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3 years ago

B.-4.5 = a - 8 help pls I can’t think.

Mathematics

2 answers:

lorasvet [3.4K]3 years ago

4 0

Answer:

3.5

Step-by-step explanation:

Ilia_Sergeevich [38]3 years ago

3 0

Answer:

3.5

Step-by-step explanation:

Please share the instructions next time. I will assume that you want to solve -4.5 = a - 8 for a. If that's the case, add 8 to both sides to isolate a:

8 - 4.5 = a, or

a = 3.5

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Help finding derivative

marusya05 [52]

$\bf \displaystyle \cfrac{d}{dx}\left[ \int\limits_{\sqrt{x}}^{\frac{\pi }{2}}~[cos(t^2)]dt \right]\implies \cfrac{d}{dx}\left[ -\int\limits_{\frac{\pi }{2}}^{\sqrt{x}}~[cos(t^2)]dt \right]\\\\\\ \cfrac{d}{dx}\left[ -\int\limits_{\frac{\pi }{2}}^{x^{\frac{1}{2}}}~[cos(t^2)]dt \right]\\\\
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u=x^{\frac{1}{2}}\implies \cfrac{du}{dx}=\cfrac{1}{2\sqrt{x}}\\\\\\ \textit{and now, let's use the \underline{2nd fundamental theorem of calculus}}\\\\
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$\bf \displaystyle \cfrac{d}{dx}\left[ -\int\limits_{\frac{\pi }{2}}^{u}~[cos(t^2)]dt \right]\impliedby \cfrac{df}{dx}=\cfrac{df}{du}\cdot \cfrac{du}{dx}
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6 0

3 years ago

Convert the decimal 0.92¯¯¯ to a fraction.

topjm [15]

Answer:

23/25

Step-by-step explanation:

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8 0

3 years ago

(a) Make a scatter plot of the data in the table given to the right.<br> (b) Find a power function that models the data.<br> (c)

WITCHER [35]

Answer:

Step-by-step explanation:

The graph will move from right to left in ascending order

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3 years ago

This is a question from my sibling's math class.

Solnce55 [7]

Answer:

Step-by-step explanation:

You can solve using PEMDAS:

Parentheses

Exponents

Multiplication

Division

Addition

Subtraction

3(2+5)-5(3)+8=?

3(7)-5(3)+8=?

No exponents

3(7)-5(3)+8=?

21-15+8=?

No division

21-15+8=?

21-7=?

21-7=14

3(2+5)-5(3)+8=14

5 0

3 years ago

Read 2 more answers

3 10 in . = 7 8 mi . what is the unit rate

Sav [38]

Answer: (3/10) in = (7/8) mi

1 in = (7/8) mi ÷ (3/10)

= 7/8 * (10/3) = 70/24

1 in = (70/24) mi

It means every 1 inch on the map drawing represents (70/24) miles ≈ 2.917 miles in reality.

Hope this helps :)

Please mark me as Brainliest

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3 years ago