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LekaFEV [45]
3 years ago
8

I just need help with 3-6 (explain answers please)

Mathematics
1 answer:
antiseptic1488 [7]3 years ago
8 0

Answer:

3-6=3

Step-by-step explanation:

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Find the value of x.
Alisiya [41]

\huge\bold{To\:find:}

✎ The value of x.

\large\mathfrak{{\pmb{\underline{\orange{Solution}}{\orange{:}}}}}

\sf\purple{The\:value\:of\:x\:is\:10°. }

\large\mathfrak{{\pmb{\underline{\red{Step-by-step\:explanation}}{\orange{:}}}}}

Since it is right angle,

Sum \: of \: angles \:  =  90° \\ ⇢ 2x °+ 7x°  =90 °  \\ ⇢9x° = 90° \\ ⇢x° =  \frac{90°}{9}  \\ ⇢x° = 10°

\sf\blue{Therefore,\:the\:value\:of\:x\:is\:10°.}

\huge\bold{To\:verify :}

2x° + 7x°  = 90°  \\ ➡ \: 2 \times 10°  +7 \times 10°  = 90°  \\ ➡ \: 20°  + 70°  = 90°  \\ ➡ \: 90°  = 90°  \\  ➡ \: L.H.S.=R. H. S

Hence verified.

\circ \: \: { \underline{ \boxed{ \sf{ \color{green}{Happy\:learning.ඞ}}}}}∘

6 0
3 years ago
Find the derivative with respect to x of the integral from 2 to x^3 of ln(x^2)dx
strojnjashka [21]

The derivative follows from the fundamental theorem of calculus:

\displaystyle\frac{\mathrm d}{\mathrm dx}\int_c^{g(x)}f(t)\,\mathrm dt=f(g(x))\dfrac{\mathrm dg}{\mathrm dx}

where c is any constant in the domain of f.

We have

g(x)=x^3\implies\dfrac{\mathrm dg}{\mathrm dx}=3x^2

so

\displaystyle\frac{\mathrm d}{\mathrm dx}\int_2^{x^3}\ln(t^2)\,\mathrm dt=3x^2\ln((x^3)^2)=18x^2\ln x

(applying the property \ln a^b=b\ln a)

5 0
3 years ago
PLEASE HELP WILL GIVE BRAINLIEST
garri49 [273]

Answer:

1.3

Step-by-step explanation:

4 divided by 3 is 1.33333 and so on

3 0
3 years ago
By factoring, identify the zeros of the quadratic function f (x) = x²-9x-22
vovikov84 [41]

Answer:

x= -2, x= +11

Step-by-step explanation:

I hope this is right!

To factorise, we need two numbers that add to make -9 and multiply together to make -22.

2 - 11 works, so we put it in the brackets in this order.

(x + 2) (x - 11)

so x + 2 = 0 and x - 11 =0

but we could also simplify this to say that x could be either -2 or + 11.

I hope this helps.

Have a lovely day.

7 0
2 years ago
Which of the following are solutions to the inequality
kirill [66]

Answer:

(-2,1)

Step-by-step explanation:

5 0
3 years ago
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