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3 years ago

-3 progression 8 common difference what is the 28th term

Mathematics

1 answer:

ss7ja [257]3 years ago

4 0

The answer for this problem would be 213

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In ΔJKL, the measure of ∠L=90°, KJ = 41, JL = 40, and LK = 9. What ratio represents the cosine of ∠J?

Katen [24]

1 because if you were to get h rn e measure of the problem right here it would be a cosine of 1

4 0

3 years ago

Can someone help me pleaseeeeeee :( no links pleaseee

Sergeu [11.5K]

a) Keith's car will have less gas.

Locate the point in which miles driven = 90 (Between 60 and 120)

Since Keith's line is lower than Carmen, he has less gas.

We can also find the difference: 11 - 10 = 1.

It will have 1 less gallon.

b) Look at the point in which both lines meet. This means that they have the same amount of gallons remaining (8) at 180 miles driven.

Before 180 miles, Keith's car will always have less car remaining.

3 0

3 years ago

Write the equation for a parabola that has x-intercepts (−4.5, 0) and (−2.8, 0) and y-intercept (0, 37.8).

zaharov [31]

Answer:

$y=3(x+4.5)(x+2.8)$ or $y=3x^2+21.9x+37.8$

Step-by-step explanation:

we know that

The equation of a vertical parabola in factored form is equal to

$y=a(x-x_1)(x-x_2)$

where

a is a coefficient

x_1 and x_2 are the roots or x-intercepts of the quadratic equation

In this problem we have

$x_1=-4.5\\x_2=-2.8$

substitute

$y=a(x+4.5)(x+2.8)$

<em>Find the value of a</em>

we have the y-intercept (0,37.8)

substitute the value of x and the value of y of the y-intercept in the equation and solve for a

$37.8=a(0+4.5)(0+2.8)$

$a=37.8/12.6\\a=3$

$y=3(x+4.5)(x+2.8)$

Convert to expanded form

$y=3(x^2+2.8x+4.5x+12.6)$

$y=3x^2+21.9x+37.8$

7 0

3 years ago

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Pls help me thank u..........................

defon

Answer:

vu7jhbgvklgvtl

Step-by-step explanation:

5 0

3 years ago

What is the cubic units of 2ft by 2 ft by 2ft

Blababa [14]

2ft × 2ft × 2ft is 8ft cubed

8 0

4 years ago

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