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8090 [49]
3 years ago
6

Simplify the following expression. -20 + (-15) А. -5 B. 5 C. -35 D. 35

Mathematics
2 answers:
galina1969 [7]3 years ago
6 0

Answer:  

- 35

Step-by-step explanation:

- 20 + ( - 15 )

Remove the parentheses:

- 20 - 15

Solve:

- 35

arlik [135]3 years ago
4 0

Answer:

The answer is C. −35

Step-by-step explanation:

First, you remove the parentheses.

−20 − 15

Then, you simplify and you're done!

−35

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See the attachments below!!!
zavuch27 [327]

Answer:

1) x=0.465

2) option A.

Step-by-step explanation:

1) The given equation is:

{3}^{x + 2}  = 15We rewrite this as logarithm to get:

x + 2 =  log_{3}(15)

The change of base formula is:

log_{b}(y)  =  \frac{ log(y) }{ log(b) }

We apply the change of base formula on the RHS to get:

x + 2 =  \frac{ log(15) }{ log(3) }

x + 2 =  \frac{1.176}{0.477}

x + 2 = 2.465

Group similar terms:

x = 2.465 - 2.000 = 0.465

2)

From the graph, the logarithmic function approaches negative infinity as x approaches -6.

Therefore the vertical asymptote is x=-6

The graph touches the x-axis at x=-5, therefore the x-intercept is x=-5.

The correct answer is A.

6 0
4 years ago
What’s the answer to this
ryzh [129]

Answer:

  see below

Step-by-step explanation:

The graph extends to the left more or less horizontally, approaching the line y=3. The only choice that expresses that is the third one.

7 0
3 years ago
Your uncle is 2 years older than 3 times your age. You are 12 years old. How old is your uncle?
OlgaM077 [116]

Answer:

is it 38? cause 12 times 3 is 36 add 2 which is 38

6 0
3 years ago
Read 2 more answers
Which statement is true about the data?
vladimir1956 [14]

Answer:

B

Step-by-step explanation:

The diagram shows two box plots.

Liam's box plot shows the median = 10

                                     the range = 20 - 4 = 16  

Sumat's box plot shows the median = 14

                                     the range = 22 - 3 = 19

Difference between medians is 14 - 10 = 4

                  between ranges is 19 - 16 = 3

Thus, correct option is option B

7 0
3 years ago
Read 2 more answers
The diagram represents a reduction of a triangle by using a scale factor of 0.8.
Alekssandra [29.7K]

Answer:

4.8 inches

Step-by-step explanation:

<em>See comment for complete question</em>

Represent the larger triangle with 1 and the smaller with 2.

So, we have:

H_1 =6\ in -- height of 1

Required

Determine H2 --- Height of 2

To do this we apply dilation formula.

Original * Scale\ Factor = New

In this case:

H_1 * Scale\ Factor = H_2

Substitute 6 for H1 and 0.8 for Scale Factor

6* 0.8 = H_2

4.8= H_2

Hence, the height of the smaller triangle is 4.8 inches

3 0
3 years ago
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