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3 years ago

Anyone know this one I’m kinda bad at math lol

Mathematics

2 answers:

swat323 years ago

8 0

Answer:

1/ 9^5

Step-by-step explanation:

When dividing exponents with the same base, subtract the exponents

9^2 / 9^7

9 ^ (2-7)

9^ -5

We know that a^ -b = 1/ a^b

1/ 9^5

jenyasd209 [6]3 years ago

8 0

You can rewrite it as: (using the law of dividing exponents)

9^(2-7) = 9^(-5) = 1/(9^5)

The fourth one

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A triangle has an area of 900m2 . If a parallelogram has the same height and base as the triangle, what is the area of the paral

timama [110]

Answer:

1800 $m^{2}$ is the area of parallelogram.

Step-by-step explanation:

Given that:

Area of a triangle = 900 $m^{2}$

To find:

Area of a parallelogram which has same height and base as that of the given triangle.

Solution:

First of all, let us have a look at the formula for Area of a parallelogram:

$Area_{Par} = Base \times Height$ ...... (1)

So as to find the area of a parallelogram, we need to have the product of Base and Height of Parallelogram.

Now, let us have a look at the formula for area of a triangle:

$Area_{Tri} = \dfrac{1}{2} \times Base \times Height$

Given that height and base of triangle and parallelogram are equal to each other.

So,the product of base and height will also be equal to each other.

$900 = \dfrac{1}{2} \times Base \times Height\\\Rightarrow Base \times Height = 2 \times 900\\\Rightarrow Base \times Height = 1800\ m^2$

By equation (1):

<em>Area of parallelogram = 1800 </em> $m^{2}$ <em> </em>

4 0

3 years ago

What is the result of subtracting the second equation from the first? 8x-4y=-4 -3x+4y=5

aleksley [76]

Answer:

-9+11x-8y

Step-by-step explanation:

7 0

3 years ago

Hey anybody plz help me ;C

jekas [21]

Answer:

her equation should be a² + 3² = 4²

Step-by-step explanation:

a² + 3² = 4²

a² + 9 = 16

a² = 7

a = $\sqrt{7}$

a ≈ 2.6 inches

3 0

3 years ago

Ellen’s rectangular garden is 6 feet wide and 16 feet long. One bag of mulch will cover 9 square feet. How many bags of mulch sh

ivann1987 [24]

16•6=96
96/9=10.6
10.6 rounds to 11
You’ll need 11 bags to fill the area

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3 years ago

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Is the DIAMETER of a circle proportional to its circumference???

Elodia [21]

Answer:

Is the DIAMETER of a circle proportional to its circumference??

1. One of the unique qualities of a circle is that its diameter and circumference have a proportional relationship.

2. This means that no matter what size the circle is, the proportional relationship, or ratio, between its circumference and diameter is always the same.

Is the RADIUS of a circle proportional to its area??

1. Yes, the circumference of a circle is proportional to its radius.

2. Double the radius and you double the circumference.

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3 years ago