9514 1404 393
Answer:
-5x² -4x +8
Step-by-step explanation:
Eliminate parentheses and collect terms.
(-2x² +3) -(3x² +4x -5)
= -2x² +3 -3x² -4x +5
= (-2-3)x² -4x +(3 +5)
= -5x² -4x +8
-5x² -4x +8
remove parentheses and collect terms.
(-2x² +3) -(3x² +4x -5)
= -2x² +3 -3x² -4x +5
= (-2-3)x² -4x +(3 +5)
= -5x² -4x +8
PLEASE HELP!!!
In what ways do sine, cosine, and tangent help us create or understand these triangles?
From what you know so far, what are the limitations to what sine, cosine, and tangent can tell us about the world?
Answer:
actually these trigonometric identies helps us in the problem of height and distance.
actually originated from India trignometic identities are famous all over the world .greek mathematician Pythagoras also has important contribution intrigometry.
it opens up the world of architect and civil engineering to u and lot more
keep exploring
Simplify the ratio 154:132 in its simplest form
Answer:
The simplified ratio is 7:6
Step-by-step explanation:
First we have to find the GCF of both 154 and 132. Since the GCF is 22, we will divide 154 by 22 and we get 7. Now divide 132 by 22 and we get 6. Therefore, the simplest form or the ratio 154:132 is 7:6.
Which of these show a set of equivalent expressions ? select all that apply
HELPPP ME QUICKKKKK PLEASEEE GUYSSS NO BOTS OR I WILL REPORT Which of the following equations describes the line shown below? Check all
that apply.
(1, 13)
(-2,4)
I think its option b c and e
Look at the figure. How can you prove the triangles are congruent?
It is not possible to determine if the triangles are congruent.
∆ABD ≅ ∆CBD by the SAS Postulate.
∆ABD ≅ ∆CBD by the SSS Postulate.
Answer:
You can prove them to be congruent.
Step-by-step explanation:
You would use the SSS Postulate. This means Side Side Side.in the figure shown you can see sides AB and BC have one line crossing them making them equal. Same with side AD and CD. With side BD they are congruent because they are equal in size and share both triangles.
Hope this helps.
Fill in the table using this function rule. y=6x +3
Please someone help me with this no links
Answer:
w = -12
Step-by-step explanation:
You basically have 90% of the question done. You just needed to divide -60 by 5 and then get -12.
Good Luck!!!!!
=====================================================
Explanation:
You're on the right track. You start off subtracting 35 from both sides, and then next divide both sides by 5. Your steps are 100% correct. The last thing to do is to simplify each side after what you wrote. The -60/5 on the left simplifies to -12, while the 5w/5 on the right simplifies to w. We end up with -12 = w and that's the same as w = -12.
--------------
To verify, replace every copy of 'w' with -12 in the original equation and simplify each side.
-25 = 35 + 5w
-25 = 35 + 5(-12)
-25 = 35 - 60
-25 = -25
We end up with the same thing on both sides, so the answer is confirmed.
Bob's Gift Shop sold 800 cards for Mother's Day. One salesman, Owen, sold 2% of the cards sold for Mother's Day. How many cards did Owen sell?
The number of cards sold for Mother's Day by Owen is 16.
Total cards=800
Percentage of sold cards =2%
What is a percentage?A percentage is a value per hundred.
So, 2% of 800 = (2*800)/100
2% of 800 =1600/100
2% of 800 =16
So, owen sold 16 cards
Hence, the number of cards sold by Owen is 16.
To get more about percentages visit:
https://brainly.com/question/24304697
What is the additive inverse of 8,964?
Can somebody please help me with this question , if you could help me with a few more please add me
Answer:
A
Step-by-step explanation:
a positive number times a negative number is equal to a negative number.
Because all negative numbers have a value less than 0 the inequality sign must face towards the 0
The inequality sign also must be a < or > not a ≤ or ≥ as no positive number times -11 will equal 0
so the answer would be x < 0
In a class, everyone studies French or German, but not both languages. One third of the girls and the same number of boys study German. Twice as many boys as girls study French. Which of the total number of boys and girls in my class
Answer:
32
Step-by-step explanation:
Let the number of girls in the class be 3. Then the number of girls who study German is , as is
the number of boys who study German. So the number of girls who study French is 2 and the
number of boys who study French is 2 × 2 = 4.
Therefore the total number of boys and girls in the class is + + 2 + 4 = 8 and hence is a
multiple of 8. Of the options, only 32 is divisible by 8.
The height of a parallelogram is three times its base. If the area is 972 square inches, what is the base and height?
Answer:
Base = 18 inches
Height = 54 inches
Step-by-step explanation:
The height of a parallelogram is three times its base. If the area is 972 square inches, what is the base and height?
The area of a parallelogram is given as:
Base × Height
Height = h = 3b
Area = 972 square inches
We substitute
972 = b × 3b
972 = 3b²
Divide both sides by 3.
b² = 972/3
b² = 324
b = √324
b = 18 inches
Solving for h
h = 3b
h = 3 × 18
h = 54 inches
Therefore,
Base = 18 inches
Height = 54 inches
Describe how the graph of y=lxl – 7 is like the graph of y=lxl and how it is different.
Answer:
y = |x| is a parent function
y = |x| - 7 is a translation of the parent function vertically by 7 points down
The shape is same, just the entire graph has shifted down.
It's translated edition of parent function y=|x|
y=|x|If we translate it 7units down then the function is
y=|x|-7So
Everything is same
Just the graph shifted 7units downwards
What is the ratio of rise to run between the points (0, 4) and (5, 6)? A.5/2 B.-5/2 C.2/5 D.-2/5
Answer:
D.25
Step-by-step explanation:
Jason is buying wings and hot dogs for a party. One package of wings cost $7. Hot dogs
cost $5. He must spend less than $40.
Let x=the number of wing packages
Let y= the number of hot dogs
Write the inequality to represent the cost.
Answer: 7w + 5h < 40
Step-by-step explanation:
7w + 5h < 40
You must show all the steps for this problem. That means you must set-up the problem correctly step-by-step. Do not just write the answer only. You will not receive any credit for writing the answer only. Be sure to round the answer to the nearest degree. Find the measure of x in the right triangle.
Answer:
Below in bold.
Step-by-step explanation:
cos x = adjacent side / hypotenuse
= 8/21
= 0.380952
So m < x = arccos 0.380952
= 67.607
= 68 degrees to nearest degree.
Can someone tell me if y=0x+2 right ?
Answer:
Yes y=0x+2 is correct.
Step-by-step explanation:
2=0*-3+2
2=0*6+2
Have a nice day!
a rectangular prism has a length of 11.5 inches width of 5.75 inches and a height of 16 inches
There are 24 men and 36 women in a choir.
a What percentage of the choir are men?
b What percentage are women?
C.10 more men and 10 more women join the choir. What are the percentages of men and women now?
Answer:
Step-by-step explanation:
Total members in the choir = 24 + 36 = 60
a) Percentage of men = [tex]\frac{24}{60}*100[/tex]
= 4 * 10 = 40%
b) Percentage of women = 60%
c) Number of men =24 + 10 = 34 men
Number of women = 36 + 10 = 46
Total = 34 + 46 = 80
Percentage of men = [tex]\frac{34}{80}*100= 42.5[/tex]%
Percentage of women = (100 - 42.5)% = 57.5%
Answer:
Solution :-a]
% of men = 24/60 × 100
% of men = 4/10 × 100
% of men = 4 × 10
% of men = 40%
b]
% of women = 36/60 × 100
% of women = 6/10 × 100
% of women = 6 × 10
% of women = 60%
c]
Men = 24 + 10 = 34
Women = 36 + 10 = 46
Total = 34 + 46 = 80
% of men = 34/80 × 100 = 42.5
% of women = (100 - 42.5) = 57.5 %
[tex] \\ [/tex]
Pls help me hurry I need help!!
C. 9 square roots of 2
To answer this question, it's super important that you understand the ratio of sides for special triangles. This triangle in particular, a 45-45-90 triangle, has a ratio between the legs and hypotenuse of 1:1:
Since we are given the value of the hypotenuse, we know that the value of the two sides multiplied by [tex]\sqrt{2}[/tex] will be 18. Knowing this, we can write out an equation:
u*[tex]\sqrt{2}[/tex] = 18
u = [tex]\frac{18}{\sqrt{2} }[/tex]
Multiply both sides by [tex]\sqrt{2}[/tex] in order to get rid of the root in the denominator:
u = [tex]\frac{18*\sqrt{2}}{\sqrt{2} * \sqrt{2}}[/tex]
u = [tex]\frac{18*\sqrt{2} }{2}[/tex]
u = 9[tex]\sqrt{2}[/tex]
If you'd like me to explain how I got to the answer any further, just ask!
- breezyツ
How many coins are in each pouch?
Gia has 80 tiles each tile is white or blue she arranges the tiles in 8 equal rows each row has an equal number of white and blue tiles how many blue tiles are in each row
Answer:
5 blue and 5 white tiles per row
Step-by-step explanation:
80/8 =(10-this is the amount per row)then divide 10 by 2 to factor in your different different tiles)
Work Check:
80/8rows=10/2colors=5 this means 5 blue and 5 white per row
Alfredo bought a fishing pole for 60%
off its original price of $97. If the tax
was 4% (of the sale price), how much
did Alfredo pay for the fishing pole?
Answer:
40.35
Step-by-step explanation:
to find the amount without tax:
97 x .6 (60%) = 58.2 (the amount that will be taken off)
so 97 - 58.2 = 38.8 (the amount the pole will be WITHOUT tax)
to find the tax:
38.8 (sale price) x .04 (4 percent) = 1.552, rounded 1.55
to find full price:
38.8 (sale price) + 1.552 or 1.55 (tax) = 45.352 or 40.35
The price of a train ticket from Orlando to Atlanta is normally $118.00. However, the train company is offering a special 75% discount to children under the age of 16. What is the sale price of a ticket from Orlando to Atlanta for someone under the age of 16?
Answer:
$88.50
Step-by-step explanation:
118*0.75 = 88.50
Answer:88.50
Step-by-step explanation:
In rhombus BCDE, m angle B=68. Find m angle E.
NEED HELP!!!
Answer:
m<E=22
Step-by-step explanation:
m<B and m<D are congruent therefore, m<D=68
m<C and m<E are congruent.
All interior angles if a rhombus adds up to 180 degrees.
So... 68+68=136
Subtract the 136 from 180
180-136=44
Because m<C and m<E are congruent divide 44 by two
44/2= 22
m<C and m<E equal 22
Can anybody please help me on these notes?
Answer:
the y intercept will be at (0,-1) and to graph it just go up 6 and over 1 to the right and then go down 6 and 1 to the left
Step-by-step explanation:
hope this helps
3. x2 - 6x + 9 = 0
Are the real
Answer:
1 real solution: x=3
Step-by-step explanation:
By factoring:
x^2-6x+9=0
(x-3)^2=0
x-3=0
x=3
So yes there's 1 real solution which is x=3.
You can also check the discriminant:
b^2-4ac
(-6)^2-4(1)(9)
36-36
0
Since the discriminant is 0, there can only be 1 real solution.
Donald has two bags of grapes.
• Bag A contains g grapes.
• Bag B contains 40% fewer grapes than bag A.
The expression g – 0.40g can be used to find the number of grapes in bag B. Donald correctly simplifies the expression until it has just one term. What is the coefficient of g in Donald’s simplified expression?
Enter your answer in the box
G for bag A could also be written as 1g
The equation could then be written as 1g - 0.40g, which if you subtract can be solved as 0.60g
The answer is 0.60g
x + (x - 20) = 90
What is the value of x?
(Also... how do I break the news to my 4yo brother his chicken died?? o-o)
Please help before 2:10
Answer:
X= -1
Step-by-step explanation:
Answer:
x = -1 or D
Step-by-step explanation:
hope this helps
