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3 years ago

Provide an expression that is equivalent to -3(8+2) ?

Mathematics

1 answer:

aliina [53]3 years ago

5 0

Answer:

-3(8+2)=-30

Step-by-step explanation:

-3(8+2)

(8+2)=10

-3×10=-30

You might be interested in

What is the length of the altitude of the equilateral triangle below?

ElenaW [278]

Answer:

Step-by-step explanation:

the height a creates with half of the baseline (5) and a leg (10) a right-angled triangle, and we can use Pythagoras to calculate a.

c² = a² + b²

c being the Hypotenuse (the side opposite of the 90° angle, so in our case the 10 side).

10² = a² + 5²

100 = a² + 25

75 = a²

a = sqrt(75) = sqrt(3×25) = 5×sqrt(3)

5 0

2 years ago

F(x) = x + 2<br> g(x) = x - 4<br> (f9)(x) =

san4es73 [151]

Answer:

(fºg)(x) = x -2

Step-by-step explanation:

f(x) = x + 2

g(x) = x - 4

(fºg)(x) = ( x - 4) + 2

(fºg)(x) = x -2

3 0

3 years ago

Classify the following polynomial function, −3x(x2−4)(2x2+5)based on degree and number of terms.

Free_Kalibri [48]

Answer:

Quintic Trinomial (2nd option)

Step-by-step explanation:

We know that this is a quintic polynomial because the degrees add up to 5. If we expand the polynomial, we have $-3x(x^2-4)(2x^2+5)=(-3x^3-12x)(2x^2+5)=-6x^5-45x^3-24x^3-60x=-6x^5-69x^3-60x$

So, there are 3 terms, which is a trinomial.

5 0

2 years ago

Kathy Parker's employer pays 65% of the total cost of her $5,489 health insurance premium. What is her biweekly deduction for th

zzz [600]

Answer:

$73.89

Step-by-step explanation:

We have been given that Kathy Parker's employer pays 65% of the total cost of her $5,489 health insurance premium.

This means Kathy pays 35% of her health insurance premium.

Let us find 35% of $5489.

$\text{Amount of health insurance premium paid by Cathy per year}=\frac{35}{100}\times\$5489$

$\text{Amount of health insurance premium paid by Cathy per year}=0.35\times\$5489$

$\text{Amount of health insurance premium paid by Cathy per year}=\$1921.15$

As we are asked to find Cathy's biweekly deduction for the insurance we will divide amount of premium paid by Cathy by 26 as biweekly is paid 26 times per year.

$\text{Cathy's biweekly deduction}=\frac{\$1921.15}{26}$

$\text{Cathy's biweekly deduction}=\$73.89$

Therefore, Cathy's biweekly deduction for the insurance is $73.89.

8 0

3 years ago

PLEASE HELP ME!! ASAP!!

Alexus [3.1K]

to calculate y intercept we need to put x = 0 in equation.

3x + 2y = 14

3×0 + 2y = 14

y = 14/2 = 7

so point is

(0, 7)

option B

3 0

3 years ago