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2 years ago

Use the table to work out the values of a , b , c , and d .

Mathematics

2 answers:

belka [17]2 years ago

7 0

Answer:

a = 10

b = 2

c = -6

d = -10

Step-by-step explanation:

When x = -3

y = -4 (-3) - 2

y = 10

a = 10

When x = -1

y = -4 (-1) - 2

y = 2

b = 2

When x = 1

y = -4 (1) - 2

y = -6

c = -6

When x = 2

y = -4 (2) - 2

y = -10

d = -10

hope this helps and is right!! p.s. i really need brainliest :)

finlep [7]2 years ago

3 0

your so beautiful hayla pck me ahhh ahh yummy

$tex]\purple{\rule{45pt}{7pt}}\blue{\rule{45pt}{999999pt}}$

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PLEASE HELP!!on a piece of paper graph f(x)=2•(3)^x.Then determine which answer choice matches the graph you drew.

Dahasolnce [82]

Answer:

Graph B

The graph in the attached figure

Step-by-step explanation:

we have

$f(x)=2(3)^{x}$

This is a exponential function

of the form

$f(x)=a(b)^{x}$

where

a is the initial value

b is the base

r is the rate

b=1+r

In this problem

a=2 ----> the y-intercept

b=3

1+r=3 -----> r=3-1=2 -----> r=200%

The y-intercept of the graph is equal to 2

As x increases the value of f(x) increases

therefore

Graph B

4 0

2 years ago

A figure is chosen from inside the blue region. Which statement about that figure is true?

lana [24]

Answer:

all 4 angles are congruent

Step-by-step explanation:

2 pairs of parallel sides.

4 right angles (90°).

Opposite sides are parallel and congruent.

All angles are congruent

6 0

3 years ago

I dont understand this question, and needs to be done by tomorrow morning please help

gladu [14]

Answer:

ABCD and EFGH

ABCD and PQRS (or EFGH and PQRS)

Dilate by a scale factor of 3

Step-by-step explanation:

Congruent means they have the same shape and size.

Similar means they have the same shape, but not necessarily the same size.

The orientation (rotation angle) or position do not matter.

EFGH is reflected and rotated, so it maintains the same shape and size as ABCD. Therefore, they are congruent.

PQRS is scaled and translated, so it has the same shape, but different size than ABCD. Therefore, they are similar but not congruent.

Also, PQRS is similar to EFGH, but not congruent.

To make EFGH congruent to PQRS, we need to make it the same size. So we need to scale EFGH by a factor of 3.

3 0

3 years ago

A person gets on a Ferris wheel at the starting point. The starting point is 15 feet off the ground. The Ferris wheel has a radi

lisov135 [29]

<h2>Answer:</h2>

$\boxed{\frac{25}{2}(\sqrt{6}+\sqrt{2})+65}$

<h2>Explanation:</h2>

<em>The height of the rider from the ground after the Ferris wheel</em> equals <em>the starting point is 15 feet off the ground </em><em>plus </em><em>the radius of the Ferris wheel </em><em>plus </em><em>the opposite side of the triangle ΔABC </em>(See figure below).<em> </em>Hence our goal is to find this side. We have the angle $11\pi /2=165^{\circ}$ , therefore the angle ∠BAC = 165° - 90° = 75°. So this side can be found using trigonometry:

$\overline{BC}=\overline{AB}sin(75^{\circ})=50sin(75^{\circ})=\frac{25}{2}(\sqrt{6}+\sqrt{2})$

Finally, the height is:

$H=\frac{25}{2}(\sqrt{6}+\sqrt{2})+15+50 \\ \\ \boxed{H=\frac{25}{2}(\sqrt{6}+\sqrt{2})+65}$

6 0

2 years ago

On the Algebra test the number of students who got a grade A was three more than twice the number of students who got lower grad

svlad2 [7]

X= # students who got lower grades
2x+3= # students with grade A

STEP 1:
Add the two sets above equal to 24.

x + (2x + 3)= 24
combine like terms

3x + 3= 24
subtract 3 from both sides

3x= 21
divide both sides by 3

x= 7 (# students lower than A)

STEP 2:
substitute x value from step 1 to find # grade A students

=2x + 3
=2(7) + 3
=14 + 3
=17 (# grade A students)

CHECK:
x + (2x + 3)= 24
7 + 2(7) + 3= 24
7 + 14 + 3= 24
24= 24

ANSWER: There were 17 students with grade A.

Hope this helps! :)

4 0

3 years ago

Use the table to work out the values of a , b , c , and d .​

Use the table to work out the values of a , b , c , and d .