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ra1l [238]
3 years ago
13

Help with math...i will give brainlys

Mathematics
2 answers:
denpristay [2]3 years ago
8 0

Answer:

1. a. Corresponding angles

b. alternate exterior angles

c. same side interior angles

2. answer is 9

Step-by-step explanation:

4x+2=7x-25

subtract for on both sides

2=3x-25

Add 25 on both sides

27=3x

Then divide 3 on both sides

x=9

dem82 [27]3 years ago
6 0

Keep this for future reference.

Answer:

1a. corresponding angles

1b. alternate exterior angles

1c. same side interior angles

2. it is simple, solve for x just like in Algebra, x=9

4x+2=7x-25

4x+27=7x

27=3x

9=x

Step-by-step explanation:

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Write an equation in slope-intercept form of the line with slope −4/5 that contains the point (−5,−4).
Dmitry [639]

Answer:

B

Step-by-step explanation:

<u>Slope-intercept form:</u>

y= mx +c, where m is the slope and c is the y-intercept.

Given that the slope is -4/5,

y =  -  \frac{4}{5} x + c

To find the y-intercept, substitute a pair of coordinates.

When x= -5, y= -4,

- 4 =  -  \frac{4}{5} ( - 5) + c \\  - 4 =  4 + c \\ c =  - 4  -  4 \\ c =  - 8

Thus, the equation of the line is

y =  -  \frac{4}{5} x - 8

6 0
3 years ago
F(x) = 3x + 2
Vinvika [58]

Answer:

g(f(x)) = 9x² + 12x + 5

Step-by-step explanation:

g(f(x))

= g(3x + 2) ← substitute x = 3x + 2 into g(x)

= (3x + 2)² + 1

to expand (3x + 2)² = (3x + 2)(3x + 2)

each term in the second factor is multiplied by each term in the first factor

3x(3x + 2) + 2(3x + 2) ← distribute both parenthesis

= 9x² + 6x + 6x + 4 ← collect like terms

= 9x² + 12x + 4

then

g(f(x)) = (3x + 2)² + 1 = 9x² + 12x + 4 + 1 = 9x² + 12x + 5

5 0
1 year ago
There are 801 students in the
Eddi Din [679]
It is real sly hard but I am sorry I can I think it is boys
5 0
3 years ago
Read 2 more answers
The radius of a right circular cone is increasing at a rate of 1.4 in/s while its height is decreasing at a rate of 2.3 in/s. At
Angelina_Jolie [31]

Answer:

The volume is changing at a rate given by:

\frac{dV}{dt} =19559.56\,\,\frac{in^3}{s}

Step-by-step explanation:

Let's recall the formula for the volume of acone, since it is the rate of the cone changing what we need to answer:

Volume of cone = \frac{1}{3} B\,*\,H

where B is the area of the base (a circle of radius R) which equals = \pi\,R^2

and where H stands for the cone's height.

We apply the derivative over time operator (\frac{d}{dt}) on both sides of the volume equation, making sure that we apply the rule for the derivative of a product:

V=\frac{1}{3} B\,*\,H\\\\V= \frac{1}{3} \pi\,R^2\,H\\\frac{dV}{dt} =\frac{\pi}{3}\,( \frac{d(R^2)}{dt} H+R^2\,\frac{dH}{dt} )\\\frac{dV}{dt} =\frac{\pi}{3}\,( 2\,R\,\frac{dR}{dt}\, H+R^2\,\frac{dH}{dt} )\\\frac{dV}{dt} =\frac{\pi}{3}\,( 2\,(110\,in)(1.4\,\frac{in}{s} )\,(151\,in)+(110\.in)^2\,(-2.3)\frac{in}{s} )\\\frac{dV}{dt} =19559.56\,\,\frac{in^3}{s}

8 0
2 years ago
There are 20 Boys on the Alden Middle school soccer team,40% also play on a travel team.How many of the boys on the middle schoo
Aleks [24]

Answer:

4/10

Step-by-step explanation:

take it or leave it

7 0
3 years ago
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