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Anni [7]
3 years ago
9

Which of the lines graphed has a slope of -2 and a y-intercept of 3?

Mathematics
2 answers:
natulia [17]3 years ago
4 0
I think it’s A because in the graph it’s going down -2
skelet666 [1.2K]3 years ago
4 0
Ok...so if u have a slope of -2, this means ur line is decreasing...it is going down...that eliminates A and B

ur y int, where the line crosses the y axis is 3....out of the 2 graphs left, the only one where the line crosses the y axis at 3 is C

ur graph is C <===
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If Miguel types 40 words per minute and he types for 30 minutes how many words will he have typed total? *
krok68 [10]

Answer:

1200 words

Step-by-step explanation:

If he types 40 words a minute, you have to multiply that by thirty because he typed 40 words 30 timers. 40 x 30=1200

8 0
3 years ago
Read 2 more answers
How would you do this problem
ICE Princess25 [194]
If line BC is congruent to line BD then angles C and D are also congruent
so you would set up the problem to find <em>x </em>as:
5x-19=2x+14
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5x=2x+33
-2   -2
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4 0
3 years ago
C=1/4 (d+3) make d the subject​
trasher [3.6K]

Answer:

4c-3=d

Step-by-step explanation:

4c=d+3

4c-3=d

4 0
3 years ago
A population of insects grows exponentially, as shown in the table. Suppose the increase in population continues at the same rat
oksano4ka [1.4K]

<u>Answer-</u>

<em>The insect population at the end of week 11 is </em><em>1730</em><em>.</em>

<u>Solution-</u>

A population of insects grows exponentially.

The general form of exponential function is,

y=ab^x

Where,

a, b are constants.

Putting the data given in the table, in the the equation in order to get the values of a, b

At (0, 20)

\Rightarrow 20=ab^0

\Rightarrow a\cdot (1)=20

\Rightarrow a=20

Now the exponential function becomes,

y=20b^x

At (1, 30)

\Rightarrow 30=20b^1

\Rightarrow 20b=30

\Rightarrow b=\dfrac{30}{20}

\Rightarrow b=\dfrac{3}{2}

Now the equation becomes,

y=20(\frac{3}{2})^x

For calculating the number of insects at the end of the 11th week, putting x=11, so

y=20(\frac{3}{2})^{11}

=1729.95 \approx 1730

8 0
4 years ago
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How many different combinations of two can be made from 80 people?
Alexeev081 [22]

Plugging directly into the combination formula, the answer is \binom{80}{2}=\frac{80!}{2!78!}=\frac{80\cdot 79}{2\cdot 1}=40\cdot 79=\boxed{3160}, where we have cancelled out common factors.

3 0
4 years ago
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