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irakobra [83]
2 years ago
7

GIVING BRAINLIEST AND 50 POINTS plssss HELLPLPLLPLLPLLP Select all of the expressions that are equal to

Mathematics
2 answers:
OLga [1]2 years ago
7 0

Answer:

alA, C, E would all be correct

Step-by-step explanation:

the explanation is quite simple just put them all together they all come out to 280.

faust18 [17]2 years ago
6 0

Answer:

A, C, E

Step-by-step explanation:

If we separate 35 into tens and units then:

8 × 35 = 8 × (30 + 5)

We can use the distributive property to expand the above:

8 × (30 + 5) = (8 × 30) + (8 × 5)

We can also separate 35 into 20 + 15:

8 × 35 = 8 × (20 + 15)

Therefore, the expressions that are equal to 8 × 35 are A, C and E

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Alex17521 [72]
For this question the answer would be letter d
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How to write in standard form y=7/4x+3
lawyer [7]
It is in standard form
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Choose the graph that matches the following system of equations: (6 points)
KengaRu [80]

The graph that matches the following system of equation is; the picture of a coordinate plane with line y equals negative 4x minus 1 and line y equals minus 3 over 2 times x plus 4. They intersect at negative 2, 7.

<h3>What is the graph of a function?</h3>

The graph of a function y = f(x) shows the position of the x-intercepts and y-intercepts from the graph from which the slope can be drawn.

The system of linear equations can be rewritten in slope-intercept form as follows:

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From the graph, the two equations intercept at point (-2,7).

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4 0
2 years ago
A certain city's population is 120,000 and decreases 1.4% per year for 15 years.
mart [117]

Answer:

  • Decay Problem.
  • Decay rate,  r = 0.014
  • Initial Amount =120,000
  • P(t)=120000(0.986)^t
  • P(10)=104,220

Step-by-step explanation:

The exponential function for growth/decay is given as:

P(t)=P_0(1 \pm r)^t, where:\\P_0$ is the Initial Population\\r is the growth/decay rate\\t is time

In this problem:

The city's initial population is 120,000 and it decreases by 1.4% per year.

  • Since the population decreases, it is a Decay Problem.
  • Decay rate, r=1.4% =0.014
  • Initial Amount =120,000

Therefore, the function is:

P(t)=120000(1 - 0.014)^t\\P(t)=120000(0.986)^t

When t=10 years

P(10)=120000(0.986)^10\\=104219.8\\\approx 104220 $ (to the nearest whole number)

8 0
3 years ago
If f(x)=2x, then f^-1(x)=
-BARSIC- [3]

f(x)=2x\to y=2x\\\\\text{change x and y}\\\\x=2y\\\\\text{solve for y}\\\\2y=x\qquad|:2\\\\y=\dfrac{x}{2}\\\\Answer:\ f^{-1}(x)=\dfrac{x}{2}

8 0
3 years ago
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