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3 years ago

Simplify ; 7a+4b+7a-3b

Mathematics

2 answers:

Afina-wow [57]3 years ago

8 0

14a+b is the correct answer

LuckyWell [14K]3 years ago

8 0

The answer is 14a+b
You need to add the like terms together:
7a+7a=14a
4b-3b=b (1b is the same as "b" but 1b is sloppy)

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Which teacher exhibited the most variable year to year performance over this 5 year span?

vlabodo [156]

I do not have the graph that you are referencing from this question to, but I can help you get led to the right answer. If the teacher exhibits the most variable year to year performance over a 5 year span, then the graph must show unstable fluctuating of figures. Those who are least variable would have a steady line going up or down or maybe even just straight.

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3 years ago

ACELLUS HELL ASAP

Scilla [17]

4/5 or 0.8 or 80%

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3 years ago

Pls help me in this i really need help :( :)

Andrews [41]

Hello and Good Morning/Afternoon:

Let's take this problem step-by-step:

First off, let's write the line in point-slope form:

$\rm \hookrightarrow (y-y_0)=m(x-x_0)$

(x₀, y₀) any random point on the line
'm' is the value of the slope

Let's calculate the slope:

$\rm \hookrightarrow Slope = \frac{y_2-y_1}{x_2-x_1}$

(x₁, y₁): any random point on the line ⇒ (-2, -6)
(x₂,y₂): any random point on the line that is not (x₁, y₁) ⇒ (2, -3)

$\rm \hookrightarrow slope = \frac{-3--6}{2--2} =\frac{3}{4}$

Now that we found the slope, let's put it into the point-slope form

⇒ we need (x₀, y₀) ⇒ let's use (2,-3)

$(y-(-3))=\frac{3}{4} (x-2)\\y+3=\frac{3}{4} (x-2)$

The equation, however, could also be put into 'slope-intercept form'

⇒ gotten by isolating the 'y' variable to the left

$y = \frac{3}{4}x-\frac{9}{2}$

Answer: $y = \frac{3}{4}x-\frac{9}{2}$ or $y+3=\frac{3}{4} (x-2)$

*Either equations work, put the one that you are the most familiar with

Hope that helps!

#LearnwithBrainly

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2 years ago

If g(x)=2x + 1, find g(a + h)- g(a). 2h 2h + 2 h + 1

katovenus [111]

G(x) = 2x + 1

Find g(a + h):
g(a + h) = 2(a + h) + 1 = 2a + 2h + 1

Find g(a):
g(a) = 2(a) + 1 = 2a + 1

Find g(a + h) - g(a):
g(a + h) - g(a) = 2a + 2h + 1 - ( 2a + 1)

Distribute the negative sign:
g(a + h) - g(a) = 2a + 2h + 1 - 2a - 1

Combine like terms:
g(a + h) - g(a) = 2h

Answer: 2h

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4 years ago

fred can complete a work in 6 days and Paul can complete a work in 3 days. if fred and Paul work together, how many days can the

defon

Answer:

I think its 3 or 2 days bc if paul can get two works done by the time fred can get one done then the days should be divided.

Step-by-step explanation:

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3 years ago