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2 years ago

Solve the following equation when a = 3 and b = 2. 5a^2 − 10b + 9b =

Mathematics

2 answers:

olga2289 [7]2 years ago

5 0

5(3)^2-10(2)+9(2)
15^2-20+18
225-20+18
=223

rusak2 [61]2 years ago

4 0

The answer for this problem is 43

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There were 350 members in the high school marching band last year. This year, the number of marching band members increased by 5

Rudiy27

Answer:

The percentage of the number of marching band members increased by 16% this year.

Step-by-step explanation:

$\frac{56}{350}$ x 100% = 16%

56 is 16% of 350

3 0

3 years ago

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The density of titanium is 4.51 g/cm^3

forsale [732]

The volume of titanium is 20.86 cubic inches

<em><u>Solution:</u></em>

The volume is given by formula:

$volume = \frac{mass}{density}$

From given,

Density of titanium = 4.51 $g/cm^3$

Mass = 3.4 lb

Let us convert the mass to grams

1 pound = 453.592 grams

Therefore, 3.4 pound is equal to:

$3.4 \text{ pound } = 3.4 \times 453.592 \text{ grams }\\\\3.4 \text{ pound } = 1542.2128\text{ grams }$

Now substitute the values into formula:

$volume = \frac{1542.2128}{4.51}\\\\volume = 341.95 cm^3$

Let us convert cubic centimeter to cubic inches

1 cubic centimeter = 0.0610237 cubic inches

Therefore,

$341.95\ cm^3 = 0.0610237 \times 341.95\ in^3 = 20.86\ in^3$

Thus volume of titanium is 20.86 cubic inches

6 0

3 years ago

Please help! The question and answer choices are attached.

alexandr1967 [171]

The answer is B The function shown on the graph has a smaller rate of change but a higher starting point

6 0

2 years ago

The answer is 3.8 and I CANT FIGURE IT OUT

Alex17521 [72]

3.8 is the answer you already figured it out

8 0

3 years ago

I need a Tutor and Help with this question

valkas [14]

Answer:

x=31

y=6

Step-by-step explanation:

2x+3y=80

x+y=37

solve by elimination:( multiply second equation by 2) to eliminate x

2x+3y=80

2x+2y=74

subtract the two equations:

2x+3y-(3x+2y)=80-74

2x+3y-3x-2y=6

y=6 (3 point basket)

substitute: x+y=37, x=37-6=31

x=31 (2 point shot)

4 0

2 years ago

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