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2 years ago

Factor the expression using the GCF. 1. 9b+21 2. 8x+2 3. 14p-28 Thank You

Mathematics

2 answers:

Ira Lisetskai [31]2 years ago

7 0

Answer:

the answer is 2

Step-by-step explanation:

Setler [38]2 years ago

4 0

1. Factor out common coefficient factor:
9b+21 =. 3(3b+7)

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Negative 3/2 times negative 5 1/4

Travka [436]

You mean -3/2 * -51/4???

use the calculator to multiply them and you will get 19.125

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3 years ago

What is the measure of angle 15

Mademuasel [1]

Answer:

Step-by-step explanation:

m<15 = m<1 because of how the transversals are placed. so m<1 = 90º - 65º = 25º

that means that m<15=25º

7 0

2 years ago

Read 2 more answers

Find f(1) if f(x)=5^x

dolphi86 [110]

Answer:

The value of function for x = 1 , y = 5 i.e f(1) is 5

Step-by-step explanation:

Given as :

f(x) = $5^{x}$

Now from the function the value of y depend on the value of x

So , for x = 1

I.e f(1) = $5^{1}$

Or, f(1) = 5

Hence The value of function for x = 1 , y = 5 i.e f(1) is 5 Answer

4 0

3 years ago

A plane flying horizontally at an altitude of 1 mile and a speed of 510 mi/h passes directly over a radar station. Find the rate

sdas [7]

Answer:

442 miles

Step-by-step explanation:

Given

To properly solve this question, I illustrate some given parameters using attached image

From the image, apply Pythagoras theorem

$x^2 + 1^2 = y^2$

Differentiate w.r.t time (t)

$2x\frac{dx}{dt} + 0 = 2y\frac{dy}{dt}$

$2x\frac{dx}{dt} = 2y\frac{dy}{dt}$

Divide both sides by 2

$x\frac{dx}{dt} = y\frac{dy}{dt}$

From the question, we have that the plan travels are 510mi/h.

This implies that:

$\frac{dx}{dt} = 510mi/h$

So, we then calculate the value of x when the distance (y) is 2mi i.e.:

$y = 2mi$

Apply Pythagoras theorem

$x^2 + 1^2 = y^2$

$x^2 + 1^2 = 2^2$

$x^2 + 1 = 4$

$x^2 = 4-1$

$x^2 = 3$

$x = \sqrt 3$

So, the expression becomes:

$x\frac{dx}{dt} = y\frac{dy}{dt}$

$\sqrt 3 * 510 = 2* \frac{dy}{dt}$

$\frac{\sqrt 3 * 510}{2} = \frac{dy}{dt}$

$\sqrt 3 * 255 = \frac{dy}{dt}$

$\frac{dy}{dt} = 255\sqrt 3$

$\frac{dy}{dt} = 255 * 1.7321$

$\frac{dy}{dt} = 441.655$

$\frac{dy}{dt} = 442$

<em>Hence, the distance is 442 miles</em>

7 0

2 years ago

Find the area of the regular 2424-gon with radius 1010 mm.

Mkey [24]

Answer:

i got 32031.14

Step-by-step explanation:

the radious to the second power times pie

6 0

2 years ago