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3 years ago

15

7) 2 1 Please help giving Brainly

1 answer:

Mama L [17]3 years ago

5 0

Answer:

You should use MathPapa.

Step-by-step explanation:

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Can someone please help me with #2?

Norma-Jean [14]

For problem 2, you are correct in stating that a curve forms. Specifically, if we were to trace along the outer edge of the shape, then we'd form a <u>parabola</u> that has been tilted 45 degrees compared to the more familiar form that students are taught (where the axis of symmetry is vertical).

For more information, search out "Tangent method for parabolas". As the name implies, the tangent method draws out the tangents of the parabola which helps form the parabola itself.

Everything else on your paper is correct. You have problem 1 correct, and the table is filled out perfectly. Nice work.

4 0

2 years ago

5. A rectangle has an area of 16 cm². Do you know its length?

timurjin [86]

Answer:

144 $cm^2$

Step-by-step explanation:

3 0

2 years ago

Read 2 more answers

<img src="https://tex.z-dn.net/?f=10%5Csqrt12%20%2B4%5Csqrt%7B192" id="TexFormula1" title="10\sqrt12 +4\sqrt{192" alt="10\sqrt12

crimeas [40]

Here's the answer :)

5 0

3 years ago

Ali, Carrie and Bryan received a sum of money. Bryan's money was 3/5 as much as Ali's money. The ratio of Ali's money to Carrie'

monitta

Answer:

The sum of money received by Ali, Carrie and Bryan is $ 740.

Step-by-step explanation:

At first we translate mathematically each sentence:

(i) <em>Ali, Carrie and Bryan received a sum of money. </em>

$a$ - Ali's money.

$b$ - Bryan's money.

$c$ - Carrie's money.

(ii) <em>Bryan's money was </em> $\frac{3}{5}$ <em> of Ali's money</em>.

$b = \frac{3}{5}\cdot a$ (1)

(iii) <em>The ratio of Ali's money to Carrie's money was 4 : 1</em>.

$\frac{a}{c} = 4$ (2)

(iv) <em>Ali had $ 160 more than Bryan</em>.

$a = b + 160$ (3)

After some algebraic handling, we have the following system of linear equations:

$3\cdot a - 5 \cdot b = 0$ (1b)

$a - 4\cdot c = 0$ (2b)

$a - b = 160$ (3b)

The solution of the system is: $a = 400$ , $b = 240$ , $c = 100$

The sum of money is:

$s = a + b + c$

$s = 740$

The sum of money received by Ali, Carrie and Bryan is $ 740.

4 0

3 years ago

A 12-foot ladder leans against the wall makes an angle of 62.87 degrees with the ground. How high up the wall does the ladder re

Alex

Answer:

10.68 ft

Step-by-step explanation:

sin(62.87)=x/12

12sin(62.87)

=10.68 ft

4 0

2 years ago