Answers
y=5
x=30
Explanation: since all 3 angles of triangles are marked equal we can see that it is equilateral which means 8y=40 so y=5. Then we can find that the other triangle is an 120 30 30 triangle thus x is 30. You can also do this if you can see straight away that the big triangle is a 30-60-90 triangle and just use 90-60.
Related Questions
if a polynomial has one root in the form a+√b , it has a second root in the form of a_√b
Answers
Answer:
(a - √b)
Step-by-step explanation:
Roots occur as positive and negative conjugates. Therefore, the conjugate of (a + √b) is (a - √b)
19x/x+9 =x+9/x find x
Answers
Answer:
X=.5
Step-by-step explanation:
First, I rewrite the equation:
[tex]\frac{19x}{x+9}[/tex]= [tex]\frac{x+9}{x}[/tex]
Next, Cross Multiply:
19x times x is 19x^2
x+9 times x+9 equals (x+9)^2
Write the Formula Again, Revised:
19x^2=(x+9)^2
Square Root Both Sides:
19x=x+9
Subtract x from both sides:
18x=9
Divide Both Sides by 18:
X=.5
.5 is the answer
i hope this helps!
Please Give ,e feedback (or brainliest) to let me know if im right!
What is the unit rate for this?
Time: 1, 2, 3, 4
Amount: 0.6, 1.2, 1.8, 2.4
Answers
Answer:
1:0.6
Step-by-step explanation:
If the 2nd number in the sequence is 6 and the 6th number is 486. Find the common ratio r
Answers
There are 3 numbers in the sequence between 2 and 6 (3,4 and 5)
So you cube root 81 to get 3 as the common ratio.
1. The average attendance at a local high school this year was 950
students. Each year the attendance decreases at a rate of 0.5% per year.
What will the average attendance be in three years? *
Answers
100% - 0.5% = 99.5% or 0.995
One year: 950 x 0.995 = 945.25 or 945 students
Two years: 945 x 0.995 = 940.5 or 941 students
Three years: 941 x 0.995 = 935.8 or 936 students :)
A path 5m wide is to be built along the border and inside a square garden of side 90m. Find the cost of cementing the path at the rate of Rs.10 per meter square.
Answers
Answer:
Total cost of cementing the path = Rs. 17,000.
Step-by-step explanation:
Let the square garden be ABCD
Let the region inside the garden (ABCD) be WXYZ.
Given the following data;
Length of sides of ABCD = 90m
Width of path = 5m
Cost = Rs. 10 per m²
Area of ABCD = 90 * 90
Area of ABCD = 8100m²
To find the area of WXYZ;
WX = WZ = 90 - (5 + 5)
WX = WZ = 90 - 10
WX = WZ = 80m
Area of WXYZ = WX * WZ
Substituting into the equation, we have;
Area of WXYZ = 80 * 80
Area of WXYZ = 6400 m²
Area of path = Area of ABCD - Area of WXYZ
Area of path = 8100 - 6400
Area of path = 1700 m²
Total cost of cementing the path = Area of path * cost
Total cost of cementing the path = 1700 * 10
Total cost of cementing the path = Rs. 17,000
Kate has some dimes and quarters. If she has 23 coins worth a total of $3.50, how many of each type of coin does she have?
Answers
23=d+q, d=23-q
350=10d+25q, using d from above
350=10(23-q)+25q
350=230-10q+25q
120=15q
q=120/15
q=8, and since d=23-q
d=23-8=15
So there are 15 dimes and 8 quarters
Solve for "T" in the following formula: P= NRT/V
Answers
Answer:
T = PV / NR
Step-by-step explanation:
Judith made 4 stacks of wooden blocks. The first stack was 9 blocks tall. The second stack was 5 blocks taller than the first. The third stack was 5 blocks shorter than the second stack, and the last stack was 10 blocks taller than the third stack. How many blocks did Judith use in all?
Answers
Answer: the answer is 42
What additional information must be known to prove the triangles similar by SAS?
Answers
Answer:
We must know what DF and JK are.
Step-by-step explanation:
SAS similarity is when two sides are proportional and the corresponding angles are congruent.
K and F are congruent (A)
KL and GF seem to have a proportion of 5/6 or 6/5 (S)
We need the other S to prove SAS.
I need this solved please.
Answers
Answer: 4 quizzes each week
Step-by-step explanation: all you have to do it divide the numbers like 12 divided by 3 would be 4
Jake’s water bill is $24.80 per month plus $2.20 per ccf (hundred cubic feet) of water. What is the maximum number of ccf Jake can use if he wants his bill to be no more than $60?
Answers
Answer:
60-24.80=35.20
35.20/2.20=16
16ccf
Step-by-step explanation:
Help I don’t know the answer
Answers
Answer:
the last one
Step-by-step explanation:
the input cannot be negative
Which statements describe the graph of 2 8/9 ≥ x on a number line? Select three options.
Answers
Answer:
✔️The graph contains point zero
✔️There's a closed circle on 2⁸/9
✔️The arrow points to the left
Step-by-step explanation:
The inequality, 2⁸/9 ≥ x, implies that 2⁸/9 is either equal to x or more than x. In other words, the highest value of x is 2⁸/9. Possible value of x is equal to or less than 2⁸/9.
This, on a number line, we would graph the information as follows:
✔️The graph contains point zero
Rationale: point zero is less than 2⁸/9
✔️There's a closed circle on 2⁸/9
Rationale: this indicates 2⁸/9 is included in the possible value of x
✔️The arrow points to the left
Rationale: possible value of x ranges from 2⁸/9 and below.
Answer: b c d
Step-by-step explanation:
heart it please ;) your welcome
Elliot packed unit cubes into a prism, as shown. Which statement about the volume of the prism is true?
Answers
Answer:
The volume of the prism is 36 cubic units.
Step-by-step explanation:
I got it right. Hope this helps!
Whats is the distance between the ferris wheel and the merry-go-round? Ferris wheel on the coordinate plane is (-9,6) and the location of the merry-go-round is (10,6)
Answers
Answer:
19 units
Step-by-step explanation:
use distance formula: d = [tex]\sqrt{(x_2-x_1)^{2}+(y_2+y_1)^{2}}[/tex]
x₂ = 10
x₁ = -1
y₂ = 6
y₁ = 6
now plug in
[tex]\sqrt{(10-(-9))^{2}+(6-6)^{2}}\\= \sqrt{19^{2}+0^{2}\\}\\= \sqrt{361}\\= 19[/tex]
A fair charges an admission fee of 3 dollars for each person. Let c be the cost of admission in dollars for p people wrote an equation relating c to p graph your answer
Answers
Answer:
c = 3p
graph is in the image attached
Step-by-step explanation:
The weight of any cat in the local animal shelter is no more than 16 pounds. Let w be the weight in pounds of a cat in the shelter. Write inequality that means weight of no more than pounds .
Answers
Answer:
16 >_ w ( a line under >)
Step-by-step explanation:
Inequalities help us to compare two unequal expressions. The inequality that means the weight of a cat is no more than 16 pounds is 16>w.
What are inequalities?Inequalities help us to compare two unequal expressions. Also, it helps us to compare the non-equal expressions so that an equation can be formed.
It is mostly denoted by the symbol <, >, ≤, and ≥.
Given that the weight of any cat in the local animal shelter is no more than 16 pounds. Now, w be the weight in pounds of a cat in the shelter. Therefore, the inequality that means the weight of a cat is no more than 16 pounds is 16>w.
Learn more about Inequality:
https://brainly.com/question/19491153
#SPJ2
Someone please help me I’ll give out brainliest please dont answer if you don’t know
Answers
Answer:
$56.10
Step-by-step explanation:
Answer:
$8.50
Step-by-step explanation:
Please help
look at picture
supplementary angles
Answers
Answer:
x=56
Step-by-step explanation:
(2x-3)degrees+71 degrees=180 degrees because they are supplementary angles
This simplifies to 2x+68=180 because -3+71 is 68.
2x+68=180
2x=180-68
2x=112
x=112/2
x=56
It is estimated that each guest at a party will eat
3/5
pounds of chocolates. How many guest can be
served with 9 pounds of chocolate?
Answers
Work:
9/(3/5) = 15
Check work:
15*3/5= 9
The measure of an angle is 44°. What is the measure of its complementary angle?
Answers
9.
A line has equation 6x + 2y + 9 = 0
(a) Find the gradient of the line.
(b) Find where the line crosses the y-axis
Answers
Please answer this 7th grade math question for me please. =) here are the photos
Answers
Answer:
Just please, I don't understand this at all!!!
Step-by-step explanation:
Write the equation of the line in fully simplified slope-intercept form???
Answers
Answer:
[tex]y = - \frac{4}{5} x + 3[/tex]
Step-by-step explanation:
[tex]b = 3[/tex]
[tex] - 2 = 4a + 3[/tex]
[tex]a = - \frac{4}{5} [/tex]
b.) -1, 6, -36, ....
Answers
108, -648, 3888
Pattern: multiply by -6
Jill is shopping at a department store that is having a sale this week. The store has advertised 15% off certain merchandise. Jill calculates the sales price by multiplying the regular price by 15% and then subtracting the amount from the regular price:SP = RP - 0.15(RP), where S = sales price and R = regular price. Find a simpler way for Jill to calculate the sales price as she shops.
Will mark brainliest please show your work
Answers
Answer:
The simpler way is:
SP = 0.85*RP
Step-by-step explanation:
Suppose that we have a given amount A. and now we take a given percentage, X%, off.
The new amount will be:
New amount = A - (X%/100%)*A = A*(1 - X%/100%)
This is the general formula.
In this case, we know that the store has advertised 15% off, then we have X% = 15%
Then if:
SP = sales price
RP = regular price
We will have the equation:
SP = RP - (15%/100%)*RP = RP - 0.15*RP
This is what Jill found, but if we use the general equation above, we will find that:
SP = RP*(1 - 15%/100%) = RP*(1 - 0.15) = RP*0.85
So we just need to multiply the regular price by 0.85 to get the sales price.
Answer:SP= 0.85RP
Step-by-step explanation:
i had this question i got it right :)
what is the value of 2/3 the power of 3
Answers
Answer:
The answer is 2 hope this helped!
Step-by-step explanation:
4. A rectangular strip of aluminum, 30 cm long and 10 cm wide, is rolled into the form of a cylinder.
Which would have the greater volume, a cylinder 10 cm high with circumference of 30 cîn or a cylinder
30 cm high with circumference of 10 cm?
Answers
Answer:
A cylinder 10 cm high with a circumference of 30 cm would have a greater volume
Step-by-step explanation:
Volume of a Cylinder
Given a cylinder of radius r and height h, the volume is calculated as:
[tex]V=\pi r^2h[/tex]
It's given a rectangular strip of aluminum 30 cm long and 10 cm wide. If we roll it to form a cylinder we can do it in two ways.
Rolling it across its length will make the cylinder have a height of h=10 cm and the circumference of the base equal to 30 cm.
The circumference of a circle of radius r is:
[tex]C=2\pi r[/tex]
Thus the radius is:
[tex]\displaystyle r=\frac{C}{2\pi}[/tex]
[tex]\displaystyle r=\frac{30}{2\pi}=\frac{15}{\pi}[/tex]
Thus the volume of the cylinder is:
[tex]V=\pi ( \frac{15}{\pi})^2*10[/tex]
[tex]V=\pi ( \frac{225}{\pi^2})*10[/tex]
[tex]V= \frac{2250}{\pi}[/tex]
If we rolled the strip across its width, then the height will be h=30 cm and the circumference C=10 cm, thus the radius is:
[tex]\displaystyle r=\frac{10}{2\pi}=\frac{5}{\pi}[/tex]
And the volume is:
[tex]V'=\pi ( \frac{5}{\pi})^2*30[/tex]
[tex]V'=\pi ( \frac{25}{\pi^2})*30[/tex]
[tex]V'= \frac{750}{\pi}[/tex]
Dividing V/V' = 3. The first volume it 3 times as much as the second volume.
A cylinder 10 cm high with a circumference of 30 cm would have a greater volume
Can someone please help me with 13-16 it’s urgent I’m begging
Answers
Answer:
13.
100(256+347)=?
14.
100(64-36)=?
15.
Distributive and associative
example:
5( 2 + 3 ) + 4 =
16.
B
Step-by-step explanation:
