Answer:
a.
5.4 cm; 133 degrees
Step-by-step explanation:
hope this helps
Sarah’s weekly pay is increasing from $525 per week to $600 per week. which of the following is closest to the percent Sarah’s pay is going up?
1)8.3%
2)10.4%
3)12.5%
4)14.3%
Which expression is a factor of 9r^2 - 4r + 1?
F 3r-1
G r- 1
H- 9r- 1
J- There are no real factors.
9514 1404 393
Answer:
J- There are no real factors.
Step-by-step explanation:
For quadratic ax^2 +bx +c, the discriminant is ...
d = b^2 -4ac
d = (-4)^2 -4(9)(1) = 16 -36 = -20
When the discriminant is negative, there are no real factors.
Answer: there are no real factors
Step-by-step explanation:
find the value of y in the diagram below.
9514 1404 393
Answer:
5
Step-by-step explanation:
The diagram shows that 4y = 20.
Then y is one of 4 equal parts, so y = (1/4)(20) = 5.
The value of y is 5.
I really need help with 9 and 10. If you can help I’ll figure out how to give your brainliest.
Answer:
2 and 5[89] .........................
PLEASSEE HELP MY ASSIGMENT IS ALMOST DUEEE!!! PLEASE HELP MY I WILL GIVE YOU BRAINLEST
Answer:
ill help you whats the question
Step-by-step explanation:
Answer:
what do we answer I see nothing
Step-by-step explanation:
??
Don't use such phrases here, not cool! It hurts our feelings :(.
what is this i just asked a question and i get this.
Answer:
true
Step-by-step explanation:
Will mark brainlist PLSSSS HELPPPPPP
How many of each different 2-D shapes do you see?
Answer:
Hexagon and rectangle
Step-by-step explanation:
Which transformations can be used to map a triangle with vertices A(2, 2), B(4, 1), C(4, 5) to A’(–2, –2), B’(–1, –4), C’(–5, –4)? a 180degree rotation about the origin a 90degree counterclockwise rotation about the origin and a translation down 4 units a 90degree clockwise rotation about the origin and a reflection over the y-axis a reflection over the y-axis and then a 90degree clockwise rotation about the origin
The transformations that can be used to map a triangle with vertices A(2, 2), B(4, 1), C(4, 5) to A’(–2, –2), B’(–1, –4), C’(–5, –4) is C. a 90 clockwise rotation about the origin and a reflection over the y-axis
What is a Transformation?This refers to the mathematical process where one figure or expression is changed from one form to another that has or contains a similar value.
Given the pair of points (x, y) in the original image, it has been transformed to (-y, -x).
If we allow ABC to be first transformed onto A"B"C" by a 90° clockwise rotation, this would result in:
B(4, 1) being mapped onto B''(1, -4).
Therefore, the rule mapping ABC to A"B"C" is (x, y)→(y, -x)
With this, we can conclude that the transformation that maps (y, -x) to (-y, -x) is a reflection with respect to the y-axis
Option C is the correct transformation.
Read more about transformations here:
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Answer:
C
Step-by-step explanation:
Need math helps plzzzz no links or imma report u 20 points plzzz helps
Answer:
the answer is (c)
Step-by-step explanation:
-(-1)-13= 1-13=-12
Answer:
-1
Step-by-step explanation:
You need to take -13 behind the = sign and it will become +13. Now -12+13=-1. Again it is -x because of which 1 will be divided by - and the answer will be -1
what is (100×23)+46
also i just need my question to be longer so hi
Answer:
(100×23)+46=2346
Step-by-step explanation:
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A silicon wafer is textured to minimize light reflection. This results in a surface made up of square pyramids. Each triangular face of one of the pyramids has a base of 5 micrometers and a height of 5.6 micrometers. Find the surface area of the pyramid, including the base.
Answer:
86.33 square micrometers
Step-by-step explanation:
A silicon wafer is textured to minimize light reflection. This results in a surface made up of square pyramids. Each triangular face of one of the pyramids has a base of 5 micrometers and a height of 5.6 micrometers. Find the surface area of the pyramid, including the base.
The formula for the Surface Ares mma is given as :
A=a² + 2a √a²/4+ h²
a = base edge = 5 micro meters
h = height = 5.6 micro meters
=5²+2× 5 × √5²/4+ 5.6²
= 86.32699 square micrometers
≈ 86.33 square micrometers
If you answer this you're HOT!!!!!
For the following question, determine whether the two are similar. If so, give the scale factor of the figure to the larger figure
Answer:
Yes, 1:3.
Step-by-step explanation:
Each of the numbers on figure 2 are 3 times the number on figure 1.
7th grade math help me pleaseee
Answer:
He bought 26 stamps
Step-by-step explanation:
13.66=.39x+4.30
9.36=.39x
26=x
Answer:
24 stamps
Step-by-step explanation:
13.66 - 4.3 = 0.39s
9.36 = 0.39s
Divide both sides by 0.39
24 = s
Or turn it:
s = 24
Remove the largest possible common factor. Check your answer by multiplication.
35x3 + 21x2 + 28x
Answer:
7x
Step-by-step explanation:
help asap kinda confused D;
Answer:
its 8
2 to the power of 3 is 8
yoo can some on help im just a dud that suck a ixl
Help please asap
What is the surface area
Answer:
27
Step-by-step explanation:
maybe?
Answer:
486
Step-by-step explanation:
start by finding the area of 1 side
then you multiply it by 6 since a cube has 6 sides
Working on math right now!
Answer:
Hi! The answer to your question is A. [tex]5^{4} * 4^{8}[/tex]
Step-by-step explanation:
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☆Brainliest is greatly appreciated!☆
Hope this helps!!
Stay Safe!!!
- Brooklynn Deka
Write at least two operations that have the value - 2/4.
Answer:
(-1)- (-1/2)= -0.5
Step-by-step explanation
-0.5 = to -2/4 in fraction
-0.5 in a fraction equals -2/4
and heyo
Anyone know how to answer this question?
Answer:
30
Step-by-step explanation:
Diana baked 36 cookies with 4 scoops of flour. How many scoops of flour does Diana need in order to bake 45 cookies? Assume the relationship is directly proportional.
Answer:
5 scoops of flour
Step-by-step explanation:
36 divided by 4 is 9
9 x 5 is 45
Special right triangles how do you solve them
The interior angles of any triangle must add up to 180° in measure. Right angles have measure 90°, so the missing angles in both triangles here have measure 45°.
In a 45°-45°-90° triangle, the legs and hypotenuse occur in a ratio of 1 : √2. This means
(1) x = 48 √2
(2) 88 = √2 x → x = 88 / √2 = 44 √2
You could also set up trigonometric equations to solve for x in each case:
(1) cos(45°) = 48 / x → x = 48 / cos(45°) = 48 / (1 / √2) = 48 √2
(2) cos(45°) = x / 88 → x = 88 cos(45°) = 88 (1 / √2) = 44 √2
Step-by-step explanation:
The interior angles of any triangle must add up to 180° in measure. Right angles have measure 90°, so the missing angles in both triangles here have measure 45°.
In a 45°-45°-90° triangle, the legs and hypotenuse occur in a ratio of 1 : √2. This means
(1) x = 48 √2
(2) 88 = √2 x → x = 88 / √2 = 44 √2
You could also set up trigonometric equations to solve for x in each case:
(1) cos(45°) = 48 / x → x = 48 / cos(45°) = 48 / (1 / √2) = 48 √2
(2) cos(45°) = x / 88 → x = 88 cos(45°) = 88 (1 / √2) = 44 √2
O número -3 é a raíz da equação x² - 7x - 2c = 0. Nessas condições, determine o valor do coeficiente c: A) 7 B) -2 C) -3 D) 15 E) NDA
Responder:
c = 15
Explicação passo a passo:
se -3 é a solução para a expressão x² - 7x - 2c = 0, para obter c, vamos substituir x = -3 na equação (uma vez que é uma raiz)
x² - 7x - 2c = 0
(-3) ² - 7 (-3) - 2c = 0
9 + 21 - 2c = 0
30 - 2c = 0
30 = 2c
Trocar
2c = 30
c = 30/2
c = 15
Portanto, o valor de c é 15
Type the correct answer in each box. Use numerals instead of words.
Consider the quadratic equation x² + 10x + 27 = 0.
Completing the square leads to the equivalent equation (x + ___)² = ___.
.
Answer:
(x + 5)² = 2 ==> x² + 10x + 27 = 0
Completing the square of the given quadratic equation leads to the equivalent equation (x + 5)² = -2.
What are Quadratic Equations?Quadratic equations are polynomial equations of second degree.
The general form of a quadratic equation is ax² + b x + c = 0.
Given quadratic equation is,
x² + 10x + 27 = 0
We have the algebraic identity that,
(a + b)² = a² + 2ab + b²
The given quadratic equation is in the form of a² + 2ab + b², where a = x.
So, 2xb = 10x
⇒ b = 5
Now, b² = 25.
So, the given can be written as,
(x² + 10x + 25) + 2 = 0
(x + 5)² = -2
Hence the equivalent form is (x + 5)² = -2.
Learn more about Quadratic Equations here :
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In illustrating combination question, during conference meeting there are 7 guests bumped their elbow instead of shake hand in greeting each of other to observe the health protocol ,and show the solution please...
An electrician charged a fee of $45 plus $60 per hour to come to Ed's house and make a repair. How many hours did the repair take if the total bill was $120.
Answer:
1 hour and 15 minutes
Step-by-step explanation:
$120 - $45 = $75
$75 ÷ $60 = 1.25 hours or and 1 hour and 15 minutes
HELPP ME PLEASE!!!!
don’t use for points or i’ll report you.
I need help on this it's due in 10 minutes
Answer:
B, no, yes, no, no, no, 225
Step-by-step explanation:
tell whether a triangle can have the given angle measures:
47°, 109°, 23°
Answer:
No
Step-by-step explanation:
47 + 109 + 23 = 179
But the angle sum of a triangle is 180.
24. Suppose the area of the sail shown in the photo at the left is 110 ft. Find the dimensions of the sail.