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Katena32 [7]
2 years ago
7

A quantity x varies directly with the square of y and inversely with z. If x=40 when y=4 and z=2, find x when y=10 and z=25. Do

not include "y=" in your answer.
Mathematics
1 answer:
olga2289 [7]2 years ago
5 0

Answer:

x=20

Step-by-step explanation:

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A basket contains 12 apples and some other fruit. Write an equation that could be used to find the total number of fruits in the
o-na [289]
A basket contains 12 apples and some other fruit
40% of the total fruit are apples...so 40% of the total fruit is 12..

0.40x = 12....with x being the total fruit in the basket <== ur equation
x = 12 / 0.40
x = 30....and u have 30 pieces of fruit in the basket
7 0
3 years ago
What is the measure of arc BC?<br> 130<br> 65<br> 32.5<br> 180
ale4655 [162]

Answer:

The measure of arc BC is 130° ⇒ 1st answer

Step-by-step explanation:

In a circle:

  • The measure of an arc is equal to the measure of the central angle subtended by it
  • The measure of an arc is equal to double the measure of the inscribed angle subtended by it
  • Central angles subtended by the same arc are equal in measures
  • Inscribed angles subtended by the same arc are equal in measures
  • The measure of central angle is double the measure of the inscribed angle which subtended by its arc

∵ Angle BDC is an inscribed angle

∵ It is subtended by the arc BC

- By using the 2nd fact above

∴ The measure of arc BC = 2 × the measure of ∠BDC

∵ The measure of angle BDC is 65 degree

∴ The measure of arc BC = 2 × 65°

∴ The measure of arc BC = 130°

The measure of arc BC is 130°

7 0
3 years ago
In the equation Y = 8x+ 5 the name for y are
Fofino [41]

Answer:

kg,otslitalitzlrluralurapur

5 0
3 years ago
What is the effect of adding 3 to the left side of the equation y = 2 x + b ?
Tatiana [17]

Answer:

There is a vertical change of 3 units down.

4 0
3 years ago
What is the rate of change for f(x) = 4 sin x − 2 on the interval from x = 0 to x = pi over 2? pi over 4 4 over pi pi over 8 8 o
MaRussiya [10]
Hello,
f(π/2)=4*sin(π/2)-2=4*1-2=2
f(0)=4*sin(0)-2=0-2=-2

rate=(2+2)/(π/2-0)=8/π
Answer D
3 0
3 years ago
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