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saveliy_v [14]
3 years ago
15

Plssssssssss helpppppppp 2q'sssssssssssss

Mathematics
1 answer:
anastassius [24]3 years ago
4 0

y=5×+630 that's question 1

the other question im not sure

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Eval the expression for k=8<br><br><br> -1.3k=
Tanzania [10]

Answer:

-10.4

Step-by-step explanation:

If k=8

then, -1.3k=-1.3x8 = -10.4

5 0
3 years ago
F(x)= 2x^2 + k/x point of inflection at x=-1 then value of k is
Nady [450]
I think it isss 2 :)))
4 0
4 years ago
Please Help me someone! I dont even know where to start.<br> Solve for X
professor190 [17]
So hmm notice the picture below

running a segment from the right-angle perpendicular to the opposite side, gives three similar triangles, one small, a medium and a large one

now, using proportions, you can simply \bf \textit{using proportions}&#10;\\\\\\&#10;\cfrac{large}{small}\qquad \cfrac{10}{6}=\cfrac{x}{10}

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8 0
3 years ago
What are the solutions of 3(x – 4)(2x – 3) = 0? Check all that apply.
lana66690 [7]

Answer:

x = 4, x = 3/2

Step-by-step explanation:

3(x - 4)(2x - 3) = 0

x - 4 = 0  ,  or 2x-3 = 0

x = 4, x = 3/2

6 0
3 years ago
Read 2 more answers
The quadratic function y = -x2 + 10x - 8 models the height of a trestle on a bridge. The x-axis represents ground level. To find
ss7ja [257]

Answer:

The trestle meets ground level at 0.9 units and 9.1 units

Step-by-step explanation:

∵ -x² + 10x - 8 = 0 ⇒ × (-1)

∴ x² - 10x + 8 = 0

∵ 10x/2 = 5x ⇒ (x) × (5) ⇒ square x is x² and square 5 is 25

By using completing square form

∴ (x² - 10x + 25) - 25 + 8 = 0

∴ (x - 5)² - 17 = 0

∴ (x - 5)² = 17 ⇒ take square root for both sides

∴ x - 5 = -√17 ⇒ x = -√17 + 5 = 0.9

∴ x - 5 = √17 ⇒ x = √17 + 5 = 9.1

∴ The trestle meets ground level at x = 0.9 and x = 9.1

5 0
4 years ago
Read 2 more answers
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