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2 years ago

Expand and simplify the following 1 2(4x - 3) + 5x + 4

Mathematics

1 answer:

Flura [38]2 years ago

7 0

The answer to this equation is 13x-2

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4/7 divided by 7/2?????

11Alexandr11 [23.1K]

Answer:

8/49

Step-by-step explanation:

4/7 ÷7/2

Copy dot flip

4/7 * 2/7

Multiply the numerators

4*2 = 8

Multiply the denominators

7*7= 49

numerator over denominator

8/49

8 0

2 years ago

Read 2 more answers

Find the LCD to each the fractions and then add them together 1/4 + 2/5 + 1/3

jekas [21]

The LCD of these fractions is 60!

The sum of these fractions is $\frac{59}{60}$ !

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6 0

2 years ago

Read 2 more answers

I do not know how to do this.

Nonamiya [84]

Answer:

Step-by-step explanation:

(a) Option B cost less at 120 miles driven

The cost difference at 120 miles between option A and option B is $15

(b) Option A and B cost the same at driving 60 miles.

Option B would cost more if you drive less than 60 miles.

6 0

1 year ago

What is the value of the expression as a mixed number 15/8 + 1/4

Oksanka [162]

15/8 + 1/4

15/8 + 2/8

= (15 + 2) /8

= 17/8

= 2 1/8. 2 whole number 1/8.

5 0

2 years ago

Scientists modeled the intensity of the sun, I, as a function of the number of hours since 6:00 a.m., h, using the

MAVERICK [17]

The functions are illustrations of composite functions.

<em>The soil temperature at 2:00pm is 67</em>

The given parameters are:

$\mathbf{I(h) =\frac{12h - h^2}{36}}$ ---- the function for sun intensity

$\mathbf{T(I) =\sqrt{5000I}}$ -- the function for temperature

At 2:00pm, the value of h (number of hours) is:

$\mathbf{h = 2:00pm - 6:00am}$

$\mathbf{h = 8}$

Substitute 8 for h in $\mathbf{I(h) =\frac{12h - h^2}{36}}$ , to calculate the sun intensity

$\mathbf{I(8) =\frac{12 \times 8 - 8^2}{36}}$

$\mathbf{I(8) =\frac{32}{36}}$

$\mathbf{I(8) =\frac{8}{9}}$

Substitute 8/9 for I in $\mathbf{T(I) =\sqrt{5000I}}$ , to calculate the temperature of the soil

$\mathbf{T(8/9) =\sqrt{5000 \times 8/9}}$

$\mathbf{T(8/9) =\sqrt{4444.44}}$

$\mathbf{T(8/9) =66.67}$

Approximate

$\mathbf{T(8/9) =67}$

Hence, the soil temperature at 2:00pm is 67

Read more about composite functions at:

brainly.com/question/20379727

5 0

1 year ago