Answer:
3.7
Step-by-step explanation:
4x + y = 7
- x - y = 2
If (x, y) is the solution to the given system of equations, what
is the value of x?
a) -8
b) 26
c) -5
d) 3
When instructed to find the length of HJ in right
triangle HJG, Alex wrote the equation
HJ
HJ
sin 28° = while Marlene wrote cos 62°
20
20
Are both students' equations correct? Explain
why.
H
+
20
28
O
G
See attachement for the diagram of the triangle
Answer/Step-by-step explanation:
To find the length of HJ, we can use different equations as follows:
✔️Recall: SOHCAHTOA
Let's take <G as the reference angle = 28°
Opposite side to reference angle = HJ
Hypotenuse = 20
Apply SOH.
Thus:
Sin 28° = opp/hyp
Sin 28° = HJ/20 (Alex's equation is correct).
Solving further, we would have:
HJ = Sin 28 * 20 ≈ 9.4
✔️Another way is by using <H as the reference angle.
m<H = 180° - (90° + 28°) (sum of triangle)
m<H = 62°
Adjacent side to reference angle (<H) = HJ
Hypotenuse = 20
Apply CAH:
Cos 62° = Adj/Hyp
Cos 62° = HJ/20 (Marlene's equation is correct)
Solving further, we would have,
HJ = Cos 62° * 20 ≈ 9.4
As you can see, the equation of both students are correct. Both would arrive at the same answer using any of the two equations.
I needs your helps please :) ty
Answer:
so the answer could either be
Yes. as elevation increases, the temp decreases
but..
there is also no trend coz the points are scattered i.e the temp
as the elevation is increasing the temp does vary.
so My final answer would be no, there is not a trend
PLEASE ANSWER THE QUESTION IN THE IMAGEEEEE
Answer:
=1/2 (2) (1/3)
Step-by-step explanation:You have to find the size of the sides using the intersecting lines and then multiply L*W
Answer:
1/2 (2) 1/3
Step-by-step explanation:
trust me broo
Someone please help will mark as brainliest
Answer:
c:88
Step-by-step explanation:
The angle that measures 92 degrees and the angle with the question mark are supplementary angles which mean their sums make up 180 degrees because they are on a line. So 180 degrees - 92 degrees = 88 degrees.
Estimate the circumference of the circular base of the object. Round to the nearest hundredth if necessary.
D battery with radius 0.65 in.
circumference: ___ in.
Answer:
4.09
Step-by-step explanation:
Circumference=
[tex]2\pi \times r[/tex]
The circumference of the circular base of the object is 4.082 in
What is circumference?The circumference is the length of any great circle, the intersection of the sphere with any plane passing through its center.
Given that, we need to find the circumference of the circular base of the object, whose radius is 0.5 in
The circular object is referred as circle, the circle's circumference is its boundary length measured in unit whose power is always 1, like m, cm, km etc.
Here, if we calculate the circumference of the object, we will get,
The circumference of any circular object given by :-
C = 2π×radius
C = 2×3.14×0.65 = 4.082 in
Hence, the circumference of the circular base of the object is 4.082 in
Learn more about circumference, click;
https://brainly.com/question/28757341
#SPJ6
This week is just one of the 40 weeks that you
spend in the classroom this school year. Convert
the fraction 1/40 to decimal form.
Find the surface area and volume of each figure round your answer to the nearest 10th if necessary
Answer:
13
Step-by-step explanation:
A mattress store is having a sale all mattresses are 30% of. Nate wants to know the sale price of a mattress that is regularly $1,000
Answer: $700
Step-by-step explanation:
The store is selling at 30% off.
If a mattress is $1,000, first find out what 30% of $1,000 is:
= 1,000 * 30%
= $300
The store is selling 30% off, this means that they are reducing the price by 30%:
= 1,000 - 300
= $700
-16(c-4)-12c+80 ( simplify each expression
Answer:
-28c+144
Step-by-step explanation:
if you simplify -16(c-4)-12c+80
it equals -28c+144
Explanations:
Distribute
-16(c-4)-12c + 80 ---> -16c + 64 - 12c +80
Add the numbers
-16c+64-12c+80 ---> -16c+144-12c
Combine like terms
-16c+144-12c
-28c+144
Abigail read 42 1/2 pages in 1 2/3 hours. At what rate, in pages per hour, did she read?
Answer:
Pages Time(hours)
[tex]\frac{85}{2}[/tex] [tex]\frac{5}{3}[/tex]
[tex]x[/tex] [tex]1[/tex]
[tex]x*\frac{5}{3} = \frac{85}{2} *1\\\\x = \frac{85*3}{5} = 17*3 = 51 \ pages[/tex]
Using the digits 1-9 once only fill in the blanks so that you can multiply each column and row to get the answer given on the side.
Answer:
7 4 9
5 6 1
3 2 8
Step-by-step explanation:
..........................
Answer:
7 4 9
5 6 1
3 2 8
Hope this helps!
FIND THE SIDES BRAINLIEST AND POINTS
Answer:
Look at the image.
Step-by-step explanation:
C = 2πr
2 · π · 5
≈ 31.42
31.42 ÷ 4 = 7.855
whats the length of d
Which of the following statements is false?
Answer:
i think the second answer??
Step-by-step explanation:
NEED HELP ASAP, WILL GIVE BRAINLIEST
The entire graph of the function f is shown in the figure below. Write the domain and range of f using interval notation.
[tex]\frac{x+1}{x-4} -\frac{x+1}{x^{2} ^}-7x+12[/tex]
At a larger pizza party, there are 18 people. Each person wants 3 slices, and each pizza has 8 slices. How many pizzas should they order?
Answer:
7 pizzas
Step-by-step explanation:
18 people × 3 slices each = 54 slices
54 ÷ 8 = 6.75
7 pizzas
Answer:
They should order 7 pizzas.
Step-by-step explanation:
18 people x 3 slices per person = 54 slices you will need for everyone
54 slices divided by 8 = 6.75 pizzas.
Round 6.75 to 7 pizzas.
They should order 7 pizzas because you cannot ask the pizza place for 6.75 pizzas.
HELP PLEASE!! BRAINLIST IF CORRECT
adriana thinks the measure of angle CBE is 70 degrees.
Lila thinks the measure is 68 degrees.
Who is correct?
Adriana
Lila
Explain your thinking
BRAINLIST if correct
Answer:
Adriana is correct
Step-by-step explanation:
if you get rid of E, it is a 90 degree angle. so:
90-20=70
which is Adriana's answer
connie sells lemonade for $0.25 per small cup and $0.75 per large cup. if she sells 20 small cups how many large ones must she sell?
Answer:
Not accomplishable.
Step-by-step explanation:
Could you please stucture this question more simply. This partly doesn't make sense, unless I am wrong.
Drag the movable points to the correct position on the number line.
Plz i need help and asap plus work pls and no files
Answer:
25%
Step-by-step explanation:
so out of 32 marbles, 8 of them are red. This means the rest are blue which is 24 blue. To make a percentage, all you do is make a fraction. out of 32, 8 were red so 8/32. Fractions are basically division so 8/32 is 0.25. This means 25%.
Naneth deposited php1. 200in a savings account that pays 4%interest in 1 year. How much interest will her money earn in a year?
Answer: 8
Step-by-step explanation:
Given
Money deposited [tex]P=200[/tex]
Interest rate [tex]R=4\%[/tex]
Time period [tex]T=1\ yr[/tex]
For a year simple and compound interest is the same
[tex]\therefore \text{Interest}=\dfrac{P\times R\times T}{100}\\\\\Rightarrow \text{Interest}=\dfrac{200\times 4\times 1}{100}\\\\\Rightarrow 8[/tex]
Thus, interest earned is 8 units
How can you tell when a variable is a
perfect square?
Answer:
hope this helps
Step-by-step explanation:
If a variable with an exponent has an even exponent then it is a perfect square. To get the square root, we simply divide the exponent by 2. For example x8 is a perfect square, its square root is x4
PLEASE HELP. ILL GIVE BRAINIEST (if i see links i get ur account banned)
Answer:
0, -2
Step-by-step explanation:
Can I have brainliest? I hope this helped and have a nice day!
Answer:
(-1, -5)
Step-by-step explanation:
please answer if you are able to see my picture. thanks:•)
Answer:
in 5 weeks i think
Step-by-step explanation
I added 300+20 5 times. Same with the 250
Answer:
5
Step-by-step explanation:
to vick = W1 = 300 + 20 x ( 1 )
to anya = W2 = 250 + 30 x ( 2) Both 1 and 2 ( simulataneous )
When W1 = W2
300 + 20 x = 250 + 30 x
10 x = 5
so they need 5 months
A shirt was sold for 31.99 after a markup price of 15% markup. What was the original price?
Answer:
27.82
Step-by-step explanation:
make a proportion
31.99/115 = x/100
123456762123456787654321`4567898 x 1
whats the answer
Answer:
123456762123456787654321`4567898
Answer:
123456762123456787654321`4567898
Step-by-step explanation:
Please help!! Thank you !!
Answer:
55 degrees
Step-by-step explanation:
Angle ACE and BDE are congruent so segments AC and BD are parallel. That makes angles CAE and DBE congruent.
6x - 15 = 5x - 1
x - 15 = -1
x = 14
So, the measure of angle BDE = 4x = 56 degrees. The measure of angle DBE = 5x - 1 = 69 degrees.
The total of all angles in triangle BDE is 180 degrees, so the measure of angle E = 180 - 56 - 69 = 55
which turn best describes a mathematical statement
Answer:
The correct answer is: D Conditional Statement. Explanation: A conditional statement is a statement in "if, then" form. This statement is "If A, then B." This makes it a conditional statement
Step-by-step explanation: