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3 years ago

Which are true or false

Mathematics

2 answers:

VashaNatasha [74]3 years ago

7 0

Answer:

Step-by-step explanation:

E is incorrect if you want the point to be exactly on the line. (8,158) is on the line.

D is true. But it would reduce down to the constant of 19.75.

C is true. The word about implies you are working with an estimate.

B is true. That's almost the definition of a proportionality definition.

A is not true. The denominator has to be one. so it would be so many gallons in 1 minute.

Sergeu [11.5K]3 years ago

5 0

a,c and e are true i think i might be wrong thow hope this helps:)

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I need help finding the Answer to #1 and #2

kaheart [24]

#3 is even I really hope this works

3 0

3 years ago

Seperate the number 53 into 3 parts so that the second number is 3 less than the first number and the third number is twice the

irga5000 [103]

Hello,

Let a the first, b the second and c the third.
a+b+c=53
b=a/3
c=2a
==>a+a/3+2a=53
==>10a/3=53
==>a=15.9
c=2*a=2*15.9=31.8
b=a/3=15.9/3=5.3

Proof: a+b+c=15.9+5.3+31.8=53

The second number is 5.3

7 0

2 years ago

The bus travels 35 blocks in 7 minutes . If the bus travels at a constant speed , how long will it take to travel 50 blocks ?

Mademuasel [1]

Answer:

10 min

Step-by-step explanation:

35/7=5 blocks in 1 min

50/5=10

6 0

2 years ago

Trigonometry

Alchen [17]

The area of the triangle PQR is 17.6 square units.

Explanation:

Given that the sides of the triangle are PQ = 12 and PR = 3 and $m\angle P = 78^{\circ}$

We need to determine the area of the triangle PQR

<u>Area of the triangle:</u>

The area of the triangle can be determined using the formula,

$\text {Area}=\frac{1}{2} qr \sin P$

Substituting the values, we get,

$\text {Area}=\frac{1}{2}(12)(3) \sin 78$

Simplifying, we have,

$\text {Area}=\frac{1}{2}(36)(0.98)$

Multiplying the terms, we have,

$\text {Area}=\frac{35.28}{2}$

Dividing, we get,

$\text {Area}=17.64$

Rounding off to the nearest tenth, we have,

$Area=17.6$

Thus, the area of the triangle PQR is 17.6 square units.

3 0

3 years ago

Read 2 more answers

Use trigonometric substitution to verify that

photoshop1234 [79]

T = 0
=> Q = 0
t = x
=> Q = arcsin(x/a)
rest it just simple integration of trigonometric function

8 0

2 years ago