Lesson 10. 3 name two streets that appear to be parallel

Answer:

How do you want us to answer this?

Answer:

is there a graph because I don't see it

Answer:

610 in

Step-by-step explanation:

Answer:

356

Step-by-step explanation:

To answer this, find the area of each side, then add the values together.

Normally Surface Area = 2 (wl + hl + hw) but in this case, the easiest way to solve this is to divide the shape into 2 different rectangular prisms. Your new equation would be: SA = Sa₁ + Sa₂ or it could be

SA = [2 (wl + hl + hw)] + [2 (wl + hl + hw)]

We'll start by solving the surface area for the larger rectangular prism.

Sa₁ = 2 (wl + hl + hw) substitute w, l, and h

Sa₁ = 2 [(10)(0.5) + (12)(0.5) + (12)(10)]

Sa₁ = 2 (131)

Sa₁ = 262

Now do the same equation for the smaller rectangular prism

Sa₂ = 2 (wl + hl + hw) substitute w, l, and h

Sa₂ = 2 [(10)(0.5) + (4)(0.5) + (4)(10)]

Sa₂ = 2 (47)

Sa₂ = 94

Now add Sa₁ and Sa₂

SA = 262 + 94

SA = 356

1. (A)  Section titles  (lines starting with %% followed by a space and then a title).

2. (B)  Automatically pause code execution at the start of each section when running a script. (This is not a purpose of code in the MATLAB Editor.)

3. All these functions operate element-wise on each element of the matrix X and return a matrix of the same size.

The source of the section headers in the resulting document when publishing a script from the MATLAB Editor is:

a. Section titles (lines starting with %% followed by a space and then a title).

The statement that is not true about the purpose of code in the MATLAB Editor is:

b. Automatically pause code execution at the start of each section when running a script. (This is not a purpose of code in the MATLAB Editor.)

3. The commands that return a matrix of the same size as x, given a non-scalar matrix X, are:

a. mean(x)

b. sin(x)

c. log(x)

d. sum(x)

e. std(x)

f. sqrt(x)

All these functions operate element-wise on each element of the matrix X and return a matrix of the same size.

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Answer:

The helicopter

Step-by-step explanation:

brainliest plz

Answer:

I believe it is B

Step-by-step explanation:

As you see however they sell you have to add up the profits of them so it would be B.

Answer: (19,4)

Step-by-step explanation:

Subtract the x axis with the x axis and y with y.

So,

7-(-12)= 19

1-(-3)= 4

Answer:

x=14

Step-by-step explanation:

4x-y=21

y=3x-7

Substitute the second equation in for y in the first

4x - (3x-7) = 21

Distribute the minus sign

4x -3x +7 = 21

x +7 = 21

Subtract 7 from each side

x+7-7=21-7

x=14

Answer:   x=14 is right answer

4x-y=21 =

Slope = 4

x-intercept = 21/4 = 5.25000

 y-intercept = 21/-1 = -21.00000

y=3x-7 =

 Slope = 6.000/2.000 = 3.000

 x-intercept = 7/3 = 2.33333

 y-intercept = -7/1 = -7.00000

Step-by-step explanation:

Step  1  :

Equation of a Straight Line

Graph of a Straight Line

Calculate the Y-Intercept

Calculate the X-Intercept

Calculate the Slope

Hope this helps.

Answer:

$0.72 for 6 apples

Step-by-step explanation:

0.60 / 5 = 0.12

Answer:

(y-4)(y+4)

Step-by-step explanation:

When you factor the y^2 you need to factor the rest of your equation. Your K does not exist since it is a perfect square and there is no c. Then you square 16 which is 4 so you have (y-4) (y+4). Hope this helps :)

Jessica, Chang, and Manuel sent a total of 95 text messages over the weekend.

Let's represent the number of messages Jessica, Chang and Manuel sent by the letters j, c and m respectively. We need to use the given information to form equations that represent the situation.

Here's what we know:Chang sent four times as many messages as Manuel.

This can be written as:c = 4m Manuel sent five fewer messages than Jessica. This can be written as:m = j - 5The sum of messages sent by all three is 95. This can be written as:j + c + m = 95 Substitute c = 4m and m = j - 5 in the equation j + c + m = 95 to get:j + 4m + (j - 5) = 95 => 2j + 5m = 100Solve the equation 2j + 5m = 100 by expressing j in terms of m:j = (100 - 5m)/2 Now substitute this value of j in the equation m = j - 5:m = (100 - 5m)/2 - 5 => m = 15 - (5/2)mSolving for m we get:m = 10 Substituting this value of m in the equations j = (100 - 5m)/2 and c = 4m we get:j = 20, c = 40  , Jessica sent 20 messages, Chang sent 40 messages and Manuel sent 10 messages.

The solution is Jessica sent 20 messages, Chang sent 40 messages and Manuel sent 10 messages.

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Answer:

m = 5/2

Step-by-step explanation:

Slope = rise/run or (y2 - y1) / (x2 - x1)

The points are (1,3) and (3,8)

We see the y increase by 5 and the x increase by 2, so the slope is

m = 5/2

If the population standard deviation of a sample increases without other changes, the confidence interval is most likely to widen.

This is because the standard deviation is a measure of the spread of the data, so if it increases, the data points are more spread out from the mean. As a result, the range of values that could reasonably contain the true population parameter (i.e., the confidence interval) needs to be wider to account for the increased variability in the sample.
If the population standard deviation of a sample increases without other changes, the confidence interval is most likely to become wider.
When standard deviation increases, it indicates more variability in the data. As a result, the confidence interval, which is a range of values that estimates the true population parameter with a certain level of confidence, needs to be wider to account for the increased variability. This ensures that the true population parameter is still captured within the interval with the same level of confidence.

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Answer:

x=11°

Step-by-step explanation:

We can see that the square is split into 4 triangles. We also have the midpoint T. Because Each angle of a square is 90 degrees and ∠PQR is divided in half, m∠PQT=45 degrees. By substitution, (4x+1)=45°

Solve:

(4x+1)=45°

4x=44°

x=11°

Answer:

Obtuse because one angle is over 90 degrees

Answer:

-(8,-1)

Step-by-step explanation:

Answer:

c. -8,-1

Step-by-step explanation:

Hope this helps.

~Learning with Natalia~

The answer of the given question based on the vector for finding cross product is , (a)  v x w = -9i - 4j - 4k. , (b) w x v = 14i - 2j - 3k. , (c) v x v = 21i - 7j.

The two given vectors are:

v = i - 3j + 4k and w = i - 2j - 2k.

(a) To find v x w, we use the cross-product formula:

|i j k| |v1 v2 v3| x |w1 w2 w3|

v x w = (v2w3 - v3w2)i - (v1w3 - v3w1)j + (v1w2 - v2w1)k

Substituting v and w into the formula gives:

v x w = |i j k| |1 -3 4| x |1 -2 -2|

v x w = [(3 x (-2) - (-3) x (-2))i - ((1 x (-2) - (-3) x 1)j + (1 x (-2) - (-2) x 1)k]

v x w = (-6 - 3)i - (-2 - 2)j + (-2 - 2)k

v x w = -9i - 4j - 4k

Therefore, v x w = -9i - 4j - 4k.

(b) To find w x v, we use the cross-product formula:

|i j k| |w1 w2 w3| x |v1 v2 v3|

w x v = (w2v3 - w3v2)i - (w1v3 - w3v1)j + (w1v2 - w2v1)k

Substituting v and w into the formula gives:

w x v = |i j k| |1 -2 -2| x |1 -3 4|

w x v = [(2 x 4 - (-2) x (-3))i - ((1 x 4 - (-2) x 1)j + (1 x (-3) - (-2) x 1)k)]

w x v = (8 + 6)i - (4 - 2)j - (1 + 2)k

w x v = 14i - 2j - 3k

Therefore, w x v = 14i - 2j - 3k.

(c) To find v x v, we use the cross-product formula:

|i j k| |v1 v2 v3| x |v1 v2 v3|

v x v = (v2v3 - v3v2)i - (v1v3 - v3v1)j + (v1v2 - v2v1)k

Substituting v into the formula gives:

v x v = |i j k| |1 -3 4| x |1 -3 4|

v x v = [(3 x 4 - (-3) x (-3))i - ((1 x 4 - (-3) x 1)j + (1 x (-3) - (-3) x 1)k)]

v x v = (12 + 9)i - (4 + 3)j - (0 + 0)k

v x v = 21i - 7j

Therefore, v x v = 21i - 7j.

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The answer of the given question based on the vector for finding cross product is,

(a) v × w = 14i + 6j + 1k

(b) w × v = -14i + 6j + 1k

(c) v × v = 0i + 0j + 0k

To find the cross product of two vectors v and w, we can use the following formula:

v × w = (v2w3 - v3w2)i + (v3w1 - v1w3)j + (v1w2 - v2w1)k

Given v = i - 3j + 4k and w = i - 2j - 2k, let's calculate the cross products:

(a) v × w:

v2w3 - v3w2 = (-3)(-2) - (4)(-2) = 6 + 8 = 14

v3w1 - v1w3 = (4)(1) - (1)(-2) = 4 + 2 = 6

v1w2 - v2w1 = (1)(-2) - (-3)(1) = -2 + 3 = 1

So, v × w = 14i + 6j + 1k.

(b) w × v:

Using the same formula, we interchange the order of v and w in the calculations:

v2w3 - v3w2 = (-2)(4) - (-2)(-3) = -8 - 6 = -14

v3w1 - v1w3 = (4)(1) - (1)(-2) = 4 + 2 = 6

v1w2 - v2w1 = (1)(-2) - (-3)(1) = -2 + 3 = 1

So, w × v = -14i + 6j + 1k.

(c) v × v:

Using the same formula with v as both vectors:

v2v3 - v3v2 = (-3)(4) - (4)(-3) = -12 + 12 = 0

v3v1 - v1v3 = (4)(1) - (1)(4) = 4 - 4 = 0

v1v2 - v2v1 = (1)(-3) - (-3)(1) = -3 + 3 = 0

So, v × v = 0i + 0j + 0k, which is the zero vector.

In summary:

(a) v × w = 14i + 6j + 1k

(b) w × v = -14i + 6j + 1k

(c) v × v = 0i + 0j + 0k

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The expressions will be:

and

and

By solving the equations 2x+y=4, x-y=11 we get values x=5/3 and y=2/3

An equation is a formula in mathematics that expresses the equality of two expressions by linking them with the equals sign =. In French, an equation is defined as including one or more variables, but in English, an equation is any well-formed formula consisting of two expressions coupled with an equals sign.

An equation is composed of two expressions joined by an equals sign (=). The expressions on the two sides of the equals sign are referred to as the equation's left-hand side and right-hand side. The right side of an equation is frequently considered to be zero.

Given,

2x+y=4

x-y=1

By solving above two equations we get,

2x+y=4

x-y=1

3x=5

x=5/3

y=-1+x

y=(5/3)-1

y=2/3

Therefore, by solving the equations 2x+y=4, x-y=11 we get values x=5/3 and y=2/3

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Answer:

117 pounds

Step-by-step explanation:

the ratio is given:

4 : 5

Colin : Dan

Simplest way to solve:

4x = 52

x = 52/4 = 13

now, x is one part of the share.

There are 9 total parts:

9 x 13 = 117.

Hope this helps

Each bag of onions costs $3.70.

Given that Santiago buys milk and onions at the store and he pays a total of $25.78, and he pays a total of $3.58 for the milk and he buys 6 bags of onions that each cost the same amount, to determine an equation which can be used To determine how much each bag of onions costs, the following calculation must be made:

Therefore, each bag of onions costs $3.70.

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The equation that could be used to solve for the time t in hours that she drove before her stop is 80t + 100(8/3 - t) = 250.

An algebraic expression is the combination of numbers and variables in expressing and solving a particular mathematical question. An equation is the equality of expressions.

Let t = time she drove before her stop

If the total trip time is 3 hours including the stop, which took 20 minutes, then the time she drove after the stop is 3 - t - 1/3 or 8/3 - t.

If altogether she drove a distance of 250 km, then the sum of the products of the rate of speed and time each drive is equal to 250.

(80 km/h)(t) + (100 km/h)(8/3 - t) = 250

Simplify the equation.

80t + 100(8/3 - t) = 250

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The number of ways to select 3 pages in ascending index order depends on the total number of pages available.

To find the number of ways to select 3 pages in ascending index order, we can use the concept of combinations . In combinatorics, selecting objects in a specific order is often referred to as permutations. However, since the order does not matter in this case, we need to consider combinations instead.

The number of ways to select 3 pages in ascending index order can be calculated using the combination formula. Since we are selecting from a set of pages, without replacement and order doesn't matter, we can use the formula C(n, k) = n! / (k!  (n-k)!), where n is the total number of pages and k is the number of pages we want to select.

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Answer:

fraction 4/12 or 1/3

decimal .333333333

percent 33%.333333

Step-by-step explanation:

Answer:

b. y-6=3/4

4x (y-6)=3

4x=3/(y-6)

y=3/(x-6.

a. not soo sure

Answer: Width = 18m

Length = 32m

Step-by-step explanation:

Let the width of a rectangle be x

Let the length of the rectangle be: x+14

Width = 18m

Length = 32m

Check the attachment for the explanation and further details.

Answer:

D, the lower right answer

Step-by-step explanation:

-9.8 > -11.3 is a true statement

and -9.8 is located to the right is -11.3 is a true statement

Answer:

-7

Step-by-step explanation:

20 - 3 (-5 + 2)^2

20 - 3 (-3)^2

20 - 3(9)

20 - 27

-7

The steel cube will float in mercury, completely submerged. The submerged depth of the cube is 0.25 m.

Given that,Length of the side of the steel cube = 0.25 mSpecific gravity of steel = 7.6Specific gravity of mercury = 13.6To determine the submerged depth of the cube.Let us calculate the buoyant force on the cube of steel,

The buoyant force acting on the steel cube is given as;B = V × ρfluid × g... (1)Where,V = Volume of the displaced fluidρfluid = Density of the fluidg = Acceleration due to gravityLet us find out the volume of the displaced fluid;As we know, Volume of the cube = l³ = 0.25³ = 0.015625 m³.

The volume of the displaced fluid is equal to the volume of the cube, therefore, Volume of the displaced fluid = 0.015625 m³.

Now, let us find out the density of the fluid.The density of the fluid is given as;ρfluid = ρ0 × SGfluidWhere,ρ0 = Density of water = 1000 kg/m³SGfluid = Specific gravity of mercury = 13.6,

Density of mercury = ρ0 × SGfluid= 1000 × 13.6= 13600 kg/m³.

Now, putting the values in equation (1), we get;B = V × ρfluid × g= 0.015625 × 13600 × 9.8= 2089 NThus, the buoyant force acting on the cube of steel is 2089 N. Now, let us find out the weight of the cube of steel.

The weight of the cube of steel is given as,W = m × g.... (2)Where,m = Mass of the steel cubeg = Acceleration due to gravityAs we know, Density of steel, ρ = 7.6 kg/m³.

Volume of the steel cube = l³ = 0.25³ = 0.015625 m³Mass of the steel cube,m = Volume × Density = 0.015625 × 7.6 = 0.118 kgPutting the values in equation (2), we get;W = m × g= 0.118 × 9.8= 1.1564 N.

Thus, the weight of the steel cube is 1.1564 N.The cube of steel will float in mercury, because, the buoyant force acting on the steel cube (2089 N) is greater than the weight of the steel cube (1.1564 N).Hence, the cube of steel will float completely submerged in the mercury, therefore, the submerged depth of the cube is 0.25 m. 

The buoyant force acting on the steel cube is calculated as B = V × ρfluid × g. The volume of the displaced fluid is equal to the volume of the cube (V).

The density of mercury is given by ρ0 × SGfluid, where the density of water, ρ0 = 1000 kg/m³ and SGfluid = Specific gravity of mercury = 13.6.

Therefore, the density of mercury is given by ρfluid = ρ0 × SGfluid = 1000 × 13.6 = 13600 kg/m³. The buoyant force acting on the cube of steel is 2089 N. The weight of the cube of steel is given by W = m × g, where the mass of the steel cube is m = Volume × Density = 0.015625 × 7.6 = 0.118 kg.

Therefore, the weight of the steel cube is 1.1564 N. Since the buoyant force acting on the steel cube (2089 N) is greater than the weight of the steel cube (1.1564 N), the cube of steel will float completely submerged in the mercury. The submerged depth of the cube is 0.25 m.

The steel cube will float in mercury, completely submerged. The submerged depth of the cube is 0.25 m.

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