find value of x!!! this is geometry

Answer:

QR = 4x - 6

Step-by-step explanation:

A triangle is a polygon that has three sides and three angles. There are different types of triangles such as equilateral triangle, isosceles triangle, scalene triangle, right angled triangle.

The perimeter of a triangle is a measure of the length of the sides. It is the sum of all the length of the three sides of the triangle.

From the question:

Perimeter of triangle PQR = PQ + PR + QR

But PR = 3x - 1, PQ = x + 1, Perimeter of PQR = 8x - 6.

Therefore substituting gives:

8x - 6 = (x + 1) + (3x - 1) + QR

8x - 6 = (x + 3x + 1 - 1) + QR

8x - 6 = 4x + QR

QR = (8x - 6) - 4x

QR = 4x - 6

Answer:

B) 4

Step-by-step explanation:

Use the slope formula:

slope [tex]m = \frac{y_2 - y_1}{x_2 - x_1}[/tex]

Let:

[tex](x_1 , y_1) = (1 , -2)\\(x_2 , y_2) = (2 , 2)\\[/tex]

Plug in the corresponding numbers to the corresponding variables:

slope:

[tex]m = \frac{2 - (-2)}{2 - 1} \\m = \frac{2 + 2}{2 - 1}\\m = \frac{4}{1} = 4[/tex]

B) 4 is your answer.

~

Answer:

65

Step-by-step explanation:

use the following equation

aₙ=a₁+(n-1)d

Where d is the common difference

n is the term

a₁ is the first term

the common difference is -3 (149-152)

this means we have

152+(30-1)*-3

Compute this and get

65

Answer:

C

Step-by-step explanation:

If you think about it hard enough, and look at it real hard, you can see. Think of like a capital L. 7 tall and 7 wide. I'm not sure but thats what I think.

Answer:

=−12x+12

Step-by-step explanation:

If rectangular field has an area of 646 square feet. The width of the field is 19 feet. Then length of the field is 71.77 feet.

The area of Rectangle is length times of width.

Given,

Area of rectangular field is  646 square feet.

width of the field is 19 feet.

We need to find the length of the field.

Area of rectangle=Length×Width

646=Length×19

Divide both sides by 19

Length=646/9

Length=71.77 feet

Hence 71.77 feet is the length of the field.

To learn more on Areas of rectangle click:

https://brainly.com/question/20693059

#SPJ5

Answer:

5/10

Step-by-step explanation:

.5 is in the tenths place

so the bottom number (denominator) would be 10

Answer:  12.6 ft

Step-by-step explanation:

a = 8.8 ft

b = 9 ft

c = ?

Since it is a right triangle, we can use the Pythagorean Theorem to solve for missing side c, the hypotenuse.

a^2 + b^2 = c^2

(8.8)^2 + (9)^2 = c^2

158.44 = c^2

(158.44)^(1/2) = c

12.5873 = c

c = 12.6 ft (rounded to the nearest tenth)

Answer:

Option (4)

Step-by-step explanation:

From the picture attached,

Side lengths of the triangles have been given in the picture attached.

If these triangles are similar, their corresponding sides will be proportional.

By this property of similarity,

[tex]\frac{19.5}{5}= \frac{20}{8}[/tex]

3.9 = 2.5

Which is not true.

Therefore, these triangles are not similar.

Option (4) will be the answer.

Answer:

y = 53

hope it's helpful ❤❤❤❤

.

THANK YOU.

Answer:

1/8

Step-by-step explanation:

1/2*1/4=1/8

We just need to multiply 1/2 and 1/4 and that equals 1/8

Answer:

30%

Step-by-step explanation:

Answer:

y = -2

Step-by-step explanation:

The horizontal line through this point has a slop of 0

Answer:

x=-1, y=2

Step-by-step explanation:

2(2x+4)=6x+10

2x=-2

x=-1

y=2(-1)+4

y=2

Answer:

The second one pictured

Step-by-step explanation:

Answer:

Step-by-step explanation:

Sorry but there's know question.

Answer:

3.5 Inches

Step-by-step explanation:

Answer:

1/15

Step-by-step explanation:

Answer:

0.06

Step-by-step explanation:

Turn 1/3 to a decimal, which becomes .3

Then you do .3/5 which equals 0.06

Hope this helps.

Answer:

62.5% of the parking spaces are taken.

Step-by-step explanation:

Given

To determine

What percent of the parking  spaces are taken?

The percentage of taken spaces of the part can be determined using the formula

% of Taken spaces = [Taken spaces / Total Spaces ] × 100

                               = [1875 / 3000] × 100

                               = 0.625 × 100

                               = 62.5%

Therefore, 62.5% of the parking spaces are taken.

Answer:

Tax would be 4500$

Step-by-step explanation:

15/100 = x/30000

Do 15 x 30000 = 450000

then divide 450000 by 100 = 4500

Answer:

30%

Step-by-step explanation:

Selma spent 3/10 of her allowance on a new backpack.

Hence, the percent of her allowance that she spent is calculated as:

Fraction of allowance spent on Backpack × 100

= 3/10 × 100

= 0.3/1 × 100

= 30%

Therefore, Selma spent 30% of her allowance on a new backpack.

Answer:

B.3

Step-by-step explanation:

Answer:

the anser is B

Step-by-step explanation:

3+7=10

7-3=4

done

Answer:

Step-by-step explanation:

If scientific notaion it would be 3p^2 if not it would be 3p times 2

Answer: 3p^2

Step-by-step explanation:

i don't think there is much of an explanation for this one, you are simply multiplying by P again, so you just turn it into an exponent. :)

Answer:

so it looks like it's $245 or it's $85

Step-by-step explanation:

because your equation is 5n+45

$5 dollars earned for every n(magazine) sold.

Alternatively:

if she gets 5 dollars for every 10 sold then after selling 40 it would be

40/5=8 then it becomes 8*5+45=85

Answer:

[tex]v = u + at \\ v = 3 + (1.5 \times 7) \\ v = 3 +10.5 \\ \boxed{v = 13.5 \: m {s}^{ - 1}} [/tex]

Answer:

In the image below