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Alik [6]
4 years ago
13

I need help!!!!! #1 5 1/2 + 0.6x=16 #2 5/9 divided by x = 3 3/4 Thanks!!!!!!!1

Mathematics
2 answers:
Ymorist [56]4 years ago
6 0
1. 5 1/2 + 0.6x =16
.6x=10.5
X=17.5
2. 3 3/4 times 9/5
X= 27/4
nikdorinn [45]4 years ago
4 0
Use the internet ok!!!!!!
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Given tan of theta = -2 and pi/2; find cos(2theta)
Nata [24]

Given tan of theta = -2 and pi/2; find cos(2theta)
The identity of cos (2 theta)= cos(2\theta )=\frac{1-tan^2\theta }{1+tan^2\theta }
Given tan of theta = -2 and pi/2.
So, let's plug in tan theta= -2
cos(2\theta)= \frac{1-(-2)^2}{1+(-2)^2}
=\frac{1-4}{1+4} (Squaring)
=\frac{-3}{5} (simplifying)
So, cos ( 2 theta) = -3/5.
Now we can plug in tan theta = π/2
cos(2\theta)= \frac{1-(π/2)^2}{1+(π/2)^2}
= \frac{1-pi^2/4}{1+pi^2/4} (Squaring)
=\frac{4-pi^2}{4+pi^2} Simplifying
So, cos ( 2 theta)= -3/5 and (4-pi^2)/(4+pi^2)

5 0
4 years ago
Read 2 more answers
If f(x) = x2, and<br> g(x) = x – 1, then<br> f(g(x)) = [? ]x2+[?]+ [?]
Basile [38]

Answer:

f(g(x)) = x² - 2x + 1

Step-by-step explanation:

To find f(g(x)), substitute x = g(x) into f(x) , that is

f(g(x))

= f(x - 1)

= (x - 1)² ← expand using FOIL

= x² - 2x + 1

5 0
3 years ago
Tuesday morning the temperature was -4°F. The temperature rose 5°F by lunchtime and dropped 30°F by midnight. What is the temper
const2013 [10]
Okay, to start off using a number line is always useful. Negative 4 plus 5 equals 1, if it dropped by 30 which is subtracting 30 from 1 it takes 1 out of the positive zone to the negative. Which equals to negative 29.
4 0
3 years ago
A family is purchasing a house and needs to finance a $195,000 mortgage from the bank with an annual percentage rate (APR) of 5.
Airida [17]

Answer:

  a) payment: $1082.84

  b) interest: $194,822.40

Step-by-step explanation:

The monthly payment on the mortgage can be found using the given formula with the given values of principal (P=195000), interest rate (r=0.053), and time period (t=30). The value of n is 12, corresponding to the number of months in a year.

<h3>a)</h3>

The monthly payment is ...

  k=\left(1+\dfrac{r}{n}\right)^{nt}=\left(1+\dfrac{0.053}{12}\right)^{12\cdot30}\approx 4.88661119\\\\\text{monthly payment}=\dfrac{P\cdot\dfrac{r}{n}\cdot k}{k-1}=\dfrac{195000\cdot0.0044166667\cdot4.88661119}{4.88661119-1}\\\\\boxed{\text{monthly payment}=\$1082.84}

__

<h3>b) </h3>

The interest owed is the difference between the total of monthly payments and the principal of the loan:

  interest owed = (360)(1082.84) -195000 = 194,822.40

The interest owed over 30 years is $194,822.40.

3 0
2 years ago
If a bolt of fabric measuring 20 yards 8 inches is divided into 26 equal parts. how long is each section?
Troyanec [42]
1 yd = 36 inches....so 20 yds = 20*36 = 720 inches....+ 8 inches = 728 inches

728 / 26 = 28 inches....<==each section is 28 inches
6 0
3 years ago
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