Multiply (8z-3)(2z+5)

9514 1404 393

Answer:

  583.4 cm³

Step-by-step explanation:

We have the base dimensions, so enough information to find its area:

  A = s²

  A = (10 cm)² = 100 cm²

__

The height of the triangle is found by solving triangle AMV for the distance MV. That is found from the trig relation ...

  Tan = Opposite/Adjacent

  tan(68°) = MV/AM

The length of AM is half the diagonal of the square base, so is (10√2)/2 = 5√2. The length of MV is ...

  MV = AM·tan(68°) = 5√2·tan(68°) ≈ 17.50

So, the volume of the pyramid is ...

  V = (1/3)Bh

  V = (1/3)(100 cm²)(17.50 cm) ≈ 583.4 cm³ . . . . volume of the pyramid

the answer is between 11 and 12

Answer:

ŷ = bX + a

Step-by-step explanation:

Answer:

The perimeter of the figure is approximately 42.85.

Step-by-step explanation:

Based on the given values, you already know that two of the sides of the shape are 12 units long. Since the half-circle above the rectangle is the same size as the gap in the rectangle - you know this because both of the half-circle's diameter are 6 units long - so you can add 24 units to the perimeter of a circle with a diameter of 6. The diameter of the circle is [tex]6\pi[/tex], or approximately 18.85, so the perimeter of the whole figure is approximately 42.85.

Answer:

The second deal is better. It is $2.042 per gallon

Step-by-step explanation:

$11/5 and 51.05/25 are the deals.

Let's multiply the first deal by 5/5.

That is $55 per 25 gallons and the other deal is $51.05 per 25 gallons.

So the second deal is better.

Now lets divide 51.05 by 25 to find out how much dollars per gallon

51.05 / 25 = 2.042, so it is $2.042 per gallon.

Answer:

Tanner

Step-by-step explanation:

6/8 = .75 tanner

2/5 = .4 heather

.75 > .4

Answer:

21 = -10m - 3

Add 3 to both sides:

24 = -10m

Divide by -10 on both sides:

-2.4  = m

Answer:

m = -2.4

Step-by-step explanation:

let me know if you need explanation

Answer:

d < -7

Step-by-step explanation:

-38d - 57 > -19d + 76

Add 19d to both sides

-19d - 57 > 76

Add 57 to both sides

-19d > 133

Divide both sides by -19

(when multiplying or dividing by a negative the inequality is reversed)

d < -7

Answer:

d < -7

Step-by-step explanation:

-38d - 57 > -19d +76

Add 19d and 57 to both sides

-19d > 133

Divide both sides by -19 (dividing by negative flips the inequality sign)

d < -7

Answer:

10000 metres

Step-by-step explanation:

You calculate by multiplying the number of metres in the ratio by 10 centimetres.

Your answer should come out to 10000 (10:10000)

Answer:

c=10

Step-by-step explanation:

c = 18m - 8

Let m=1

c = 18*1 - 8

C = 18-8

c = 10

Answer:

This is the Fibonacci Sequence. The next number is found by adding up the two numbers before it. Therefore the next number is (13+8) 21.

Step-by-step explanation:

Answer:

Part A

The motion of an elevator in a building is mechanically controlled by electrical powered devices and therefore, the motion of an elevator between start and stop is uniform motion without acceleration and therefore, a person in a moving elevator will not experience a force, therefore a blindfolded person will believe that the elevator is not moving at all

Part B

Yes the person can tell when the elevator begins or stops

When the elevator begins moving, the velocity increases from zero at a rate and the blindfolded person will be able to sense the ground moving further lower under their feet making them feel lighter

Similarly, when the elevator slows down to stop, the initial downward velocity of the elevator is steadily reduced as the elevator decelerates. The blindfolded person will be able to sense the slowing down (braking) of the elevator experiencing an increased upward force from the floor of the elevator, with the feeling of slightly increased weight

Step-by-step explanation:

Answer:

∠SQR = 1/2 m ∠SR = 1/2 x 86 = 43°

Answer:

Quadratic

Step-by-step explanation:

Not adding or multiplying

Answer:

LH: 5 x 7 = 35 m²

LW: 5 x 4 = 20 m²

WH: 4 x 7 = 28 m²

Add and Double: 35 + 20 + 28 = 83 m², 83 x 2 = 166 m²

Surface Area: 166 m²

Answer:

Dead ends :)

Step-by-step explanation:

Answer:

well... this normal addition

Step-by-step explanation:

9+8=17

9+1=10

5+4=9

5+2=7

3+4=7

3+1=4

Answer:

Linear and decreasing

Step-by-step explanation:

Answer: 38

Solution: An isosceles triangle has two equal sides: 3x - 5 and 19-x.; 3x - 5 = 19 - x; 4x = 24; x = 6

Let's check it out: 3(6) - 5 = 13; 19 - (6) = 13; 2(6) = 12

Two equal sides are 13 and base 12

Perimeter is 13 + 13 + 12 = 38 units

Answer is: 38

The perimeter of the given isosceles triangle is 38 cm.

The perimeter of an isosceles triangle refers to the addition of all the three sides of the triangle. Since the base angles of an isosceles triangle have two angles and two sides equal;

We can say that the perimeter of an isosceles triangle is:

P = 2a + b

where;

3x - 5 =  19 - x

3x + x = 19 + 5

4x = 24

x = 24/4

x = 6

The perimeter of the isosceles triangle is:

= 3x - 5 + 19 - x + 2x

= 3(6) - 5 + 19 - 6 + 2(6)

= 18 + 8 + 12

= 38 cm

Learn more about the perimeter of an isosceles triangle here:

https://brainly.com/question/11296804

Answer:

y = 12

Step-by-step explanation:

The segments are equal in length, SR = TR, so set up an equation:

[tex]\frac{y^2}{12}=y[/tex]

Multiply by 12.

[tex]y^2=12y\\y^2-12y=0[/tex]

Factor out the y on the left side.

[tex]y(y-12)=0[/tex]

There are two solutions:  y = 0 and y = 12.  The y = 0 solution makes no sence (segment SR can't have a length of 0).  The other solution, y = 12, works just fine.

Answer:

$55.42

Step-by-step explanation:

Price of supplies = 100%

Percentage of tax = 8.25%

Total percentage = 108.25%

Amount allowed to spend = $60

108.25% = 60

60 / 108.25 = .55427

0.55427x100 = 55.427

Round down

$55.42

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

Answer:

9x^4=6,561x

6x^2=36x

6561x+36x=6597x

Step-by-step explanation:

9x to the 4th power is just 9x9=81x9 and so on and the same goes for 6 then you just add them. Not Sure if this is the way you needed but feel free to ask anything.

Answer:

Could you mark me brainlleist? Anyways the answer is [tex]3x^{2} \\[/tex]([tex]3x^{2}[/tex] + 2).

Step-by-step explanation:

Answer:

53.87 because 4 cant round the 6

Step-by-step explanation:

Answer:

53.87

Step-by-step explanation:

4 cannot round the 6

Answer:

the answer for this equation is c. -2

Answer:

81

Step-by-step explanation:

Substitute 3 in place of y

7 * 3 * 3 - 16 + 5 * 3 *2 + (16 / 4)

63 - 16 + 30 + 4

Answer:

210

Step-by-step explanation:

Multiply by the total amount by the decimal equivalent of 70% (0.7) to get your answer.