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4 years ago

Please answer asap. there are two pics :)

Mathematics

1 answer:

Thepotemich [5.8K]4 years ago

8 0

Answer:

$\boxed{\sf A. \ 0.34}$

Step-by-step explanation:

The first triangle is a right triangle and it has one acute angle of 70 degrees.

We can approximate $\sf \frac{WY}{WX}$ from right triangle 1.

The side adjacent to 70 degrees is WY. The side or hypotenuse is WX.

The side adjacent to 70 degrees in right triangle 1 is 3.4. The side or hypotenuse is 10.

$\sf \frac{3.4}{10} =0.34$

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Write an expression that has four terms. your expression should have three different variables and a constant

Katyanochek1 [597]

A term is a number or variable in a math sentence (such as an expression or equation).

Example:

a + 2b + c + 5

5 is a constant; a,b, c are all variables.

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3 years ago

Help and explain explain !!!!!!!!!!

tigry1 [53]

Answer:

$x=-1\text{ or }x=11$

Step-by-step explanation:

For $a=|b|$ , we have two cases:

$\begin{cases}a=b,\\a=-b\end{cases}$

Therefore, for $18=|15-3x|$ , we have the following cases:

$\begin{cases}18=15-3x,\\18=-(15-3x)\end{cases}$

Solving, we have:

$\begin{cases}18=15-3x, -3x=3, x=\boxed{-1},\\18=-(15-3x), 18=-15+3x, 33=3x, x=\boxed{11}\end{cases}$ .

Therefore,

$\implies \boxed{x=-1\text{ or }x=11}$

3 0

3 years ago

A bike originally costs $529.99 and is on sale for $317.99. What was the amount discounted?

alexgriva [62]

The answer is: $212.
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3 years ago

Read 2 more answers

27^x = 9^x − 4 Question 1 options: x = 8 x = 4 x = −4 x = −8

Mariulka [41]

Answer:

x = -8

Step-by-step explanation:

Given the equation:

$27^x=9^{x-4}$

Note that

$27=3^3\\ \\9=3^2,$

then

$27^x=(3^3)^x=3^{3x}\\ \\9^{x-4}=(3^2)^{x-4}=3^{2(x-4)}$

Rewrite the equation as

$3^{3x}=3^{2(x-4)},$

then

$3x=2(x-4)\\ \\3x=2x-8\\ \\3x-2x=-8\\ \\x=-8$

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4 years ago

Lolo typed 1,125 words in 15 minutes. Let w repersent the number of words each minute. If Lolo typed the same number of words ea

satela [25.4K]

Answer:

1125/15= 75

75 words per minute

3 0

3 years ago