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zhenek [66]
3 years ago
15

Can someone help me with this

Mathematics
2 answers:
xeze [42]3 years ago
6 0
2^2 + 4 x 2 + 7 x 6
evaluate the power
4 + 4 x 2 + 7 x 6
____________
5-2^3
multiply
4+8 +7x6
_______
5-2^3
multiply
4 + 8 + 42
_______
5-2^3
evaluate the power
4+8+42
______
5-8
find the sun of the positive numbers
54
___
5-8
find the difference
54
__
-3

reduce

-18
AleksAgata [21]3 years ago
4 0
You have to plug in 2 for a and 6 for b.

(2)^2 + 4(2) + 7(6) 4 + 8 + 42 54
————————— = —————- = ——
5 - (2)^3 5 - 8 -3

The answer is -18.

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What is the sum of r + s, when r = –14.1 and s = 18.3?
Korolek [52]
The answer would be 4.2.
6 0
4 years ago
Read 2 more answers
Use the information given to enter an equation in standard form.
Greeley [361]

Answer:

y = -2x + 25

Step-by-step explanation:

A standard equation can be in slope-intercept form: y = mx + b

m is the slope, b is the y-intercept.

Plug in the given slope.

y = -2x + b

To find b, plug in the given point (9, 7).

7 = -2(9) + b

Multiply.

7 = -18 + b

Add 18 to both sides to find b.

25 = b

Plug this into your standard equation.

y = -2x + 25

Check by plugging in the given point again.

7 = -2(9) + 25

7 = -18 + 25

7 = 7

Your answer is correct!

Hope this helps!

3 0
3 years ago
A bicycle wheel with radius 26" rotates through an arc that measures 80°. What is the length of the arc of the tire that touched
Bad White [126]
\bf \textit{arc's length}\\\\
s=\cfrac{\theta \pi r}{180}\quad 
\begin{cases}
r=radius\\
\theta =angle~in\\
\qquad degrees\\
------\\
\theta = 80\\
r=26
\end{cases}\implies s=\cfrac{80\cdot \pi \cdot 26}{180}
8 0
3 years ago
HELP. John his a fish tank at home. The tank is rectangular in shape and has a volume of 192 cubic feet ifitis 6 long and 4 feet
Levart [38]

Answer:

B

Step-by-step explanation:

We need to find a answer that multiplies with 4 and 6 to 192.

4 x 6 x 9 doesn't equal 192     (It equals 216)

4 x 6 x 8 does equal 192

4 x 6 x 12 doesn't equal 192      (It equals 288)

4 x 6 x 48 doesn't equal 192      (It equals 1152)

8 0
3 years ago
Read 2 more answers
An account with an initial balance of $4,000.00 and a 3% interest rate has a balance of $4,121.66 at the end of one year. What i
Gekata [30.6K]

The effective annual yield is 3.04%

What is effective annual yield?

Effective annual yield is the rate of return that considers the frequency of compounding, in other words, the number of times in a year that interest on the balance is compounded.

The easiest way to determine the effective annual yield in this case is to compare the end of the year balance with the initial balance at the start of the year

effective annual yield=(ending balance/initial balance)-1

ending balance=$4,121.66

initial balance=$4000

effective annual yield=($4,121.66/$4000)-1

effective annual yield=3.04%

Another way to determine the effective annual yield is use the below formula which considers that interest rate is 3% compounded monthly, in other words, n, the frequency of compounding is 12

EAR=(1+r/n)^n-1

r=3%

n=12

EAR=(1+3%/12)^12-1

EAR=3.04%

Find out more on effective annual yield on :brainly.com/question/3125221

#SPJ1

6 0
2 years ago
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