Please i need help catching up, what is this? im giving out brainliest

Arturiano [62]

Answer: 72 cm²

Step-by-step explanation: 1/2(base)(height) is the formula to find the area of a triangle. To find the area of the bigger triangle we substitute 10 cm for the base and 6 cm for the height.

1/2(10)(6)

1/2(60)

30 cm²

since we have two of the same triangles, we double that

we also have a smaller triangle. 14-10=4 which is the base of the smaller triangle.

1/2(4)(6)

1/2(24)

12 cm²

now, we add everything

60 cm² + 12 cm² = 72 cm²

3 0

3 years ago

The seventh grade class is putting on a variety show to raise money. It cost $700 to rent the

Nataly_w [17]

Well, you would need to compensate for the cost of the banquet hall adding an addition $700 to the goal of $1000.

If you need to raise at least $1700 you can write this inequality.

Let x represent the number of tickets sold.

15x≥1700

x≥ 114 (rounded to the nearest whole number because you can't sell half a ticket)

So, at least 114 tickets need to be sold.

6 0

3 years ago

a man income is rs12000 per month,if the rate of income tax is rs 2.50per rs 100,how much tax should be paid?

Setler [38]

Answer:

2.50/100*12000

2.50*12000/100

=300

5 0

4 years ago

At a certain breakfast restaurant, the probability of a customer ordering coffee is 0.8. When the restaurant seats two new custo

exis [7]

The probability of both of two new customers not ordering coffee is:
$P(X=0)=0.2\times 0.2=0.04$

3 0

4 years ago

Read 2 more answers

A local weather enthusiast wants to see if the last five summers have been warmer than normal for eloy, arizona. from the nation

motikmotik

For the local weather of Eloy, Arizona, the average for the last five years fits with the 30-year average.

<h3>What do you mean by standard deviation?</h3>

In statistics, Standard deviation is a measure of the variation of a set of values.

σ = standard deviation of a population

N = number of observations of population

X = mean

μ = population mean

The 30-year average for July was 90°. The standard deviation for this average is 2.1°. Thus, the temperature lies in the range around of 90° in July.

Therefore, the range of the temperature is,

t = 90 - 2.1 = 87.9

t = 90 + 2.1 = 92.1

The last five summers recorded have an average of 93. 5° and the value of a is 5%. Thus, the reduction is,

t = 92 - (92 x 2.5/100)

t = 89.70

This value of temperature lies in the range of 87.9-92.1 degrees Celsius. Hence, the two averages are probably the same.

Hence, for the local weather of Eloy, Arizona, the average for the last five years fits with the 30-year average. Option D is correct.

Learn more about the standard deviation here;

brainly.com/question/19243813

8 0

2 years ago