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bixtya [17]
3 years ago
8

Factor f(x) = 4x^2 − 5x − 21

Mathematics
1 answer:
jeka943 years ago
4 0

Answer:

x = -7/4, 3

Step-by-step explanation:

Use quadratic formula

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dybincka [34]
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75, simple enough. Now we know that half of 150 is 75.
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8 0
3 years ago
Which function BEST expresses the linear relationship displayed by the scatter plot?
Harrizon [31]

Answer:

C

Step-by-step explanation:

We want a line of best fit, which means we want to create a line that the data points will lie closest to.

One thing we can do is find the slope between the bottom-leftmost point and the top-rightmost point. This is because if we were to draw a line connecting these two, it will cut through the data quite well.

Those two points are (9, 15) and (16, 18), so the slope is change in y divided by the change in x:

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Eliminate A and B.

Now we need to determine the y-intercept. This needs no calculations; simply look at the graph: there's no way a line cutting through the y-intercept point of (0, 18) will perfectly match the data points; instead it must be a y-intercept lower than 18. So, eliminate D.

The answer is C.

6 0
3 years ago
Read 2 more answers
Factor each expression 30+10x-40y
Sergio039 [100]
Hello!

To factor you find the biggest number they can be divided by

The biggest number that all the number can be divided by is 10

You put that outside parenthesis

10()

Divide the expression by 10

3 + x - 4y

Put the two together

10(3 + x + 4y)

Hope this helps!
4 0
3 years ago
How many pairs of whole numbers have the sum of 99
valentina_108 [34]
50 pairs of whole numbers
7 0
3 years ago
Tyler needs to complete this table for his consumer science class. He knows that 1 tablespoon contains 3 teaspoons and that 1 cu
aalyn [17]

Answer:

1 pint=32    1 quart=64    1 gallon=256

Step-by-step explanation:

5 0
3 years ago
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