Answer:
350%
Step-by-step explanation:
First, there is a whole number in the ones place, so that number will be in the hundreds place of your percent. Then to find the percent of 0.5 you put the decimal part over 10:
5/10 = 1/2 = 50%
The answer to a multiplication problem
with 4 negative numbers will always be
Solve for x if line a and b are parellel. SHOW YOUR WORK PLEASE.
Answer:
Step-by-step explanation:
Internal alternate angles are identical when parallel lines are intersected by a third line
3x + 16 = 5x - 54
-2x = -70
x = 35
What is the x value such that y =15 - 3x and y = 0?
find the square root of 12.96 by divison method
Answer:
3.6
Step-by-step explanation:
HOPE IT HELPS!!!!!!!
Step-by-step explanation:
See this above attachment.
[tex]\tt{\sqrt{12.96}=3.6}[/tex]
EASY QUESTION WILL GIVE BRAINLIEST
Sally can paint a room in 6 hours while it takes Steve 5 hours to paint the same room. How long would it take them to paint the room if they worked together?
Answer:
2.727 or 2 8/11
Step-by-step explanation:
5 * 6 / (5 + 6) =
30/11
= 2.72727273 or 2 8/11
Given f (x) = 5x - 3, find f (-2)
Answer:
f(- 2) = - 7
Step-by-step explanation:
To evaluate f(- 2) substitute x = - 2 into f(x), that is
f(- 2) = 5(- 2) + 3 = - 10 + 3 = - 7
I have more question then this
Answer:
Reflection over the y-axis
Step-by-step explanation:
It is moved onto the opposite side of the y axis and it is flipped. Therefore it is a reflection over the y-axis
For what values of x is f(x) =-2x - 3 increasing? For what
values of x is it decreasing?
Answer:
The value of y is decreasing for all real values of x (-∞,∞).
Step-by-step explanation:
Seeing as we have a simple 1st power equation, the slope will remain the same. So, we solve for slope to see if this equation is for an increasing or a decreasing line.
y = mx + b, where m = the slope of the line
Is the standard slope form of a line, which matches the one given.
so in our equation, f(x) = -2x -3, our m value is -2.
Seeing as -2 is less than 0, the answer is:
The value of y is decreasing for all real values of x (-∞,∞).
which side lengths form a right triangle ?
Answer:
B
Step-by-step explanation:
1^2 + 8^2 = c^2
1 + 64 = c^2
65 = c^2
√c^2 = √65
Connor was traveling in Mexico and is returning to his home in the United States.
He has 2,567 pesos left. The current exchange rate is 1 U.S. dollar is equal to 19.43
pesos. How many U.S. dollars will he have if he converts his leftover pesos to
dollars?
$2,567
$102.68
$132.12
$3,414
Answer:
Connor will have $132.12 usd
2567(pesos)/19.43(exchange rate) = $132.12
<3Miss Hawaii
PLEASE HELP NOW!!!! 85 POINTS GIVEN! North America and Eurasia are moving apart due to continental drift. Tanvi calculates that they are doing so at a rate of roughly 2.5×102 centimeters per century. What would be the most appropriate unit for Tanvi to use instead of centimeters per century?
A-centimeters per year B-centimeters per week
C- centimeters per day D-centimeters per hour
Answer:
Answer is option A
Step-by-step explanation:
If you like my answer than please mark me brainliest thanks
Answer:
A. Centimeters per year
Step-by-step explanation:
I THINK. It's easier to think about it when you give shorter amounts of time, but not as short as a day or hour because the movement is too slow
Each face of a cube is a square with a side length of 3 meters. What is the total area of all the faces of the cube?
Answer: 54
Step-by-step explanation:
A cube is a perfect square to find the area use L x W and if the length is 3, the width is 9
A cube has 6 sides, so 9 x 6 = 54
The total area of all the faces of the cube is 54 square meters.
Let's dive into finding the total area of all the faces of a cube.
A cube is a special type of three-dimensional shape where all its sides (called faces) are equal squares.
In your case, each face has a side length of 3 meters.
Now, to find the total surface area of the cube, we need to calculate the area of each face and then add them up.
The formula to find the area of a square is side length squared, which is [tex]\(A = s^2\)[/tex], where [tex]\(A\)[/tex] is the area and [tex]\(s\)[/tex] is the side length.
So, for your cube, each face's area is [tex]\(3^2 = 9\)[/tex] square meters. Since a cube has 6 faces,
we simply multiply the area of one face by the number of faces: [tex]\(6 \times 9 = 54\)[/tex] square meters.
To sum it up, the total area of all the faces of the cube is 54 square meters.
This is calculated by finding the area of one face and then multiplying it by the total number of faces.
In this case, each face has an area of 9 square meters, and a cube has 6 faces, resulting in a total area of 54 square meters.
To know more about Area here
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A snail travels 12 centimeters in 4 minutes. The snail travels the same distance each minute. How many milliliters did the snail travel each minute?
Answer:
the snail travels 30 mm per minute
Step-by-step explanation:
Well 12 cenitmters divided by 4 minutes equals the amount of centimeters the snail travels per minute, which is 3 centimeters (12 / 4 = 3). but be careful cuz we need to convert the 3 cm to mm. 1 cm = 10 mm so 3 cm = 30 mm.
the snail travels 30 mm per minute
6.34 Prenatal vitamins and Autism: Researchers studying the link between prenatal vitamin use and autism surveyed the mothers of a random sample of children aged 24 - 60 months with autism and conducted another separate random sample for children with typical development. The table below shows the number of mothers in each group who did and did not use prenatal vitamins during the three months before pregnancy (periconceptional period). (Schmidt, 2011)
Autism Typical Development Total
No vitamin 111 70 181
Vitamin 143 159 302
Total 254 229 483
(b) Complete the hypothesis test and state an appropriate conclusion.
What is the value of the test statistic for this test? ____ (Please round to two decimal places) What is the p-value associated with this test? _____ (Please round to four decimal places)
The test is to find out if there is a difference in the proportion of the number of autism in two samples differentiated by the use of vitamins.
The test statistic for the test is approximately 2.98
The p-value associated is 0.0028
Reasons:
The given parameters are;
[tex]\begin{array}{|l|c|c|c|}&\mathbf{\underline{Autism}}&\mathbf{\underline{Typical \ Development }}&\mathbf{\underline{Total}}\\No \ vitamin&111&70&181\\Vitamin&143&159&302\\Total&254&229&483\end{array}\right][/tex]
The null hypothesis is H₀; [tex]\hat{p}_1 = \hat{p}_2[/tex]
The alternative hypothesis is Hₐ; [tex]\hat{p}_1 \neq \hat{p}_2[/tex]
Where:
[tex]\hat{p}_1[/tex] = The proportion of the sample that did not use vitamin and had autism
[tex]\hat{p}_2[/tex] = The proportion of the sample that used vitamin and had autism
The test statistics for the difference of two proportions is given as follows;
[tex]Z=\dfrac{\hat{p}_1-\hat{p}_2}{\sqrt{\hat{p}\cdot (1-\hat{p}) \cdot \left (\dfrac{1}{n_{1}}+\dfrac{1}{n_{2}} \right )}}[/tex]
Where;
n₁ = 181, n₂ = 302, [tex]\hat p_1 = \dfrac{111}{181}[/tex], [tex]\hat p_2 = \dfrac{143}{302}[/tex], [tex]\hat p = \dfrac{111 + 143}{181 + 302 } = \dfrac{254}{283}[/tex]
[tex]The\ test\ statistics,\, Z=\dfrac{\dfrac{111}{181}-\dfrac{143}{302}}{\sqrt{ \dfrac{254}{283}\cdot (1-\dfrac{254}{283}) \times \left (\dfrac{1}{181}+\dfrac{1}{302} \right )}} \approx 2.98[/tex]
The test statistic for the test, Z ≈ 2.98
From the Z-table, we have Z > 2.98 = 1 - 0.9986, therefore, given that the
alternative hypothesis [tex]\hat p_1 \neq \hat p_2[/tex], the p-value is 2 × (1 - 0.9986) = 0.0028
The p-value associated with the test is 0.0028
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Find the real distinct value
Answer:
Step-by-step explanation:
it has real roots if disc.≥0
p²-4×2×3≥0
p²≥24
|p|≥2√6
p≥2√6
or
p≤-2√6
what is the sequence of 1. 4. 6. 24. 26
Answer:
Multiply by 4, then add 2
Step-by-step explanation:
1*4 = 4
4 + 2 = 6
6*4 = 24
24 + 2 = 26
and so on...
Estimate a 15% tip on a dinner bill of 69.85 by first rounding the bill amount to the nearest ten dollars
Answer:
10.5$
Step-by-step explanation:
Nearest 10 dollar: 70$
since the tip is 15% u take the 15 and divide it by a 100
amd than multiply the answer with 70$
the answer will be 10.5$
Li enters a competition to guess how many jelly beans are in a jar.
Li’s guess is 345 jelly beans.
The actual number of jelly beans is 300.
What is the percent error of Li’s guess?
Answer:
15
Step-by-step explanation:
345-300 X 100 = 15%
300
Answer:
Percent error =
15%
Li’s guess was off by
15%.
Step-by-step explanation:
TTM </3
Write your answer in a + bi form.
A=___
B=___
Answer:
Step-by-step explanation:
[tex]\frac{-3+7i}{-6-7i} \times \frac{-6+7i}{-6+7i} =\frac{18-21i-42i-49i^2}{(-6)^2-(7i)^2} \\=\frac{18-63i -49(-1)}{36-49i^2} \\=\frac{18+49-63 i}{36-49(-1)} \\=\frac{67-63i}{36+49} \\=\frac{67-63i}{85} \\=\frac{67}{85} +(\frac{-63}{85} )i\\[/tex]
[tex]a=\frac{67}{85} \\b=\frac{-63}{85}[/tex]
I’ll give 50 points if you can help
Answer:
x = 6 degrees
Step-by-step explanation:
A straight line is 180 degrees and we can make out three angles the form it, this means the three of them add to 180 using the straight angle theorem:
5x + x + 54 + 90 = 180
6x + 144 = 180
6x = 36
x = 6
Hey can anyone help with this problem pls and ty !
Step-by-step explanation:
(x + 20)º and (4x - 5)º are supplementary angles, meaning the sum of their angles = 180º.
(x + 20) + (4x - 5) = 180
5x + 20 - 5 = 180
5x + 15 = 180
5x = 165
165/5 = 33
Answer: x = 33
pls pls pls help help help pls this is important to me look at the picture
Answer:
here this should be right
I dont know.. Please anwser this
If k and l are parralel, that means if you move them to each other, or shift k, you will get the same angle as ABC. Thus, it's still going to be 19 degrees.
help please
Sorry if it’s blurry
Find the value of g(5) if
g(x) = { -2 x<-3
5 -3< x <6
4x x> 6
A) 6
B) 20
C) 5
D) -10
Answer:D
Step-by-step explanation:
Question 9 of 10
The two lines below are parallel. If the slope of the red line is what is the
slope of the green line? Use a slash mark (/) as a fraction bar if necessary.
Answer:
if the lines are parallel, that means they have to have the same slope in order to stay parallel to one another. so the slope of both the green and red lines is 1/5
Eduardo had some
bubble tape. He gave 5
⅙ feet to his friends and
now he has 2 ¼ feet left.
How much bubble tape
did Eduardo start with?
first correct answer gets brainlist
Answer:
7 5/12 feet of tape
Step-by-step explanation:
Find the LCM and add the fractions in this case is 12
I need helpp plz I will mark brainliest and i will follow but plz help me
Answer:
up 5 and 1.5 and -6 and 6 (if im not mistaking)
Step-by-step explanation
What is the midpoint of AC on the grid below?
Answer: Coordinates of the point E of the middle AC (-1 ; 1 )
Step-by-step explanation:
The middle of AC can be calculated by the formula :[tex]\sf \displaystyle M=\left (\frac{x_1+x_2}{2} \ ; \ \frac{y_1+y_2}{2} \right ) =(x_m \ ; \ y _m )[/tex] In our case :A(2 ; 4) ; C(-4 ; -2) Then :[tex]\sf \displaystyle M=\left (\frac{2+(-4)}{2} \ ; \ \frac{4-2}{2} \right ) =(-1 \ ; \ 1 )[/tex] Coordinates of the point E of the middle AC (-1 ; 1 )
-When invested at an annual
interest rate of 7% an account
earned $581.00 of simple
interest in one year. How much
money was originally invested in
account
Answer:
$8300
Step-by-step explanation:
First, you need to know the formula for this type of question.
The formula is I = Prt. These variables are: I = Interest, P = Principle investment, r = Rate, and t = Time.
Your equation will be 581 = P(0.07)(1), since 0.07*1 is 0.07, you'll earn only 7% interest.
So, we broke down the equation to 581 = P(0.07), and you have to isolate P.
Since you have to isolate P, you divide 0.07 from both sides of the equation, which is 581/0.07 = 8300.
So, your principle investment is $8300.
Good luck!