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garri49 [273]
3 years ago
8

What is the height of a trapezoid with a area of 79.2 and bases 4.2 and 9

Mathematics
2 answers:
julsineya [31]3 years ago
8 0
The answer to this problem is 12. If you want me to write it out I can
ycow [4]3 years ago
8 0
A=area
b₁=base 1
b₂=base 2
h=heigth

A=(1/2)h(b₁+b₂)
79.2=(1/2)h(4.2+9)
79.2=(1/2) h (13.2)
h=(79.2 * 2) / (13.2)=158.4 / 13.2=12

Answer: height=12
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Susan uses the following equation to determine how much a taxi ride is going to cost her, where m is the number of miles travele
aleksandrvk [35]

Answer:

D

Step-by-step explanation:

$7.00 + $2.20*9 = $26.80

3 0
3 years ago
En la escuela Francisco I. Madero de ciudad Delicias, llevaron a cabo el festejo para
REY [17]

Answer:

The number of unsold cakes was 2

Step-by-step explanation:

<u><em>The question in English is</em></u>

In the school Francisco I. Madero of Ciudad Delicias, the celebration was held for  commemorate the arrival of spring, after the parade the stalls were set up  of the kermesse. The first grade group bought 8 cakes and sold 3/4 of the total.

How much of the cake was not sold?

Let

x ----> number of cakes sold

y ----> number of cakes that didn't sell

we know that

The first grade group bought 8 cakes

so

x+y=8 -----> equation A

The first grade group sold 3/4 of the total.

so

x=\frac{3}{4}(x+y) ---> equation B

substitute equation A in equation B

x=\frac{3}{4}(8)=6

Find the value of y

6+y=8

y=2

therefore

The number of unsold cakes was 2

4 0
3 years ago
G(x)=x^3+5x h(x) =x+3 find (g+h)(x)
exis [7]

(g+h)(x) = x^3+6x+3

Step-by-step explanation:

The operations on functions can be performed as they are performed on polynomials

The addition of functions is used in the given question

Given

g(x)=x^3+5x\\h(x)=x+3

We have to find:

(g+h)(x)=g(x)+h(x)\\=x^3+5x+x+3\\=x^3+6x+3

So,

(g+h)(x) = x^3+6x+3

Keywords: Functions, operations on functions

Learn more about functions at:

  • brainly.com/question/4892332
  • brainly.com/question/4924817

#LearnwithBrainly

7 0
3 years ago
A water taxi travels around an island in a path that can be modeled by the equation y =0.5(x - 16). A water skier is skiing alon
Eddi Din [679]

I realize that the equation is different, but do it in the same way, it'll help! It is given that the water​ taxi's path can be modeled by the equation y =0.5(x - 14)^2. ​Therefore, this is one of the equations in this system. Find a linear equation that will model the path of the water​ skier, which begins at the point (6,6) and ends at the point (8,-4). The slope is (-5). Use the slope and one point on the line to find the​ y-intercept of the line.  The​ y-intercept of the line that passes through the points (6,6) and (8,-4) is (0,36). Thus, the equation is y=-5x+36. Now, to determine if it is possible for the water skier to collide with the​ taxi, we have to determine if there is a solution to the system of equations. To determine if there is a solution to the system of​ equations, solve the system using substitution.​ First, write the equation that models the water​ taxi's path in standard form. y=0.5(x - 14)^2-->0.5x^2-14x+98. Use substitution. Substitute for  y in the equation and then solve for  x. As the expression on the left side of the equation cannot easily be​ factored, use the Quadratic Formula to solve for x. Do x=-b(plusorminus)sqrrtb^2-4ac/2a. Identify a, b, and c. a=0.5, b=-9, and c=62. Substitute into the Quadratic Formula. If there is a negative number under the radical, there are NO solutions. Thus, the path of the water skier will never cross the path of the taxi.

In conclusion: It is not possible that the water skier could collide with the taxi as the two paths never cross.

8 0
3 years ago
ASAP! GIVING BRAINLIEST! Please read the question THEN answer correctly! No guessing. Show your work or give an explaination.
Ivan

Answer:

D

Step-by-step explanation:

Just like with the last time you asked this question, the correct answer is D since the graph is slid 3 to the left. Hope this helps+

7 0
3 years ago
Read 2 more answers
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