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2 years ago

Use the quadratic model P(x) = 25x2 − 24x + 615 to predict P(x) if x equals 8.

Mathematics

2 answers:

Nat2105 [25]2 years ago

7 0

If P(x) = 25x² - 24x + 615
Then, when x = 8:
P(x) = P(8)
= 25(8)² - 24(8) + 615
= 1600 - 192 + 615
= 2023

bija089 [108]2 years ago

6 0

Answer:

2023 is answer

Step-by-step explanation:

P(x)= $25x^2-24x+615$

for x =8 ,we get the value

P(8)= $25(8)^2-24(8)+615$

=1600-192+615

=2023

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Can you help me please??

dusya [7]

Answer:

y = $\frac{4}{5}x+\frac{54}{5}$

Step-by-step explanation:

Equation of a line has been given as,

$y=\frac{4}{5}x+\frac{3}{5}$

Here, slope of the line = $\frac{4}{5}$

y-intercept = $\frac{3}{5}$

"If the two lines are parallel, there slopes will be equal"

By this property slope of the parallel line to the given line will be equal.

Therefore, slope 'm' = $\frac{4}{5}$

Since, slope intercept form of a line is,

y = mx + b

Therefore, equation of the parallel line will be,

y = $\frac{4}{5}x+b$

Since, this line passes through a point (-6, 6),

6 = $\frac{4}{5}(-6)+b$

6 = $-\frac{24}{5}+b$

b = $6+\frac{24}{5}$

b = $\frac{30+24}{5}$

b = $\frac{54}{5}$

Equation of the parallel line will be,

y = $\frac{4}{5}x+\frac{54}{5}$

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2 years ago

4x - 7y = -40 <br> 3x - 2y = -4

Tanya [424]

<h2>Heres your answer: x=4,y=8</h2>

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3 years ago

Read 2 more answers

Use the order of operations to solve 4[2.5 3(20 7)]

liraira [26]

PEMDAS ( Parentheses, Exponents, Multiplication, Division, Addition, Subtraction)

4(2.53(207))

Since there are no equations in the parentheses, or exponents, we skip these, and head straight for multiplication:

4(523.7)

Then, do multiplication again:

2094.8

So that means, 4(2.53(207)) = 2094.8

I assume the brackets mean parentheses, since the absolute value of 523.7 does not mean anything in this equation.

8 0

3 years ago