Solve for x 5 x − 9 = 3 x + 3

Help me with this please

allsm [11]

Answer:

yea

Step-by-step explanation:

4 0

3 years ago

Henrique drew and labeled the net shown. He also labeled the areas of the left and right triangular sides.

Oksana_A [137]

Answer: $SA=117.2\ in^2$

Step-by-step explanation:

You need to remember the following:

1. The area of a rectangle can be calculated with the following formula:

$A_r=lw$

Where "l" is the length and "w" is the width.

2. The area of a triangle can be calculated with the following formula:

$A_t=\frac{bh}{2}$

Where "b" is the base and "h" is the height.

Use those formulas to find the area of each face.

Area of the rectangle

$A_r=(10\ in)(4\ in)=40\ in^2$

Area of two triangles

There are two equal triangles. Each one has a base of 10 inches and a height of 5 inches. Then, their areas are equal:

$A_{t1}=A_{t2}=\frac{(10\ in)(5\ in)}{2}=25\ in^2$

The areas of the other two triangles (which are equal) are:

$A_{t3}=A_{t4}=13.6\ in^2$

Adding the areas of the faces, you get that the surface area of the rectangular pyramid is:

$SA=40\ in^2+25\ in^2+25\ in^2+13.6\ in^2+13.6\ in^2\\\\SA=117.2\ in^2$

3 0

4 years ago

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50 POINTS+BRAINLIEST!!!!

Ilya [14]

Answer: So, we know that the internal angles of a triangle add up to 180 degrees, yes?

60 degrees plus 50 degrees equals 110 degrees, and subtract 110 from 180, and you get 70 degrees for angle y.

Now, if the triangles are congruent (identical) and the shape you are describing is like an hourglass, then because of the vertical angles theorem, angle x should be 70 degrees too!

Brainliest please if I am correct! and hope it helped.

5 0

3 years ago

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Kim is having a pizza party. Two large pizzas serve 9 people. How many large pizzas should she order to serve 36 guests at the p

Angelina_Jolie [31]

It is 8 because two large can serve 9 and there are 4 9’s that go into 36 so you just have to times 2 and 4 to get 8

2=9
+2
4=18
+2
6=27
+2
8=36

8 large pizzas for 36
(Me personally would eat 8 all by myself)

3 0

3 years ago

Mike wants to fence in part of his backyard. He wants the length of the fenced-in area to be at least 20 feet long, l ≥ 20. He h

zhuklara [117]

I added a screenshot of the complete question along with the given choices.

Answers:

w = 10 ft and l = 50 ft ................> second option

w = 20 ft and l = 60 ft ...............> third option

w = 50 ft and l = 40 ft ...............> fifth option

Explanation:

We are given that:

length should be at least 20 ...........> length ≥ 20

equation for perimeter is : 2l + 2w ≤ 200

We will check each option as follows:

Option 1:

w = 50 ft and l = 10 ft

This option is incorrect as the proposed length is less than 20.

Option 2:

w = 10 ft and l = 50 ft

Since the length is greater than 20, the first condition is satisfied.

Now, we check the second condition:

2l + 2w = 2(50) + 2(10) = 100 + 20 = 120 ≤ 200

The second condition is also satisfied.

This option is correct

Option 3:

w = 20 ft and l = 60 ft

Since the length is greater than 20, the first condition is satisfied.

Now, we check the second condition:

2l + 2w = 2(60) + 2(20) = 120 + 40 = 160 ≤ 200

The second condition is also satisfied.

This option is correct

Option 4:

w = 90 ft and l = 30 ft

Since the length is greater than 20, the first condition is satisfied.

Now, we check the second condition:

2l + 2w = 2(30) + 2(90) = 60 + 180 = 240 > 200

The second condition is not satisfied.

This option is incorrect

Option 5:

w = 50 ft and l = 40 ft

Since the length is greater than 20, the first condition is satisfied.

Now, we check the second condition:

2l + 2w = 2(50) + 2(40) = 100 + 80 = 180 ≤ 200

The second condition is also satisfied.

This option is correct

Hope this helps :)

8 0

4 years ago

Read 2 more answers