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3 years ago

20 POINTS!!

Mathematics

1 answer:

Finger [1]3 years ago

6 0

Answer:

Since we have two congruent sides with one congruent angle in between the answer is SAS.

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The librarian noticed that 60% of seventh graders checked out fantacy books. About how many of 240 seventh graders would check o

ehidna [41]

Answer:

The correct answer is 144.

Step-by-step explanation:

The librarian noticed that 60% of total seventh graders checked out fantasy books from the library.

Total number of seventh graders is given to be 240.

Number of seventh grade students who checked out fantasy books = 60% of 240 = 0.6 × 240 = 144.

Thus out of 240 seventh graders 144 of them would check out a fantasy book from the library.

4 0

3 years ago

Kristin bought a pack of 12<br> pencils for $1.25. How<br> much was each pencil?????????????

gregori [183]

Answer:

$0.10/pencil

Step-by-step explanation:

Find the unit cost. To do this, divide $1.25 by 12 pencils, obtaining:

$1.25

---------------- = $0.1042/pencil, or (more logically) $0.10/pencil

12 pencils

5 0

3 years ago

Anybody know the answer to any of these

Tresset [83]

<h3>Answers :-</h3>

Answer 1 → tanZ = 21/28 = 3/4
Answer 2 → cosC = 16/34 = 8/17
Answer 3 → sinC = 28/35 = 4/5
Answer 4 → tanX = 24/32 = 3/4
Answer 5 → cosA = 20/34 = 10/17
Answer 6 → sinA = 32/40 = 4/5
Answer 7 → sinZ = 24/32 = 3/4
Answer 8 → sinC = 14/50 = 7/25

7 0

3 years ago

A raffle sold 1,000 tickets. What is the theoretical probability of having the winning ticket? P(winning ticket) =

Bess [88]

Answer:

Your answer is 1/1000

The probablity couldn't be higher than that because there is only one winning ticket.

3 0

3 years ago

Read 2 more answers

Which function represents g(x), a reflection of f(x) = On a coordinate plane, 2 exponential functions are shown. g (x) decreases

Vanyuwa [196]

Answer:

$g(x)=\frac{1}{2}(3^{-x})$

Step-by-step explanation:

Given:

The graph of function $f(x)\ and\ g(x)$ are given.

The equation for $f(x)$ is given as:

$f(x)=3^x$

Now, the graph of $g(x)$ is a reflection of $f(x)$ .

The graph of $g(x)$ passes through the point (-1, 1.5) [second quadrant] and crosses the y-axis at (0, 0.5).

As evident from the graph, the functions $f(x)\ and\ g(x)$ are reflections about the y-axis.

We know the transformation rule for reflection about the y-axis as:

$f(x)\to f(-x)\\\\\therefore 3^x\to3^{-x}....(\textrm{Reflection about y-axis})$

Now, the y-intercept of the function $y=3^{-x}$ is obtained by plugging in $x=0$ . This gives,

$y=3^0=1$

So, the y-intercept is at (0, 1). But the graph of $g(x)$ crosses the y-axis at (0, 0.5). As we observe, the coordinate rule for the transformation can be written as:

(0, 1) → (0, 0.5)

$(x,y)\to (x,\frac{1}{2}y)$

So, the reflected graph is compressed vertically by a factor of $\frac{1}{2}$ .

Therefore, the transformation is given as:

$y\to \frac{1}{2}y\\\\\therefore 3^{-x}\to \frac{1}{2}(3^{-x})$

Therefore, the equation for $g(x)$ is:

$g(x)=\frac{1}{2}(3^{-x})$

8 0

2 years ago

Read 3 more answers