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Ksju [112]
4 years ago
13

Which expression correctly factors the polynomial?

Mathematics
1 answer:
Len [333]4 years ago
4 0

Answer:

B

Step-by-step explanation:

9x² - 49 ← is a difference of squares and factors in general as

a² - b² = (a - b)(a + b)

Thus

9x² - 49

= (3x)² - 7²

= (3x - 7)(3x + 7) → B

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Create2 ratios that are equivalent to the ratios below6:10 answer
Andrews [41]

Answer:

3:5, 12:20

Step-by-step explanation:

A ratio is basically just a fraction. Therefore, 6:10 is just 6/10, or 3/5, or 3:5. It's the same thing as a fraction, just with a colon.

Thus, all you need is two equivalent fractions to 6/10. Examples are 3/5, 12/20, 30/50, etc. After you find the fractions, you just need to put them back into ratio form, so 3:5, 12:20, 30:50, etc.

4 0
3 years ago
Lauren's cat weighs 3 pounds more than half of Adrian's cat. Lauren's cat weighs 10 pounds.
monitta

Answer:

w = weight of Adrian's cat

c = weight of Lauren's cat

c = 3 + w/2

given: c=10

10 = 3 + w/2

Solve to get 'w':    20=6+w; w=14 pounds

Step-by-step explanation:

3 0
3 years ago
Write an equation
Valentin [98]
Y-1=4(x-(-2))
y-1=4x+8
Is this what you wanted ?
5 0
3 years ago
What are the slopes of (-3,1),(-7,-2) and (2,-1),(8,4)
saveliy_v [14]

Answer:

(3,4) (-3,-6)

Step-by-step explanation:

1--2 -3--7

-1-4 2-8

5 0
3 years ago
Mrs. Morales wrote a test with 16 questions covering spelling and vocabulary. Spelling questions (x) are
fiasKO [112]

Answer:

<h3>5x+10y=100</h3>

Step-by-step explanation:

X+Y = 15

<h3>Sum of two types of question is 15</h3>

x+y-x = -x+15

<h3>y= -x+15</h3>

5(x)+10(y)=100

5x+10y=100

<h3>Total no. if points is 100</h3>

5x+10y-5x=-5x+100

10y= -5x+100

y=5/10x + 100/10

y= -1/2x+10

<h3>Slope intercept form</h3>

(10,5)

8 0
3 years ago
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