Answer:
For the first triangle the missing sides are 7 and 7√2 For the second triangle,the missing sides are 13√3 and 13
Step-by-step explanation:
For the first triangle,
cos(45°)=7/hypotenuse
hypotenuse×cos45=7
hypotenuse×√2/2=7
hypotenuse=14/√2=7√2
We can now find the adjacent side using Pythagorean theorem,
√(7√2)²-7²=7
For the second triangle,
cos(30°)=adjacent/hypotenuse
but cos 30=√3/2
√3/2=adjacent/26(cross multiply and simplify)
26√3/2=13√3
To find the opposite length,
√(26)²-(13√3)²=13
The diagonals of this rhombus are 8 and 16 units long. Their intersection creates four right angles, two 4-unit-long segments, and two 8-unit long segments. Given this information, find the area of the rhombus in square units (Use only the digits 0 – 9 and the decimal point, if needed, to enter a number).
Answer:
[tex]64\ \text{sq. units}[/tex]
Step-by-step explanation:
Area of a rhombus is the product of the length of the diagonals divided by two.
Length of one diagonal is 8 units and the other diagonal is 16 units
Area is given by
[tex]A=\dfrac{8\times 16}{2}\\\Rightarrow A=64\ \text{sq. units}[/tex]
The area of the rhombus is [tex]64\ \text{sq. units}[/tex]
Another approach is the diagonals have created 4 triangles where the base and is height is either 4 units long or 8 units long so the area of the rhombus would be the area of the 4 triangles.
[tex]A=4\times \dfrac{1}{2}\times 4\times 8\\\Rightarrow A=64\ \text{sq. units}[/tex]
If Marlee rolls the number cube 12 times, how many times would she expect to get a number greater than 4
Answer:
i think its 6, but tell me is it multiple choice.
Step-by-step explanation:
Please help me find the value of x
Answer:
hhhhhhhhhhhhhhhhhhh
Step-by-step explanation:
x=9
Pls help me solve for x ill give 10 points away
Answer:
.53 pounds of dog food each day.
Step-by-step explanation:
Use PEMDAS to solve
The scale of a map is 1 inch = 25 miles. On the map, the distance between two cities is 5.25 inches. What is
the actual distance in miles?
Show Your Work
Answer:
131.25 miles.
Step-by-step explanation:
if 1 inch is equal to 25 miles then you need to multiply 5.25 by 25 which equals 131.25 miles.
The actual distance between two cities is 131.25 miles.
What is ratio?Ratio basically compares quantities, that means it shows the value of one quantity with respect to the other quantity.
If a and b are two values, their ratio will be a:b,
Given that,
The scale of a map,
1 inch = 25 miles,
Also, the distance between two cities on the map is 5.25 inches.
To find the actual distance in miles.
Use ratio method,
1 inches = 25 miles,
5.25 inches = 25 x 5.25 miles
= 131.25 miles
The actual distance between cities is 131.25 miles.
To learn more about Ratio on :
https://brainly.com/question/13419413
#SPJ2
Write an equation in slope-intercept form for the line with slope -
and y-intercept - 4.
Answer: y= - 1x- 4
Step-by-step explanation:
-6 -3x=5x -4x can somebody solve this ?
Isolate the variable by dividing each side by factors that don't contain the variable.
Exact Form:
x = −3/2
Decimal Form:
x = −1.5
Mixed Number Form:
x = −1/1/2
44.56 divided by 4.46
Answer:
9.99103139013
Step-by-step explanation:
For the rounded version it would be 10.00 rounded to the nearest whole
help please 7th grade math
Answer:chopped almonds and white sugar are correct
PLS GIVE BRAINLIEST
What is y-8=3(x+1) in standard form
Answer: 3x - y= -11
Step-by-step explanation: just rewrite in youre standard form equation
Can somebody help me on this one
Please answer the question below
Answer:
11
Step-by-step explanation:
Write the equation of the line that passes through the given points.
(15/8,0) and (17/8,1/2)
The equation of the line is _______.
Answer:
Step-by-step explanation:
Going from (15/8,0) to (17/8,1/2), we see that x (the 'run') increases by 2/8, or 1/4, and that y (the 'rise') increases by 1/2. Thus, the slope of this line through the given points is m = rise / run = (1/2) / (1/4) = 2.
Using the point-slope formula for the equation of a line, we obtain:
y - 0 = 2(x - 15/8), or
y = 2(x - 15/8) (simplest form), or
8y = 2x - 15/4, or
2x - 8y = 15/4, or
8x - 32y = 15
All of these are correct; they are 'equivalent.'
How do I solve y= -3x + 21 -2x +3y = 8 by substitution?
Answer:
x = 5
Step-by-step explanation:
substitute the y equation into -2x +3y =8 and you will get 5 as the solution :)
This is for middle school 9th grade please help me :)
Answer:
i think it's undefined
Step-by-step explanation:
I need help please !
Answer:
3) B is congruent toE
Step-by-step explanation:
B is congruent to E helps you prove triangle ◇ABC is similar to ◇ DEF, not congruent to it.
I WILL GIVE BRAINLY!!!!!!!!!
Samuel earns $5 per hour plus 65% commission on all his sales. If y represents
his sales for one day, which expression represents Samuel’s total earnings for a
day when he worked 6 hours?
A. 5(6) + 65y
B. 5(65) + 6y
C. 5(6) + 0.65y
D. 5(6) + 1.65y
PLSSSS SHOW YOUR WORK PLSSSS
Answer: C. 5(6) + 0.65y
Step-by-step explanation:
Process of elimination.
65% of y = 0.65y
A has 65y, completely incorrect.
B has 6y, also completely incorrect.
C has 0.65y, correct.
D has 1.65y, also completely incorrect.
what was the average speed of the winner in miles per hour? Explain
Answer:
my mom
OOOO
Step-by-step explanation:
huh 12x*5
Which statement describes a ratio?
Need help asp!!!plz
What is the output of the function y = 2" + 4 if the input is -2?
Answer:
Step-by-step explanation:
4(s + 50) 52 +30s + 200
Braydon paid $94 for 6 meals. How much would 9 meals cost?
Answer:
assuming all the meals cost the same: about 141 dollars
Step-by-step explanation:
comment if explanation needed
Help with question 4 please
Answer: y=5 x=11
abc=def
ab=de <b=<e
17y-8=12+13y 11x-4=117
-13y -13y +4 +4
4y-8=12 11/11x=121/11
+8 +8 x=11
4/4y=20/4
y=5
m/4-1/2=m/6+5
Please help
Answer:
3m/12-6/12=2m/12+60/123m-2m/12=60-6/12m/12=54/12m=54/12×12m=54
is the correct answer is the 54
Will mark brainliest for whoever answers
Answer:
a; r=1 is the answer
Step-by-step explanation:
Answer:
c).r=1
Step-by-step explanation:
hope this help
pick me as the brainliest
5.Select all of the expressions that are equivalent to 8x - 12
(3 Points)
a.4(2x - 3)
b.-12x + 8
c.6x + 2x - 12
d.8(x - 1) - 4
Answer:
A
Step-by-step explanation:
after 1 1/2 hours Chris had collected 1/4 cup of water what is the rate in cups per hour
Answer
0.167 cups per hour
Step-by-step explanation:
Two Step Equation
-26 = -15x + 8
Answer:
x = 2 [tex]\frac{4}{15}[/tex]
Step-by-step explanation:
-26 = -15x + 8
-34 = -15x
x = 2 [tex]\frac{4}{15}[/tex]
Answer:
34/15
Step-by-step explanation:
(- 26) - 8= -15x
-34=-15x
-34/-15=x
34/15=x
Sausages come in packets of 7. Bread rolls come in packets of 5. Dan wants to buy enough packs of sausages and rolls so that there are an equal number of sausages and rolls. What is the minimum number of sausages and rolls he needs to buy?
Answer:
5 packs of sausages7 packs of rolls
Step-by-step explanation:
You need to find the common multiple.
5 x 7 = 35.
We know that before this there is no other common multiple becuase 7 does not multiply to a number that ends with a 0 or 5 until 35.
So, he will need to buy:
- 5 packs of sausages
- 7 packs of rolls
Answer:
7 packs of rolls
5 packs of sausages
Step-by-step explanation:
The easiest way to solve this question is to make a table with 3 columns
Rolls 5 10 15 20 25 30 35
Sausages 7 14 21 28 35 42 49
# packs 1 2 3 4 5 6 7
Looking at the table you can see that the first number that matches up is 35 so looking at that point we would need 7 packs of rolls and 5 packs of sausages.
help me find slope! Plz
Answer: m=-1
Step-by-step explanation:
The production rate of a steel factory is declining due to old machinery. Over the last eight days production has dropped by 1.2 tons. What is the average rate of change in steel production over the eight days? Express the answer in tons per day.
A.
+1.2
B.
-1.2
C.
+0.15
D.
-0.15
Answer:
I think is A srry if im wrong :c
Step-by-step explanation:
Answer:
-0.15
we want to divide the amount of tons that was lost over the course of 8 days, in which the answer is 1.2 divided by 8 = 0.15, we then get -0.15 because they lost tons
I hope this helps