Mathematics High School

hlp!
options:
A. [tex]x\leq -5[/tex]
B. [tex]x\geq -5[/tex]
C.[tex]x\geq 2[/tex]
D.[tex]x=4[/tex]

Hlp!options:A. [tex]x\leq -5[/tex]B. [tex]x\geq -5[/tex]C.[tex]x\geq 2[/tex]D.[tex]x=4[/tex]

Answers

Answer 1

Answer:

Option B

x ≥ (-5)

Step-by-step explanation:

Given;-3(x + 4) ≥ x + 8

So,

-3(x + 4) ≥ x + 8

-3x – 12 ≥ x + 8

Add both sides 12 we get,

-3x – 12 + 12 ≥ x + 8 + 12

-3x ≥ x + 20

Similarly, subtract x from both sides we get,

-3x – x ≥ x – x + 20

-4x ≥ 20

Then, divide both sides by (-4) we get,

-4x/(-4) ≥ 20/(-4)

x ≥ -5

Thus, The answer is x ≥ (-5).

Related Questions

I NEED HELP IN THIS PLSSS

Answers

Answer:

1. A

2. i think c not sure

Step-by-step explanation:

What is the circumference of the following circle? Diameter=3 Radius=1.5

Answers

Answer: 3π in terms of pi or 9.42 if in π or pi= 3.14

Step-by-step explanation:

The perimeter of a rectangle is 22,411 inches. The width of the
rectangle is 260 inches. What is the length, in inches, of the rectangle?

Answers

Answer:

Step-by-step explanation:

P = perimeter of the rectangle; and w = width of the rectangle.

Use the formula:

Length(L) = P/2 - w

Plug In:

22,411 ÷ 2 - 260

Solve:

22,411 ÷ 2 = 11205.510945.5

Answer is L = 10,945.5 inches
explain: perimeter is all 4 sides added together

We know one side is 260
we know the perimeter is 22,411

260 + 260 + L + L = 22,411
combine like terms

520 + 2L = 22,411
subtract 520 from both sides to isolate 2L

2L = 21,891
divide both sides by 2 to isolate L

L = 10,945.5 inches

x² + y² = 34
=
y = x+2
Show your working.

Answers

Answer:

[tex]\left \{ {{y=5} \atop {x=3}} \right.[/tex] or [tex]\left \{ {{y=-3} \atop {x=-5}} \right.[/tex]

Step-by-step explanation:

Answer:

(- 5, - 3 ) , (3, 5 )

Step-by-step explanation:

x² + y² = 34 → (1)

y = x + 2 → (2)

substitute y = x + 2 into (1)

x² + (x + 2)² = 34

x² + x² + 4x + 4 = 34

2x² + 4x + 4 = 34 ( subtract 34 from both sides )

2x² + 4x - 30 = 0 ( divide through by 2 )

x² + 2x - 15 = 0 ← in standard form

(x + 5)(x - 3) = 0 ← in factored form

equate each factor to zero and solve for x

x + 5 = 0 ⇒ x = - 5

x - 3 = 0 ⇒ x = 3

substitute these values into (2) for corresponding values of y

x = - 5 : y = - 5 + 2 = - 3 ⇒ (- 5, - 3 )

x = 3 : y = 3 + 2 = 5 ⇒ (3, 5 )

What is the perimeter of the triangle below?


48.0 units
14.7 units
16.7 units
24.0 units

Answers

16.7 units lmk if i’m wrong tho

Please help!!!!!!!! Thank you sooo much!

Answers

Answer:

see explanation

Step-by-step explanation:

(a)

∠ XBC = 55° because it corresponds to ∠ AXY

(b)

since XB = XC then Δ XBC is isosceles with base angles congruent, that is

∠ XBC = ∠ XCB = 55°

the sum of the 3 angles in Δ XBC = 180° , then

∠ BXC + 55° + 55° = 180°

∠ XBC + 110° =180° ( subtract 110° from both sides )

∠ XBC = 70°

what is the diffrence between -25 and -12

Answers

theyre both negative so you add them, -37
The difference is -13.

Calculate the difference between the two negative values
After you know the negative values you're comparing, you can calculate the difference. Do this by subtracting one negative value from the other. For example, you'd subtract -7 from -5 to get -2.
So (-25) - (-12) = -13

Yolanda says she can use a sphere to model the surface area of the boulders on this beach. explain whether yolanda is correct. yolanda is . since the boulders have , the best shape to model the surface area is a .

Answers

Yolanda is correct since the boulders have a circular shape, the best shape to model the surface area of a sphere.

What is a sphere?

A sphere is a three dimensional object that has all the set of all points equidistant from a single point in space. An example of a sphere is a ball. The boulder in this question has a spherical shape.

Surface area of a sphere = 4πr²

To learn more about the surface area of a sphere, please check: https://brainly.com/question/27267844

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Answer:

Step-by-step explanation:

Yolanda is correct since the boulders have a circular shape, the best shape to model the surface area of a sphere.

What is a sphere?

A sphere is a three dimensional object that has all the set of all points equidistant from a single point in space. An example of a sphere is a ball. The boulder in this question has a spherical shape.

Surface area of a sphere = 4πr²

To learn more about the surface area of a sphere, please check: brainly.com/question/27267844

#SPJ4

A straight line whose equation is 3y-2x=-2 meets the x-axis at R determine the coordinates of R
​

Answers

Answer:

3y-2x=-2

The straight line meets the X-axis when y = 0

Hence, 3(0) - 2(x) = -2

2x = 2

x = 1

Therefore, the coordinates of R is (1,0)

please help me I will give brainliest ​

Answers

Answer:

D

Step-by-step explanation:

um well just based on what its asking for it wants a sentence that uses both.

Help please right now you will get thanks and brainlest and 25 points it's due at 9

Answers

Answer:

B.

Step-by-step explanation:

Answer:

See below ~

Step-by-step explanation:

Question 4

P(6) = Number of 6 rolled / Total rollsP(6) = 10/50P(6) = 1/5 = 0.2 = 20% [A, B, and E]

Question 11

Part A

The complement of the event is all of the unlikely possibilitiesBasically everything other than rolling a 4[A, B, C, E, and F]

Part B

P' (4) = 1 - P (4)P' (4) = 1 - 1/6P' (4) = 5/6

solve 3y= x+1 and 2y= x
​

Answers

Answer:

(2, 1 )

Step-by-step explanation:

3y = x + 1 → (1)

2y = x → (2)

substitute 2y = x into (1)

3y = 2y + 1 ( subtract 2y from both sides )

y = 1

substitute y = 1 into either of the 2 equations and solve for x

substituting into (2)

2(1) = x

2 = x

solution is (2, 1 )

Answer:

{y,x} = {-1,-2}

Step-by-step explanation:

2y = - 2

  [2]    y = - 1

// Plug this in for variable  y  in equation [1]

  [1]    3•(-1) - x = -1

  [1]     - x = 2

// Solve equation [1] for the variable  x

  [1]    x = - 2

// By now we know this much :

   y = -1

   x = -2

{y,x} = {-1,-2}

hope this helps

pls mark brainliest

PLEASE HELP! URGENT! ASAP! WILL GIVE BRAINLEST!

Answers

Answer:

0.25π

Step-by-step explanation:

→ Expand the bracket

4 × cos²Ф = 2

→ Divide both sides by 2

cos²Ф = 0.5

→ Square root both sides

cos Ф =  [tex]\frac{\sqrt{2} }{2}[/tex]

→ Inverse cosine  [tex]\frac{\sqrt{2} }{2}[/tex]

cos⁻¹ (   [tex]\frac{\sqrt{2} }{2}[/tex]  ) = 0.25π

Answer:

Answer:

0.25π

Step-by-step explanation:

→ Expand the bracket

4 × cos²Ф = 2

→ Divide both sides by 2

cos²Ф = 0.5

→ Square root both sides

cos Ф =  

→ Inverse cosine  

cos⁻¹ (     ) = 0.25π

Step-by-step explanation:

Sean has 3 times as many vegetable plants as Liz and Sejuan combined. Liz has 3 vegetable plants, and Sejuan has 2 vegetable plants. How many vegetable plants does Sean have?

Which statements about this word problem are true? Check all that apply.

A: This is an example of a part-whole problem.
B: This is an example of a comparison problem.
C: Addition then multiplication can be used to solve the problem.
D: Subtraction then division can be used to solve the problem.
E: Division then multiplication can be used to solve the problem.

Answers

Answer:

C: Addition then multiplication can be used to solve the problem

Step-by-step explanation:

I will mark brainliest!!!

What is the slope?

A. 3/2
B. 1/2
C. 3/4
D. 2/3​

Answers

A or 3/2 is the correct slope.

2- -1 is 3

1- -1 is 2

Therefore the slope is 3/2 :)

Question 3
ceiling fan the blades of a ceiling fan have a length of 26 inches. the tips of the blades follow a circular path. how far does the tip of a
blade travel in 1/5 of a rotation? round to the nearest hundredth of an inch,
________inches

Answers

The distance the blades travel in 1/5 of a rotation is 32.67 in

Since the distance the blades of the ceiling fan rotate is the length of an arc, we find this length

What is the length of an arc?

The length of an arc is given by

L = Ф/360° × 2πr where

Ф = angle of rotation and r = length of blades of fan

Since

Ф = 1/5 of a rotation = 1/5 × 360° = 72° and r = 26 in

The distance the blades travel

So, substituting the values of the variables into the equation, we have

L = Ф/360° × 2πr

L = 72°/360° × 2π × 26 in

L = 1/5 × 52π in

L = 10.4π in

L = 32.67 in

So, the distance the blades travel in 1/5 of a rotation is 32.67 in

Learn more about length of an arc here:

https://brainly.com/question/8402454

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Greta is painting two different rectangular prisms. The prisms have the following dimensions.

Prism A:

Length: 1 foot
Width: 4 inches
Height: 8 inches

Prism B:

Length: 10 inches
Width: 2 inches
Height: 1.5 feet

Which prism has a greater surface area, and what is its surface area in square inches?

Answers

Answer:

prism B is greater

Step-by-step explanation:

prism A

lenght: 1×4=4

width: 4×8=32

height: 8×1=8

add them all up and multiply it by 2 = 4+32+8×2=52

prism B

lenght: 10×2=20

width: 2×1.5=3

height:1.5×10=15

add them all up and multiply it by 2= 20+3+15×2=76

A box with square base and a height of 8cm has a volume of 1 332 cm3. find the length of the side base​

Answers

Answer:

12.9 cm

Explanation:

Volume of rectangular box = Length × Width × Height

Given following:

Height = 8 cmConsider one of the base side as x

Solve for volume:

L × W × H = Vx × x × 8 = 1332x² = 1332/8x = √166.5 ≈ 12.9 cm

HELP!!!!!!
This is the only thing i dont understand in my math class

Answers

Answer:

{1, 2, 3, 4}

Step-by-step explanation:

Concepts

The domain of a function is all the possible x-values for that function. In other words, it's all the x-coordinates listed in the graph.

Application

In this case, we have to list the domain of the given function. To do this, we have to first label the points, and then list their x-coordinates in increasing order.

Solution

Points:

(1, 4)(2, 3)(3, 2)(4, 1)

X-Coordinates:

1, 2, 3, 4

Domain:

{1, 2, 3, 4}

Determine each segment length in right triangle ABC

Answers

The length of BC= 7√2 and BD = 7.

What is Trigonometry?

Trigonometry is a branch of mathematics that studies relationships between side lengths and angles of triangles.

Given:

AD= 7, AC= 14

In Δ BDC

cos 45 = B/ H

1/√2 = 7/ BC

BC= 7√2

In Δ BDC

sin 45 = P/H

1/√2= BD / 7√2

BD = 7

Learn more about trigonometry here:

https://brainly.com/question/26719838

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Is anyone free to help?

Answers

Answer:

-4 C (Negative 4 C)

Step-by-step explanation:

If its 20 C less in Moscow, then it must be 16-20 = - 4 C in Moscow.

Look up rules on subtracting large numbers from small numbers to understand how I got - 4.

Rome : 16 C
Moscow: 20 degrees colder

16-20= -4

Use the diagrams to determine which statements are true. Select all statements that are true.

Answers

Answer:

I don't see your questions.

Egypt. Africa. America

Find the vertex. f(x)=2^2 - 8​

Answers

Answer:

(0, -√2)

Step-by-step explanation:

Given :

f(x) = x² - 8

Finding vertex :

Given by (h, k)h = -b/2a = 0k = -D/4aD = √0 - 4(1)(-8) = √32 = 4√2k = -4√2/4 = -√2Vertex is (0, -√2)

PLEASE HELP!
Before you answer:
-No spam (Will be reported)
-No incorrect answers (Will be reported)
-Correct answers and explanations will be mark as BRAINLIEST
​

Answers

Answer:

For the circle with the diameter of 7cm, the area is about 38.48cm and the circumference is about 22cm

For the circle with the diameter of 5cm, the area is about 19.63cm and the circumference is about 15.7cm

Step-by-step explanation:

The formula to find the area of a circle is pi*r^2

The formula to find the circumference is 2*pi*r

r = radius, which can be determined simply by taking the diameter, and dividing it by 2.

Answer:

See below ~

Step-by-step explanation:

Circle 1 :

Area = πr² = 22/7 x (7/2)² = 11 x 7/2 = 77/2 = 37.5 cm²Circumference = 2πr = 2 x 22/7 x 7/2 = 2 x 11 = 22 cm

Circle 2 :

Area = πr² = 22/7 x (5/2)² = 22/7 x 25/4 = 550/28 = 19.64 cm²Circumference = 2πr = 2 x 22/7 x 5/2 = 220/14 = 15.71 cm

Find the surface area of the prism. Enter your answer in the box.

Answers

Answer:

Area of the prism = 2(lw + lh + wh)

l = length = 6 m

w = width = 3 m

h = height = 12 m

—

Area of the prism = 2(6*3 + 6*12 + 3*12) = 2(18 + 72 + 36) = 2(126) = 252 m²

—

Have a nice day!!

Help Find the unit rate.

4,928 rooms on 112 floors =
rooms per floor

Answers

4928 rooms / 112 floors

2464 rooms / 56 floors

---Really, all we are doing here is simplifying a fraction until we have a 1 in the denominator

44 rooms / 1 floor

Hope this helps!

A loaf of bread and 4 scones cost £3.30. If the loaf costs 90 pence how much would one scone cost ? .​

Answers

Answer:

Step-by-step explanation:

Givens

4 scones

1 loaf of bread

Total cost = 3.30

Equation

Let the loaf of bread = b

Let the scones = s

Cost = b + 4s

Solution

Substitute the givens into the equation

b + 4s = Cost

90 + 4s = 3.30                  Subtract 90 from both sides

90-90 + 4s = 3.30-90      Combine

4s = 2.40                          Divide by 4

4s/4 = 2.40/4                

s = 0.6 of a pound

Answer: 1 scone = 60 pence.

The volume of this rectangular prism is 51,615 cubic yards. What is the value of v? (will mark brainliest)

Answers

Answer:

v = 37 yards

Step-by-step explanation:

Volume of a rectangular prism = width × length × height

Given:

volume = 51,615 yd³width = vlength = 93 ydheight = 15 yd

Substituting the given values into the formula and solving for v:

⇒ 51615 = v × 93 × 15

⇒ 51615 = 1395 v

⇒ v = 51615 ÷ 1395

⇒ v = 37

Answer:

v = 37 yds

Step-by-step explanation:

Volume of a rectangular prism: length × width × height

V = L×W×H

v = 51,615 yd³l = 93 ydsw = v ydsh = 15 yds

Substitute the values above and solve for v:

51,615 = 93 × v × 15

51,615 = 1395v

51,615/1395 = 1395v/1395

37 = v

Final answer: 37 yds

Hope this helps!

This is the question picture

Answers

Answer:

A = X

B=Z

C=Y

Step-by-step explanation:

As they are congruent, their corresponding angles are also congruent

Answer:

a)

angle a is congruent to angle x

angle b is congruent to angle z

angle c is congruent to angle y

b)

line ab is congruent to line xz

line ac is congruent to line xy

line bc is congruent to line zy

c)

triangle bca is congruent to triangle zyx

Please help me! Im so confused. If you could explain, too that would be great!!! <3

Answers

Answer:

the base length is 8 units

Step-by-step explanation:

You can use pythagorean theorem to solve this

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