Answer:
29
Step-by-step explanation:
plug in c=9 and d=7 to the equation.
it'll look like this
4(9) - 7
4 x 9 is 36
36 - 7 = 29
Final answer = 29
Find the value of each trigonometric ratio.
Answer:
SinZ=perpendicular/hypotenuse=15/17 is your answer
write each equation in slope intercept form 9x + 35 = -5y. 2y - 6 = -6x. -11 - 7y = -56
Answer:
y= -9/5x -7
y= -3x +2
y= 45/7
Find the product of the sum and difference. (Please try to answer all of them If not it's OK!)
Answer:
[tex]16 {x}^{2} - 9[/tex]
Step-by-step explanation:
Use the F.O.I.L. method
Answer:
1) [tex]81c^{2}[/tex]-1
2) [tex]16x^{2}[/tex]-9
3) [tex]-4y^{2}[/tex]+25
4) [tex]-w^{2}[/tex]+16
Step-by-step explanation:
Consider the following pair of equations: y = x + 4 y = −5x − 2 Explain how you will solve the pair of equations by substitution. Show all the steps and write the solution in (x, y) form.
Answer:
(-1, 3)
Step-by-step explanation:
to solve using substitution, you have to know the value of either x or y. in this example, they gave you the value of y already: y=x+4.
this means you can substitute the y for (x+4). if we substitute y for (x+4) in the equation y=-5x-2, we get this:
(x+4)=-5x-2
then solve for x
6x=-6
so x=-1
since we know the x value, we can solve for y
y=x+4
y=-1+4
y=3
so the final answer is (-1, 3)
Answer:
(- 1, 3 )
Step-by-step explanation:
Given the 2 equations
y = x + 4 → (1)
y = - 5x - 2 → (2)
Substitute y = x + 4 into (2)
x + 4 = - 5x - 2 ( add 5x to both sides )
6x + 4 = - 2 ( subtract 4 from both sides )
6x = - 6 ( divide both sides by 6 )
x = - 1
Substitute x = - 1 into either of the 2 equations and evaluate for y
Substituting into (1)
y = - 1 + 4 = 3
solution is (- 1, 3 )
1. Average Senior High School annual cost of tuition fee for all private schools in Cavite last year was 46,300 a random sample of costs this year for 45 private schools indicated that the sample mean was 47,800 and a sample standard deviation was 5600 at the 0.10 level of significance, is there sufficient evidence to conclude that the cost has increased?
Solution:
1. State of hypotheses
2. The level of significance, critical region, and df if any
3. Compute for the value of one sample z-test or t-test
4. Decision rule
5. conclusion
Answer:
Step-by-step explanation:
H0 : μ = 46300
H1 : μ > 46300
α = 0.05
df = n - 1 = 45 - 1 = 44
Critical value for a one tailed t-test(since population standard deviation is not given).
Tcritical = 1.30
The test statistic :(xbar - μ) ÷ (s/sqrt(n))
The test statistic, t= (47800-46300) ÷ (5600√45)
t = 1500
t = 1500 / 834.79871
t = 1.797
The decision region :
Reject H0: if t value > critical value
1. 797 > 1.30
Tvalue > critical value ; We reject H0
Hence, there is sufficient evidence to conclude that cost has increased.
Can someone help me wit this problem
PLEASE HELP ASAP!!!! I AM BEGGING YOU!
Answer: Standard, and 65,000 its easy as that
Step-by-step explanation:
Hope this helps
Help please I need help
Answer:
Step-by-step explanation:
sxsnd mfs bfbbnmh gdfkcsdkhcdfv Im sorry but i dont under stand this have a good day :)
A soccer ball went on sale from $30 to $24. By what percentage was the price of the
soccer ball reduced?
A. 6%
B. 60%
C. 40%
D. 20%
help me please :,)
Answer:
D. 20%
Step-by-step explanation:
if you subtract 24 from 30 you get 6.
6 times 5 is 30
therefore, 6 is one fifth of 30.
what is 1/5 of 100%?
20%
hope this helps ya out ;)
20 percent of original price reduced. Therefore, option D is the correct answer.
What is percentage?Percentage is defined as a given part or amount in every hundred. It is a fraction with 100 as the denominator and is represented by the symbol "%".
Given that, a soccer ball went on sale from $30 to $24.
Reduce in percentage = (Original price - New price)/Original price ×100
= (30-24)/30 ×100
= 6/30 ×100
= 1/5 ×100
= 0.2×100
= 20%
Therefore, option D is the correct answer.
To learn more about the percentage visit:
brainly.com/question/24159063.
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pls help!! will give brainliest!
Answer:
It has more than 2 equal sides
Step-by-step explanation:
A model train is 9 centimeters long. The actual engine is 18 meters long. What is the scale of the model? Tracy has a model train set that is 59 centimeters long. How long would the train be in real life?
Answer:
1 cm : 2m
1 cm = 2m
118m
Step-by-step explanation:
A scale drawing is a reduced form in terms of dimensions of an original image / building / object
the scale drawing is usually reduced at a constant dimension
scale of the drawing = original dimensions / dimensions of the scale drawing
18 / 9 = 2 : 1
59 x 2 = 118
Is this right? Please help me
Answer:
yeah its correct
Step-by-step explanation:
Answer:
[tex]\boxed {\mathfrak {B) 1.6}}[/tex]
Step-by-step explanation:
B) [tex]r-value[/tex] [tex]cant[/tex] [tex]be[/tex] [tex]1.6[/tex]
[tex]-1 \leq r\leq 1[/tex]
[tex]-----[/tex]
Of the balloons recently sold by party store, 4 were purple and 8 were other colors. Considering the data, how many of the next 66 balloons sold would you expect to be purple
Answer: 22
Step-by-step explanation:
From the question, we are given the information that of the balloons recently sold by party store, 4 were purple and 8 were other colors. This means that the fraction of those that was purple is:
= 4/(4+8)
= 4/12
= 1/3.
Therefore, if there are 66 balloons, the number expected to be purple will be:
= 1/3 × 66
= 22
There'll be 22 purple balloons
Answer:
22
Step-by-step explanation:
= 4/(4+8)
= 4/12
= 1/3.
= 1/3 × 66
= 22
There'll be 22 purple balloons.
Please find the area and perimeter
Answer:
Area: 54 in² Perimeter: 36 inStep-by-step explanation:
Area:
A = 6 in · 10 in - 2 in · 3 in = 60 in² - 6 in² = 54 in²
Perimeter:
P = 2·6 in + 10 in + 6 in + 3 in + 1 in + 2·2 in = 12 in + 20 in + 4 in = 36 in
which number is in the solution set of the equality x < -8?
A: -2 B: -4 C: -6 D: -10
Answer:
The answer is b
Step-by-step explanation:
Brainliest pls
How many “2 x 2 x 2” cubes will fit into a “4 x 4 x 4” box?
Answer:
2
Step-by-step explanation:
because it is double (×2) so 2 will fit in.
This table shows the calories of several sandwiches at a restaurant. Find the mean and mean absolute deviation of this set of data, and then describe what the mean absolute deviation represents.
Sandwich Calories
242 290
290 280
390 350
The mean and mean absolute deviation of this set of data will be 312. 9 and 0.19 respectively. The mean absolute deviation represents the average distance between each data value and the mean.
What is the mean absolute deviation ?The average distance between each data point and the mean is the mean absolute deviation of a dataset. It offers us an indication of how variable a dataset.
Mean = 312. 9
absolute deviation = 0.19
Hence,the mean and mean absolute deviation of this set of data will be 312. 9 and 0.19 respectively. The mean absolute deviation represents. Average distance between each data value and the mean.
To learn more about mean absolute deviation, refer:
https://brainly.com/question/26462759
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Find the slope of the line that passes through the points (1,-4) and (3,-1).
Answer: E
Step-by-step explanation: I used m.athway
Expand
8(10-c)
........................................................
Answer:
80 - 8c
Step-by-step explanation:
8(10-c)
80 - 8c
The distance from Alison's house to the mailbox is 2/5 mile. The distance from the mailbox to the bus stop is 1/3 mile. What is the total distance from Alison's house to the bus stop? 3/15 11/15 5/6 3/8
Answer:
Option B is correct
Step-by-step explanation:
Given
Distance from Alison's house to the mailbox = [tex]\frac{2}{5}[/tex] miles
Distance from the mailbox to the bus stop [tex]\frac{1}{3}[/tex] miles
The total distance between Alison's house to the bus stop is
[tex]\frac{2}{5} + \frac{1}{3} \\\frac{6+5}{15} \\\frac{11}{15}[/tex]
Hence, option B is correct
Ryan and Danielle competed in a bike race.Ryan biked 11,988 meters and Danielle 13,336 meters.How much more did Danielle bike then Ryan?
Answer:
1348 more meters.
Step-by-step explanation:
Subtract
13336 - 11988 = 1348
Danielle biked 1348 more meters than Ryan
If my answer is incorrect, pls correct me!
If you like my answer and explanation, mark me as brainliest!
-Chetan K
Danielle biked 1348 meters more than Ryan. I hope this helped you out to solve your problem.
NEED HELP! The wind-speed, in miles per hour (mph), was measured every six hours during a day on the Isles od Scilly.
Answer:
That’s not a lot of info...
Step-by-step explanation:
Mrs. Jasmine bought 6 kilograms of rice.After filling 10 containers with the same amount of rice in each, she had 860 grams remaining. How much rice, in grams, is in each of the 10 containers?
Answer:514 grams of rice is in each of the 10 containers
Step-by-step explanation:
Amount of rice bought =6 kilograms of rice.
6 kilograms =6000grams
Amount of rice reaming after filling 10 containers =860g
Amount used to fill up the containers ==6000grams-860grams =5140 grams
To get the amount filled inside the 10 containers since same amount is in each, we divide by 10
5140 grams/10=514 grams
A square wrestling mat has a perimeter of 12x + 32 feet. Write an expression that represents the side length of the mat in feet.
Answer: [tex]3x+8\ ft[/tex]
Step-by-step explanation:
Given
Square wrestling has a perimeter of 12x+32 feet
Suppose the side of the square mat is a
Perimeter is the sum of the side lengths of a polygon
for square, it is given by
[tex]\Rightarrow 4a=12x+32\\\\\Rightarrow a=\dfrac{12x+32}{4}\\\\\Rightarrow a=3x+8\ ft[/tex]
Therefore, the side length of the square mat is [tex]3x+8\ ft[/tex]
PLEASE HELP!!!!!!!!!!!!!!!!!!!!! THIS IS DUE !!!!!
Answer:
C
Step-by-step explanation:
In the heirarchy of Quadrilaterals, a square has to become either a rhombus or a square, and then a parallelogram in order to become a quadrilateral, and quadrilaterals are polygons.
a) -9f -f=
b) h³ + 8h³ =
c) -3ef² + 4ef² -ef²
d) -2xy + 5xy - 4xy
e) -2ab -7ab + 6ab
ayuda
Step-by-step explanation:
a) -9f -f= -10f
b) h³ + 8h³ = 9h³
c) -3ef² + 4ef² -ef²= 0
d) -2xy + 5xy - 4xy = -xy
e) -2ab -7ab + 6ab = -3ab
A square box is being cut apart and has the measurements shown below. What is the surface are each square is 3.5 inches and there 6 squares
Answer:
73.5 in^2
Step-by-step explanation:
Given data
Dimension of square= 3.5 inches
Area= 3.5^2
Area= 12.25 in^2
Number of square= 6
Hence the total area is
=12.25*6
=73.5 in^2
The mascot does 5 back flips and the cheerleaders set off 6 confetti cannons. How many backflips does the mascot if the cheerleaders set off 18 confetti cannons?
Answer:
15 backflips
Step-by-step explanation:
A school is building a rectangular stage for its chorus. The stage must have a width of 7 feet. The area of the stage must be at least 84 square feet. (The stage must hold all the singers.) Write an inequality that describes the possible lengths (in feet) of the stage.
Step-by-step explanation:
if L is for length, so
L ≥ 84/7
L ≥ 12 feet
A survey of patients at a hospital classified the patients by gender and blood type, as seen in the two-way table.
Gender
Blood Type Male Female TOTAL
A 105 93 198
B 99 84 183
O 160 140 300
AB 15 18 33
TOTAL 379 335 714
What percent of all patients are blood type AB? Round your answer to the nearest tenth of a percent. Type a numerical answer in the space provided. Do not include % or spaces in your answer.
%