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RSB [31]
3 years ago
6

If f(x) = x ² +1 and g(x) =3x+ 1,find [f(4)] ²

Mathematics
2 answers:
Marat540 [252]3 years ago
6 0

Answer:

289

Step-by-step explanation:

Evaluate f(4) by substituting x = 4 into f(x), that is

f(4) = 4² + 1 = 16 + 1 = 17, then

[f(4) ]² = 17² = 289

guajiro [1.7K]3 years ago
3 0

Answer:

289

Step-by-step explanation:

We don't need g at all for this.

We will need to know f(4) before continuing...

f(4) can be found by replacing x in f(x)=x^2+1 with 4:

f(4)=4^2+1

f(4)=16+1

f(4)=17

-------------------

Now let's find [f(4)]^2:

[f(4)]^2

[17]^2

17(17)

289

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Mikaela’s friends brought a big box of crackers to the movie theater. 53 crackers are
slamgirl [31]

Answer:

123 crackers

Step-by-step explanation:

If 1/3 of the box contains sesame seed crackers, then, 2/3 of the box contains whole wheat and cheese flavored crackers.

Total number of whole wheat and cheese flavored crackers = 53 + 29 = 82

Let x be the total number of crackers in the box, so we will have the equation

2/3 x= 82

x = 82 ÷ 2/3; we will get

X =82 x 3/2

X = 123 crackers

4 0
3 years ago
Janice drove 392 miles in 7 hours. What is the average number of miles she drove per<br> hour?
amm1812

Answer:

Step-by-step explanation:

Total Distance = 392 miles

Total Time = 7 hours

Average Miles / hour = 392 miles / 7 hours

Average Miles / hour = 56 miles per hour

5 0
3 years ago
Use distributive property to find 6×296​
levacccp [35]

Answer:

296 x 6 = 1776

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
Suppose that y varies directly with x<br> and y = 10 when x = 20. What is y<br> when x = 15?
tresset_1 [31]

Answer: y = 7.5

Step-by-step explanation:

Suppose that y varies directly with x

That is, y∝x

Convert y∝x to a full equation by introducing a constant k to the right hand side.

Therefore, y = kx

Given that y = 10 and x = 20

Substitute y and x in the equation above. We have;

10 = k(20)

10 = 20k

20k = 10

k = 10/20

k = 0.5

Since k = 0.5, the equation y = kx becomes y = 0.5x

Now, to find y if x = 15, substitute x in equation y = 0.5x

Therefore, y = 0.5(15)

y = 7.5

5 0
3 years ago
How many acres of land are in a rectanglar parcel 234' * 878'
uysha [10]
An acre is 43,560 ft² because the customary system hates you.

Let's find out how many square feet the parcel is so we can convert it into acres.

The area of a rectangle is its base times its height.

A = bh
A = 234 ft * 878 ft
A = 205,452 ft²

Divide by 43,560.

A ≈ <span>4.7165 acres. (round as needed)</span>
7 0
3 years ago
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