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3 years ago

Which of the following expressions are equivalent to -5+7-(-3).

Mathematics

2 answers:

SpyIntel [72]3 years ago

7 0

Answer:

Step-by-step explanation:

mark brainliest its just in different form

Vsevolod [243]3 years ago

3 0

A

would be the correct answer because the subtracting a negative is just adding it.

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The point (3, 6) is on the graph of y= 5f(2(x+3))-4 . Find the original point on the graph of y=f(x).

Sonja [21]

Answer:

(12, 2) is the original point on the graph of $y=f(x)$ .

Step-by-step explanation:

Given:

$y= 5f(2(x+3))-4$ has a point (3, 6) on its graph.

To find:

Original point on graph $y=f(x)$ = ?.

Solution:

We are given that The point (3, 6) is on the graph of $y= 5f(2(x+3))-4$

If we put x = 3 and y = 6 in $y= 5f(2(x+3))-4$ , it will satisfy the equation.

Let us the put the values and observe:

$6= 5f(2(3+3))-4\\\Rightarrow 6= 5f(2(6))-4\\\Rightarrow 6= 5f(12)-4\\\Rightarrow 6+4=5f(12)\\\Rightarrow 5f(12)= 6+4\\\Rightarrow 5f(12)= 10\\\Rightarrow f(12)= \dfrac{10}{5}\\\Rightarrow f(12)= 2\\OR\\\Rightarrow 2=f(12)$

Now, let us compare the above with the following:

$y=f(x)$

we get y = 2 and x = 12

So, the original point on graph of $y=f(x)$ is (12, 2).

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3 years ago

jasmine answered 19 out of 25 questions correctly on a quiz. about what percent of her answers were correct?

Marina86 [1]

You divide 19 by 25 and then multiply by 100. The percent Jasmine got on her test is 76%.

5 0

3 years ago

48% of US adults have very little confidence in newspapers you randomly selected 10 US adults. Find the probability that the num

aivan3 [116]

Answer:

$P(x = 5) = 0.2441$

Step-by-step explanation:

Given

$p = 0.48$ --- proportion that have very little confidence

$n = 10$ --- sample

Required

Determine the probability that exactly 5 have very little confidence

This question will be solved using binomial probability:

$P(x) = ^nC_xp^x(1-p)^{n-x}$

In this case: x = 5.

So, we have:

$P(x = 5) = ^{10}C_5*0.48^5(1-0.48)^{10-5}$

$P(x = 5) = ^{10}C_5*0.48^5*0.52^5$

$P(x = 5) = 252*0.48^5*0.52^5$

$P(x = 5) = 0.2441$

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3 years ago

What is 16.403 rounded to the nearest tenth

Alex787 [66]

16.4 because the number after 4 is 0 so it stays the same.

5 0

3 years ago

Read 2 more answers

Use the order of operations to evaluate this expression: 7 + (5 – 9)2 + 3(16 ÷ 8).

Jet001 [13]

Remember to use PEMDAS when solving.

= 7 + (5 – 9)2 + 3(16 ÷ 8)

= 7 + (-4)2 + 3(2)

= 7 + (-8) + 6

= -1 + 6

= 5

Best of Luck!

3 0

3 years ago