The expression 3.14 x 103 is scientific notation for which of the following values? 314
3,140
31,400
314,000

Answers

Answer 1
Answer:

Answer:

3140

B is the correct option.

Step-by-step explanation:

The expression in scientific notation is given by 3.14*10^3

We can simplify 10^3 as

10^3\n=10*10*10\n\n=1000

Therefore, the expression becomes

3.14*1000

On multiplying, we get

3140

B is the correct option.

Answer 2
Answer: 3.14*10^3=3.14*1000=3,140

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Josh practices free throws during basketball practice on Monday and Tuesday. On Monday, he attempts 15 free throws and 6 basketballs went in the basket. Over both days, Josh wants at least 80% of his balls to go in the basket. If he makes every free throw on Tuesday, what is the minimum number of free throws required on Tuesday to reach his goal?

Find the missing value to the nearest hundredth. COS x = 7/14 *

Answers

Answer:

the cosine of x is 60

Step-by-step explanation:

If QRST is a rectangle, find the value of x if angle Q is equal to 5x+30

Answers

A rectangle is a four-sided flat shape where every angle is a right angle (90°). 

QRST = 90^0 

5x + 30 = 90   

5x = 60    

5x = 60 / 5

x = 12
If QRST is a rectangle then Q = 90°.

Threfore

5x + 30 = 90    |subtract 30 from both sides

5x = 60    |divide both sides by 5

x = 12

Suppose the surface area of a sphere is 324π square units. What is the volume, in cubic units, of this sphereA) 9π
B) 81π
C) 324π
D) 972π

Answers

Answer:

Option D is correct

972 \pi is the volume, in cubic units, of this sphere

Step-by-step explanation:

Surface area of sphere(S) and volume of sphere (V) is given by:

S = 4 \pi r^2

V = (4)/(3) \pi r^3                 .....[1]

As per the statement:

Suppose the surface area of a sphere is 324π square units

⇒S = 324π square units

then;

324 \pi = 4 \pi r^2

Divide both side by 4 \pi we have;

81 = r^2

or

r^2= 81

r = √(81) = 9 units

We have to find  the volume, in cubic units, of this sphere.

Substitute the given value in [1] we have;

V = (4)/(3) \pi \cdot 9^3 = (4)/(3) \pi \cdot 729

Simplify:

V = 4 \cdot \pi \cdot 243 = 972 \pi cubic units

Therefore, 972 \pi is the volume, in cubic units, of this sphere

D would be the answer

HELP! i don’t understand at all

Answers

Answer:

m∠TYW = 93°

Step-by-step explanation:

When naming anangle, the three letters used in the name represent specific points or vertices that define the angle. Each letter has a distinct meaning:

  • First Letter (Initial Point): This represents the starting point for one of the rays or line segments that form the angle.
  • Second Letter (Vertex): This represents the point where the two rays or line segments that form the angle meet.
  • Third Letter (Terminal Point): This represents the terminal point, which is the endpoint for the other ray or line segment that forms the angle.

Therefore, the angle named "VYU" refers to an angle that starts at point V, has a vertex at point Y, and ends at point U. This is shown on the attached diagram in red. Given m∠VYU = 93°:

  • m∠VYU = m∠6 = 93°

The angle named "TYW" refers to an angle that starts at point T, has a vertex at point Y, and ends at point W. This is shown on the attached diagram in blue.

  • m∠TYW = m∠4

Assuming that lines TU and VW are straight lines, ∠6 and ∠4 are vertically opposite angles.

According to the Vertical Angles Theorem, when two straight lines intersect, the opposite vertical angles are congruent.

Therefore, ∠4 ≅ ∠6, so:

  • m∠TYW = m∠VYU

As m∠VYU = 93°, then m∠TYW = 93°.

Answer:

VYW and TYW are opposite interior angles and thus have the same value of 93 deg.

What is the distance between the points (8,-4) and (-5, -4)

Answers

Answer: 13

Step-by-step explanation:

If triangle MNO is congruent to triangle PQR, which statement is not true?segment MN ≅ segment QP
^ would this be the untrue statement?

∠N ≅ ∠Q

segment NO ≅ segment QR

∠O ≅ ∠R

Answers

Answer: segment MN ≅ segment QP

Step-by-step explanation:

We know that if two triangles are congruent then their corresponding sides and angles are congruent.

Therefore, If triangle MNO is congruent to triangle PQR.

Then, segment MN ≅ segment PQ not segment QP  [by CPCTC]

because PQ is the corresponding to side MN.

∠N ≅ ∠Q    [by CPCTC]

segment NO ≅ segment QR  [by CPCTC]

∠O ≅ ∠R  [by CPCTC]

Therefore, the untrue statement will be:

segment MN ≅ segment QP

the first one is the untrue statement