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3 years ago

14

Which expression shows a sum of three terms? 3x 3 + x x3 x + 3 + x

2 answers:

hammer [34]3 years ago

4 0

The sum of 3 terms..." sum " means add

x + 3 + x <==

snow_lady [41]3 years ago

3 0

The correct answer is: [D]: " x + 3 + x" .
___________________________________________________
The three (3) terms are: "x" , "3" , and "x" .
___________________________________________________
Answer choice [A]: "3x" ; only has one term.
___________________________________________________
Answer choice [B]: "x + 3 " ; only has two terms: "x" and "3" .
___________________________________________________
Answer choice [C]: "x³ " ; only has one term.
___________________________________________________

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A trapezoid has an area of 36 square feet. If its height is 8, and one base is 4, what is the length of the other base?

Georgia [21]

Answer:

5

Step-by-step explanation:

A=a+b/2 x h

4 = a

5 = b

8 = h

4 + 5 / 2 = 4.5

4.5 x 8 = 36

So the other base length is 5

5 0

2 years ago

Find the value of expression - 17x-19xpwer4 - 21x power 2,when x=3<br><br>

Marrrta [24]

Answer:

$-17x - 19x^4 - 21x^2 = -1779$ when $x = 3$

Step-by-step explanation:

Given

$-17x - 19x^4 - 21x^2$

$x = 3$

Required

Solve

Substitute 3 for x in $-17x - 19x^4 - 21x^2$

$-17x - 19x^4 - 21x^2 = -17*3 - 19*3^4 - 21*3^2$

Evaluate all exponents

$-17x - 19x^4 - 21x^2 = -17*3 - 19*81 - 21*9$

$-17x - 19x^4 - 21x^2 = -51 - 1539- 189$

$-17x - 19x^4 - 21x^2 = -1779$

7 0

3 years ago

A 2-column table has 4 rows. The first column is labeled x with entries negative 1, 0, 1, 2. The second column is labeled f (x)

telo118 [61]

The decay factor of the exponential function given in the table is of $\frac{2}{3}$ .

<h3>What is an exponential function?</h3>

A decaying exponential function is modeled by:

$A(t) = A(0)(1 - r)^t$

In which:

A(0) is the initial value.

r is the decay rate, as a decimal.

In this problem, we have that when x increases by 1, y decreases by a factor of 3, hence the decay rate r is found as follows:

$1 - r = \frac{1}{3}$

$r = 1 - \frac{1}{3}$

$r = \frac{2}{3}$

More can be learned about exponential functions at brainly.com/question/25537936

#SPJ1

6 0

2 years ago

I NEED HELP PLEASEEEEEEEEEEEEEEEEEEEEEEEEE

ser-zykov [4K]

Answer:

58 square feet

Step-by-step explanation:

The room is already broken down into two smaller rectangles.

The smaller of the two measures 4 ft by 2 ft. $A=lw$ , so substitute 4 for $l$ and 2 for $w$ .

$A$ (smaller rectangle) $=(4)(2)$ , or $(4*2)$ .

$A$ (smaller rectangle) $=8$

The larger measures 10 ft by 5 ft, so using the same method, multiply $l$ times $w$ .

$A$ (larger rectangle) $=(10)(5)$ , or $(10*5)$ .

$A$ (larger rectangle) $=50$

Add the two rectangles' areas together to find the total area of the room.

8 + 50 = 58

8 0

3 years ago

Vertex of y=5x^2-10x+1

kirill [66]

Convert to vertex form:-

y = 5(x^2 - 2x) + 1

y = 5[(x - 1)^2 - 1] + 1

y = 5(x - 1)^2 - 4

vertex is (1, -4)

4 0

3 years ago