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boyakko [2]
3 years ago
14

The roots of the function f(x) = x2 – 2x – 3 are shown. What is the missing number?

Mathematics
1 answer:
vivado [14]3 years ago
4 0

Answer:x= 3

Step-by-step explanation:

(X+1)(x-3)=0

X-3=0

3. +3

X=3

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jenyasd209 [6]
Again, guess and test should work perfectly fine.  Since 2(x+y)=32, x+y = 16. Because y-2 =x, y could be = 9 and x = 7. Hope that help!
3 0
3 years ago
Read 2 more answers
Find the length of CU, the triangles are similar.
Otrada [13]

Answer:

CU = 117

Step-by-step explanation:

Since the triangles are similar then the ratios of corresponding sides are equal, that is

\frac{WC}{WU} = \frac{CD}{UV}

substituting in values to the ratios

\frac{26}{36x-1} = \frac{24}{132} ( cross- multiply )

24(36x - 1) = 3432 ( divide both sides by 24 )

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x = 4

CU = 36x - 1 - 26 = (36 × 4) - 27 = 144 - 27 = 117


3 0
3 years ago
I’m giving out brainlest to whoever answers this correctly!
borishaifa [10]

Answer:

A. 18.2

Step-by-step explanation:

b^2 + 14^2 = 23^2

b = sqrt(333) = 18.248

5 0
3 years ago
Can someone help me answer these two questions
andrew11 [14]

Answer:

C) 7=y=5x+11

B) m=-4/5, b=13/5

Step-by-step explanation:

<u>Problem 1:</u>

A function is linear if its slope is constant and/or its graph is straight (that means 1-degree polynomials only). Therefore, C is the only correct answer.

<u>Problem 2:</u>

Convert to slope-intercept form (y=mx+b):

4x+5y=13

5y=13-4x

y=13/5-4/5x

y=-4/5x+13/5

Now we can see that since the original equation is in slope-intercept form (y=mx+b), the slope, m, is -4/5, and the y-intercept, b, is 13/5, making option B the correct answer.

8 0
3 years ago
Name the subsets of -17
vagabundo [1.1K]
-17

an integer is a negative or positive whole number
a rational number is a number that can be turned into a fractions...can be either positive or negative.

so ur subsets are : rational number and integer
7 0
3 years ago
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