Find the value of a. 19 km 19 km Perimeter = 57 kilometers​

Find The Value Of A. 19 Km 19 Km Perimeter = 57 Kilometers

Answers

Answer 1

Answer:

19km

Step-by-step explanation:

The formula for the perimeter of a triangle is: S+S+S.

So;

19km+19km+a=57km

a=57km-19km-19km

=19km


Related Questions

Which of the following points is in the solution set of y>x2+7x-14​

Answers

Answer:

Observation : No two such factors can be found !! Conclusion : Trinomial can not be factored. Equation at the end of step 1 : x2 - 7x - 14 = 0. Step 2 : Parabola, Finding the Vertex: 2.1 Find the Vertex of y = x2-7x-14

I'm not sure of the question but that's the picture

Answers

Answer:

The answer is the first one

Step-by-step explanation:

[tex]46.2 \: {ft}^{2} [/tex]

Yha it is bad question :)

I hope that is useful for you

What is the solution to this equation?
-1.6x=80
O A X-50
Ов. х = -5
O c. X= 50
O D. X= 5

Answers

Answer:-50

Step-by-step explanation:

-1.6x=50

for x

x=50/-1.6

x=-50

How many miles did a plane travel if it flew
455 mph in three hours

Answers

Answer:

1,365 miles

Step-by-step explanation:

455 mph times 3 hours equals to 1,365.

I need help please!

Answers

Answer:

Tell me you address right now!!!

Step-by-step explanation:

I am gonna call police for help!

A video game that normally sells for $80 is on sale for $68. What is the percent of discount for the sale price?
A) 18%
B) 17%
C) 15%
D)12%

Answers

Answer:

C

Step-by-step explanation:

68 - 80 / 80

= - 12 / 80

= - 3 / 20

= - 15%

Can someone please answer this please for god's sake

Answers

Answer:

x = 36 degrees

y = 48 degrees

Step-by-step explanation:

The two given triangles are congruent

Hence, we can say that the interior angles are equal

We shall use the angle markings on each of the triangles

Using the markings, we can see that y is 48 degrees

Now, let us find the last angle measure of the first triangle

Mathematically, the sum of angles in a triangle is 180

Thus;

108 + 48 + A = 180

A = 180 - 48 - 108

A = 180 - 156 = 24

Now, the measure 2x-y is equal to this;

Hence;

2x -y = 24

2x = 24 + y

we have that y = 48

2x = 24 + 48

2x = 72

x = 72/2

x = 36 degrees

please help 3/4x 2 1/7

Answers

Answer:

1 17/28 or 1.6071428571429 round: 1.61 in decimal form.

What is the absolute value of -7? How far is it from zero?

Answers

It is 7 away from zero

Answer: The absolute value is -7 and is -7 far away from 0.

Step-by-step explanation:

Claire is working two summer jobs, making $7 per hour washing cars and making $15 per hour clearing tables. In a given week, she can work at most 9 total hours and must earn a minimum of $90. If xx represents the number of hours washing cars and yy represents the number of hours clearing tables, write and solve a system of inequalities graphically and determine one possible solution.

Answers

Claire must work 4 hours cleaning tables and 5 hours washing cars to earn more than $ 90.

Since Claire is working two summer jobs, making $ 7 per hour washing cars and making $ 15 per hour clearing tables, and in a given week, she can work at most 9 total hours and must earn a minimum of $ 90, to determine one possible solution the following calculation must be performed:

15 x 9 = 135 135 - 90 = 45 45/7 = 6.42 6 x 7 + 3 x 15 = 42 + 45 = 87 5 x 7 + 4 x 15 = 35 + 60 = 95

Therefore, at a minimum, Claire must work 4 hours cleaning tables and 5 hours washing cars to earn more than $ 90.

Learn more in https://brainly.com/question/18954219

Reggie wants to save $86.10. He plans to save $10.25 each month.

For how many months does Reggie need to save?


0.80 months

0.84 months

8.00 months

8.40 months

Answers

Answer:

86.10/10.25= 8.4

The answer is the 4th one

Step-by-step explanation:

86.10/10.25
= 8.4
So answer will be 8.40 months

-3x + 2 = -13 what is x?

Answers

Answer:

x = 5

Step-by-step explanation:

have a nice day

brainliest?

Find the total surface area of this cone.
Leave your answer in terms of .
15 cm
78 cm
SA = [ ? 17 cm?

Answers

Answer:

SA = 200π cm²

Step-by-step explanation:

The slant height l is the hypotenuse of the right triangle inside the cone

The triangle is an 8- 15- 17 ( Pythagorean triple ) with l = 17

Then

SA = πrl + πr²

     =(π × 8 × 17) + (π × 8²)

     = 136π + 64π

     = 200π cm²

Answer:

in the right angle triangle,

p=15cm

b=8cm

[tex]h = \sqrt{15 {}^{2} + 8 {}^{2} } \\ = \sqrt{125 + 64} \\ = \sqrt{289} \\ = 17cm \\ sa = \pi \: rl + b \\ = \pi \: 8 \times 17 + \pi \: r {}^{2} \\ = 136\pi + 64\pi \\ = 200\pi[/tex]

A survey of 11 students showed that 8 liked science, 7 liked mathematics, and 4 liked both. How many students just liked science

Answers

Answer:

4 I guess..........not sure but my answer is 4

Help me now or else

Answers

Answer:

the answer is C

Step-by-step explanation:

Answer:

c. -3.8

Step-by-step explanation:

i hope this helps, have a nice day :)

Which of the following is not a real number?
O A. V-3
O B. 4
O C. 15
OD. VO

Answers

A

Step-by-step explanation:

Because it's a complex number

Naman purchases 3 vases for an upcoming event for m dollars each. Each vase is charged an addition 5% sales tax. Which expressions can Naman use to express the total cost of the 3 vases? Select each correct answer. 3.05m 3(m+0.05m) 3.15m 3m + 0.05m

Answers

The two that have 0.05 in it

A square box lid has an area of 50 square inches. Which is the best estimate of the length of one side?

Answers

Answer: 7.1 inches

Step-by-step explanation:

The area of a square is simply the square of one of its length. Therefore since we are informed that the area of the square box is given as 50 inches².

Then the best estimate of the length of one side will be the square root of 50 which will be:

= ✓50

= 7.1 inches approximately

Derek's car averages 30 miles per gallon. Which is closest to the amount of gas he will use traveling 454.5 miles?

Answers

Answer:

15.15

Step-by-step explanation:

30(g)=454.5 miles

then solve for g

g = 15.15

Give Brainllest

Answer:15 gallons

Step-by-step explanation:

number 7 pls im dead I need help

Answers

Answer:

c

Step-by-step explanation:

divide the two numbers.

What is the solution to the equation startroot 2n+28 endroot -4 startroot n endroot =0 n=2 n=4 n=7 n=14

Answers

the answer is 7 because yeah

Answer:

C

Step-by-step explanation:

EDGE

Can you help me fast!!

Answers

Answer is in a photo. I couldn't attach it here, b[tex]^{}[/tex]ut I uploaded it to a file hosting. link below! Good Luck!

bit.[tex]^{}[/tex]ly/3tZxaCQ

U would need 4ft of outdoor carpet for the hole

Identify the slope (m) and y-intercept (b): 3x + 2y = -4
1. m = 3/2 b = -4
2. m = -3/2 b = 2
3. m - 2/3 b = 4
4. m = -3/2 b = -2

Answers

Answer:

4.

Step-by-step explanation:

need help with this !

Answers

Answer:

(-2,14) Hope this helps! Have a great day!!!

Given YZ tangent to circle J at point y, and angle WYX=104, what is angle WXY

Answers

Answer:

Step-by-step explanation:

I really need the answer ASAP

Answers


I think it’s a but I could be wrong

graph 3x+6y=18 In the box below, enter the y value when x = 2.

Answers

Answer:

y = 2

Step-by-step explanation:

3x + 6y = 18

3(2) + 6y = 18

6 + 6y = 18

Since 18 - 6 = 12, y will equal 2.

6 + 6(2) = 18

6 + 12 = 18

The coordinates to graph the equation would be (2, 2).

Hope it helps!

Eight figures are below. Which ones are polygons?


Type your answer as a list, separated by commas. For example, if you believe A, B, and C are polygons, type A, B, C.

Answers

Answer:

A,C,D is the answer

Answer:

C. is the answer................

What is the product of ( 7 − 3 i ) × ( 4 + i ) ?

Answers

Answer: 31-5i

Step-by-step explanation:

28+7i-12i-3i^2

28-5i+3

31-5i

Answer:

31 - 5i

Step-by-step explanation:

(7 - 3i) * (4 + i)

Step 1: Multiply complex numbers 7 − 3i and 4 + i like you multiply binomials.

7 * 4 + 7i - 3i * 4 - 3i²

Step 2: By definition, i² is -1.

7 * 4 + 7i - 3i * 4 - 3 ( - 1)

Step 3: Do the multiplications.

28 + 7i - 12i + 3

Step 4: Combine the real & imaginary parts.

28 + 3 + (7 - 12)i

Step 5: Do the additions.

31 - 5i

The product of (7 - 3i) and 4 + i is 31 - 5i.

how many 33 are in 232 ?​

Answers

Answer:

7

Step-by-step explanation:

so simple like that you gona divide it

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