a rectangular retaining wall has an area of 15 square feet. the height of the wall is two feet lesss than its length. find the height and the length of the wall.

Answer:

first move eight to the left on the first number line

-8

on the second number line move two to the right, from where you are on the first

-6

on the third move back two

-8

Answer:

6.75 miles

Step-by-step explanation:

Since it is 2.25 per 1/2 hour to get to 1 1/2 hour you multiply by 3. Then you do 2.25 times 3 and it gives you 6.75 miles.

Answer:

[tex] \boxed{ \bold{ \huge{ \boxed{ \sf{a = - 1.75}}}}}[/tex]

Step-by-step explanation:

[tex] \sf{ \frac{ - 3}{4} = \frac{3a}{7} }[/tex]

Do cross multiplication

[tex] \dashrightarrow{ \sf{3a \times 4 = 7 \times ( - 3)}}[/tex]

[tex] \longrightarrow{ \sf{12a = - 21}}[/tex]

Divide both sides by 12

[tex] \longrightarrow{ \sf{ \frac{12a}{12} = \frac{ - 21}{12}}} [/tex]

Calculate

[tex] \longrightarrow{ \sf{a = - 1.75}}[/tex]

Hope I helped!

Best regards! :D

Answer:

there's a site called cymath you can put equations there and it answers almost all equations

Step-by-step explanation:

Answer:

LN = 37

Step-by-step explanation:

Sinø=opp/hyp

Sin40=x/17. (× b.s by 17)

17Sin40=x

x=12.67

The length of perpendicular i.e., x of the right angled triangle rounded off to two decimal places is 10.92 units.

What is trigonometry ?

Trigonometry is the branch of mathematics which examines the relationship between triangle sides and angles as well as the relevant functions of any angle.

A right angled triangle is given which has an angle of measure 40° and a side of 17 units. We know that to find out the perpendicular or any other side in a right angled triangle we use trigonometry.

Using the formula for sin θ which states that :

sin θ = Perpendicular / hypotenuse

As , the perpendicular is x , the value of which we have to calculate.

sin 40° = x / 17

x = 17 × sin 40°

x = 17 × 0.6428

x = 10.9276

If we round off it to two decimal places we get :

x = 10.92 units

Therefore , the length of perpendicular i.e., x of the right angled triangle rounded off to two decimal places is 10.92 units.

Learn more about trigonometry here :

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Answer:

C

Step-by-step explanation:

Follow the order in the question

x-6

then is divided by 2 so put it all over 2

Answer:

-4

Step-by-step explanation:

because negative numbers count up the opposite way

The answer will b C) $600. This is because they sell 30 shirts a day for $20 each, so you will do 30 x 20.

Steps to solve:

8 / -2 * 42 + 9

~Divide

-4 * 42 + 9

~Multiply

-168 + 9

~Add

177

Best of Luck!

The simplified expression is equivalent to -159.

Given is an expression 8 ÷ -2 · 42 + 9, we need to simplify it,

To evaluate the expression 8 ÷ -2 · 42 + 9, we need to follow the order of operations, which is typically remembered using the acronym PEMDAS.

In this case, we should first perform the multiplication and division, and then the addition.

Starting with the multiplication and division:

8 ÷ -2 = -4

-4 · 42 = -168

Now we can add the result to 9:

-168 + 9 = -159

Therefore, the evaluation of 8 ÷ -2 · 42 + 9 is -159.

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Answer: It is being dilated by a scale factor of 1/3.

Step-by-step explanation:

The pre-image has the coordinates (0,0) (6,0) (6,-3) and (0,-3) and a transformation has been applied to it to get the coordinates of the image to be (0,0) (2,0) (2,-1) ( 0,-1)

Looking at the coordinates we can see that to get from 6 to 2 you will have to multiply by  1/3 and to  get from -3 to -1 you will have to multiply by 1/3.

This means that pre-image was dilated  by a scale factor of 1/3.

Answer:

Short answer: the pre-image was dilated  by a scale factor of 1/3.

Step-by-step explanation:

Answer:

$19.25

Step-by-step explanation:

4/4-1/4=3/4

=3/4×40

=30-5

=25-5.75

=$19.25

Expand:

-3x - 9 = -3x - 3 - 5

Simplify:

-3x - 9 = -3x - 8

Add 3x to both sides:

-9 = -8

THERE IS NO VALUE FOR X THAT MAKES THIS EQUATION TRUE

Answer:

3/10

Step-by-step explanation: you multiply 3 and 1/10

Answer:

-5/9

Step-by-step explanation:

-0.5555555555 repeating = -5/9

Answer:

-5/9

Step-by-step explanation:

5 divided by 9 equals 0.5555

Answer:

Yes

Step-by-step explanation: In order to build a triangle, the 2 smaller numbers must equal or be bigger than the largest number. 7+5 = 12 which is bigger than 11

Answer:

Question 21

Question 22

Question 23

Step-by-step explanation:

When the question says a line bisects an angle which means that this line is cut exactly at the centre of an angle so both angles will be the same :

Question 21,

[tex]∠PQR = ∠SQR[/tex]

[tex]∠PQS = 22°[/tex]

[tex]∠PQR = ∠PQS + ∠SQR[/tex]

[tex]∠PQR = 22 + 22 = 44°[/tex]

Question 22,

[tex]∠ABD = 94°[/tex]

[tex]∠ABC = ∠CBD = 94 \div 2 = 47°[/tex]

Question 23,

[tex]∠ABD = ∠DBC[/tex]

[tex]x + 15 = 4x - 45[/tex]

[tex]4x - x = 15 + 45[/tex]

[tex]3x = 60[/tex]

[tex]x = 60 ÷ 3 = 20°[/tex]

[tex]∠ABD = 20 + 15 = 35°[/tex]

[tex]∠DBC = 4(20) - 45 = 35°[/tex]

[tex]∠ABC = ∠ABD + ∠DBC = 35 + 35 = 70°[/tex]

Answer:

If you're rounding to the nearest 100, then 949 is the answer

Step-by-step explanation:

Answer:

945 is the answer

Step-by-step explanation:

because if you take it to the nearest 100 it will be 945

Answer:

5.625

Step-by-step explanation:

1.) Add the strawberries and blueberries together

2.) Subtract 1.37

3.) Divide by 2

Answer:

C 90

Step-by-step explanation:

[tex](\frac{15miles}{1cm} )*6cm=15miles*6=90miles[/tex]

answer is c

Answer:

147

Step-by-step explanation:

24.5x6  is 147 so she gives 147 in total

Answer:

$27,770.97

Step-by-step explanation:

Answer:

49/2

Step-by-step explanation:

Answer:

49/2 is ur answer hope i helped

Step-by-step explanation: