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Anuta_ua [19.1K]

3 years ago

6

A rectangle has its diagonal length increased from 7 cm to 49 cm. The new rectangle is similar to the original one. The original

perimeter was 24 cm. What is the measure of the new perimeter?

2 answers:

Otrada [13]3 years ago

7 0

Yup 168 cm is the new perimeter

maksim [4K]3 years ago

6 0

Answer:

168 cm is the new perimeter

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Does anyone know this lol i just need a short explanation

maks197457 [2]

Answer: pretty sure it’s because the left and bottom sides add up to equal the top side

Step-by-step explanation:

4 0

3 years ago

Make V the subject of the formula E=mv2/2

Dima020 [189]

Answer:

v = ± $\sqrt{\frac{2E}{m} }$

Step-by-step explanation:

Given

E = $\frac{mv^2}{2}$ ( multiply both sides by 2 to clear the fraction )

2E = mv² ( divide both sides by m )

$\frac{2E}{m}$ = v² ( take the square root of both sides )

v = ± $\sqrt{\frac{2E}{m} }$

5 0

4 years ago

Calculate the value of x in each case.

Marat540 [252]

Answer:

√408

Step-by-step explanation:

First of all, let's name the top triangle n and the bottom one m, you can name them as you'd like.

okay, so, based on the Pythagorean theorem, a^2 + b^2 = c^2

now, we know that the area that is 12 units long, is equivalent to the hypotenuse of m, (it's very important that the bottom right angle is 90 degrees) and therefore, (5^2 = 25) 5^2 + ___ = 12^2 now let's solve that:

25 + _____ = 144 now just fill in the blank. With a simple subtraction, we get 119 (144 - 25 = 119), now remember, this is c^2 of m

and, 12+5=17 so, a of the n triangle is 17.

so let's put everything together: 17^2 + 119 = x^2

now, we're gonna calculate it: 17^2 = 289 and we're gonna add that to 119, so we get 408: 289 + 119 = x^2

But, this is x^2, and we want to find the value of x, so we have to find the square root of 408. Since we get a number with a lot of decimals in front of it, we're just gonna leave it as is, therefore the answer is √408

Hope it helped!

4 0

2 years ago

How do you solve this equation: 5w – 4w + 4 = 14 ?

noname [10]

First combine the like terms 5w and -4w to get just w.
so now the problem looks like:

w + 4= 14

subtract 4 from each side now. and you get the answer:

w = 10

7 0

3 years ago

Read 2 more answers

What value represents the vertical translation from the graph of the<br> (x+5)2+3?<br> 0 -5<br> O-3

neonofarm [45]

Answer:

The value 3 represents the vertical translation upwards of $f(x)$ to $g(x)$

Step-by-step explanation:

The question is incomplete or missing data.

The correct question

What value represents the vertical translation from the graph of the parent function $f(x) = x^2$ to the graph of the function

$g(x) = (x + 5)^2 + 3$ ?

Given functions:

Parent function

$f(x) = x^2$

Translated function

$g(x) = (x + 5)^2 + 3$

Translation rules

For horizontal shift

$f(x)\rightarrow f(x+c)$

If $c>0$ the function shifts $c$ units to the left.

If $c$ the function shifts $c$ units to the right.

For vertical shift

$f(x)\rightarrow f(x)+c$

If $c>0$ the function shifts $c$ units to the up.

If $c$ the function shifts $c$ units to the down.

From the functions given the translation rule can be given as:

$f(x)\rightarrow f(x+5)+3$

$g(x)=f(x+5)+3$

This shows the graph is shifted left by 5 units and upwards by 3 units.

Thus the value 3 represents the vertical translation of $f(x)$ to $g(x)$

5 0

4 years ago