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3 years ago

Please help me thank you

Mathematics

2 answers:

Vlad1618 [11]3 years ago

6 0

Search up the area formula for the shapes.Than put in the numbers.After solving dont forget the unit

frutty [35]3 years ago

5 0

Answer:

Step-by-step explanation:

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A boat costs $12,250 & decreases in value by 11% per year how much will the boat be worth after 4 years

kirill115 [55]

So it decreases by 11% which means by the next year it's worth 89% of the original price, write 89% like a decimal. then put it to the power of 4 (4 years) and multiply by the original number
.89 ^ 4 * 12250 = 7685.92

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3 years ago

Step 1 -3(3x+5)-6<6

Mnenie [13.5K]

Error is between steps 4 and 5. It should say:

Step 4: -9x < 27
Now divide by -9
Step 5: x > -3
Note that the inequality changes direction.
When you mean multiply or divide an inequality by a negative number, the inequality changes direction.

For example:
4 < 5
Multiply by -1:
-4 > -5

Another example:
-5 < 0
5 > 0

6 0

3 years ago

Calculate the area of this circle. Type the formula you used and your steps.

aliina [53]

$\frac{\pi*d^2}{4}$

d=26

$\frac{\pi *676}{4} =169*\pi$ ≈530.929158457

5 0

3 years ago

ABC is isosceles with AB=AC=8 units and BC=6 units. D and E are midpoints of AB and BC respectively. Calculate the length of DE?

Allushta [10]

The triangle is drawn and is shown in the image attached with.

We get two similar triangles. Triangle ABC and Triangle ADE. Since the triangles are similar the ratio of their corresponding sides will be the same.

D and E are the midpoints of AB and BC, therefore, AD and AE are both 4 units in length. Using the property of similar triangles, we can say:

AD : DE= AB : BC
AD = 4 units
AB = 8 units
BC = 6 units
DE = unknown = x units

So,

$4 :x = 8 : 6 \\ \\ 
 \frac{4}{x} = \frac{8}{6} \\ \\ 
x=4* \frac{6}{8}=3 
$

Therefore, the length of DE will be 3 units

6 0

2 years ago

Find the sum of the following geometric sequences. d) 3 terms a= 16 r=3/4

kodGreya [7K]

Answer:

S₃ = 37

Step-by-step explanation:

given a₁ = 16 and r = $\frac{3}{4}$ , then

a₂ = a₁ × $\frac{3}{4}$ = 16 × $\frac{3}{4}$ = 12

a₃ = a₂ × $\frac{3}{4}$ = 12 × $\frac{3}{4}$ = 9

then

S₃ = a₁ + a₂ + a₃ = 16 + 12 + 9 = 37

7 0

1 year ago