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katovenus [111]

2 years ago

7

A bicycle tire has a radius of 26 inches. How many revolutions will this tire make if the bicycle is pedaled 1 mile? (Use 3.14 f

or π and 1 mile = 5280 feet).

1 answer:

Fittoniya [83]2 years ago

4 0

How far does a wheel move when it rotates once? The length of the outside of the tyre? Isn't that the same as the circumference?

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Hi, can u guys help me?

goblinko [34]

two gallons of a light green paint

4 0

3 years ago

How many milligrams of sodium thiosulfate (m.w. = 158) are represented by 0.25 mmol? (answer must be numeric; no units or commas

Natasha_Volkova [10]

To calculate for mass, simply multiply molar weight (MW) and number of mols. The molar weight (MW) is in units of mg / mmol. Therefore the mass is:

mass = (158 mg / mmol) (0.25 mmol)

mass = 39.5 mg

Answer:

39.5

5 0

3 years ago

Which linear equation has a slope of 3 and a y-intercept of –2?

deff fn [24]

Hey there!

We'll write our linear equation in the slope-intercept form, which is:

y = mx +b

Where m is the slope and b is the y-intercept. With that being said, we don't have to solve for anything here. We have both the slope in the y-intercept to plug in. We have:

y = 3x - 2

With 3 as the slope and 2 as the y-intercept.

Hope this helps!

7 0

3 years ago

Read 2 more answers

When the expression x2-3x-18 is factored completely,which is one of its factors?

lesya692 [45]

Answer:

(x+3) and (x-6) are factors

Step-by-step explanation:

The given expression is :

x²-3x-18

We need to find the factors of the above expression.

We can solve it using middle term splitting. We find two integers such that there product is -18 and sum is -3. These two numbers can be -6 and 3.

x²-3x-18 = x²-6x+3x-18

= x(x-6)+3(x-6) [taking common terms]

= (x+3) (x-6)

Hence, the factors of the above expression is (x+3) and (x-6).

4 0

3 years ago

What is true about △ABC? Select three options

rjkz [21]

Answer:

A) AB ⊥ AC

B) The triangle is a right triangle.

C) The triangle is an isosceles triangle

Step-by-step explanation:

we know that

the formula to calculate the distance between two points is equal to

$d=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}}$

step 1

Find the distance AB

we have

$A(-1,3), B(-5,-1)$

substitute in the formula

$d=\sqrt{(-1-3)^{2}+(-5+1)^{2}}$

$d=\sqrt{(-4)^{2}+(-4)^{2}}$

$d_A_B=\sqrt{32}\ units$

step 2

Find the distance BC

we have

$B(-5,-1),C(3,-1)$

substitute in the formula

$d=\sqrt{(-1+1)^{2}+(3+5)^{2}}$

$d=\sqrt{(0)^{2}+(8)^{2}}$

$d_B_C=8\ units$

step 3

Find the distance AC

we have

$A(-1,3),C(3,-1)$

substitute in the formula

$d=\sqrt{(-1-3)^{2}+(3+1)^{2}}$

$d=\sqrt{(-4)^{2}+(4)^{2}}$

$d_A_C=\sqrt{32}\ units$

step 4

Compare the length sides of triangle

$d_A_B=\sqrt{32}\ units$

$d_B_C=8\ units$

$d_A_C=\sqrt{32}\ units$

therefore

The triangle ABC is an isosceles triangle, because has two equal sides

The triangle ABC is a right triangle because satisfy the Pythagoras theorem

$BC^2=AB^2+AC^2$

$8^2=(\sqrt{32})^2+(\sqrt{32})^2$

$64=32+32$

$64=64$ ----> is true (Is a right triangle)

AB ⊥ AC because in a right triangle the legs are perpendicular

5 0

3 years ago

Read 2 more answers