PLEASE HELP I HAVE TO SUBMIT IN AN HOUR

Given:

The limit problem is:

[tex]\lim_{x\to 3}(x^2+8x-2)[/tex]

To find:

The limit of the function by using direct substitution.

Solution:

We have,

[tex]\lim_{x\to 3}(x^2+8x-2)[/tex]

Applying limit, we get

[tex]\lim_{x\to 3}(x^2+8x-2)=(3)^2+8(3)-2[/tex]

[tex]\lim_{x\to 3}(x^2+8x-2)=9+24-2[/tex]

[tex]\lim_{x\to 3}(x^2+8x-2)=33-2[/tex]

[tex]\lim_{x\to 3}(x^2+8x-2)=31[/tex]

Therefore, the correct option is D.

Answer:

2

Step-by-step explanation:

The location of point G  which partitions the directed line segment from D to F into a 5:4 ratio is; x = 3

The formula for coordinate of a point that divides a line segment in a ration is given by;

x = (mx₂ + nx₁)/(m + n)

We are given the ratio 5:4

Thus m = 5 and n = 4

The endpoints of DF are D(-2) and F(7)

Thus;

x = ((5*7) + 4(-2))/(5 + 4)

x = 27/9

x = 3

Thus, the location of point G  which partitions the directed line segment from D to F into a 5:4 ratio is x = 3

Read more on division of a line segment at; https://brainly.com/question/8009114

Answer:

The power of the test will be highest for;

C. The sample size is n = 1,000, and 55 percent of all students actually use vending machines

Step-by-step explanation:

For a large sample test for proportions, we have;

[tex]z=\dfrac{\hat{p}-p}{\sqrt{\dfrac{p \cdot q}{n}}}[/tex]

Where;

[tex]\hat p[/tex] = The percentage of the hypothesized proportion = 20% = 0.20

p = The actual proportion

n = The size of the sample

The power of the test increases when;

The sample size 'n' is large

When the true vale of the measured items in the test is much larger than the value set as the null hypothesis

When the significant level is high

Therefore, we have;

The power of the test will be highest when the sample size is n = 1,000, and 55 percent of all students actually use vending machines

Answer:

C=2πr

Step-by-step explanation:

Answer:

ok

Step-by-step explanation:

Answer:

[tex]\frac{29}{72}[/tex]

Step-by-step explanation:

There are 360° in one complete rotation , thus angle turns

fraction = [tex]\frac{145}{360}[/tex] ( divide numerator and denominator by 5 )

             = [tex]\frac{29}{72}[/tex] ← in simpest form

Answer:

m<B= 52

Step-by-step explanation:

2x - 30 + 3x + 10 + 7x + 32 = 180

12x + 12 = 180

12x = 168

x = 14

m<B= 3x + 10

3(14) + 10

52

Answer:

oh yeah

Step-by-step explanation:

Answer:

x = -5

y = -1

Step-by-step explanation:

Y= -6/5x-7 and y=2/5x+1

then:

-6/5x - 7 = 2/5x + 1

simplify:

-8/5x = 8

divide both sides by 8:

-1/5x = 1

multiply both sides by 5:

-x = 5

x = -5

y = 2/5(-5) + 1 = -2 + 1 = -1

Answer:

B

Step-by-step explanation:

more points fall on the line. a close second is D but you can see that B is more accurate

Answer:

$2.10

Step-by-step explanation:

8.40-4.20=4.20÷2=2.10

Answer:

2.1

Step-by-step explanation:

(8.4-4.2)/2

=4.2/2

=2.1

Answer:

2

Step-by-step explanation:

Answer:

992.39

 Step-by-step explanation:

sales tax was 80.46 subtract from 1072.85 get 992.39 original price.

Answer:

d

Step-by-step explanation:

Answer:

[tex] \frac{15}{h} = \frac{20}{30} \\ 15 \times 30 = 20 \times h \\ h = \frac{450}{20} \\ h = 22.5[/tex]

Answer:

x=8

[tex]2x \times 10 \div 2\\ = 2(8) \times 10 \div 2\\ = 16 \times 10 \div 2 \\ = 160 \div 2 \\ = 80[/tex]

Answer:

x = 8 cm

Step-by-step explanation:

Area = 1/2bh

80 = 1/2(10)(2x)

10x = 80

x = 8

Answer:

i got 555 ft. hope this help you.

The equation that can be used to determine the number of years it would take for the price to be $0.10 is 0.10 = 0.05(1.0205)^t.

The equation that would be used is an exponential equation. An exponential equation is used because the rate of increase is a compound growth.

Exponential equations usually have this form: FV = PV( 1 + r)^t

Where:

0.10 = 0.05(1.0205)^t.

To learn more about exponential functions, please check: https://brainly.com/question/26331578

#SPJ1

Answer:

5

Step-by-step explanation:

7-2=x

7-2=5

x=5

.........................

Answer:

Its scaled half the bigger model and evidence is to divide your numbers by 2 or multiply by .5

Step-by-step explanation:

Answer:

100 feet

Step-by-step explanation:

pythagorean theorm

60^2+80^2= 10,000

Square root of 10,000= 100

Answer: 100

Step-by-step explanation:

Answer:

the answer should be false..

Answer:

12

Step-by-step explanation:

3 x 12= 36

36-9= 27

Answer:

3) x^2-yz/z^2

x = -3, y = 5 and z = -2 plug in these values

-3^2 -5(-2) /-2^2

= -1/4

decimal form: -0.25

4) x^2+y^2+z^2/xyz

x = -3, y = 5 and z = -2 plug in these values

-3^2+5^2+-2^2/-3*5*-2

= 2/5

decimal form: 0.4

5) x+y/z + y+z/x

x = -3, y = 5 and z = -2 plug in these values

(-3+5/-2)+(5+(-2)/-3)

= -2

6) 2x+y-z/x-3y+z

x = -3, y = 5 and z = -2 plug in these values

2(-3)+5-(-2)/-3-3(5)+(-2)

= -1/20

decimal form: -0.05

Answer:

(iii) (-3)^2 - (5)(-2)/(-2)^2

9 - (-10)/ 4

9+10/4

19/4

4.75

(iv) (-3)^2 + (5)^2 + (-2)^2/(-3)(5)(-2)

9 + 25 +4 / 30

9 + 29 / 30

38 / 3

1.26

(v) (-3) + (5)/(-2) + (5) + (-2)/(-3)

-8 / -2 + -10 / -3

4 + -10/ -3

LCM = -3

-12 + (-10)/ -3

-22/-3

7.3

(vi) 2(-3) + (5) - (-2)/(-3) - 3(5) + (-2)

-6 + 5/-3 -15 -2

-1 / -3 -17

-1 / -20

1/20

Answer: One

Step-by-step explanation:

Answer:

x = 20°

Step-by-step explanation:

here's your solution

=> it is given that whole angle is 90°

=> so, x + (3x + 10) = 90°

=> x + 3x + 10 = 90°

=> 4x + 10 = 90°

=>4x = 90 - 10

=> 4x = 80°

=.

=> x = 80/4

=> x = 20°

one angle is 20° and other 70°

hope it helps

Answer:

20 is your answer

x+3x+10=90 being right angle

4x=90-10

x=80/4=20

Answer:

ok pls mark me brainliest look below for the answer

Step-by-step explanation:

22

can you send a closer pic?