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wolverine [178]

2 years ago

13

Dilations Quick Check Geometry Connexus U4L5

1 answer:

olga2289 [7]2 years ago

8 0

Just use quiz lit and it’ll give you all the answers you need for your answers. Ok. Ok. Keixhshshwiwie I rrjicicjrjwjwiwosodod.

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HELP!!!!!!!!!!!!!! ILL GIVE BRAINILIST

Scorpion4ik [409]

$\frac{1}{3} \div \frac{4}{5} \\ \\ \frac{1}{3} \times \frac{5}{4} \\ \\ \frac{1 \times 4}{3 \times 4} \times \frac{5 \times 3}{4 \times 3} \\ \frac{4}{12} \times \frac{15}{12} \\ \frac{4 \times 5}{12} \\ \frac{60}{12} \\ 5 \: \: \: \: answer$

5 0

2 years ago

(4x + 4)(ax – 1) – x2 +4

Oksana_A [137]

Answer:

b=-3

Step-by-step explanation:

If the expression simplifies to bx that means the $x^{2}$ terms and the constant terms must be cancel out.

Simplify it first.

$(4x+4)(ax-1)-x^{2} +4\\=(4ax^{2} -4x+4ax-4)-x^{2} +4\\=4ax^{2} -x^{2} -4x+4ax-4+4\\=4ax^{2} -x^{2} -4x+4ax$

We know –4 + 4 will cancel out. If we simplify this expression to only an x term, then the $x^{2}$ terms should be cancelled. Therefore, we say that 4ax^2 – x^2 = 0.

$4ax^{2} -x^{2} =0\\x^{2} (4a-1)=0\\4a-1=0\\4a=1\\a=\frac{1}{4}$

If we put a = ¼, then we can find the value of b:

$=4(\frac{1}{4} )x^{2} -x^{2} -4x+4(\frac{1}{4} )x\\=x^{2} -x^{2} -4x+x\\ (cancel out x^{2} terms)\\$

$=-3x$

$bx=-3x\\$ if the expression is equivalent to bx

Therefore, b = –3.

8 0

2 years ago

I need help with this practice problem solving This is trigonometry from my ACT prep guide

Novay_Z [31]

Take into account, that in general, a cosine function of amplitude A, period T and vertical translation b, can be written as follow:

$f(x)=A\cos (\frac{2\pi}{T}x)+b$

In the given case, you have:

A = 4

T = 3π/4

b = -3

By replacing you obtain:

$\begin{gathered} f(x)=4\cos (\frac{2\pi}{\frac{3\pi}{4}}x)-3 \\ f(x)=4\cos (\frac{8}{3}x)-3 \end{gathered}$

Hence, the answer is:

f(x) = 4cos(8/3 x) - 3

6 0

6 months ago

What is the answer? I'll give branliest

Katena32 [7]

Answer:

a

Step-by-step explanation:

8 0

2 years ago

Find the area of a sector with a 4 inch radius and arc measure of 90 degrees. use 3.14 for pi.

gulaghasi [49]

Answer:

$\frac{90}{360} \pi{r}^{2} \\ \frac{1}{4} \times 3.14 \times { 4}^{2} \\ = 12.56 {in}^{2}$

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6 0

2 years ago