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marusya05 [52]
2 years ago
8

Solve for x. A. 5 B.7 OC. 6 OD. 8 3 X 5 4

Mathematics
1 answer:
spayn [35]2 years ago
7 0

Answer:

6

Step-by-step explanation:

5(5+3)=4(x+4) \\ \\ 40=4(x+4) \\ \\ 10=x+4 \\ \\ x=6

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Consider the function f(x) = x² – 3x – 4 and complete parts (a) through (C). (a) Find f(a+h); f(a+h)-f(a) (b) Find (c) Find the
Artist 52 [7]

Answer:

(a)

f(a+h)=a^{2} +2ah+h^{2} -3a-3h-4

(b)

f(a+h)-f(a)=2ah+h^{2} -3h

(c)

\frac{df(a+h)}{dx} \left \{ { \atop {a=7}} \right. =2h+11

Step-by-step explanation:

(a)

Simply evaluate (a+h) in the function:

f(a+h)=(a+h)^{2} -3(a+h)-4=a^{2} +2ah+h^{2} -3a-3h-4

(b)

Evaluate (a) in the function:

f(a)=a^{2} -3a-4

Using the previous answers lets calculate f(a+h)-f(a)

f(a+h)-f(a)=a^{2} +2ah+h^{2} -3a-3h-4-(a^{2} -3a-4)=2ah+h^{2} -3h

(c) To find the rate of change of f(a+1) when a=7 we need to calculate its derivate at that point:

\frac{df(a+h)}{dx} \left \{ { \atop {a=7}} \right. =2a+2h-3=2(7)+2h-3=2h+14-3=2h+11

7 0
3 years ago
:) help yuh yuh PLS HELP
pishuonlain [190]

Answer:

first box=\sqrt{75} second box= \sqrt{73}

Step-by-step explanation:

The square root of 74 is roughly between the suareoots of 75 and 73.

Have a fantastic-o day friends! Have a great life and don't waste time doing nothing.

7 0
2 years ago
Read 2 more answers
Which statement represents the biconditional statement of the conditional statements?
riadik2000 [5.3K]

The measures of two angles have a sum of 90º if and only if the angles are complements.

if the angles are complementary they have to equal 90 otherwise they are not complementary

3 0
3 years ago
Classify the following triangle
larisa86 [58]

Answer:

A. Right Triangle

D. Isosceles

Step-by-step explanation:

Well, since it has a square at the bottom of the triangle, it means it's a right triangle, because it has a 90 degree angle.

It is also an isosceles triangle, because two of the sides are of equal length.

Hope this helped!

:)

4 0
3 years ago
There are 7 books on the floor. The number of books on the shelf is 2 more than 3 times a number of books on the floor. How many
Radda [10]

If there are 7 books on the floor, 7 x 3 is 21. Plus two extra books, 21 + 2 = 23. There are 23 books on the bookshelf.

8 0
3 years ago
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