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2 years ago

Help please! Will give brainliest!!

Mathematics

2 answers:

ASHA 777 [7]2 years ago

6 0

Refer to the attachment

MakcuM [25]2 years ago

4 0

Answer:

$714

Step-by-step explanation:

Given:

A = 9000
i = 8.2% or 0.082
n = 9
d = ?

Use the given formula and find d:

$A=d(\frac{(1+0.082)^9-1)}{0.082})$
$9000=d*12.6$
$d=9000/12.6$
$d=714$

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The length of the arc of this semi-circle is 70m. What is the length of the radius?

anzhelika [568]

Answer:

r = 22.3m circa

Step-by-step explanation:

We know that the perimeter of a circle can be calculated as follows:

p = 2 $\pi$ r

So half of perimeter will be:

p/2 = $\pi$ r

We know that p/s = 70m, therefore:

r = 70m / $\pi \\$ = 22.3 m circa.

7 0

2 years ago

Mark opens a bank account with $20. He plans to put in $5 each week.

lys-0071 [83]

Answer:

16 weeks

Step-by-step explanation:

So he has 20.

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3 years ago

The smallest hummingbird is the Bee hummingbird. It has a mass of about 1

Mrac [35]

This question is incomplete and has not be written correctly.

Complete Question:

The smallest hummingbird is the Bee hummingbird. It has a mass of about 1 1/2 grams. The mass of a larger type of hummingbird is about 5 times the mass of the Bee hummingbird.

What is the mass of the larger humming bird?

Answer:

7 1/2 grams

Step-by-step explanation:

The mass of Bee humming bird is given in the question as = 1 1/2 grams

Mass of the larger humming bird = 5 times the mass of Bee humming bird

The mass of the larger humming bird is calculated as:

5 × 1 1/2 grams = 5 × 3/2 grams

= 15/2 grams = 7 1/2 grams

Therefore, the mass of the larger humming bird is 7 1/2 grams

3 0

2 years ago

"Calculate the value of b in the triangle below." HELP PLZ WILL GIVE BRAINLIEST

Viktor [21]

Answer:

$b { }^{2} = (61m) {}^{2} - (11m) {}^{2}$

$b {}^{2} = 3721 - 121$

$b {}^{2} = 3600$

$\sqrt{b {}^{2} } = \sqrt{3600}$

$b = 60$

8 0

3 years ago

Find the length of dm in the given fig.

lesya692 [45]

Answer:

$DM=12$

Step-by-step explanation:

(Let the point where the altitude from $D$ intersects $AB$ be called as point $E$ .) First, let's find the area of parallelogram $ABCD$ . The area of a parallelogram is simply $b*h=bh$ , where $b$ is the parallelogram's base and $h$ is the parallelogram's height. If we let $AB$ and $DE$ be the base and height respectively, since we are already given their lengths, we know that the area of parallelogram $ABCD$ will be $AB*DE=15*8=120$ .

Now, how does this information matter, you might ask? Well, we can take either $AB$ or $CB$ to be the base and either $DE$ or $DM$ to be the height. In this case, let's take the latter two options, as we are looking to find the length of $DM$ .

Therefore, we know that the area of parallelogram $ABCD$ can also be found by calculating $CB*DM$ . Since we know the values of the area and $CB$ , we can write the following equation to solve for $DM$ :