)(0)=0 0 -1 (-1)(-1)=1

(-1)(-2)=2 -2 -3 (0)(-3)=0

(-3)(-5)=15 -5 -2 (-2)(-2)=4

S1=-10+1+0+4→S1=-5

S2=2+0+2+15→S2=19

Area: A=(1/2) Absolute value (S1-S2)

A=(1/2) Absolute value (-5-19)

A=(1/2) Absolute value (-24)

A=(1/2) (24)

A=24/2

A=12

The area of the trapezoid is 12 square units

8 0

3 years ago

Write a real world situation that could be represented by the equation shown below y= -10x - 15

stich3 [128]

Example (not a very likely example, however):

At 11 pm the temperature is -15 degrees F, and it continues to drop by 10 degrees F every hour.

3 0

3 years ago

5/14 - - 1/14 I will provide a picture

m_a_m_a [10]

Answer:

$\frac{3}{7}$

Step-by-step explanation:

Simplify: $\frac{5}{14} - (-\frac{1}{14}) = \frac{5}{14} + \frac{1}{14}$
$\frac{5}{14} + \frac{1}{14} = \frac{6}{14}$
$\frac{6}{14} = \frac{3}{7}$

I hope this helps!

3 0

3 years ago

State all integer values of xx in the interval \left[-1, 5\right][−1,5]

Aleks04 [339]

Answe67

Step-by-step explanation:

7 0

4 years ago