Answer:
the product of 2a+3b-c and2a+3b-c is(2a+3b-c)²
If x = -4 and y=3, what is
the value of x – 3y² ?
Answer:
-31
Step-by-step explanation:
(-4)-3[tex](3)^{2}[/tex]
-4-3(9)
-4-27
-31
The scale on a map is 2 cm represents 1 km.
The distance between two villages on the map is 9 cm.
What is the actual distance between the two villages?
Answer:
4.5km
Step-by-step explanation:
2cm=1km
9cm=xkm
so to get from 2 to 9 all you do is multiply by 4.5 so do this the km and you will get 4.5km :)
will and olly share £80 in the ratio 3 : 2
Answer:
Will's share = 48
Olly's share = 32
Step-by-step explanation:
Will's share : Olly's share = 3:2
Will's share = 3x
Olly's share = 2x
3x + 2x = £ 80 {Combine like terms}
5x = 80 {Divide both sides by 5}
x = 80/5
x = 16
Will's share = 3x = 3*16 = 48
Olly's share = 2x = 2*16 = 32
what is th eqivalent expression for 4x 2/3
8x+4 (4x+3) = 4 (6x+4)-4 help
Answer:
0
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
8x+4(4x+3)=4(6x+4)−4
8x+(4)(4x)+(4)(3)=(4)(6x)+(4)(4)+−4(Distribute)
8x+16x+12=24x+16+−4
(8x+16x)+(12)=(24x)+(16+−4)(Combine Like Terms)
24x+12=24x+12
24x+12=24x+12
Step 2: Subtract 24x from both sides.
24x+12−24x=24x+12−24x
12=12
Step 3: Subtract 12 from both sides.
12−12=12−12
0=0
Answer:
All real numbers are solutions.
What is the surface area of the rectangular prism?
PLSSS HELP GUYS I NEED HELP ASAP
Answer:
348 ignore this eoendndisiwjd
Please help me answer this will give brainlst
Answer:
17° and 73°
Step-by-step explanation:
For two complementary angles, the sum of angles is equal to 90 degrees.
Let other angle = x
First angle = 5+4x
ATQ,
5+4x+x=90
This is the equation that shows the given problems.
5+5x=90
5x = 85
x = 17°
Other angle = 17
First angle = 5+4x
= 5+4(17)
= 73°
So, the other two angles are 17° and 73° respectively.
how many diffrent ways can you take 2 donets out of 12
Answer:
¹²C₂ = [tex]\frac{12*11}{2!}[/tex] = 66
i buy 5 metres of cloth at x per metre. How much change will i get from 7,000 NGN
Answer:
charge it 1400 per meter
Step-by-step explanation:
given data
rate = x per meter
cloth = 5 meter
price = 7000
solution
we get here change that i get is x
we get 5 meter at x rate so
5 × x = 7000 ...........1
x = [tex]\frac{7000}{5}[/tex]
x =
so we charge it 1400 per meter
Assume the random variable x is normally distributed with mean u = 86 and standard deviation o = 5. Find the indicated probability
P(x <83)
Answer:
2
Step-by-step explanation:
Five cats each ate 1/3 cup of canned food and 1/3 cup of dry food.
How much food did they eat altogether? Enter the answer in simplest form.
Answer:
Step-by-step explanation:
5/ 1/3=1.6x2=3.2
Answer: They are 3⅓ cups of food altogether.
Step-by-step explanation: 5 Cats. Each gets 1/3 canned plus 1/3 dry
5/3 + 5/3 = 10/3
Simplify that to 3⅓ cups.
PLEASE HURRY AND ANSWER
The laundry machines in Stephanie's building take 5 quarters each (5 quarters to wash and 5 quarters to dry). If Stephanie washes and dries 3 loads of laundry, how much does she pay?
Answer: 1.50
Step-by-step explanation:
1 load= 50 cents 2 loads = 1 dollar 3loads= 1.50 dollar
Answer:
30 quarters, $7.50
Step-by-step explanation:
Multiply 25 (value of a quarter) by 5
Then, add that (125) to itself: 125+125=250
Then, since it's 3 loads, multiply 250 by 3: 250x3= 750
Divide by 25 if you want to find out how many quraters there are
The ratio of 6:5 can be expressed as
Answer:
the ratio of 6:5 can be expressed as 6/5
What the answer ? 3 7/8 times 10 1/10 (estimate this product)
URGENT PLEASE HELP
Consider this equation.
cos(0)= -2√5/5
If 0 is an angle in quadrant II, what is the value of sin(0)?
Answer:
I hope this can help
Step-by-step explanation:
The value of sin(0) should be considered as the [tex]\sqrt{5} \div 5[/tex]
Calculation of the value of sin(0):Since the equation is [tex]cos(0)= -2\sqrt 5/5[/tex]
Also in the case when 0 is an angle in quadrant II
So based on this, we can say that value of sin(0) should be considered as the [tex]\sqrt{5} \div 5[/tex]
Learn more about an equation here: https://brainly.com/question/4874021
Four friends participated in a free throw contest. Sean made twice as many
points as Emily. Katle made 7 more points than Sean. Kevin scored 4 points
less than Emily. Together the four friends scored 75 points.
Answer;
Sean got 24 points
Katie got 31 points
Kevin got 8 points
Emily got 12 points
Sorry I cannot give proper explanation because of typo issues.
Hope that can help.
Find the y-intercept. 4) 4x + 3y=-3 A) -3 B) 3 C) -5/2 D) -2/5
Answer:
Please check the explanation.
Step-by-step explanation:
Given the equation
[tex]4x + 3y=-3[/tex]
We know that the value of the y-intercept can be determined by setting x = 0 and determining the corresponding value of y.
Thus,
substituting x = 0 in the equation
[tex]4x + 3y=-3[/tex]
[tex]4(0) + 3y = -3[/tex]
[tex]0+3y = -3[/tex]
[tex]3y = -3[/tex]
divide both sides by 3
[tex]\frac{3y}{3}=\frac{-3}{3}[/tex]
Simplify
[tex]y = -1[/tex]
Therefore, the y-intercept is: -1
Note: it seems that you did not add the right option to chose.
find x in the proportion x:6= 25:5
Step-by-step explanation:
[tex] \frac{x}{6} = \frac{25}{5} \\ [/tex]
[tex] \frac{x}{6} = \frac{5}{1} \\ [/tex]
[tex]x = 30[/tex]
Is 1/2 plus 5/12 greater than 1 or less than 1
Answer:
Less than 1
1/2=6/12
6/12+5/12=11/12
11/12<1
#CarryOnLearning
Make it brainliest ty
2.John is playing a video game in which he needs to catch balls. He earns 20 points for each of the first 25 balls that
he catches and 112 times the regular score for every additional ball that he catches. How many points does he earn for
catching 30 balls?
F. 507.5
G. 545
H. 600
J. 650
K. 900
Answer:
F
Step-by-step explanation:
Because I did the math.
Write an equation of the line with a slope of 3 and a y-intercept of 4.5.
Answer:y= 3x + 4.5
Step-by-step explanation:
In ΔKLM, k = 4 cm, l = 3.6 cm and m=2.5 cm. Find the measure of ∠M to the nearest 10th of a degree
Answer:
38
Step-by-step explanation:
Delta math
Solve. Check the solution. t/8 = 15 *
Answer:
the answer is 15 I'm positive
a game show contestant has four doors from which to choose. behind one door is a valuable prize. behind the other doors is worthless junk. what is the probability that the valuable prize will be chosen? give your answer as a ratio and a percent.
Answer:
1:4 or 25%
Step-by-step explanation:
There is a 1 in 4 chance of picking the prize door since there are 4 total doors. This is equal to a 25% chance
Answer:
1-4 so a 25 percent chance of getting a valuable prize
Step-by-step explanation:
1 out of 4 doors has a prize (1-4)
hopefully this helps
Mr.perkins has $120 in a savings account .the interest rate is 5% per year and it is not compounded how much will he have in 2 years
Answer:
The answer is $132
Step-by-step explanation:
120+ (5% of 120) (2)
120+(6)(2)
120+12
=132
Grace hikes 2.5 miles per hour. If she hikes for 5.5 hours, how far will she have gone? HELPPP
Answer:
13.75
Step-by-step explanation:
i did the test
On the following composite figure, the longer edge length is 14 millimeters. The shorter edge length is 8 millimeters. The width of the figure, at its longest point, is 11.3 millimeters. Find the area of the figure. Explain or show how you got your answer. Note: Lines that look parallel are parallel, and angles that look like right angles are right angles.
Answer:
158.2 mm^2
Step-by-step explanation:
You can think of this figure as a rectangle in which a triangle from the bottom was moved to the top.
The area of the figure is the area of the rectangle.
A = LW = 14 mm * 11.3 mm = 158.2 mm^2
Solve the equation. 3(n - 7) =
-30
A -3
B 3
C -9
D 23
Answer:
n = -3
Step-by-step explanation:
3(n - 7) = -30
3n - 21 = -30
3n = -9
n = -3
A population of plastic chairs in a factory has a weight's mean of 1.5 kg and a standard deviation of 0.1 kg . Suppose a sample of size 100 is selected and X is used to estimate u . What is the probability that the sample mean will be within +0.02 of the population mean ? ( 5 points ) B ) At 95 % confidence , how large a sample should be taken to obtain a margin of error of 0.02 for the estimation of a population proportion ? Assume that past data are not available for developing a planning value for p
Answer:
huntombros avatar
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A data set has a mean of 80. The value 83 lies one standard deviation above the mean. What is the margin of error?
Answer:
3
Step-by-step explanation:
Answer:
it will be 6
Step-by-step explanation:
The standard deviation is 83 – 80 = 3. Since margin of error is two times the standard deviation, it must equal 6.