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Anna71 [15]
2 years ago
13

Help pls !!!!!!!brainliest goes to first right answer

Mathematics
1 answer:
fenix001 [56]2 years ago
6 0

Hi there!

\large\boxed{A = 1200in^{2}}

To solve, we can divide the figure into a rectangle and triangle:

The rectangle has dimensions 20in and 30in. The formula A = l × w will be used to find the area.

The triangle has dimensions 40 (10 + 20 + 10) in and 30 in. The formula A = 1/2(b· h) can be used to find the area.

Find the area of each shape:

A = 20 × 30 = 600in²

A = 1/2(40 × 30) = 600in²

Find the sum of both to find the area of the total figure:

600 + 600 = 1200in²

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4x2 + 8x - 7 - (3x2 - X+9)​
Andreas93 [3]

Answer:

<h2>{x}^{2}  + 9x - 16</h2>

Step-by-step explanation:

4 {x}^{2}  + 8x - 7 - (3 {x}^{2}  - x + 9)

When there is a (-) in front of an expression in parentheses, change the sign of each term in the expression:

4 {x}^{2}  + 8x - 7 - 3 {x}^{2}  + x - 9

Collect like terms

4 {x}^{2}  - 3 {x}^{2}  + 8x + x - 7 - 9

{x}^{2}  + 9x - 7 - 9

Calculate

{x}^{2}  + 9x - 16

Hope this helps...

Good luck on your assignment...

5 0
3 years ago
Read 2 more answers
Please help with these math questions part 2
NikAS [45]
5).
and
6).
The volume of a sphere is

               (4/3) (pi) (radius)³ .

In #5, the 'pi' is already there next to the answer window.
You just have to come up with the (4/3)(radius³).

Remember that the radius = 1/2 of the diameter.

7).  The volume of a cylinder is

                         (pi) (radius²) (height) .

Divide the juice in the container by the volume of one can,
to get the number of cans he can fill.

8).  The volume of a cone is

                     (1/3) (pi) (radius of the round bottom)² (height) .

He starts with a small cone, he then adds clay to it to make it higher.
The question is:  How much clay does he ADD to the short one,
to make the bigger one ?

Use the formula to find the volume of the short one.
Use the formula again to find the volume of the bigger one.
Then SUBTRACT the smaller volume from the bigger volume.
THAT's how much clay he has to ADD.

Notice that the new built-up cone has the same radius
but more height than the first cone.
_______________________________________

Don't worry if you don't understand this.

The answer will be this number:

 (1/3) (pi) (radius²) (height of the big one minus height of the small one).
6 0
3 years ago
If P(A)=2/3, P(B)=4/5, and P(A U B) =11/15, what is P(A ∩ B)?
Juliette [100K]
The answer is A on apex 
3 0
3 years ago
Read 2 more answers
Brainly to whomever somehow solves for x. I WILL REPORT SCAMS AND UNHELPFUL "WHAT?" ANSWERS.
cestrela7 [59]

Answer:

x=\frac{33}{7}

Step-by-step explanation:

Since ED is parallel to CA, the two triangles in the figure share all 3 angles and therefore must be similar. By definition, the corresponding sides of similar polygons are in a constant proportion.

Therefore, we have:

\frac{11}{11+x}=\frac{14}{20},\\14(11+x)=20\cdot 11,\\11+x=\frac{20\cdot 11}{14},\\x=\frac{110}{7}-11=\boxed{\frac{33}{7}}

3 0
3 years ago
Which equation is a linear function? (a)y=2×-1 (b) y=x/2-5 (c) y=x power of 2+7<br> (D) 2/x+3
ANTONII [103]
Assuming you didn't forget parentheses, it's C. Hope this helped.
4 0
3 years ago
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