I need help with these questions plz help
Answer:
1.A=bh/2
2A=bh
2A/b=h
answer check
2.f(x)=21-6x f(5)=21-6(5)
g(x)=2x/5-11 f(5)=21-30
21-6x=2x/5-11 f(5)=-9
21=32x/5-11 g(5)=2(5)/5-11
(5)32=32x/5(5) g(5)= 10/5-11
160=32x g(5)=2-11
5=x g(5)=-9
3. f(7)=3(7)-7
f(7)= 21-7
f(7)= 14
Step-by-step explanation:
WILL GIVE BRAINLIEST!
Find x given y = 28° from the figure below.
x =
[tex]5x + x + y + 2x = 180 \\ y = 28 \\ 5x + x + 28 + 2x = 180 \\ 8x + 28 = 180 \\ 8x = 180 - 28 \\ 8x = 152 \\ x = 19[/tex]
Can I find the scale factor for a point with 2 different scale factors? (one for the x-axis and one for the y-axis)
Answer:
Yes
Step-by-step explanation:
Scale factor is the ratio of the length of one side of a point/figure to a similar side in another point or figure.
The scale factor can either be less than one(1) or greater than one(1) depending on the figure/ point you begin from when finding the scale factor.
Hence you can find the scale factor for a point with 2 different scale factors
Find the value of x. Show your work on a piece of paper."
1)
3
12
х
20
The mean temperature for the first 4 days in January was 7°C.
The mean temperature for the first 5 days in January was 5°C.
What was the temperature on the 5th day?
Answer:
3c
Step-by-step explanation:
If the temperature is seceding everyday I can only guess the next day it decreases.
The top five test scores in Mr. Rhodes’s class were: 98, 92, 96, 97, and 97. What is the mean absolute deviation?
Answer:
A
Step-by-step explanation:
A sandbox in the shape of a trapezoid is show below. If a cover is to be made for the sandbox, what if the minimum amount of fabric needed?
The minimum amount of fabric needed for a sandbox is,
⇒ 72 feet²
We have to given that;
A sandbox in the shape of a trapezoid is show below.
And, a cover is to be made for the sandbox.
Hence,
The minimum amount of fabric needed for a sandbox is,
⇒ Area of fabric = 9 × 7 + (1/2 × 9 × 2)
= 63 + 9
= 72 feet²
Thus, The minimum amount of fabric needed for a sandbox is,
⇒ 72 feet²
Learn more about the multiplication visit:
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Last year Rikki sang 960 songs with his rock band. How many songs did he sing per month? How did you get your answer?
Answer:
80 songs per month.
Step-by-step explanation:
There are 12 months in a year
So you do 960 divided by 12 to see how many songs he sang per month
And you get 80.
can somebody please help me, this is due in 20 minutes
Answer:
61°
Step-by-step explanation:
In order for triangle LMN and PQR to be congruent, angle M and angle Q must equal. thus, we can set 2x-26=x+16
with basic algebraic manipulation, x=42. we then plug it back into the angle M or Q, getting angle M/Q= 58°
since this is a isoceles, the 2 base angle are identical, so 180= 58+2(angle P)
thus, angle P= 61
Hans wanted to find the length of the hypotenuse of the triangle. Which statement correctly identifies his error?
A right triangle has side lengths 40 centimeters and 9 centimeters. The hypotenuse is labeled c.
9 squared + 40 squared = c squared. 81 + 80 = c squared. 161 = c squared. StartRoot 161 EndRoot centimeters = c.
He did not square 40, he just multiplied by 2.
He did not finish the problem. He should have divided 161 by 2 to find the square root.
He should have added 9 + 9 to find the value of 9 squared.
He should have subtracted the two squares to get 40 squared minus 9 squared = c squared because numbers get too large if both legs are squared and then added together.
Answer:
He did not square 40, he just multiplied by 2
Answer 41 centimeters.
Step-by-step explanation:
C²=40²+9²
C²=1600+81
C²=1681
√c²=√1681
C=41cm
Answer:
the answer is A
Step-by-step explanation:
edg
The area of the triangular base of the prism above is 9 cm2. The height of the prism is 11 cm.
What is volume of the prism?
A.99 cm3
B.891 cm3
C.1,089 cm3
D.29 cm
PLEASE HELP!!!!! Much appreciated!
Answer: B
Step-by-step explanation: first you have to find the square root of 9 (81) then multiply that by 11 which is 891
Find the measure of.. (image included)
I need help please! My teacher changed the due date to today and I don't understand it.
Answer:
B) 50
Step-by-step explanation:
<A = x + 53
x + 53 + x + 83 + 50 = 180
2x + 186 = 180
2x = -6
x = -3
<A = x + 53
-3 + 53
50
This is right? Isn’t it???
Write an equation for each circle
1. center (-1,-5);r = 2 units
3. center (-8, 7); r = 12 unit
5. center (0.5, 0.7); r = 13.5 unitsand
In a race , Ram covers 5 km in 20 min. How much distance will he cover in 100 min ? ( 348919)
Answer:
Ram will cover 25 km in 100 min's
Step-by-step explanation:
Hope this helps (^w^)
Answer:
hello :> UvU
Step-by-step explanation:
Pls help! brainliest if correct and 50 points awarded! look at the image! :)
Answer:
A and D
Step-by-step explanation:
I need to get in helppppppppppp
#9
Betty wants to put new cabinets in her kitchen. She measures one side of her kitchen and finds it measures 18 meters. Which measurement did Betty find?
Answer:
A. Length
Step-by-step explanation:
Betty wants to put new cabinets in her kitchen. She measures one side of her kitchen and finds it measures 18 meters.
Which measurement did Betty find?
A. Length
B. Perimeter
C. Area
The measurements Betty found is the length of the cabinet
A side of the cabinet is equivalent to the length of such cabinet
To find the perimeter of the cabinet, it requires the addition of all the sides of the cabinet.
To find the area of the cabinet, it requires the multiplication of two different sides of the cabinet.
Therefore, Betty has only measured the length of the cabinet
What is MCAD
A. 25
B.90
C.100
D.115
Please help!!!!
Answer:
D.115
Step-by-step explanation:
Use the exterior angle of a triangle theorem which states that the exterior angle of a triangle is equal to the sum of the opposite interior angles meaning D=C+B
find the area of the semi circle please
Answer:
58.4197cm^2
Step-by-step explanation
cirlce area formula: [tex]\pi[/tex]r^2
r= 6.1
[tex]\pi[/tex]=3.14
Now plug numbers into the formula
area of circle:
= (3.14)(6.1^2)
=(3.14)(37.21)
= 116.8394cm^2 ------> area of full circle
now divide by 2, to find area of semi circle
116.8394/2= 58.4197cm^2
[tex] \huge\fbox\red{A}\fbox\pink{n}\fbox\purple{S}\fbox\green{w}\fbox\blue{E}\fbox\orange{r}[/tex]
area of semicircle is 58.572 m²
[tex] \huge \sf { \fcolorbox{green}{g}{Explanation :- }}[/tex]
[tex] \huge \underline{\large \fbox \red{Concept : }}[/tex]
We have to find the area of semicircle
So firstly we need to find the area of circle. because the semicircle of circle is the half of area of circle so first we find the area of circle then divide by 1 /2 then we get the area of semicircle.
We have given the radius of circle is 6.1 m
[tex]\huge\mathfrak\red{Solution : }[/tex]
[tex] \mathfrak \green{Area \: of \: circle = π × ( radius) ²}[/tex]
[tex]\mapsto \: \: \small \: \: \: \: \: \mathfrak \blue{ = \frac{22}{7} \: \times( 6.1 \: m)^{2} } \\ [/tex]
[tex]\mapsto \small \: \: \: \: \: \mathfrak \blue{ = \frac{22}{7} \: \times37.21 \: m {}^{2} } \\ [/tex]
[tex]\mapsto \: \small\: \: \: \: \: \: \mathfrak \blue{ = 116.94 \: m {}^{2} }[/tex]
Therefore,
[tex]\small \mathfrak \red{Area \: of \: semicircle = \frac{1}{2} \times area \: of \: circle}[/tex]
[tex] \small \mathfrak \green{ = \frac{1}{2} \times 116.94 \: cm \: {}^{2} } \\ [/tex]
[tex]\mapsto \: \small\: \: \: \: \: \: \mathfrak { = 58.472\: m {}^{2} }[/tex]
[tex] {\underline {\fbox\red{Hence, the area of semicircle is 58.572 m²}}}[/tex]
Barry carefully measured all three sides of the triangle and the dimensions were as follows: 7 meters, 8 meters, 10 meters. Was it a Right Triangle? Please help!
Answer: Not a right-angled triangle
Step-by-step explanation:
Given
The sides of a triangle are [tex]7\ m, 8\ m, \text{and}\ 10\ m[/tex]
For a right-angle triangle, it must satisfy the Pythagoras theorem
[tex]a^2+b^2=c^2[/tex]
i.e. the square of the larger side must be equal to the sum of the square of the remaining two sides
Here,
[tex]\Rightarrow 7^2+8^2\ ?\ 10^2\\\Rightarrow 49+64\ ?\ 100\\\Rightarrow 113\neq 100[/tex]
Therefore, it is not a right-angle triangle
Can someone help me please? I keep getting this wrong. Match the reasons for the statements. Thank you!
Answer:
Step-by-step explanation:
Given is 1
Corresponding angles Postulate is 2
Substitution is 4
Same side theorem is 3
Factorise fully
81 + 9p
Answer:
9(p + 9)
Step-by-step explanation:
9p + 81
Lets take 9 common from the expression.
⇒ 9(p + 9)
Answer:
9(9+p)
Step-by-step explanation:
9(9+p) = 81 + p
helppp :))) i- wasnt listening
Answer: 130 cm
Step-by-step explanation:
Let's take the equation for the volume of a rectangular prism
V=Length * Width * Height (L*W*H)
[tex]V=W*L*H[/tex]
V=2*13*5
[tex]V=2*13*5[/tex]
V=130 cm
[tex]V=130cm[/tex]
antonio and emilia are painting a room in their new house. antonio could finish the job in only 6 hours by himself, while emilia could finish the job in only 4 hours by herself. how long would it take them if they worked together?
Answer:
Step-by-step explanation:
Antonio’s rate is 1/6 while Emilia’s rate is 1/4 while working alone, together they will complete the job when.
t/6+t/4=1 making common denominators
(t/6)(2/2)+(t/4)(3/3)=1
(2t+3t)/12=1
5t=12
t=2.4 hours (or 2 hours and 24 minutes)
[tex][Inequalities][/tex]
[tex]Please[/tex] [tex]help[/tex] [tex]and[/tex] [tex]thanks.[/tex]
Answer:
1+X < 52
6 < Y- 4
Step-by-step explanation:
btw y did u report me on
https://brainly.com/question/22537441
x^2 - 36x -6 factorization
Answer:
cannot factor further
Step-by-step explanation:
step 1: search online for factoring calculator
step 2: pick a site to use
step 3: enter problem and hit enter
step 4: see full solutions.
sorry I couldn't help more
Plssss i need your helpppp huhuhu
Answer:
136 cm²
Steps:
LA = π × 8 × √(15²+8²)
LA = π × 8 × √(225+64)
LA = π × 8 × √(289)
LA = π × 8 × 17
LA = π × 136 cm²
I need to find the angle for each number spot
A silk worm grows twice asd long as it was the day before .If the worm measures v40 mm on the 10 th day, on which day was it 2.5 mm long
Answer:
On the sixth day (10 - 4), the worm was 2.5mm long.
Step-by-step explanation:
Giving the following information:
Future Value= 40mm
Present Value= 2.5mm
Number of periods (n)= ?
Growth rate= 100% per day
First, we need to calculate the number of days it will take to grow from 2.5mm (PV) to 40mm (FV):
n= ln(FV/PV) / ln(1+i)
n= ln (40 / 2.5) / ln (2)
n= 4
It will take 4 days.
On the sixth day (10 - 4), the worm was 2.5mm long.