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3 years ago

Calculate the area of this triangle. 13 cm 5 cm 12 cm-

Mathematics

2 answers:

stiv31 [10]3 years ago

6 0

Answer:

which one is the height?

inessss [21]3 years ago

3 0

Answer:

Step-by-step explanation:

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17. Admission prices to Cinema I to see a movie are $9.50 for an adult and $6.50 for a child. The admission charge at Cinema II

maksim [4K]

Answer:

a. 9.5x + 6.5(x+c) < 8 when c>0

b. Must be one child more than the no. of adults.

Step-by-step explanation:

For Cinema 1:

for adult = $9.50

for child = $6.50

For Cinema 2:

Per person regardless of age = $8.00

First of all, we will find out the condition when per person rates in both cinema are equal.

Assume x = no. of adults

y = no. of children

Rate per person in Cinema I = Rate per person in Cinema II

(9.5x + 6.5y)/(x+y) = 8

9.5x + 6.5y = 8(x+y)

9.5x + 6.5y = 8x + 8y

9.5x-8x = 8y-6.5y

=> x = y

So rates are equal when no. of adults equals no. of children

For Cinema I to have better rates, no. of children should be atleast 1 more than the no. of adult. In this way the rate per person of Cinema I will be less than 8

Hence we form an inequality when y = x+c and c > 0

9.5x + 6.5(x+c) < 8 when c>0

Hence there must be 1 more children than the no. of adults attending Cinema I for it to be a better deal.

4 0

3 years ago

Read 2 more answers

5x^2 -15x-140 what method should be use?

elena55 [62]

5x^2 -15x-140

5(x² -(3x) -28)

5(x² +(4x-7x)-28)

5(x(x+4) -7(x+4)

5(x-7)*(x-4)

8 0

3 years ago

Length of the rectangle 11 cm, width 3x, find the perimeter of the rectangle

Vikentia [17]

Length of the rectangle 11 cm, width 3X, find the perimeter of the rectangle.

The perimeter of a rectangle is calculated by adding its four sides that are equal two to two.

Perimeter = 2*Length + 2*width = 2*11cm +2*3Xcm = 22cm + 6*Xcm

Answer : perimeter = 22cm + 6*Xcm

Hope this helps!

$\textit{\textbf{Spymore}}$

6 0

3 years ago

Events A and B are disjointed.

Llana [10]

Answer:

7/11

Step-by-step explanation:

Two events are disjoint events if they cannot occur at the same time. It is given that A and B are disjointed events, so A and B cannot occur at the same time i.e. the intersection of two disjoint events will be 0.

For two disjoint events A and B:

P(A or B) = P(A) + P(B)

P(A) is given to be 4/11 and P(B) is given to be 3/11. Using these values in the equation, we get:

P(A or B) = $\frac{4}{11}+\frac{3}{11} = \frac{3+4}{11}=\frac{7}{11}$