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3 years ago

What is the value of the expression when a = 5 and b = 2?

Mathematics

2 answers:

FromTheMoon [43]3 years ago

8 0

The answer is c because 2 *5 is 10+2 is 12-3 is 9

kifflom [539]3 years ago

5 0

HEY!!!

Substituting values we get,
10+2-3

So the answer to your question is Ç.9

Hope it helps you.

:)

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Find the GCF of the terms of the polynomial. 33x^3 + 18^6

Ronch [10]

$33x^3=\boxed{3}\cdot11\cdot\boxed{x}\cdot\boxed{x}\cdot\boxed{x}\\\\18x^6=2\cdot\boxed{3}\cdot3\cdot\boxed{x}\cdot\boxed{x}\cdot\boxed{x}\cdot x\cdot x\cdot x\\\\GCF(33x^3,\ 18x^6)=\boxed{3}\cdot\boxed{x}\cdot\boxed{x}\cdot\boxed{x}=3x^3$

5 0

4 years ago

Manny buys a new grill that costs $375. The grill is discounted 22% and sales tax is 6.5%. How much does Manny pay for the grill

Svetllana [295]

Answer:

$310.05

Step-by-step explanation:

Method 1: Find the amount of 22% discount and subtract from original price, and find the amount of 6% tax and add to discounted price.

Original price: $375

Discount of 22%

22% of $375 = 0.22 × $375 = $82.50

Price after discount (but before tax): $375 - $82.50 = $292.50

Sales tax of 6%

6% of $292.50 = 0.06 × $292.50 = $17.55

Price after discount and tax: $292.50 + $17.55 = $310.05

Method 2: Add and subtract the discount percent and the tax percent first, then multiply.

Original price: $375

The discount is 22%.

The original price is 100%.

Subtract 22% from 100%: 100% - 22% = 78%

The discounted price is 78% of the original price.

Once you have the discounted price, tax is 6%.

The new discounted price is 100%. Add 6% to get 106%.

The price with tax is 106% of the discounted price.

106% of 78% of $375 = 1.06 × 0.78 × $375 = $310.05

Answer: $310.05

3 0

2 years ago

I'm using equations Looking for the solution to this equation 6d=108 what does d=

Alenkinab [10]

6d=108
Divide 6 on both sides
Final Answer: d=18

7 0

3 years ago

The focus of a parabola is (-3,-5) The directrix of the parabola is y=2

cricket20 [7]

Check the picture below.

so the focus point is there, and the directrix is above it, meaning is a vertical parabola and is opening downwards, since the parabola opens up towards the focus.

now, the vertex is half-way between those two guys, at a "p" distance from either one, if we move over the y-axis from -5 to +2, we have 7 units, half-way is 3.5 units, and that puts us at -1.5 or -1½, as you see in the picture, so the vertex is then at (-3 , -1½).

so the distance from the vertex to the focus point is then 3½ units, however since the parabola is opening downwards, "p" is negative, thus "p = 3½".

$\bf \textit{parabola vertex form with focus point distance} \\\\ \begin{array}{llll} 4p(x- h)=(y- k)^2 \\\\ \stackrel{\textit{using this one}}{4p(y- k)=(x- h)^2} \end{array} \qquad \begin{array}{llll} vertex\ ( h, k)\\\\ p=\textit{distance from vertex to }\\ \qquad \textit{ focus or directrix} \end{array} \\\\[-0.35em] \rule{34em}{0.25pt}$

$\bf \begin{cases} h=-3\\ k=-\frac{3}{2}\\[0.7em] p=-\frac{7}{2} \end{cases}\implies 4\left( -\cfrac{7}{2} \right)\left[ y-\left(-\cfrac{3}{2} \right) \right]=\left[ x-\left( -3 \right) \right]^2 \\\\\\ -14\left( y+\cfrac{3}{2} \right)=(x+3)^2\implies y+\cfrac{3}{2} =-\cfrac{(x+3)^2}{14} \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ ~\hfill y=-\cfrac{1}{14}(x+3)^2-\cfrac{3}{2}~\hfill$

4 0

3 years ago

A boat is crossing the river action. To the nearest 10th of a degree, find the angle at which the boat must head upriver in orde

Oduvanchick [21]

This is because each number of x is being multiplied by 100

8 0

3 years ago