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3 years ago

H(x) = x^3 - 2x g(x) = 3x + 4 Find (h+g)(4)

Mathematics

1 answer:

pashok25 [27]3 years ago

8 0

9514 1404 393

Answer:

Step-by-step explanation:

h(4) = 4^3 -2·4 = 64 -8 = 56

g(4) = 3·4 +4 = 16

Then the sum is ...

(h+g)(4) = h(4) + g(4) = 56 +16

(h+g)(4) = 72

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What is 8 3/5 + 4 4/5?

dangina [55]

Answer:

67/5 = 13 2/5

Step-by-step explanation:

Step 1: Define/explain.

An easier way to solve this is by changing the mixed fractions to improper fractions.

To do this, multiply the whole number by the denominator, then add the product to the numerator; the denominator remains the same.

Mixed fraction - a fraction with a whole number.

Improper fraction - a fraction with a numerator larger than the denominator.

Step 2: Solve.

$8\frac{3}{5} =\frac{43}{5}$

$4\frac{4}{5} =\frac{24}{5}$

From here, add as usual.

$\frac{43}{5} +\frac{24}{5} =\frac{67}{5}$

Step 3: Conclude.

You can change the improper fraction to a mixed fraction if you'd like.

To do this, divide the numerator by the denominator.

The amount of times the numerator evenly goes into the denominator is the whole number.

The amount of remaining numbers in the denominator.

The numerator remains the same.

$\frac{67}{5} =13\frac{2}{5}$

I, therefore, believe the answer to this is 13 2/5.

5 0

3 years ago

I need help with math ...x+180+1.5x+3x=455

kirill115 [55]

5.5x+180=455
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3 years ago

Which statement best explains whether △JKL is congruent to △MNP?

Alchen [17]

Rotation of triangle JKL by 180 degrees will result in a triangle with corresponding vertices of (2, 4), (3, 2) and (-1, 2).

Then translating the resulting triangle 2 units up will result in a triangle with corresponding vertices (4, -2), (2, -3) and (2, 1) which is the same triangle as the given triangle MNP.

Therefore, the statement that best explains whether △JKL is congruent to △MNP is △JKL is congruent to △MNP because △JKL can be mapped to △MNP by a rotation of 180° about the origin followed by a translation 2 units up.

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3 years ago

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3 years ago

The figure shown is a semicircle. Find its area. Round your solution to 2 decimal places.

Leona [35]

Answer:

12.5 pie , 39.25 using pie=3.14, and 39.28 to be exact

Step-by-step explanation:

BTW n=pie

10in= Diameter

5in=Radius

Area=n5^2

= 25n/2

=12.5n

12.5 times 3.14= 39.25

22/7 times 12.5= 39.2857143

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3 years ago