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3 years ago

13

Can someone help me please Brainiest answer to whoever is first

1 answer:

KiRa [710]3 years ago

5 0

Answer:

Step-by-step explanation:

Surface area of small box = 2(4×10) + 2(4×14) + 2(10×14)

= 2(40+56+140)

= 472 cm²

Surface area of large box = 2(4×20) + 2(4×14) + 2(20×14)

= 2(80+56+280)

= 832 cm²

832 - 472 = 360 cm²

Answer: C

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4x2 + 4x - 1, evaluate and fully simplify each of the - For the function f(0) following f(s + h) f(x + h) - f(5) h 10

Andrew [12]

Given the function f(x);

$f(x)=-4x^2+4x-1$

Evaluating the function f(x+h);

$\begin{gathered} f(x+h)=-4(x+h)^2+4(x+h)-1 \\ f(x+h)=-4(x^2+2xh+h^2)^{}+4(x+h)-1 \\ f(x+h)=-4x^2-4h^2-8xh^{}+4x+4h-1 \end{gathered}$

So;

$f(x+h)=-4x^2-4h^2-8xh^{}+4x+4h-1$

Evaluating the second function;

$\begin{gathered} \frac{f(x+h)-f(x)}{h}=\frac{-4x^2-4h^2-8xh^{}+4x+4h-1-(-4x^2+4x-1)}{h} \\ \frac{f(x+h)-f(x)}{h}=\frac{-4x^2-4h^2-8xh^{}+4x+4h-1+4x^2-4x+1}{h} \\ \frac{f(x+h)-f(x)}{h}=\frac{-4x^2+4x^2-4h^2-8xh^{}+4x-4x+4h-1+1}{h} \\ \frac{f(x+h)-f(x)}{h}=\frac{-4h^2-8xh^{}+4h}{h} \end{gathered}$

simplifying further;

$\begin{gathered} \frac{f(x+h)-f(x)}{h}=\frac{-4h^2-8xh^{}+4h}{h}=-4h-8x+4 \\ \frac{f(x+h)-f(x)}{h}=-4h-8x+4 \end{gathered}$

Therefore, we have;

$undefined$

7 0

1 year ago

Need urgent help in mathematics!! Will mark brainliest!!!!

masha68 [24]

The answer is the third option

5 0

3 years ago

Read 2 more answers

I’m so confused, please help.

grandymaker [24]

i believe the answer is B

4 0

4 years ago

7h^9 c^6 / 21^9 c^4 dis hard

almond37 [142]

Step-by-step explanation:

1) Evaluate the exponent

$\frac{7h^{9} }{c^{6} }$ × $c^{4}$

$\frac{7h^{2} c^{6} }{794280046581}$ × $c^{4}$

2) Cancel terms that are in both the numerator and denominator

$\frac{7h^{9}c^{6} }{794280046581}$ × $c^{4}$

$\frac{h^{9}c^{6} }{113468578083}$ × $c^{4}$

3) Combine multiplied terms into a single fraction

$\frac{h^{9}c^{6} }{113468578083}$ × $c^{4}$

$\frac{h^{9}c^{6}c^{4} }{113468578083}$

4) Combine exponents

$\frac{h^{9} c^{6} c^{4} }{113468578083}$

$\frac{h^{9} c^{6}c^{4} }{113468578083}$

Result ║ $\frac{h^{9} c^{6}c^{4} }{113468578083}$

6 0

3 years ago

Which set of ordered pairs has point symmetry with respect to the origin (0, 0)? (-12, 5), (-5, 12) (-12, 5), (12, -5) (-12, 5),

miskamm [114]

Answer:

(-12, 5), (12, -5)

Step-by-step explanation:

Reflection across the origin is the transformation ...

(x, y) ⇒ (-x, -y)

Look for coordinates that are the opposites of their counterparts. You will find the appropriate answer choice is ...

(-12, 5), (12, -5)

7 0

4 years ago

Read 2 more answers