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3 years ago

A. m=3h-24B. m=3h+24C. m=8hD. m=8h+8please help me

Mathematics

1 answer:

jolli1 [7]3 years ago

4 0

Formular for line graph is
$y=mx+b$

Find the gradient first
${ \frac{y1-y2}{x1-x2} } \\ \\ = { \frac{0-80}{0-10} } \\ \\ = { \frac{-80}{-10} } \\ \\ = 8$

Substitude the gradient to the formular

$80=8(10)+b \\ \\ b=0$

∴ m=8h is the equation of the graph.

Answer is C.

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HELP! <3<br><br> I have other questions as well not yet posted, if you'd like more points! :3

ratelena [41]

Option B: $\frac{AB}{BC}=\frac{AE}{ED}$ is sufficient to prove that $BE$ ll $CD$

Explanation:

Given that ACD is a triangle.

The line EB intersects the sides AC and AD of the triangle.

The point E intersect the side AD and B intersect the side AC.

We need to prove that $BE$ ll $CD$

Then, the side splitter theorem states that "If a line intersects two sides of a triangle and divides the sides proportionally, the line is parallel to the third side of the triangle".

From the side splitter theorem, the line EB intersects the two sides of the triangle AC and AD and divides the sides proportionally.

Thus, the proportion of the sides is given by

$\frac{AB}{BC}=\frac{AE}{ED}$

This proportionality shows that the line is parallel to the third side of the triangle.

Hence, $\frac{AB}{BC}=\frac{AE}{ED}$ is sufficient to prove that $BE$ ll $CD$

Therefore, Option B is the correct answer.

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3 years ago

11. Kamala borrowed 26400 from a bank to buy a scooter at a rate of 15% per annum compounded yearly. What amount will she pay at

oee [108]

<h2>Answer </h2>

Amount (A) = P[1 + (r/100)]n

Principal (P) = ₹ 26400

Time period (n) = 2 years 4 months

Rate % (R) = 15% compounded annually

<h3>Steps </h3>

First, we will calculate Compound Interest (C.I) for the period of 2 years

A = P[1 + (r/100)]n

= 26400[1 + (15/100)]²

= 26400[(100/100) + (15/100)]²

= 26400 × 115/100 × 115/100

= 26400 × 23/20 × 23/20

= 26400 × 1.3225

= 34914

C.I. = A - P

= 34914 - 26400

= 8514

Now, we will find Simple Interest (S.I) for the period of 4 months

Principal for 4 months after C.I. for 2 years = ₹ 34,914

S.I = PRT/100

Here T = 4 months = 4/12 years = 1/3 years

S.I. for 4 months = (1/3) × 34914 × (15/100)

= (1/3) × 34914 × (3/20)

= 34914/20

= 1745.70

Total interest for 2 years 4 months = 8514 + 1745.70

= 10259.70

Total amount for 2 years 4 months = 26400 + 10259.70

= ₹ 36659.70

<h3>So , the correct answer is ₹ 36659.70 . </h3>

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2 years ago

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Answer:

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