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3 years ago

Please help me fast

Mathematics

2 answers:

solong [7]3 years ago

8 0

Answer:

5/4 do the 2 lines then add1 then u get the anwswr

Step-by-step explanation:

Drupady [299]3 years ago

6 0

5/4 would be the answer.

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a banner is made of a sqiare and a semocircle. the square has side lengths of 26 inches. one side of the square is also the diam

tamaranim1 [39]

ARea = area of square + area of semicircle

= 26^2 + 0.5pi(13)^2

= 941.46 square inches to nearest hundredth

8 0

3 years ago

Read 2 more answers

Answers fast please. 1.) y=x−63x+2y=8 Use the substitution method. A.) (4, −2) B.) (14, 8) C.) (0, −6) D.) (3, −3) 2.) What is t

GrogVix [38]

QUESTION 1

The given system of equation is

$y=x-6...eqn1$

and

$3x+2y=8...eqn2$

Let us substitute equation (1) into equation (2) to get,

$3x+2(x-6)=8$

We expand the bracket to get,

$3x+2x-12=8$

We simplify to get.

$5x-12=8$

We group like terms to get

$5x=8+12$

$\Rightarrow 5x=20$

$\Rightarrow x=4$

We now substitute $x=4$ in to equation (1) to obtain,

$y=4-6=-2$

The correct answer is option A.

QUESTION 2

The given system of equations is

$y-x=9...eqn1$

and

$10+2x=-2y...eqn2$

We make y the subject in equation (2) to get,

$y=-x-5..eqn3$

We put equation (3) into equation (1) to obtain,

$-x-5-x=9$

We group like terms to get,

$-x-x=9+5$

This implies that,

$-2x=14$

We divide through by $-2$ to get,

$x=-7$

Hence the x-coordinate is $-7$

QUESTION 3

The given system is

$y=3x-1..eqn1$

and

$x-y=-9...eqn2$

We make $x$ the subject in equation (2) to get,

$x=y-9...eqn3$

We put equation (3) into equation (1) to obtain,

$y=3(y-9)-1$

We expand the bracket to get,

$y=3y-27-1$

Group like terms to get,

$y-3y=-27-1$

We simplify to get;

$-2y=-28$

This implies that,

$y=14$

Therefore the y-coordinate is 14.

4 0

4 years ago

Read 2 more answers

A. Find the measure of m<1 B. Find the measure of m<1 ;m<2; m<3

natita [175]

Answer:

A: m<1 = 79 degrees

B: m<1 = 61 degrees, m<2 = 151 degrees, m<3 = 12 degrees

Step-by-step explanation:

A: An exterior angle is equal to the sum of the two opposite interior angles. 27+52 in this case.

B: The sum of the measures of the interior angles in a triangle is 180 degrees.

Since we know the two angles in the right trinagle are 90 and 29 degrees, we add them and subract the sum from 180 which gives us 61 degrees.

Applying what we know from part A, 61 degrees+90 degrees = m<2.

And, since we know m<2 = 151 degrees, we add that and the 17 degrees to then subtract that sum from 180 to get the measure of angle 3 which is 12 degrees.

3 0

3 years ago

Beth’s annual salary is $20,000. She also earns a variable percent commission on her sales over $500. The percent commission var

slava [35]

Answer:

Step-by-step explanation:

Here, we want to select the option that best describes the commission earned;

In the question, we are told that the commission is a certain percentage variable on the amount of her sales;

Thus , mathematically to get the percentage commission, we simply need to have;

p(x) of f(x)

This simply refer to placing f(x) into p(x) which can be rewritten as ;

p o f(x)

The closest answer to this is the first option A

6 0

3 years ago

Water leaks out of a tank through a square hole with 2-inch sides. At time t (in seconds) the velocity of water flowing through

aliya0001 [1]

Answer:

V = ∫₀⁶⁰vdt/36 ft³

Step-by-step explanation:

The rate of change of the volume of the tank V is given by dV/dt. Since the volume of the tank is V = Ah where A = cross-sectional area of the square hole and h = height of tank.

Now dV/dt = dV/dh × dh/dt where dh/dt = v = velocity of water flowing through the tank = rate at which the height is changing.

dV/dt = dV/dh × dh/dt

dV/dt = dAh/dh × dh/dt

dV/dt = A × v

dV/dt = Av

Now the area of the dimension of the hole is 2 inches in feet is 2/12 feet. The area of the hole is thus A = (2/12)² = 1/6² = 1/36 ft².

So, dV/dt = v/36

dV = vdt/36

So, for the total volume lost in the first minute, we integrate t from t = 0 to t = 60 s.

V = ∫₀⁶⁰dV

V = ∫₀⁶⁰vdt/36 ft³

So, the definite integral that represents the total amount of water (in cubic feet) lost in the first minute is V = ∫₀⁶⁰vdt/36 ft³

5 0

3 years ago

Please help me fast ​

Please help me fast