Answer:
B
Step-by-step explanation:
a²+b²=c²
a²+20²=25²
a²=225
a=15
If x(x + y) = 3 and y(x + y) = 10, which of the following is a possible value of x + y?
(A) radical 7
(B) radical 13
(C) 6.5
(D) 7
(E) 13
With steps and explanation please.
Answer:
I believe that the answer is D: 7
In “Changing Views of the Earth," why does the author ask about what would happen if people could travel where the weather actually happened? A. to entertain the reader with a story about space travel B. to explain why Copernicus would support a heliocentric model C. to explain why NASA needs more funding for research D. to introduce the next development of weather measuring devices
Answer:
A
Step-by-step explanation:
Calculate the sum of the first n terms of the arithmetic progression (an)
a) a, = -4; d = 2; n = 16
please help me
Answer:
n²-5n
Step-by-step explanation:
The sum of the nth term is expressed as;
Sn =n/2[2a+(n-1)d]
Given
a, = -4; d = 2; n = 16
Sn = n/2[2(-4)+(n-1)2]
Sn =n/2[-8+2n-2]
Sn = n/2[2n-10]
Hence the sum of the nth term is 2n²-10n/2
2n(n-5)/2
= n(n-5)
= n²-5n
The sum of the nth term is n²-5n
X+5/-2=x-10/7
What does x=
Estimate the sum of 872 and 121 by rounding both values to the nearest hundred. What is the best estimate of the sum?
Answer:
872
Step-by-step explanation:
Please Hurry!!
simplify the expressions
1. 2x + 1 + 3x + 7
2. 5x + 2(3x + 5)
(two different questions)
Answer:
1. 5x + 8
2. 11x + 10
Step-by-step explanation:
1. 2x + 1 + 3x + 7
Combine like terms:
2x + 3x + 1 + 7
Add coefficients
5x + 8
2. 5x + 2(3x + 5)
Distribute the 2 by multiplying by each term inside the parentheses:
5x + 6x + 10
Combine like terms by adding coefficients
11x + 10
HELP WILL MARK BRAINLIEST IF GOTTEN RIGHT!!! GET IT WRIBNG ON PURPOSE I REPORT YOU!
Answer:
A
Step-by-step explanation:
simplifique o seguinte produto notável: (2x-6)²
Answer:
Multiply first and add the negative sign and multiply all of it 2 times
Step-by-step explanation:
Answer:
4x +36
Step-by-step explanation:
= (2x - 6) * (2x - 6)
= 4x -12x -12x +36
= 4x +36
find the slope given the following points (8,-6) (-9,-12)
What is
h(x) = 1/(x-5)3
Answer:
lim_( 3\/(-5 + x) = 0
Step-by-step explanation:
h(x) = 1\/(x - 5)×3
{x element R : x!=5}
{h element R : h!=0}
d\/dx(3\/(x - 5)) = -3\/(x - 5)^2
integral 3\/(x - 5) dx = 3 log(x - 5) +
4(w + 1) = -6; w =
help asap
Answer:
w = -10/4 or -2.5
Step-by-step explanation:
4(w + 1) = -6
4w + 4 = -6
4w = -10
w = -10/4 or -2.5
Answer:
W = 1/2 or 0.5
Step-by-step explanation:
Distribute
4w + 4 = 6
-4. -4
4w/4 = 2/4
W = 1/2
Joe made a frozen yogurt shake with 10 ounces of milk and some strawberry frozen yogurt. He used the mixture to fill three 5-ounce glasses and had 2 ounces left over. How much-frozen yogurt did he use?
Answer:
2x - 9y = 23
5x - 3y = -1
Step-by-step explanation:
Please help
I will give 40 points ☺️
Answer:
Its 62
Step-by-step explanation:
I’m trying to figure out #’s 31 and 32. I don’t need the answers I just need guidance on how to figure them out.
Answer:
open circle means less than OR greater to
closed circle means less than or equal to OR greater than or equal to
Gerry drives her car at a constant rate of 60 miles/hour. How far will Gerry drive in 25 hours?
Answer:
The answer is 1500
Step-by-step explanation:
I multiplied 60 by 25
Answer:Its 1500
Step-by-step explanation:60 x 25
Can anyone help my little sister with her math I tried helping her but I couldn’t figure out how to do the math!!
Answer:
1: the wooden part is 3.725 kilograms.
2: 10 Children
Answer:
1 3.725 kg of wood
2 10
Step-by-step explanation:
For question 1 you multiply the total weight by 3/4 to find the weight of the metal, you then subtract this from the total to find the weight of the wood
For question 2 you look at it as a fraction 1/3 kids + 2/3 adults equal 30, since there are twice as many adults. Then you multiply 30 by 1/3 and get 10
PLEASE HELP ASAP 1-5 THANK YOU!!!
Answer:
1a
2c
3c
4a
5d
hope this helps
Step-by-step explanation:
Answer:
1. $120
2. 8 hours
3. $15
4. $30/hr
don't know what #5 is
B Mrs. Sayers made a rectangular fence
around the school vegetable garden so it
would not get destroyed by students. She
constructed a fence that was 4 feet long, 2 feet
wide, and 3 feet high. How much material did
she use to build her fence?
Answer:
Mrs. Sayers utilized 24 sq. ft material to build her fence
Step-by-step explanation:
length x width x height = volume
4 x 2 x 3 = 8 x 3 = 24
List all possible rectangles that can be formed by cross-sectional cuts within the prism, through 4 of the 8 vertices.
Answer:rectangular pyramid
Step-by-step explanation:The cross section is a rectangle. Note that not all cross sections of a rectangular prism are rectangles. Figure 4 shows the cross section of a right rectangular pyramid parallel to its base.
(i have no idea if this is right or not i learned this form my teacher.)
Answer:
you is
Step-by-step explanation:
(3/4)^-1 (4/3)^-2 exponent solving
Answer:
7/12
Step-by-step explanation:
3/4 - 4/3 = 7/12 or 0.583
Can someone help me with this ? Not really sure how to solve it, I'll give brainliest too !
Answer: y=5x+4
Step-by-step explanation:
Remember this
Slope-Intercept form: y=mx+b
m is the slope (5)
b is the y-intercept (4)
So your equation is
y=5x+4
Answer:
y = 5x + 4
Step-by-step explanation:
y - 4 = 5(x - 0)
That is point-slope form. I'm not sure if you want it in slope-intercept form, but the slope-intercept form of the equation is -
y = 5x + 4
How much will 28 pencils cost if 7 pencils cost $1.82?
Answer:
7.28
Step-by-step explanation:
1.82*4= 4+3.20+.08= 7.28
Answer:
$7.28
Step-by-step explanation:
7 pencils:$1.82
28 pencils:$x
28/7=4 so multiply 1.82 by 4
$7.28
HELP FOR BRAINIEST!!
Please write each equation in Slope-Intercept Form!
Answer:
y=-2/3x-3 is the equation in slope intercept form
Step-by-step explanation:
Hope this helps (:
Which value of x from the set { 8 , 11 , 61 , 67 } makes the equation ( x − 3 )² = 64 true?
8
11
61
or 67
Answer:
I
Step-by-step explanation:
this its 61 ok thanks you
Lauren got 321$ for her birthday. She wants to put 20% in her savings account. How much will she have left over to buy new clothes?
Answer:
$256.80
Step-by-step explanation
Change the 20% to a decimal, .20, the multiply it by the total amount of $$$, 321, and you get $64.20. Subtract that by the total amount to get the amount left over for her to get new clothes.
Hope it helps!! :))))
Alyssa had 191 dollars to spend on 6 books. after buying them she had 17 dollars. how much did each book cost?
Mr. Dayton uses 14 cups of flour to make three identical loaves of bread.
How much flour is in each loaf?
to find out how much flour is in each loaf, use?
Answer:
10
Step-by-step explanation:
ll
Answer:
he used 4 1/6 cup of flour for each loaf I think
Step-by-step explanation:
Algebra 1 ,pls answer and tell me as fast as you can
In which step did Carson make his first mistake?
1 - 4x = 2/3 (-2 + x)
Step 1: 1 - 4x = - 4/3 + x
Step 2: 1 = -4/3 + 5x
Step 3: 7/3 = 5x
Step 4: 7/15 = x
Answer: the first because he didn’t distribute the 2/3 with all the things in the parentheses
Step-by-step explanation: it’s supposed to be -4/3 + 2/3x the first step
Answer the photo below thanks