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Alenkinab [10]
3 years ago
15

Which expressions are equal to the expression –16.8 – 4.7? Choose all answers that are correct.

Mathematics
1 answer:
ad-work [718]3 years ago
7 0
Use\ commutative\ property:a+b=b+a\\\\-16.8-4.7=-16.8+(-4.7)\\\\therefore:\\\\a.\ -4.7-16.8=-4.7+(-16.8)=-16.8+(-4.7)=-16.8-4.7\ CORRECT\\\\b.\ -4.7+16.8\ NOT\\\\c.\ -16.8+(-4.7)=-16.8-4.7\ CORRECT\\\\d.\ 16.8-(-14.7)=16.8+14.7\ NOT

Your\ answer:\huge\boxed{a\&c}
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You roll one 6sided dle, what is the probability of getting a 3, given that you know the number is odd?
katovenus [111]

Answer:

1/6

Step-by-step explanation:

Total number of outcome = 6. This is because it has 6 sides from number 1 to 6.

A) Probability of getting number 3 = 1/6 . This is because we have only one 3 in the outcome.

B) probability of getting odd number = total number of odd number ÷ total outcome .

The odd number are 1,3,5.

Therefore prob(odd) = 3/6 =1/2

I hope this was helpful, please mark as brainliest

4 0
4 years ago
Read 2 more answers
See attached file. show all work.
andrew11 [14]

The point-slope form of the equation for a line can be written as

... y = m(x -h) +k . . . . . . . for a line with slope m through point (h, k)

Your function gives

... f'(h) = m

... f(h) = k

a) The tangent line is then

... y = 5(x -2) +3

b) The normal line will have a slope that is the negative reciprocal of that of the tangent line.

... y = (-1/5)(x -2) +3

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You asked for "an equation." That's what is provided above. Each can be rearranged to whatever form you like.

In standard form, the tangent line's equation is 5x -y = 7. The normal line's equation is x +5y = 17.

3 0
3 years ago
What is z?<br> 5z+8=4z+20<br> Once again im struggling and need help fast..=)
mixas84 [53]
Z= 12 hope this helps
4 0
3 years ago
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Solve for x.<br> Put your answer in decimal form.
liberstina [14]

Answer:

i don't know

Step-by-step explanation:

7 0
3 years ago
The cost of renting a bus for a field trip was split evenly among 20 students. At the last minute, 10 more students joined the t
dexar [7]

By solving a linear equation, we will see that the total cost for renting the bus is $90.

<h3>What was the total cost of renting the bus, in dollars?</h3>

Let's say that the total cost is C.

When there are 20 students, each student should pay:

p = C/20

When the other 10 students are added (for a total of 30) each student pays:

p' = C/30.

We know that the cost for each of the original 20 students decreased by $1.50, so:

p' = p - $1.50

Then we have 3 equations to work with:

p = C/20

p' = C/30.

p' = p - $1.50

Now we can replace the first and second equations into the third one:

C/30 = C/20 - $1.50

Now we can solve this linear equation for C:

C/20 - C/30 = $1.50

C*( 1/20 - 1/30) = $1.50

C*(30/600 - 20/600) = $1.50

C*(10/600) = $1.50

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C = 60*$1.50 = $90

So the total cost for renting the bus is $90.

If you want to learn more about linear equations:

brainly.com/question/1884491

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2 years ago
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