Hi there!
[tex]\large\boxed{tan45^{o} = 1}[/tex]
On the unit circle, the angle at which the x-value = √2/2 and the y-value = √2/2 is at 45°.
tan 45° = (√2/2)/(√2/2) = 1.
-7x-4y=18
y=-5x-24
solve for x and y (show work)
Answer:
ima answer it but first how do i show the work
Step-by-step explanation:
Answer:
(-6, 6)
x=-6, y=6
Step-by-step explanation:
The easiest way to solve for this is by substitution. This means substituting y with -5x-24 in the first equation. It gives you the same variables and is easy to work with.
1. Set up your equation: -7x-4(-5x-24)=18
2. Use the distribution property: -7x+20x+96=18
3. Add like terms: 13x+96=18
4. Subtract 96 from both sides: 13x=-78
5. Divide by 13 to get x alone: x=-6
Now that we have x, we can find y much easier by plugging in -6 for x.
1. Set up your equation: -5(-6)-24=y
2. Multiply: 30-24=y
3. Subtract: 6=y
Check your answers!
-7(-6)-4(6)=18
-5(-6)-24=6
There you go! Hope this helped :)
HELP PLEASE DUE IN 3 MINUTES
Answer:
No mode ???? I'm not sure
please help! I’m failing math and I never pay attention and I’m so confused on this one question if anybody cloud may I have the answer
this is the question⬇️⬇️⬇️
a snowplow driver cleared 20 streets in 55 minutes. How fast did he clear each street.
Answer:
2.75 minutes
Step-by-step
divide 55 by 20
Answer:
2.75 minutes/2 minutes and 45 seconds
Step-by-step explanation:
Divide: 55 divided by 20=2.75
2.75 minutes= 2 minutes and 45 seconds
The reason why you divide 55 divided by 20 is because you are trying to find how long it took you to clear 1 street.
And there are 20 streets and each street took you 2 minutes and 45 minutes to complete 1 street.
Hope this helped!! :)
Stay safe and have a wonderful day/night!!!!!
1. The snow pack on Mt. Hood in the Oregon Cascades was 150 inches on
January 15th. Based on data taken in previous years, the snow pack decreases
about 11 inches a week after January 15th. What would be the rate of change?
Answer:
The rate of change is 10%
Step-by-step explanation:
The computation of the rate of change is as follows:
Given that as on Jan 15, the snow pack is 150 inches
And, the last year, it would decrease by 11 inches a week after jan 15
So, the rate of change is
= 15 ÷ 150
= 10%
Plzzzzz helpppp!! I don’t understand
Answer:
The value of [tex]x[/tex] is 16.667.
Step-by-step explanation:
In this exercise, we know that the two triangles described in the figure are similar. If both are similar, the following ratio is constructed:
[tex]\frac{x}{25} = \frac{26}{39}[/tex] (1)
[tex]x = 16.667[/tex]
The value of [tex]x[/tex] is 16.667.
Find 2(6)-3 ..............................
Answer:
Its 9
Step-by-step explanation:
(2)(6)−3
=9
PLEASE HELP WITH MARK BRAINLIEST
What is the value of w?
Answer:
26
Step-by-step explanation :
73 - 47 = 26 brainliest?
Find the measure of a 6.
102
78
46 = [?]
Answer:
102°
Step-by-step explanation:
They're still corresponding angles... have you read any of these explanations?...
At a sale, Ricardo bought 24 reams of paper and 4 inkjet cartridges for $320. Britney bought 2 reams of paper and 1 inkjet cartridge for $50. The rams of paper were all the same price and the inkjet cartridges were all the same price. Write a system of equations to represent this situation. Determine the best method to solve the system of equations. Then solve the system.
Answer: 7.50 in paper and 35 in ink.
Step-by-step explanation:
HELP PLS THIS IS DUE SOON- Btw its 7th grade math
Answer:
20 salads
Step-by-step explanation:
25% = 5
55%+20%=75%
75%=15
15+5=20
Answer:
20 salads
Step-by-step explanation:
25/5 = 5
55/5 = 11
20/5 = 4
5+11+4= 20 salads
A polling organization uses random digit dialing of registered voters in a county to gauge the voters’ opinions about a ballot initiative to increase taxes that would pay for a new county park. The polling organization will investigate whether there are differences in how voters respond based on the highest level of education completed. The phone survey asked the voters contacted whether they approve or disapprove of the tax increase. The voters were also asked to indicate their highest level of education completed: high school, bachelor’s degree, or master’s degree. Which of the following is the appropriate test to investigate whether there is an association between opinion about the ballot initiative and highest level of education completed?
А. A two-sample t-test for a difference between means
B. A two-sample z test for a difference between proportions
C. A chi-square test of homogeneity
D. A chi-square test of independence A chi-square goodness-of-fittest
Answer:
Its D
Step-by-step explanation:
The word association is related to independence test
The mean age at first marriage for respondents in a survey is 23.33, with a standard deviation of 6.13. The Z score associated with a particular age at first marriage is 0.35. If the proportion of the area between this particular age at first marriage and the mean is 0.14, what proportion of respondents experienced their first marriage earlier than this age?
Answer:
42.48
Step-by-step explanation:
I don't know how to explain
Is the given value a solution of the inequality?
2 + s ≥ 10; s = 7
14 – r < 9; r = 6
j – 11 ≥ 20; j = 32
t + 6 > 40; t = 35
show work pls
Answer:
35
Step-by-step explanation:
what is twenty multiplier by
five
1/3 of 3/7
helpp I need to show the work
Answer:
1/7
Step-by-step explanation:
1/3 of 3/7 = 1/3 x 3/7
we can cancel out 3 and 3 because they are multipliers of themselves
so now it is 1/1 x 1/7 = 1/7
Or .
1/3 x 3/7 = 1x3/3x7 = 3/21 = 1/7
Select the correct expressions. Identify the equivalent expressions of 4(2x + x – 3) – 3x + 3 by substituting x = 2 and x = 3.
Answer:
I think its 4(3x – 3) – 3x, 9x + x - 9, and 9x - 1
Step-by-step explanation:
GIVING 100 PTS AFTER ITS SOLVED I WILL GIVE BECAUSE I CANT TRUST
Answer: A
Step-by-step explanation
bc it seemed legit-
Answer:
A.
Step-by-step explanation:
wish u would have got better grade
select ALL expressions that have the same value
A: 33
B: 34
C: 62
D: 63
E: 92
F: 93
Answer:
3 with the exponent on 4 and 9 with the exponent of 2 have the same value
Explain how to find 40% of a number using friendly percents
Answer:
here's your solution
=> percent means divided by 100
=> to find 40% of a number ,
=> we have to think for a number here it
is not given
=> so, we have to assume it , then let the
number be X
=> now ,. equation= 40/100*x
=> 40/100*X
hope it helps
HELP PLEASE WILL MARL BRANIEST IF right
Answer:
A bit of a doosy, but bare with me: f*g*h(x) = [tex]x^2+54x-12x\sqrt{x} -108\sqrt{x} +90[/tex]
Step-by-step explanation:
So explaining this is a bit awkward as well, but I can try...So
Starting from g(x) working that backwards into f(x), so...
g(x) = [tex]x-3[/tex]
f(x) = [tex](x^4+9)[/tex]
Take your g(x) and plug it into your f(x) into every x you see
f(g(x)) = [tex](x-3)^4+9[/tex] ~ I hope you can visualize this, but do you see how g(x) plugs into f(x)...
Now you still have one more step which you still need to include h(x), so
Remember h(x) = [tex]\sqrt{x}[/tex]
Now plug in your h(x) into every x you see from f(g(x)) and it should look like...
[tex](\sqrt{x} -3)^4 + 9[/tex]
BRAINLIEST
VOLUME OF A SPHERE
Answer:
[tex]\displaystyle V = 972 \pi \ ft^3[/tex]
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightGeometry
Volume of a Sphere Formula: [tex]\displaystyle V = \frac{4}{3} \pi r^3[/tex]
V is volumer is radiusStep-by-step explanation:
Step 1: Define
Radius r = 9 ft
Step 2: Solve for V
Substitute in r [Volume of a Sphere Formula]: [tex]\displaystyle V = \frac{4}{3} \pi (9 \ ft)^3[/tex][Volume] Evaluate exponents: [tex]\displaystyle V = \frac{4}{3} \pi (729 \ ft^3)[/tex][Volume] Multiply: [tex]\displaystyle V = 972 \pi \ ft^3[/tex]solve the equation please
=========================================================
Work Shown:
Let x = log(y+2)
The given equation becomes
4x = 3x-log(13)
Solving for x leads to
4x-3x = -log(13)
x = -log(13)
Then substituting gets us
log(y+2) = -log(13)
log(y+2) = log(13^(-1)) .... use the rule that A*log(B) = log(B^A)
log(y+2) = log(1/13)
y+2 = 1/13 ................. used the rule if log(A) = log(B), then A = B
y = (1/13) - 2
y = (1/13) - (26/13)
y = (1-26)/13
y = -25/13 .... answer is choice E
For each step, the logs are the same base. The base doesn't matter. It can be base 10 or base 2 or base e. As long as the base stays consistent is all that matters. Also, the base cannot be 1, 0 or a negative number. The base can be any other real number.
Find the area of the parallelogram. (simplify your answer)
Use Euler’s formula to write -12 sqrt3 +12i in exponential form
Should be D on edge. 24e i 5pi/6, Or
649-14-07-00-00_files/i0150005,jpg(image name)
The measure of an angle is 37.1º, What is the measure of its complementary angle?
Answer:
Step-by-step explanation:
The sum of complementary angles is 90°.
90°-37.1° = 52.9°
The frog jumped 7/8 of a foot on the first jump and 2/3 of a foot on the second
jump. How many feet did the frog jump in total?
feet
Pls show mercy!!!!!
Pllzz help me I am timed!
Answer:
prism, 6 vertices, 9 edges
Step-by-step explanation:
prism, 6 vertices, 9 edges
prism, 6 vertices, 9 edges
prism, 6 vertices, 9 edges
30% of a number is 24 write and solve a proportion to find the number
Answer:
30/100=24/x the answer is 80
Step-by-step explanation:
Answer:
i dont know but the answer is 80
Step-by-step explanation:
SOMEONE PLEASE HELP ASAP
I do not understand how to answer this and it’s very confusing.
Please help!!!!!????
Answer:
I think it's decameter^^