Answer:
is it for a test or something
Step-by-step explanation:
If the area A of a triangle is 72, and the height h is equal to the length of the base b, what is the length of the base?
A= 1/2 bh
Select one
A. 9
B. 12
C. 11
D. 5
Answer:
option B
Step-by-step explanation:
let the height=x
base=x
Area=½bh
72=½x•x
72×2=x²
144=x²
x=√144=12
Answer:
12
Step-by-step explanation:
12 x 12= 144
144/2= 72
Sarah is playing a video game that allows her to double her coins each hour. The game starts with 4 coins and Sarah plays the game for 2 hours. How many coins will she have at the end of the two hours.
Answer:
16 coins
Step-by-step explanation:
At first: 4 coins
First hour: 4 x 2 = 8
Second hour: 8 x 2 = 16
Total coins: 16 coins
Jenny has 45 tennis balls.
Sal had 20 tennis balls, but he gave 6 of them to Joe.
How many tennis balls do Jenny and Sal have now?
Answer:
45 and 14 are the correct answer
Use the figure to find the measures of the numbered angles.
∠1 = ∘
∠2 = ∘
∠3 = ∘
∠4 = ∘
∠5 = ∘
∠6 = ∘
Henry has 6/8 of a yard of fabric. He needs 1/4 of a yard to make a small pillow. How many pillows can he make?
Answer:
3
Step-by-step explanation:
6/8 is equal to 3/4.
3/4 divided by 1/4 is 3
PLEASE HELP IM FAILING MATH!!!
Factorise:
(a).125m^3+27n^3+225m^2n+135mn^2
(B). 64a^3-144a^2b+108ab^2-27b^3
Plz answer, it's urgent.
Answer:
a)(5m+3n)^3 b)(4a-3b)^3
Step-by-step explanation:
a)125m^3+27n^3+225m^2 n+135mn^2
Use the binomial cube formula, a^3+3a^2
b+3ab^2+b^3=(a+b)^3, where a=5m and b=3n.
(5m+3n)^3
b)64a^3-144a^2 b+108ab^2-27b^3
Use the binomial cube formula, p^3-3p^2q+3pq^2-q^3=(p-q)^3, where p=4a and q=3b.
(4a-3b)^3
Celeste rides her bike to work, averaging 12 miles per hour. On her way home she averages 8 miles per hour. If the total trip takes one hour, how far does she live from her work?
Answer:
c = x mi d= x mi
Step-by-step explanation:
can someone please help me and show work ?
Answer:
(1). x = 14 ; (2). 70°
Step-by-step explanation:
(1). m∠ACD = m∠A + m∠B
6x + 2 = (2x + 1) + (3x + 15)
6x - 5x = 14
x = 14
(2). m∠ABC = 180° - m∠CBD = 140°
m∠A = m∠C = 140° ÷ 2 = 70°
I DONT GET IT ill give u pointsss answerr
nine hundred nine thousandths in numeric form
Answer:
900,000
I think is the answer
If I have an equation in which x = pounds, and y = total cost, can I substitute quarts into the equation yes or no ?
Answer:
Yes you can, you just need to make x be times by 4.
Step-by-step explanation:
4 quarts in a gallon
How many solutions does the following linear equations have: 7(2+5x)=3x+14
CHARITY This year, James raised $95 for an animal shelter. This is 5
times the amount he saved. The equation 5x = 95 can be used to find last
year's fundraising amount. Find last year's fundraising amount.
Please help I have know clue what to do!!
Answer: Hi, sorry if I’m late to answering but the answer is 19
Step-by-step explanation:
You divide each number in the equation by 5. So, 5x divided by 5 = 1. We cannot use 5 divided by 5 because it will equal 1 so we ignore that and go to 95 divided by 5 = 19. Therefore, 19 is your answer!!! (Hope this helped)
Write an equation that represents the line.
Use exact numbers.
Answer:
y=3/4x+(-4.5)
Step-by-step explanation:
PLEASE HELP ASAP I WILL AWARD BRAINLIEST
Answer:
None of the Above
Step-by-step explanation:
Key Skills required are: One Variable Equations, Supplementary Angle Pairs, Substitution, and Triangles.
1) To find the measure of Angle C, we first need to find the measure of angle DBC and Angle D.
2) We are given that Angle EBA is x and Angle EBD is 4x+13 and Angle D is 3x + 9 (we will use Angle D later in the problem)
3) Now, we need to use the fact that Angle EBA and Angle EBD are supplementary (they form a linear pair, so they are supplementary).
A pair of supplementary angles add up to 180 degrees (as they form a straight angle).
4) x + 4x + 13 = 180
5) Combine like terms --> 5x + 13 = 180
6) Move 13 to the other side --> 5x = 167
7) Divide by 5 and solve for x: x= 33.4
8) Now we got that x is 33.4, we can get the measure of angle DBC and Angle D.
9) Angle DBC is congruent to Angle EBA. So to find the measure of DBC we need to find the measure of Angle EBA. EBA is just x, so it is 33.4 degrees
10) Therefore, Angle DBC also measures 33.4 degrees.
11) To find angle D, we substitute x into 3x + 9 (We are given angle D is 3x + 9 based on the problem)
12) 3(33.4) + 9 = 100.2 + 9 = 109.2
13) Now we use the interior angles sum of a triangle to find Angle C.
The interior angles of a triangle sum up to 180 degrees.
14) With the statement above we can make this equation: 109.2 + 33.4 + Angle C = 180
15) Simplify by combining like terms: 142.6 + Angle C = 180
16) 37.4 degrees would be the measure of C, so I feel it would be none of the above.
Hope you understood and have a nice day!! :D
A right triangle is formed by joining three
squares at their vertices.
Which equation can be used to find the length
of x?
Answer:
D. x² = 576 + 7²
Step-by-step explanation:
i got this correct on my homework :)
-5m - 2n when m = 6 and n = -2
Thank you!
Answer:
26
Step-by-step explanation:
If m=6, -5 times 6 is -30. -2 times -2 is 4.
-30 plus 4 is 26.
3x + 4y = 12
2x-2y = 10
Select the correct answer.
Which equation represents a circle?
Answer:
C
Step-by-step explanation: each side by 4 and you get the radius as 2 and the center at 0,0.
Answer: C
Step-by-step explanation: I got this right on Edmentum.
What is the area of the circle ?
Answer:
113.04 [tex]m^{2}[/tex]
Step-by-step explanation:
Area of a circle is π x [tex]r^{2}[/tex].
I'm assuming that you're using 3.14 as π.
Since the radius of the circle is 6 m, all you need to do is plug it in!
Area = 3.14 × [tex](6)^{2}[/tex]
Area = 3.14 × 36
Area = 113.04 [tex]m^{2}[/tex], which is the third answer choice.
Kelsea and Landon are playing in a park standing 100 feet away from each other. They both see a bird flying above them. The angles of elevation from each person to the bird are shown. How high is the bird from the ground? Round your answer to the nearest tenth. The angle for landon is 45 degrees the angle for kelsea is 20
Answer:
26.68 ft
Step-by-step explanation:
Let a represent the distance from Kelsea to the bird and b be the distance from Landon to the bird.
Let x = angle of the bird. Hence:
x + 45 + 20 = 180 (sum of angles in a triangle)
x + 65 = 180
x = 180 - 65
x = 115°
Using sine rule:
[tex]\frac{100\ ft}{sin(115)} =\frac{a}{sin(45)} =\frac{b}{sin(20)} \\\\\frac{100\ ft}{sin(115)} =\frac{a}{sin(45)}\\\\a=\frac{100\ ft}{sin(115)} *sin(45)\\\\a=78\ ft\\[/tex]
Let h = height of the bird to the ground. Since a right angle is formed. hence:
[tex]\frac{h}{sin(20)} =\frac{78}{sin(90)} \\\\h=\frac{78}{sin(90)}*sin(20)\\\\h=26.68\ ft[/tex]
Need HELP ASSAP -8/5 times -5/1
Answer:8
Step-by-step explanation: negative times negative =positive
and times 8/5 by 5/1 .
When multiplying fractions, simply multiply the numerators together and multiply the denominators together.
-8 * -5 = 40
5 * 1 = 5
-8/5 * -5/1 = 40/5
40/5 = 8
HELP PLZ DUE IN 30 MIN
A. none
B. b // c
C. a // c
D. a // b
9514 1404 393
Answer:
D. a ║ b
Step-by-step explanation:
If we figure the other angle of each linear pair, we can directly compare angles to see if corresponding angles are the same. Where they are the same, the lines are parallel.
Line a is parallel to line b.
what is two and a half added to four and a half?
Answer:
7
Step-by-step explanation:
If Ix) = -4, what are the possible values of x?
Answer:
|x|=-4 is immposible, absolute value is the distance of any number away from zero hence is it imposible for it to be a negative number
Hope this helps! :)
Quick I need helppp!!
4.7= a + 3.09; a= 0.8, 0.98, 1.61, 7.79
Answer:
1.61
Step-by-step explanation:
Just subtract 4.7 by 3.09
Find the area of the shape. Need an answer immediately.
Answer:
A= 113.1 (I rounded my answer)
Step-by-step explanation:
A=πr^2=π·6^2=113.09734
plzz answer fastt i need the answer
Doug has two German Shepherds. The
larger dog weighs 70 1/2 pounds. If the
smaller dog weighs 75% as much as the
larger dog, find the smaller dog's weight.
wait ugh i asked the wrong question help pls and thank you
Answer:
52 7/8 pounds
Step-by-step explanation:
Find the smaller dog's weight by multiplying the larger dog's weight by 0.75:
70.5(0.75)
= 52.875 or 52 7/8 pounds
So, the smaller dog weighs 52 7/8 pounds
The required weight of the smaller dog is 52.875 pounds.
Given that,
Doug has two German Shepherds. The larger dog weighs 70 1/2 pounds. If the smaller dog weighs 75% as much as the larger dog, To find the smaller dog's weight.
In mathematics, it deals with numbers of operations according to the statements.
What is percentages?The percentage is the ratio of the composition of matter to the overall composition of matter multiplied by 100.
Here,
Let the weight of the smaller dog be x,
The weight of the smaller dog is 75% of the larger dog
x = 75% of 70 1/2
x = 0.75 * 70.5
x = 52.875
Thus, the required weight of the smaller dog is 52.875 pounds.
Learn more about arithmetic here:
brainly.com/question/14753192
#SPJ2