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statuscvo [17]
3 years ago
7

PLEASE ANSWER THIS QUESTION !! WILL GIVE BRAINLIEST !! 20 POINTS !!

Mathematics
2 answers:
Reil [10]3 years ago
8 0

Answer:

(2x+1)(x+7)

Step-by-step explanation:

Guess and Check

(2x+7)(x+1) = 2x^2+9x+7. NOPE

(2x+1)(x+7) = 2x^2+15x+7. YES

bogdanovich [222]3 years ago
7 0

Answer:

=  (2x + 1)(x + 7) \\

Step-by-step explanation:

2 {x}^{2}  + 15x + 7 \\ 2 {x}^{2}   + 14x + x + 7 \\ 2x(x + 7) + 1(x + 7) \\ =  (2x + 1)(x + 7)

hope this helps

brainliest appreciated

good luck! have a nice day!

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Find a and k so that the given points lie on the parabola (An algebraic solution is required)
Aleks [24]

For the given points to lie on the parabola,

a = -3 and k = 10.

An equation of a curve that has a point on it that is equally spaced from a fixed point and a fixed line is referred to as a parabola. The parabola's fixed line and fixed point are together referred to as the directrix and focus, respectively. It's also crucial to remember that the fixed point is not located on the fixed line. A parabola is a locus of any point that is equally distant from a given point (focus) and a certain line (directrix).

According to the question,

Equation of parabola : y = a(x-2)^{2} + k

Points A(1,7) and B(4,-2)

For the points to lie on the parabola,

7 = a(1-2)^{2}+k

7 = a + k

Similarly,

-2 = a(4-2)^{2} + k

-2 = 4a + k

On solving the two equations simultaneously, we get,

a = -3

k = 10

Learn more about parabolas here:

brainly.com/question/4061870

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2 years ago
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Name a 2 digit odd number that is prime. Name a 2 digit odd number that is composite .
salantis [7]
11 for the first one and 12 for the second one
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3 years ago
Guy is reading a science fiction book that is 558 pages long.If he reads 28 pages each day,how many days will it take him to rea
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Answer:

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Step-by-step explanation:

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The table shows the decay rate for a certain radioactive material over time. In this context, what does the y-intercept represen
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At 0 hours, there are 100 grams of the substance remaining.

Step-by-step explanation:

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2 years ago
Consider the graph of the linear equation 2x-5y=10. What is the x-intercept? What is the y-intercept? What is the slope?
GenaCL600 [577]
Hey there!

This linear equation is written in standard form, a form in which it's quite easy to find intercepts for one main reason. This reason revolves around zeros. When you see an x intercept, there's always a zero for the y, and when there's a y you see a zero for the x. Therefore, we can do this to get the intercepts.

For x:

2x-5(0) =10
2x = 10
x = (5,0)

For y:

2(0) -5y = 10
-5y=10
y= (0,-2)

Now, to find the slope, we can easily convert it to slope intercept form:

y = mx+b

Where m is the slope and b is he y intercept.

2x-5y=10
-5y=-2x+10
y = 2/5x-2
(notice how we divided both sides by -5)

Therefore, our slope is 2/5. Hope this helps!
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