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3 years ago

(50 Points & Brainliest)

Mathematics

2 answers:

RUDIKE [14]3 years ago

8 0

Answer:

16x-8

Step-by-step explanation:

We need to calculate the total time. We are given two functions that when summed up will give you total time.

$(f + g)(x) = 5x - 7 + 11x - 1 \\ = 16x - 8$

astraxan [27]3 years ago

5 0

Answer:

(f + g)(x) = 16x − 8

Step-by-step explanation:

(f + g)(x) = f(x) + g(x)

= 5x - 7 + 11x - 1

= 16x - 9

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F(x)=-9x^2-2x and g(x)=-3x^2+6x-9, find (f-g)(x) and (f-g)(-4)

Alona [7]

Answer:

(f - g)(x)= - 6 {x}^{2} - 8x + 9

(f - g)(-4!)= - 55

Step-by-step explanation:

$f(x) = - 9 {x}^{2} - 2x, \: \: g(x) = - 3 {x}^{2} + 6x - 9 \\ (f - g)(x) = f(x) - g(x) \\ = - 9 {x}^{2} - 2x - (- 3 {x}^{2} + 6x - 9) \\ = - 9 {x}^{2} - 2x + 3 {x}^{2} - 6x + 9 \\ \purple{ \boxed{ \bold{(f - g)(x)= - 6 {x}^{2} - 8x + 9}}} \\ (f - g)( - 4)= - 6 {( -4 )}^{2} - 8( - 4) + 9 \\ = - 6 \times 16 + 32 + 9 \\ = - 96 + 41 \\ \red{ \boxed{ \bold{(f - g)( - 4)= - 55}}}$

6 0

3 years ago

Help? pls? (10 points) (image down below to make it easier to understand.)

dusya [7]

This is middle school??? AinT no way

7 0

2 years ago

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If m angle B=m angle D=41, find m angle C so that quadrilateral ABCD is a parallelogram

Charra [1.4K]

ANSWER

139°

EXPLANATION

One of the interior angle properties of a parallelogram is that adjacent interior angles are supplementary.

This means that, the adjacent interior angles add up to 180°.

$m \angle \: B = m \angle \: D = 41$

Then

$m \angle \: C + m \angle \: D = 180 \degree$

$m \angle \: B + m \angle \:C= 180 \degree$

$\implies41 \degree + m \angle \:C= 180 \degree$

$\implies m\angle \:C= 180 \degree - 41 \degree = 139 \degree$

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3 years ago

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Goryan [66]

Answer:

A = E and B = D

Step-by-step explanation:

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3 years ago

Does 2 1/4-6/7=1 3/4

dimulka [17.4K]

Answer: No, it would be 2/5.

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