will give brainliest

Answer:

134

Step-by-step explanation:

There's 2 blue arrows where 39 is, and the same arrows where 4x+7 are. This means that they are the same length. So, 4x+7 = 39. Perimeter means you add, so 28+28+39+39 = 134.

Answer:

We want to simplify:

(3 + 1/4)*(3/5)

The first step is to write the first term as a single rational number.

We know that:

3*1 = 3

and 4/4 = 1

then:

3*1 = 3*(4/4) = (3*4)/4 = 12/4

We do this because we want to have the same denominator in both numbers, so we can directly add them.

Then we get:

(3 + 1/4)*(3/5) = (12/4 + 1/4)*(3/5) = (13/4)*(3/5)

And remember that in the multiplication of rational numbers the numerator are multiplied together and the same for the denominators, then we get:

(13/4)*(3/5) =  (13*3)/(4*5)

If we solve the multiplications we get:

(13*3)/(4*5) = (39/20)

Now, we can notice that in the numerator we have two prime numbers, 13 and 3.

And in the denominators, we have a 4 (which is equal to 2*2) and a 5.

So the prime numbers in the numerator and the denominator are all different, this means that we can not simplify it furthermore.

Then we have:

(3 + 1/4)*(3/5) = (39/20)

Answer:

Your answer

18.75% discounted

Mark it as Brainlist. Follow me for more answer.

Step-by-step explanation:

its the first one

Step-by-step explanation:

because per pertains to to x

Answer:

6:15

Step-by-step explanation:

Answer:6:15

Step-by-step explanation:

if you add together the dimes and add together the nickels, you get 6 dimes and 15 nickels. the colon in between the number is equal to “to” so it means 6 dimes to 15 nickels

Answer:

4,096

Step-by-step explanation:

It goes like this 4 * -4=-16, 16*4=64, -64*4=256, etc.

You use the sum of the last number but flip the sin to make it opposite like if your some was + make it a negative to get your next product. Hope that made sense!!!!

Answer:

80

Step-by-step explanation:

im not sure i ever done this but 1x2=2 and 2x 40= 80

i dont know sorry im trying my bets

Answer:

3) 0.75

5)96 pens

Step-by-step explanation:

3) 5 percent *15 =

( 5:100)*15 =

( 5*15):100 =

75:100 = 0.75

5) 48/4= 12

12*8=96

Answer:r

enor

Step-bay-step explanation:

Answer:

See the conversion from decimal to fraction:

13.

14.

15.

Answer:

x + 12 ft

Step-by-step explanation:

Area = base times height.  Here we know the area (x^2 + 9x - 36) and the width (x - 3).  Since area = length times width, divide the given area by x - 3.

x^2 + 9x - 36 factors into (x - 3)(x + 12).

Dividing this result by x - 3 yields the length:  x + 12 ft

Answer: C≈25.13in

Step-by-step explanation:

Step-by-step explanation:

Your answer is right here...

Answer: 32

Step-by-step explanation:add 14 to 18

Answer:

32

Step-by-step explanation:

32 is the answer because 18 plus 14 equals 32. And so the number 32 decreased by 14 is 18.

Correct Answer:

[tex]x^2 + 7x + 12[/tex]

Step-by-step explanation:

The error that was made, is that they accidentally added 3 and 4 together, during the distribution, when they should have multiplied it, leaving them with 7 instead of 12.

Answer:

B.move to the left 4 units then up 7 units.

Answer:

4 ;)

Step-by-step explanation:

78/75=1.04

Answer:

It would be A

explanation:

the reson why it is A because it is closest to 3%

your welcome

Answer:x=9

Step-by-step explanation:

-4=5-x

Add x on both sides

x-4=5

Add 4 on both sides

x=5+4

Solve

x=9

Answer:

x = 9

Step-by-step explanation:

-4 = 5 - x

5 - x = -4

-x = -4 - 5

-x = -9

x = -9/-1

x = 9

Answer:

[tex]X = 12.6[/tex]

Step-by-step explanation:

Given

[tex]X - 3.5 = 9.1[/tex]

Required

Solve for X

Add 3.5 to both sides

[tex]X - 3.5 +3.5 = 9.1 + 3.5[/tex]

[tex]X = 9.1 + 3.5[/tex]

[tex]X = 12.6[/tex]

Answer:

12/13

Step-by-step explanation:

Sin, remember it as SOH. SOH is Sin=Opposite/hypotenuse.

Answer:

3.25

Step-by-step explanation:

Answer: a

Step-by-step explanation:

Answer:

line d

Step-by-step explanation:

Answer: 18ft

Step-by-step explanation: I took the quiz and got 100%

The height of the tree is 8.3 ft.

To solve this problem, we have to find the angle of elevation from the student.

To do this, we have to assume or bring out a right angle triangle and solve for the.

Given that we have the distance of A to F and the point  to F

Using trigonometric ratio,

We can find the tangent of this angle

[tex]tan\theta = \frac{opposite}{adjacent} \\tan\theta = \frac{6}{5}\\ tan \theta = 1.2\\\theta = tan^-^1(1.2)\\\theta = 50.2^0[/tex]

The angle of elevation can be calculated using sum of angles in a triangle is equal to 180 degrees

[tex]180 = 90 + 50.2 + x\\x = 180- 140.2\\x = 39.8^0[/tex]

Assuming a right angle triangle from the point the student is standing, the distance from him to the tree would be

[tex]15 - 5 = 10ft[/tex]

Let's use the tangent of the angle to find the height of the tree.

[tex]tan\theta = \frac{opposite}{adjacent} \\tan 39.8 = \frac{x}{10}\\x = 10 tan39.8\\x = 8.3ft[/tex]

From the calculations above, the height of the tree is 8.3 ft.

Learn more on trigonometric ratio here;

https://brainly.com/question/10417664