All categories

3 years ago

I need help with this problem. I have attached the problem below. offering max points.

Mathematics

2 answers:

Ne4ueva [31]3 years ago

5 0

Answer:

x=20

Step-by-step explanation:

Brainliest please

Lerok [7]3 years ago

3 0

The 2 marked angles are alternate angles and so they are equal.

Therefore:- 3x + 5 = 65

3x = 60

x = 20 (answer)

You might be interested in

Plz HELP BRAINLIEST IF CORRECT THANKS

boyakko [2]

Answer:

Step-by-step explanation:

Rise over run... slope formula:

$\frac{y^2-y^1}{x^2-x^1}$

x=0, y=0

x=1, y=5

$\frac{5-0}{1-0}=\frac{5}{1} =5$

6 0

3 years ago

The model represents x2 – 9x + 14.

Stels [109]

Factorize the quadratic trinomial $x^2 - 9x + 14$ by the rule:

$ax^2+bx+c=a(x-x_1)(x-x_2), \text{ where } x_1,\ x_2 \text{ are its roots. }$

1. Find the roots:

$D=(-9)^2-4\cdot 14=81-56=25,\ \sqrt{D}=5,\\ \\ x_1=\dfrac{9-5}{2}=2,\ x_2=\dfrac{9+5}{2}=7.$

2. Factorize the polynomial:

$x^2 - 9x + 14=(x-2)(x-7).$

3. Only factor x-2 is given in options, then the correct choice is B.

6 0

2 years ago

Read 2 more answers

1. A retirement account is opened with an initial deposit of $8,500 and earns 8.12% interest compounded monthly. What will the a

Rudik [331]

Answer:

Part A) $\$42,888.48$

Part B) $A=\$22,304$

Part C) The graph in the attached figure

Step-by-step explanation:

Part A) What will the account be worth in 20 years?

we know that

The compound interest formula is equal to

$A=P(1+\frac{r}{n})^{nt}$

where

A is the Final Investment Value

P is the Principal amount of money to be invested

r is the rate of interest in decimal

t is Number of Time Periods

n is the number of times interest is compounded per year

in this problem we have

$t=20\ years\\ P=\$8,500\\ r=0.0812\\n=12$

substitute in the formula above

$A=8,500(1+\frac{0.0812}{12})^{12*20}$

$A=8,500(1.0068)^{240}$

$A=\$42,888.48$

Part B) What if the deposit were compounded monthly with simple interest?

we know that

The simple interest formula is equal to

$A=P(1+rt)$

where

A is the Final Investment Value

P is the Principal amount of money to be invested

r is the rate of interest

t is Number of Time Periods

in this problem we have

$t=20\ years\\ P=\$8,500\\r=0.0812$

substitute in the formula above

$A=8,500(1+0.0812*20)$

$A=\$22,304$

Part C) Could you see the situation in a graph? From what point one is better than the other?

Convert the equations in function notation

$A(t)=8,500(1.0068)^{12t}$ ------> equation A

$A(t)=8,500(1+0.0812t)$ -----> equation B

using a graphing tool

see the attached figure

Observing the graph, from the second year approximately the monthly compound interest is better than the simple interest.

5 0

3 years ago

If (angle)1 = 7x and (angle)4 = 3x + 20, what is the value of x?

Semenov [28]

The value of x is 5. Angle one and four are vertical. You can do this by writing 7x = 3x + 20. Isolate the variable by moving 3x to the other side. If you do this, 3x becomes negative, and you end up with 7x-3x = 20 --> 4x = 20.
x=5.

7 0

3 years ago

Read 2 more answers

What is the sum of 1/9, 2/3,and 5/18? A.19/18 B.8/30 C.4/15 D.12/9

amm1812

1/9 times 2/2=2/18
2/3 times 6/6=12/18

2/18+12/18+5/18=(2+12+5)/18=19/18=1 and 1/8

A is answer

8 0

3 years ago