Answers
Answer:
20
Step-by-step explanation:
Because this angle is 90 and we have 70
Related Questions
Solve the system using substitution.
X + 2y = -6
6x + 2y = 4
([?], [ ]
Answers
Answer:
Step-by-step explanation:
Rearrange x+2y=-6 to solve for x:
x = -2y-6
substitute -2y-6 for x into the second equation:
6x + 2y = 4
6(-2y-6) + 2y = 4
-12y-36 + 2y = 4
-10y = 40
y = -4
x = -2y-6 = 2
(x,y) = (2,-4)
The solution for the system of equations is (2,-4).
The given system of equations are x + 2y = -6-----(1) and 6x + 2y = 4-----(2).
How do solve systems of equations using the substitution method?To solve a system of equations using substitution:
Step 1: Isolate one of the two variables in one of the equations.Step 2: Substitute the expression that is equal to the isolated variable from Step 1 into the other equation. This should result in a linear equation with only one variable.Step 3: Solve the linear equation for the remaining variable.Step 4: Use the solution of Step 3 to calculate the value of the other variable in the system by using one of the original equations.Now, rearrange x+2y=-6 to solve for x:
So, x = -2y-6
Substitute -2y-6 for x into the second equation 6x + 2y = 4.
That is, 6(-2y-6) + 2y = 4
⇒-12y-36 + 2y = 4
⇒-10y = 40
⇒y = -4
By substituting y = -4 in x = -2y-6 we get x=2.
Therefore, the solution for the system of equations is (2,-4).
To learn more about the system of equations visit:
https://brainly.com/question/21620502.
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1. Kenny is drawing the outside lines
on a sports field that is 92 feet by
124 feet. What is the total length of
the line he will draw to surround the
field?
Answers
What is 3/10% in fraction form?
Answers
Answer:
im pretty sure its 3/10
Step-by-step explanation:
Please help1
An observer is watching a bird from the ground as shown. What is the bird's distance from the ground, in miles, as shown in the diagram? Round to the nearest tenth.
Answers
Answer:
? = 1.5 miles
Step-by-step explanation:
?^2 + 1.2^2 = 1.9^2
? = 1.473
The distance of bird from the ground is 1.47 miles.
What is a right angle triangle?A right-angled triangle is a triangle, that has one of its interior angles equal to 90 degrees or any angle is a right angle.
In the given diagram,
The distance between observer and bird = 1.9 miles,
And the distance from observer to the ground = 1.2 miles.
Let the distance of bird from ground is h miles.
To find the distance of bird from ground,
Use Pythagoreans theorem,
(1.9)² = (1.2)² + h²
3.61 = 1.44 + h²
3.61 - 1.44 = h²
2.17 = h²
h = 1.473 miles
The distance of bird from the ground is 1.47 miles.
To know more about Triangle on :
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Omar Has a gift card for 25$ at a clothing store. He wants to buy socks that cost 4$ per pair. He also has a coupon for 5$ off his entire purchase. Omar wants to know how many pairs of socks he can buy.
Let p be the number of socks Omar buys. Write an inequality that represents the situation.
Answers
Answer:
he can buy 7 pairs of socks
Step-by-step explanation:
4 times 7 = 28
28 - 5 (coupon) = $23
To graph the equation 2x + 5y = 10, Zeplyn draws a line through the points (5, 0) and (0, What is the slope of the line represented by 2x + 5y = 10?
Answers
Answer: -2/5
Step-by-step explanation:
To find the slope, we set the function use y = mx + b forms.
2x + 5y = 10
5y = -2x + 10 Minus 2x in both side
y = -2/5x + 10/5 Divide 5 from both side
y = -2/5x + 2
In the y = mx + b, the m before variable x is always the slope, so -2/5 is the slope for 2x + 5y = 10.
Pls help extra points and mark brainlist
Answers
Answer:
B.
Hope that helps!
Step-by-step explanation:
Answer:
The second one.
Step-by-step explanation:
Because it is has an equal sign, that you can solve x for.
Hope this helps! Have a good rest of you day!
Due Now
How do matter and energy move through an ecosystem?
Answers
Step-by-step explanation:
How Matter Moves Through Ecosystems
Decomposers release nutrients when they break down dead organisms. The nutrients are taken up by plants through their roots. The nutrients pass to primary consumers when they eat the plants. The nutrients pass to higher-level consumers when they eat lower-level consumers. When living things die, the cycle repeats.How Energy Moves Through Ecosystems
Energy is transferred between organisms in food webs from producers to consumers. The energy is used by organisms to carry out complex tasks. The vast majority of energy that exists in food webs originates from the sun and is converted (transformed) into chemical energy by the process of photosynthesis in plants. A small proportion of this chemical energy is transformed directly into heat when compounds are broken down during respiration in plants. The majority of the chemical energy stored in plants is transformed into other forms by an assortment of consumers, such as cows, rabbits, horses, sheep, caterpillars, and other insects eating plants.Fran can type 297 words in 5.5 minutes. What is her typing speed in words per minute?
Answers
Answer:
54 word per minute
Step-by-step explanation:
Hope this helps!! :)
hii they asked this again but in cm
Answers
Answer:
9 + 9 + 3 + 3 = 24
P = 24 cm
9 x 3 = 27
A = 27 square cm
(I think those are the answers, hope it helps <3 )
Can anyone help me I really need it
Answers
The price of a 9-minute phone call is $1.35. What is the price of an 11-minute phone call?
Answers
Answer:
$1.65
Step-by-step explanation:
[tex]\frac{1.35}{9}[/tex] = $0.15 per 1 min
11 x $0.15 = $1.65
Answer:
Its .15$ for 1 minute so for 11 minute it is 1.65$
Step-by-step explanation:
1.35/9=.15
.15*11=1.65
Hope this helps :)
The function g(x) is defined as shown.
StartLayout enlarged left-brace 1st row 1st column 3x minus 2, 2nd column negative 4 less-than-or-equal-to x less-than negative 2 2nd row 1st column negative x minus 1, 2nd column negative 2 less-than-or-equal-to x less-than 1 3rd row 1st column 6, 2nd column 1 less-than-or-equal-to x less-than-or-equal-to 3 EndLayout
What is the value of g(0)?
−2
−1
3
6
Answers
Answer:
B:-1
Step-by-step explanation:
Just took test 2021
Answer:
Step-by-step explanation:
The given function is a piecewise function with characteristics that vary with the value of x.
Please find attached the graph of h(x).
Reasons:
The given information is presented as follows;
From the above piecewise function, we have;
For x ≤ 0, the slope of the graph of h(x) =
For 0 < x ≤ 3, the slope of the graph of h(x) =
For x ≥ 4, the slope of the graph of h(x) =
Therefore, as we progress from left to right, the slope of h(x) increases and
the slope of the graph becomes steeper.
The graph of h(x) is plotted with the given equations using MS Excel as
shown in the attached diagram.
Who knows how to do this please i need help I don’t understand
Answers
Answer:
9,4,0,1
Step-by-step explanation:
They give you different values for the X so all you have to do is plug in the X to the different equations
Help !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Find the angle of elevation to the sun given that a 7.6 meter flagpole casts an 18.2 meter shadow on the ground.
Quick Answer please!!!!
Answers
Answer:
22.7
Step-by-step explanation:
Okay so the situation given shows a right triangle with the two sides being 7.6 and 18.2. So we can find the angle of elevation using tangent, which is tan-1*7.6/18.2. I got 22.66 so 22.7
Although bats are not known for their eyesight, they are able to locate prey (mainly insects) by emitting high-pitched sounds and listening for echoes. A paper gave the following distances (in centimeters) at which a bat first detected a nearby insect. 24 41 25 68 53 83 43 63 56 34 45 A button hyperlink to the SALT program that reads: Use SALT. (a) Calculate the sample mean distance at which the bat first detects an insect. (Round your answer to four decimal places.) 48.6364 cm (b) Calculate the sample variance and standard deviation for this data set. (Round your answers to four decimal places.) Variance Standard deviation
Answers
Answer:
[tex]Mean = 48.6364[/tex]
[tex]s^2 = 331.8545[/tex] -- Sample Variance
[tex]s = 18.2169[/tex] --- Sample Standard Deviation
Step-by-step explanation:
Given
[tex]n = 11[/tex]
[tex]Data: 24, 41 ,25 ,68 ,53 ,83 ,43 ,63 ,56 ,34 ,45[/tex]
Solving (a): The sample mean
[tex]Mean = \frac{\sum x}{n}[/tex]
So:
[tex]Mean = \frac{24 +41 +25 +68 +53 +83 +43 +63 +56 +34+ 45}{11}[/tex]
[tex]Mean = \frac{535}{11}[/tex]
[tex]Mean = 48.6364[/tex]
Solving (b): Sample variance (s^2)
This is calculated as:
[tex]s^2 = \frac{\sum (x - \bar x_i)^2}{n - 1}[/tex]
Where:
[tex]\bar x = 48.6364[/tex]
So:
[tex]s^2 = \frac{(24 -48.6364)^2 +(41 -48.6364)^2 +......................+( 45 -48.6364)^2}{11-1}[/tex]
[tex]s^2 = \frac{3318.54545456}{10}[/tex]
[tex]s^2 = 331.8545[/tex]
Solving (c): Sample Standard Deviation (s)
This is calculated as:
[tex]s = \sqrt {s^2[/tex]
[tex]s = \sqrt{331.8545[/tex]
[tex]s = 18.2169[/tex]
Select the equation that represents the question.
0.8% of 150 is what number?
O 0.008 = a × 150
O a = 0.008 X 150
O 150 = a × 0.008
13
O 0.008 = 150 x a
Solve the equation.
a
Answers
Answer:
[tex]a = 0.008 * 150[/tex]
Step-by-step explanation:
Given
[tex]0.8\% * 150[/tex]
Required
Represent as an equation
Let a be the result of the equation.
So, we have:
[tex]0.8\% * 150 = a[/tex]
Express 0.8% as decimal
[tex]0.008 * 150 = a[/tex]
Rewrite
[tex]a = 0.008 * 150[/tex]
An orange juice container starts with 6 7/8 cups of juice. How much orange juice is left after three 1 1 /4-cup servings are poured? WHO EVER HELPS WILL GET BRAINLIEST.
Answers
Answer:
answer is 3 1/8
Step-by-step explanation:
In the picture is what my teacher did.
In January, the depth of a lake was 902 feet. In August, the depth of the lake was 721.6 feet.
What is the percentage decrease of the depth of the lake from January to August?
A.
80%
B. 25%
C. 20%
D. 24%
Answers
902 x 20% = 180.4
Answer = C. 20% decrease of depth
Hope this helps!!
At Kirby Middle School, some students were surveyed to see which social media app they used the most. The results are shown below.
App
Number of Students
Face
8
Snap
22
Insta
20
Solve and explain how to calculate what percent of students used Snap the most?
In your explanation, be sure to:
Explain how you would set up and solve the problem (scale factor or cross multiply/divide).
Identify the part, the whole, and the percent in your explanation.
Use precise mathematical language and detail in your explanation.
Answers
Answer:
She is using fame and GO TO HELL.
Step-by-step explanation:
Consider the expressions show below, please help me!
Answers
Answer:
(3x² - 6x + 11) - (10x² - 4x + 6) is equivalent to expression -7x² - 2x + 5
(-3x² - 5x - 3) - (-10x² - 7x + 2) is equivalent expression to 7x² + 2x - 5
(12x² + 6x - 5) - (5x² + 8x - 12) is equivalent expression to 7x² - 2x + 7
Step-by-step explanation:
✔️(3x² - 6x + 11) - (10x² - 4x + 6)
Open the bracket by applying the distributive property
3x² - 6x + 11 - 10x² + 4x - 6
Add like terms
-7x² - 2x + 5
Therefore:
(3x² - 6x + 11) - (10x² - 4x + 6) is equivalent to expression -7x² - 2x + 5
✔️(-3x² - 5x - 3) - (-10x² - 7x + 2)
Apply distributive property
-3x² - 5x - 3 + 10x² + 7x - 2
Add like terms
7x² + 2x - 5
Therefore:
(-3x² - 5x - 3) - (-10x² - 7x + 2) is equivalent expression to 7x² + 2x - 5
✔️(12x² + 6x - 5) - (5x² + 8x - 12)
12x² + 6x - 5 - 5x² - 8x + 12
Add like terms
7x² - 2x + 7
Therefore:
(12x² + 6x - 5) - (5x² + 8x - 12) is equivalent expression to 7x² - 2x + 7
The triangles shown are similar. Which side of triangle JGH corresponds to side PM of triangle PMO?
Triangle G H J. Side G H is 9 centimeters, H J is 12 centimeters, J G is 6 centimeters. Triangle P M O. Side P M is 3 centimeters, M O is 4.5 centimeters, O P is 6 centimeters.
GH
JG
HJ
OP
Answers
Answer:
The corresponding side is JG
Step-by-step explanation:
Given
JGH similar to PMO
Required
Determine the similar side to PM
To do this, we follow the naming convention of both triangle name, since there is no attachment to support the given parameters.
So:
By comparison: The corresponding side is JG
Answer:
B aka JG
Step-by-step explanation:
right on edge
Simplify 8+5h-2+h-10+3h
Answers
Answer:
-4+7h
Step-by-step explanation:
Answer:
9h-4
Step-by-step explanation:
8+5h-2+h-10+3h
-4+5h+h+3h
Does a triangle with the side lengths exist 11, 28, 16
Answers
Answer:
No; The sum of the lengths of any two sides of a triangle must be greater than the length of the third side.
Step-by-step explanation:
Plz Work out -1x(6x-8)=
Answers
= -x(6x - 8)
= -x(6x) - x(-8)
= -6x^2 + 8x
can you guys explain this
Answers
Answer:
basicly the -6 is the x and the 5 is the y
but the h is 7.8
Step-by-step explanation:
Carmel rode his horse 1,600 meters east from his house. Then he turned north and rode 1,200 meters, as shown in the diagram below. How far away, in meters, is Carmel from his house?
Answers
Answer:
2,800
Step-by-step explanation:
Just add 1,600 and 1,200 I think. I could be wrong good luck :)
N - 5 x4 pls hellpppo
Answers
Answer:
n-20 is your answer ☺️☺️☺️
Answer:
N-20 is the answer if your trying to simplify it, if not comment on this answer and ill try to help
Step-by-step explanation:
can somebody help me?
Answers
Answer:
Yup ur answer is 20.5 ounces
Step-by-step explanation:
since there's an additional 2.25 ounces every second I multiplied 2.25 by 4
2.25•4=9
9 ounces added to the beginning 11.5 ounces equals 20.5 ounces that are now in the bowl
hope this helps <3
Solve the equation 3^x+3=5
Answers
3*x=2
X=0.67
Sorry if wrong but hope this helps.