Answer:
A=wl
w=width
l=length
Step-by-step explanation:
Answer:
a=lw
Step-by-step explanation:
If you have a rectangle that was 2 inches wide, and 4 inches long, you would multiply the length(l) by the width(w) to get the area(a).
Solve the system of equations 2x-4y=-2 and -x+8y=-23 by combining the equations.
Answer:
(−9,−4)
Step-by-step explanation:
Let xy=6 and x2 + y2 = 23 what is the value of (x+y)^2?
[Hint expand out (x+y)^2?]
Answer:
[tex](x + y) {}^{2} \\ = x {}^{2} + 2xy + y {}^{2} \\ = x {}^{2} + y {}^{2} + 2xy \\ = 23 + 2 \times 6 \\ = 23 + 12 \\ = 35 \\ \\ therefore \: the \: value \: \\ of \: (x + y) {}^{2} is \: 35.[/tex]
35 is the correct answer.....Hopes to get BRAINLIEST......Thank you ☺️
which of the following functions has a range of all real numbers?
Answer:
c
Step-by-step explanation:
The dots cannot intersect
If the snow is falling at a rate of 1 2/3 inches per hour, how many hours will it take to snow 12 inches?
Answer:
It'll take 7.2 hours
Step-by-step explanation:
(5/3)in 12in
--------- x --------
1 hr x hr
Cross multiply and you get
(5/3)x = 12
Then you divide 12 by (5/3) and you get that x = 7.2 hrs
Answer:
7.2 hours
Step-by-step explanation:
1 2/3 inches per hour = 5/3 inches per hour
12 inches = 36/3 inches
(36/3) / (5/3)
(36/3) x (3/5)
108/15
7.2 hours
What are dot plots used for?
A. Dot plots are best used to show a distribution of data.
B. Dot plots are best used to show answers to a non-statistical question.
C. Dot plots are best used to help you ask questions.
D. Dot plots are best used to help you tally data.
Answer:
A
Step-by-step explanation:
Help math hv 30 minutes
Answer:
8 milk cartons and 4 dollars
Answer:
It's 8 milk cartons and 4 dollars/Price
Multiply. Write the answer in simplest form.
5/6 x 2/9
Answer:
5/27
Step-by-step explanation:
evaluate the expression 81-8^2
Answer:
17
Step-by-step explanation:
Do the exponent first, then subratct it to 81
Answer:
thats easy 17
Step-by-step explanation:
Can you help me i will give you a branlist please
Lori buys a $1500 certificate of deposit (CD) that earns 6% interest that compounds monthly. How much will the CD be worth in:
Answer:
Money = (1500)e^(0.06t)
t = num of months
Money = Money at end of that tiem period
write an equation to solve for x what is the value of x will mark brainious this is very confusing for me
Answer:
equation: 3x - 2 + 4x - 9 + 3x - 9 = 180x = 20Step-by-step explanation:
add all internal angles
∠H + ∠I + ∠J = 180
where:
∠H = 3x - 2
∠I = 4x - 9
∠J = 3x - 9
plugin the values into the ∠H + ∠I + ∠J = 180 formula:
equation: 3x - 2 + 4x - 9 + 3x - 9 = 180
combine similar terms: 3x + 3x + 4x = 180 + 2 + 9 + 9
simplify: 10x = 200
divide 10 both sides: x = 20
4 A photographer enlarges a picture to
hang on the wall. The original picture is
5 inches long and 4 wide. The new
picture is 22 inches long and 17.6 inches
wide. What scale factor did the
photographer use?
I
Answer:
He enlarged the photo by 4.4 times than the original size.
Step-by-step explanation:
22/5=4.4
4.4*4=17.6
4.4*5=22
The formula for converting miles into feet is F=5280m. If m=3, evaluate to find F, the number of feet in 3 miles
Answer:
15,840?
Step-by-step explanation:
if f=5280m and m=3 then 5280x3= 15,840
Good luck!
What is the Slope of the line
Answer:
[tex]m=\frac{-3}{4}[/tex]
Step-by-step explanation:
Slope Formula: [tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]
Simply plug in 2 coordinates into the slope formula to find slope m:
[tex]m=\frac{-4-(-1)}{5-1}[/tex]
[tex]m=\frac{-4+1}{4}[/tex]
[tex]m=\frac{-3}{4}[/tex]
A psychologist has designed an index to measure the social perceptiveness of elementary school children. The index is based on ratings of a child's responses to questions about a set of photographs showing different social situations. A random sample of 16 elementary school children was chosen, and their index measurements were recorded. Assume that the index measure in the population is normally distributed. The 95% confidence interval created from this data is (56.29, 65.09). This interval indicates:__________.Choose one or more:a. The average index of elementary school children must be 60.69.b. The standard deviation of the sample is about 10% smaller than the population standard deviation.c. That if we take many samples from this population 95% of them will have a sample mean between 56.29 and 65.09.d. 95% of all elementary school children in this district have indices between 56.29 and 65.09.e. 4.40 is 95% of the true average of the index for all elementary school children.f. We are 95% confident that the average index for all elementary school children is between 56.29 and 65.09.
Complete Question
A psychologist has designed an index to measure the social perceptiveness of elementary school children. The index is based on ratings of a child's responses to questions about a set of photographs showing different social situations. A random sample of 16 elementary school children was chosen, and their index measurements were recorded. Assume that the index measure in the population is normally distributed. The 95% confidence interval created from this data is (56.29, 65.09). This interval indicates:__________.Choose one or more:
a. The average index of elementary school children must be 60.69.
b. The standard deviation of the sample is about 10% smaller than the population standard deviation.
c. That if we take many samples from this population 95% of them will have a sample mean between 56.29 and 65.09.
d. 95% of all elementary school children in this district have indices between 56.29 and 65.09.
e. 4.40 is 95% of the true average of the index for all elementary school children.
f. We are 95% confident that the average index for all elementary school children is between 56.29 and 65.09.
Answer:
The correct option is a and f
Step-by-step explanation:
From the question we are told that
The sample size is n = 16
The 95% confidence interval is (56.29, 65.09)
Generally the sample mean(average index of elementary school children) is mathematically represented as
[tex]\= x = \frac{65.09 + 56.29}{2}[/tex]
=> [tex]\= x = 60.69 [/tex]
Four friends paid
for entrance to a
boil for $8 each.
They shared 2
bloody mary's that
were $6 each.
The expression:
(4 x 8 + 2 x 6) = 4
gives each
friend's share of
the cost.
Answer:
what question?
Step-by-step explanation:
there s nota a questoin
What is the converse of the conditional statement?
If x is even, then x + 1 is odd.
A. If x is not even, then x + 1 is not odd.
B. lf x + 1 is odd, then x is even.
C. If x + 1 is not odd, then x is not even.
D. If x is even, then x + 1 is not odd.
Answer:
If x+1 is odd, then x is even B
Step-by-step explanation:
Conditional: If p, then q
Converse: If q, then p
p= x being even
q, x+1 being odd.
A decimal is never a rational number
True
False
Answer:
False
Step-by-step explanation:
Decimals such as 1.2, 4.95, 2.28914 are all rational numbers.
If it doesnt end then its irrational, such as pi. but we know the exact amount of the numbers above therefore its rational. Also it can be put in fraction form which is another way to determine if rational or not.
IA:B 7:8 an B:C 12:7 find A C in its simplest form.
b. 3:2
C. 19:6
a. 2:3
d. 4:5
Answer:
3:2
Step-by-step explanation:
A:B 7:8 an B:C 12:7 find A C in its simplest form.
ans;
3:2
Sienna earns $108 for working 9 hours. Ted earns $77 for working 7 hours. Colby earns $92
for working 8 hours. Jennifer earns $115 for working 10 hours. Who has the highest hourly
wage?
Answer:
Sienna
Step-by-step explanation:
Create and solve a quadratic equation that has 1 real solution
Answer:
x^2 - 4x + 4 = 0
x = 2
Step-by-step explanation:
(x - 2)(x - 2) = 0
x^2 - 2x - 2x + 4 = 0
x^2 - 4x + 4 = 0
The equation is:
x^2 - 4x + 4 = 0
It is a quadratic equation because of the x^2 term.
Now we solve it by factoring.
x^2 - 4x + 4 = 0
(x - 2)(x - 2) = 0
x - 2 = 0 or x - 2 = 0
x = 2 or x = 2
The only solution is x = 2.
What is the probability of getting orange
or blue and a multiple of 3?
Answer:
the answer is 1/2 because of the multiple of 3
Jim bought a new freezer last winter. When he plugged it in at noon the temperature
inside the freezer was 21°C. That night the temperature inside the freezer was -15°C. By
how many degrees Celsius did the temperature change?
Answer:
The temperature inside the freezer dropped 36°C.
Step-by-step explanation:
You need to subtract the new temperature from the old temperature to get the difference. That's a pretty cool freezer! (Pun intended!)
I hope this helps!
Determine the degree of the polynomial.
8a9 – 2a + 1
Answer:
Determine the degree of the polynomial.
8a9 – 2a + 1
Step-by-step explanation:
8a9 – 2a + 1
Can someone help ? ASAP thanks
Answer:
2,5 then 17 20 then keep adding 15 for x and y
What is the correct answer? please
help me please
*I select an answer, but I don't know if it's right or wrong*
Answer:
yes your answer it right.... brainliest plsss
Ellie drove 13 miles in 2/5 hours. if she drove at a constant rate, how fair did she travel in one hour? enter your answer as a whole number, proper fraction, or mixed number in simplest form.
Answer:i think its 3.25 miles
Step-by-step explanation:
Answer:
5.2
Step-by-step explanation:
13÷2.5=5.2
I have no doors but I have keys, I have no rooms but I do have a space, you can enter but you can never leave. What am I?
Is it a computer keyboard?
The price of a stock steadily decreased by a total of $123 over the past 14 months.
What happened when the stock decreased by $123?