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3 years ago

Evaluate the expression (-4)^2+12x2

Mathematics

1 answer:

Elza [17]3 years ago

7 0

Answer:

Step-by-step explanation:

step 1: (-4)^2=16

step2: 12X2=24

step3: 16+24+40

Ps: when you do a math that involves both addition and multiplication,

we should do multiplication and then addition

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Please help i'm stuck :,)

Ksju [112]

Answer:

14 minutes below or 6 minutes above

Step-by-step explanation:

Let's say Sophia's time was 10 minutes WORSE

4 minutes below average- 10 minutes= 14 minutes below average

Let's say Sophia's time was ten minutes BETTER

4 minutes below average + 10 minutes= 6 minutes above average.

Hope this helps!

5 0

3 years ago

Read 2 more answers

You wish to borrow $8000 for debt consolidation. The bank's interest rate for a personal loan is 7.2%. What is your monthly paym

Lisa [10]

<h3>The monthly payment is $242.44 for loan to paid off in 3 years.</h3>

Step-by-step explanation:

The amount borrowed = Principal = $8000

The rate of interest = 7.2%

Time (T) = 3 years

Now, Simple Interest = $\frac{P\times R \times T}{100}$

$\implies SI = \frac{8000 \times 7.2 \times 3}{100} = 1,728$

So, the total interest = $1728

Now, <u>Amount to be paid = Principal + Interest</u>

⇒ A = $8000 + $1728 = $8728

Also, 1 year = 12 months

⇒ 3 years = 3 x 12 months = 36 months

So, total amount to be paid in 36 months is $8728.

⇒The amount to be paid in 1 month is $(\frac{8728}{36} ) = 242.44$

Hence, the monthly payment is $242.44 if loan is to paid off in 3 years.

3 0

2 years ago

-5x +3y +6z=4<br> -3x + y + 5z=-5<br> -4x + 2y + z= 13

lozanna [386]

See the attached image for solution:

6 0

3 years ago

Read 2 more answers

A group of 5 friends ate lunch at a restaurant. The bill came to $42 and the friends agreed to split it equally. Which expressio

Gnom [1K]

Answer:

c would be the right and its the best answer

3 0

2 years ago

Point O is the center of the circle. What is the value of X? <br> Answer options: 24, 15, 27, 20

Tanya [424]

Answer: FIRST OPTION

Step-by-step explanation:

To solve this problem you must apply the Intersecting Secant-Tangent Theorem. By definition, when a secant line and a tangent lline and a secant segment are drawn to a circle from an exterior point:

$(Tangent\ line)^2=(Secant\ line)(External\ Secant\ line)$

The total measure of the secant shown is:

$18+Diameter$

If the radius is 7, then the diameter is:

$D=7*2=14$

Therefore:

$Secant\ line=18+14=32$

You also know that:

$External\ Secant\ line=18\\Tangent\ line=x$

Keeping the above on mind, you can substitute values and solve for x:

$x^{2}=32*18$

$x=\sqrt{576}\\x=24$

4 0

2 years ago