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4 years ago

Umm help plz????..........

Mathematics

1 answer:

lord [1]4 years ago

7 0

Answer: Your answer would be A)

Step-by-step explanation: This is a simple problem but there are certainly ways in which it can be confusing specifically in the fact that this could potentially be either a reflection OR a translation if the angles were not marked as such. If it were a reflection N and N' would be located right across from each other over the Y axis but this is not the case. So the only thing we can assume is that it is translated instead. The triangles are also exactly the same size and proportion meaning they are congruent and not similar.

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Which statements are true about a rectangular pyramid with a height of 9 centimeters and a base with the dimensions of 4 centime

Evgesh-ka [11]

Answer:

I did not get this one right, but I will tell you that I know a lot of people, including me who put:

B and D.

Those two together are NOT right. and the other question I got wrong was number 5. That answer is not D. So don't put that. Everything else, I got correct.

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

During two years, the population of birds of an island became 7 times more than before. If the first year increase in the popula

nordsb [41]

Answer:

The percent increase of the second year is 400%.

Step-by-step explanation:

Consider the provided information.

Let the population of birds was x.

After 2 years the population becomes 7 times more than before.

Therefore, after 2 years population is 7x.

In first year increase in the population was 40%.

Population after 1st year = x + 40% of x

Population after 1st year = x + 0.40x

Population after 1st year = 1.4x

The population increase from 1st year to 2nd year is: 7x-1.4x=5.6x

Thus the percentage increase is:

$\% increase=\frac{5.6x}{1.4x}\times100=400\%$

Hence, in second year the population of birds increase by 400%.

6 0

3 years ago

Which is bigger 3/12 or 1/4?

Aliun [14]

Answer:

they are equal

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

2. A student on the track team runs 45 minutes each day as a part of her training. She

fomenos

Answer:

Step-by-step explanation:

The basic equation to solve this would be D = RT, which is

D is Distance

R is Rate (speed)

T is time

To find total distance D, we can find individual distances for two legs of the whole.

First Leg:

R = 8

T = a

D = 8a

Second Leg:

R = 7.5

T = b

D = 7.5b

Total distance D is:

D = 8a + 7.5b

Moreover, we know student runs 45 minutes in total hence a + b = 45 or we can say a = 45 - b, so we can replace this in the equation found:

D = 8a + 7.5b

D = 8(45 - b) + 7.5b

Answer choice D is right.

8 0

4 years ago

What is the value of tan A?

Ronch [10]

For the given triangle, the tan of angle A equals $\frac{3}{4} = 0.75.$

Step-by-step explanation:

Step 1:

In the given triangle for angle A, the opposite side has a length of 6 cm, the adjacent side has a length of 8 cm while the hypotenuse of the triangle measures 10 cm. To calculate the tan of angle A we divide the opposite side's length by the adjacent side's length.

$tan A = \frac{oppositeside}{adjacent side}.$

Step 2:

The opposite side's length = 6 cm.

The adjacent side's length = 8 cm.

$tan A = \frac{oppositeside}{adjacent side} = \frac{6}{8} = \frac{3}{4} = 0.75.$

6 0

3 years ago