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3 years ago

Provide an explanation and the calculations please.

Mathematics

2 answers:

IgorC [24]3 years ago

6 0

Answer:

PLZ GIVE ME BRANLIEST =)))

1. A scientific notation is where you multiply any number by a power of 10 (negative or positive or neutral).

2. This is incorrect, because 3.825*10^6 is actually 3,825,000. The correct answer is 3.825*10^5.

3a) The power is supposed to be negative, since the number is decreasing, not increasing. It is 4.25*10^-5. 3b) The processes are alike in the way that they all have a number being multiplied by a power of 10. They are all different in the way that some numbers can be decimals, and some powers can be negative powers.

scZoUnD [109]3 years ago

4 0

Answer:

1. A scientific notation is where you multiply any number by a power of 10 (negative or positive or neutral).

2. This is incorrect, because 3.825*10^6 is actually 3,825,000. The correct answer is 3.825*10^5.

Step-by-step explanation:

give the outher person the brianlist

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Seth is using the figure shown below to prove the Pythagorean Theorem using triangle similarity:

Damm [24]

Part A: A pair of similar triangles is triangle DEF and triangle GFD.

Part B: Traingle DEF ~ triangle GFD by the AA Similarity Theorem

Part C: By applying the Leg Rule, the length of segment ED = 4 units.

Recall:

Based on the Angle-Angle Similarity Theorem (AA) two triangles that have two pairs of congruent triangles can be proven to be similar to each other.
In a right triangle where the altitude intersects the hypotenuse, the Leg Rule applies, which is: Hypotenuse/Leg = Leg/Part

The Figure of the given triangle DEF is shown in the attachment below.

Part A: A Pair of Similar Triangles

A pair of similar triangles are traingle DEF and triangle GDF

Part B: Reason for Similarity

Triangle DEF and GDF have two pairs of congruent angles, ∠EDF ≅∠DGF and ∠EFD ≅∠GFD.

Therefore, based on the AA Similarity Theorem, Traingle DEF ~ Triangle GDF.

Part C: Length of Segment ED

Given the following,

EF = 8 (Hypotenuse)
EG = 2 (Part)
ED = ? (Leg)

Thus:

8/ED = ED/2 (Leg Rule)

Cross multiply

ED² = (8)(2)

ED² = 16

Find the square root of both sides

ED = 4

Learn more about AA Similarity Theorem on:

brainly.com/question/24147586

5 0

3 years ago

Triangle ABC is an isosceles triangle in which side

Shkiper50 [21]

Answer:

Option B.

Step-by-step explanation:

Consider the below figure attached with this question.

It is given that triangle ABC is an isosceles triangle.

From the below figure it is clear that the vertices of triangle are A(-2,-4), B(2,-1) and C(3,-4).

Distance formula:

$d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

Using this formula, we get

$AB=\sqrt{(2-(-2))^2+(-1-(-4))^2}=\sqrt{16+9}=5$

$BC=\sqrt{(3-2)^2+(-4-(-1))^2}=\sqrt{1+9}=\sqrt{10}$

$AC=\sqrt{(3-(-2))^2+(-4-(-4))^2}=\sqrt{25}=5$

Now,

Perimeter of triangle ABC = AB + BC + AC

$=5+\sqrt{10}+5$

$=10+\sqrt{10}$

So, perimeter of triangle ABC is $10+\sqrt{10}$ units.

Therefore, the correct option is B.

4 0

3 years ago

Read 2 more answers

A company knows that unit cost C and unit revenue R from the production and sale of x units are related by Upper C equals StartF

levacccp [35]

Answer:

$990 per unit.

Step-by-step explanation:

The Unit Cost (C) and Unit Revenue R from the production and sale of x units are related by the function:

$C=\dfrac{R^2}{220000} +3221$

We are required to find the rate of change of revenue per unit when the cost per unit is changing by $9 and the revenue is $1,000.

Rate of Change of C,

$\dfrac{dC}{dt}=\dfrac{R}{110000} \dfrac{dR}{dt} \\\dfrac{dC}{dt}=\$9, R=\$1000\\9=\dfrac{1000}{110000} \dfrac{dR}{dt}\\\dfrac{dR}{dt}=9 \div \dfrac{1000}{110000}\\=9 X \dfrac{110000}{1000}\\\dfrac{dR}{dt}=\$990 $ per unit$$

The Revenue is changing at a rate of $990 per unit.

6 0

3 years ago

Solve 2/3=3/10t I want an answer

Alecsey [184]

Answer:

1/5=t

Step-by-step explanation:

6 0

3 years ago

A population of rodents increases exponentially at a rate of 7.5% per year.

viktelen [127]

1. the answer is "0.62%".
We can calculate this as;
Rate = 7.5% per year
there are 12 months in a year so,
= 7.5/ 100 x 1/12
=0.075 x 1/12
= 0.00625
for percentage multiply it with 100,
= 0.00625 x 100
=0.625% = 0.62%
2.the answer is "1.53%".
We can calculate this as;
Rate = 18.3% per year
there are 12 months in a year so,
= 18.3/ 100 x 1/12
=0.183 x 1/12
= 0.01525
for percentage multiply it with 100,
= 0.01525 x 100
=1.525% = 1.53%

3 0

3 years ago