Answer: All real numbers are solutions.
Step-by-step explanation:
−2(3x+2)≥−6x−4
Step 1: Simplify both sides of the inequality.
−6x−4≥−6x−4
Step 2: Add 6x to both sides.
−6x−4+6x≥−6x−4+6x
−4≥−4
Step 3: Add 4 to both sides.
−4+4≥−4+4
0≥0
Helppppp please :(((((
Which equation represents a line which is parallel to the line 7x - y = 4?
Answer:
Step-by-step explanation: step : Place the given line’s equation in slope- intercept form y = mx + b. A line parallel to this line will have the same slope.
7x - y = 4. Yields y = 7 x - 4. Therefore y = 7x - 5 is the correct answer.
please help me i’ve been struggling PLEASE !!
Answer:
1. s=43
2. s=148
3. s=137
Step-by-step explanation:
(x + 13y) + 8y=
:\ This is so confusing
Answer:
x+21 y
Step-by-step explanation:
Marc is planning a holiday for 4 people for 7 days.
Here are the costs for the holiday for each person.
Travel
£250
Hotel
£50 for each day
Spending money £350
Work out the total cost of the holiday for 4 people for 7 days.
Answer:
£3,800
Step-by-step explanation:
The computation of the total cost is shown below;
Each person cost is
Travel cost £250 (assume for 7 days)
Hotel cost £50 × 7 days = £350
Spending money £350 (assume for 7 days)
Cost for each person is £950
Since there are four persons, so the total cost would be
= £950 × 4 peoples
= £3,800
I need help I cant find my answer
Factor: -12 - 20
Answer 240
Step-by-step explanation: You multiply -12 x -20 which makes a positive bcuz negative x negative is positive and get 240
A number consists of two digit whose sum is five
when the digit irreversible, the no. become greater by nine .find the number
Answer:
23
Step-by-step explanation:
Two pencils and a ruler cost 98 cents in total. One pencil and 2 rulers cost $1.24 in total. Find the cost of each item.
Answer:
2.16
Step-by-step explanation:
r = cost of ruler
p = cost of pencil
r = 2p
6r + 15p = 2.16
Substitute 2p in place of r in 2nd equation and solve for p
6(2p) + 15p = 2.16
12p + 15p = 2.16
27p = 2.16
what is the point slope form of (2,4), m=1/2
Answer:
y=1/2x+3
Step-by-step explanation:
y=1/2x+b
b=3
can someone please help me
a restaurant makes a sandwich that has 1/4 pound of ham to 3 slices of bacon. If 3 pounds of ham was used in a day. how many slices of bacon were needed?
Answer:whvasgs
Step-by-heurbdstep explanation:
4/5 ÷ 1/2 – 3/4 × 3/5( these are fractions)
Answer:
23/20 or 1 3/20 or 1.15
Answer:
1 3/20
Step-by-step explanation:
This year, there are 220 farmers raising chickens in the county. This is a 30% increase over last year. How many farmers raised chickens last year?
Answer:
169 farmers raised chickens last year.
Step-by-step explanation:
Given that:
Number of farmers raising chickens this year = 220
This is 30% more than previous year.
Let,
100% be the percent of previous year and x be the number of farmers who raised chicken previous year.
Percent of farmers who raised chickens this year = (100+30)% = 130%
130% of x = 220
[tex]\frac{130}{100}x = 220[/tex]
1.3x = 220
Dividing both sides by 1.3
[tex]\frac{1.3x}{1.3}=\frac{220}{1.3}\\x=169.23[/tex]
Rounding to nearest whole number
x = 169
Hence,
169 farmers raised chickens last year.
$72 game with a 20% discount and 7.5% tax
Answer:
Cost of game after discount = 72 - 20% of 72 = $57.6
Cost after tax = 57.6 + 7.5% of 57.6 = $61.92
So, the required cost is $61.92.
Amanda drinks 2 1/2 pints of milk a day. How much is this in cups?
Answer: A pint is equal to 2 cups (example: a large glass of milk!) When measuring many cups of liquid all put together we might want to use quarts. A quart (qt) is the same thing as 4 cups or 2 pints.
Step-by-step explanation:
Answer:
2 cups
Step-by-step explanation:
solve for a
4(2a - 1) = -10(a - 5)
Answer:
A = 3
Step-by-step explanation:
8a-4=-10a+50
8a-4+4=-10a+50+4
8a=-10a+54
8a+10a=-10a+54+10a
18a=54
54 / 18 = 3
A = 3
How many degrees is 1.2 rotations counter clockwise?
Answer:
The expression is already in decimal form.
1.2
Step-by-step explanation:
(づ ̄ ³ ̄)づ
Suppose that 65% of high school students eat breakfast before going to school. A random sample of 500 high school students were surveyed. Let X = the number of high school students in a random sample of size 500 who eat breakfast before going to school.
1. Explain why X can be modeled by a binomial distribution even though the sample was selected without replacement.
2. Use a binomial distribution to estimate the probability that 300 or fewer high school students in the sample eat breakfast before going to school.
3. Justify why X can be approximated by a Normal distribution.
4. Use a Normal distribution to estimate the probability that 300 or fewer high school students in the sample eat breakfast before going to school.
Answer:
1.) very large sample size
2.) 0.11326
3.) np and n(1-p) should be ≥ 10
4.) 0.010809
Step-by-step explanation:
Given :
p = 0.65 ; n = 500
2.)
P(x ≤ 300)
P(x =x) = nCx * p^x * (1 - p)^(n - x)
Using a binomial probability calculator :
P(x ≤ 300) = 0.11326
To justify why if it can be approximated using a normal distributon :
np and n(1-p) should be ≥ 10
np = 500 * 0.65 = 325
n(1-p) = 500(1 - 0.65) = 175
4.) probability using normal distribution estimate:
Mean, m = np = 500 * 0.65 = 325
Standard deviation, s = sqrt(n*p*(1-p)) = sqrt(500*0.65*(1 - 0.65)) = sqrt(113.75) = 10.665
x ≤ 300
Correction:
x = x + 0.5 = 300 - 0.5 = 300.5
P(x ≤ 300.5)
Zscore = (x - m) / s
Zscore = (300.5 - 325) / 10.665
Zscore = - 24.5 / 10.665
Zscore = - 2.297
P(Z ≤ - 2.297) = 0.010809
X can be modeled by a binomial distribution even though the sample was selected without replacement because the sample size is too large, and the probability that 300 or fewer high school students in the sample eat breakfast before going to school is 0.010809.
Given :
Suppose that 65% of high school students eat breakfast before going to school. A random sample of 500 high school students was surveyed. Let X = the number of high school students in a random sample of size 500 who eat breakfast before going to school.1) X can be modeled by a binomial distribution even though the sample was selected without replacement because the sample size is too large.
2) The formula for the binomial distribution is given by:
[tex]\rm P (x=x)= \; ^nC_x \times p^x \times (1-p)^{n-x}[/tex]
Now, substitute the known terms in the above formula.
[tex]\rm P (x\leq 300)= \; ^{500}C_x \times (0.65)^x \times (1-0.65)^{500-x}[/tex]
Simplify the above expression.
[tex]\rm P(x \leq 300)=0.11326[/tex]
3) Now, the value of np and n(1 - p) is given below:
np = 500 [tex]\times[/tex] 0.65 = 325
n(1 - p) = 500 [tex]\times[/tex] (1 - 0.65) = 175
X can be approximated by a Normal distribution because the value of np and n(1 - p) is greater than or equal to 10.
4)
First, determine the standard deviation.
[tex]\rm \sigma = \sqrt{np(1-p)}[/tex]
[tex]\rm \sigma = \sqrt{500\times 0.65 \times (1-0.65)}[/tex]
[tex]\rm \sigma = 10.665[/tex]
Now, the z-score can be calculated by using the formula:
[tex]\rm z =\dfrac{X-\mu}{\sigma}[/tex]
[tex]\rm z =\dfrac{300.5-325}{10.665}[/tex]
z = -2.297
So, the probability that 300 or fewer high school students in the sample eat breakfast before going to school is given by:
[tex]\rm P(Z\leq -2.297) = 0.010809[/tex]
For more information, refer to the link given below:
https://brainly.com/question/795909
ABC is a right triangle. If AC=4 and BC=10, find AB. Leave your answer is the simplest radical form.
Answer:
√116 or √84Step-by-step explanation:
ABC is a right triangle
AC=4, BC=10, AB = ?Here we have two options:
1. AB is hypotenuse, then:
AB = [tex]\sqrt{AC^2 + BC^2} = \sqrt{4^2 + 10^2} = \sqrt{16 + 100} =\sqrt{116}[/tex]2. BC is hypotenuse and AB is the second leg, then:
AB = [tex]\sqrt{BC^2 - AC^2} = \sqrt{10^2 - 4^2} = \sqrt{100 - 16} = \sqrt{84}[/tex]9. (4 x 10) (3.25 x 10)
Answer:
1300
Step-by-step explanation:
(4 x 10) (3.25 x 10)=40*32,5=1300
Answer:
1300
Step-by-step explanation:
(4×10) (3.25×10)
40 × 32.5= 1300
Solve by factoring.
s2 + 8s + 15 = 0
What is the inverse of the following statement? If two triangles are congruent, then their corresponding angles are congruent.
Answer:
If two triangles are not congruent, then their corresponding angles are not congruent.
Step-by-step explanation:
The inverse is when both the hypothesis and conclusion are negative (if not p, then not q).
Answer:
If two triangles are not congruent, then their corresponding angles are not congruent.
Find the number for x. (Divide)
8.2x=164
Can someone tell me if I’m right on this one?
Answer:
No, it's -1 + -6 = -7
Step-by-step explanation:
The first arrow goes left -1 and the other one goes left -6, to get -7
Is (-4,-6) a solution?
2x + 3y <-9
x - 2y 2 - 4
(-4, -6)
i don't know
Step-by-step explanation:
Someone please help?
Answer:
42°
Step-by-step explanation:
its 42° because its smaller than 48° and that's the only option smaller lol
Answer:
42 degrees
Step-by-step explanation:
The angle forms a right angle, which in total would be 90 degrees.
48 + 42 would be the only option because it is the only one that adds up to 90 degrees.
Help I’m so close and I really wanna sleep ;-;
Answer:
8
Step-by-step explanation:
Preety Sure is 8
Answer:
8
Step-by-step explanation:
Since it starts from 6, count by +1 till you get at the blue dot
HELP ASAP , WILL GIVE MOST BRAINIEST
Use the drawing tools to graph the solution to this system of inequalities on the coordinate plane.
y> 2x + 4
x+y s6
The inequalities y > 2x + 4 and x + y ≤ 6 can be plotted on the coordinate plane as shown in the picture.
What is inequality?It is defined as the expression in mathematics in which both sides are not equal they have mathematical signs either less than or greater than known as inequality.
We have two inequalities:
y > 2x + 4
x + y ≤ 6
We can plot the above inequality on the coordinate plane.
The inequalities representing the region between the two lines the lines are:
y = 2x + 4
x + y = 6
y > 2x + 4 (dashed line on the graph)
x + y ≤ 6 (solid line on the graph)
Thus, the inequalities y > 2x + 4 and x + y ≤ 6 can be plotted on the coordinate plane as shown in the picture.
Learn more about the inequality here:
brainly.com/question/19491153
#SPJ1
HELP MEE ITS FOR MATH ABD NOBODY HAD SAID WHAT TBE STORE MADE FROM HIS SALES
Answer:
727.5
Step-by-step explanation:
If Jarrod made 3 percent in commissions then y have to find what 97 percent of 750 is
The equation set up would be .97 times 750
750 times .97= 727.5
find the
volume or air
4m
by
5m which is only 3m
high
Answer:
volume of cuboid=l×w×h
volume of cuboid=4×5×3=60cm³
can't figure out this problem can anyone help if so thank you
Answer:
10th term of the sequence = 0.537
Step-by-step explanation:
First three terms of the sequence are → 5, 4, [tex]\frac{16}{5}[/tex]..........
Ratio of 2nd and 1st term of the sequence = [tex]\frac{4}{5}[/tex]
Ratio of 3rd and 2nd term of the sequence = [tex]\frac{\frac{16}{5} }{4}[/tex]
= [tex]\frac{4}{5}[/tex]
Therefore, ratio between every successive term to the previous term is common.
Common ratio 'r' = [tex]\frac{4}{5}[/tex]
First term of the sequence 'a' = 5
nth term of a geometric sequence = [tex]a(r)^n[/tex]
Therefore, nth term of the given term will be [tex]T_n=5(\frac{4}{5})^n[/tex]
Now we have to find the 10 term of the given sequence.
For n = 10,
[tex]T_{10}=5(\frac{4}{5})^{10}[/tex]
= 0.53687
≈ 0.537
Therefore, 10th term of the sequence is 0.537