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2 years ago

How do you graph 3x= -135

Mathematics

2 answers:

statuscvo [17]2 years ago

7 0

Answer:

You would graph a vertical line at (-49, 0)

Step-by-step explanation:

3x = -135

Divide both sides by 3

x = -45

You would graph a vertical line at (-49, 0)

P.S., that system acts strange sometimes so be sure to only do one square up once you press -45. :)

myrzilka [38]2 years ago

3 0

Answer:

see below

Step-by-step explanation:

first isolate x

3x = -135

divide both sides by 3

3x/3 = x

-135/3 = -45

x = -45

we can then graph it

x is gonna be equal to -45

so draw a point on the x intercept at -45 and draw a vertical line going up and down

it should look like the graph shown below

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Last year, 800 students attended the career fair at west high school. this year,the number of students who attended the career f

Delvig [45]

Answer:

840

Step-by-step explanation:

Last year, 800 students attended the career fair at West High School.

And, this year the number of students who attended the career fair increased by 5%.

We are asked how many students attended the career fair at West High School this year.

Therefore, the number of students attended the career fair at West High School will be $800[1+\frac{5}{100} ] =800 \times 1.05 = 840$ . (Answer)

3 0

2 years ago

Find the formula for the area A and the perimeter P of the shape shown find the area and perimeter when R is 5 cm find R when A

Ghella [55]

Answer:

1)Area; A = ¼πr²

Perimeter; P = πr/2 + 2r

2)A = 19.63 cm²

P = 17.85 cm

3) r = 8.885 cm

4) r = 14 cm

Step-by-step explanation:

This is a quadrant of a circle. Thus;

Area of a circle is πr². A quadrant is a quarter of a circle. Thus;

Formula for Quadrant Area is; A = ¼πr²

A) Perimeter of a circle is 2πr. Thus, perimeter of a quadrant is a quarter of the full circle perimeter.

Formula for the quadrant perimeter in the image given is;

P = 2πr/4 + 2r

P = πr/2 + 2r

B) When r is 5 cm;

A = ¼π(5)²

A = 19.63 cm²

P = π(5)/2 + 2(5)

P = 17.85 cm

C) when A is 100cm²:

¼πr² = 100

r² = 100 × 4/π

r² = 78.9358

r = √78.9358

r = 8.885 cm

D) when P = 50 cm.

50 = πr/2 + 2r

50 = (½π + 2)r

r = 50/(½π + 2)

r = 14 cm

6 0

2 years ago

What is m?<br><br> please help

kkurt [141]

Given:

$\Delta ABC\sim \Delta QRS$

To find:

The missing value of m.

Solution:

We have,

$\Delta ABC\sim \Delta QRS$

Corresponding parts of similar triangles are proportional.

$\dfrac{AB}{QR}=\dfrac{AC}{QS}$

Putting the given values, we get

$\dfrac{m}{10}=\dfrac{2}{4}$

$\dfrac{m}{10}=\dfrac{1}{2}$

Multiply both sides by 10.

$\dfrac{m}{10}\times 10=\dfrac{1}{2}\times 10$

$m=5$

Therefore, the value of m is 5.

5 0

3 years ago

25 points please help!

AnnZ [28]

Answer:

x= 10

Step-by-step explanation:

If line m is parallel to line n,

(8x +50)°= 130° (corr. ∠s, m//n)

8x +50= 130

Bring constants to one side:

8x= 130 -50

8x= 80

Divide both sides by 8:

x= 80 ÷8

x= 10

5 0

2 years ago

Find the coordinates of the midpoint M of ST. Then find the distance between points S and T. Round the distance to the nearest

ololo11 [35]

Answer:

Step-by-step explanation:

M is the midpoint

=> $\left \{ {{x=\frac{6+7}{2} } \atop {y=\frac{-3-2}{2} }} \right$

⇔ $\left \{ {x=\frac{13}{2} } \atop {y=\frac{-5}{2}}} \right.$

⇒M( $\frac{13}{2}$ ; $\frac{-5}{2}$ )

ST= $\sqrt{(7-6) ^{2} +(-2+3)^{2}$ = $\sqrt{2}$ =1.414

8 0

2 years ago