Answer:
[tex]x = 3, -2[/tex]
Step-by-step explanation:
1: factor
[tex](x-3)(x+2)[/tex]
2: check
[tex]x^2 + 2x -3x -6[/tex]
3: solve for x
[tex]x = 3, -2[/tex]
Answer:
correct thank you
Step-by-step explanation:
PLEASE HELP ME WITH THISSSSS
Answer:
17/3
Step-by-step explanation:
all you have to do is add 5 and 2 and you get 17 / 3 also divide by 2
please answer quick
In this polygon, all angles are right angles.
What is the area of this polygon?
Enter your answer in the box.
=========================================================
Explanation:
Draw a vertical line through the middle to split the figure into two rectangles.
The rectangle on the left is 21 ft by 7 ft. Its area is 21*7 = 147 sq ft.
The rectangle on the right is 24-7 = 17 ft by 21-10 = 11 ft. The area is 17*11 = 187 sq ft.
The combined area is therefore: 147+187 = 334 square feet
-------------
A different approach:
Draw a horizontal line through the middle to form two rectangles.
The rectangle on top is 10 ft by 7 ft with area of 10*7 = 70 sq ft.
The rectangle on the bottom is 24 ft by 12-10 = 11 ft, so its area is 24*11 = 264 sq ft.
Total area = 70+264 = 334 square feet
--------------
Yet another method:
Draw a horizontal line through the top most edge of the figure. Do the same for the right-most side of the figure. The two lines meet in the top right corner. This will form a rectangle that is 21 ft tall and 24 ft wide.
The area of this big new rectangle is 21*24 = 504 sq ft.
However, we don't want all of this area. We'll kick out the rectangular piece that is 10 ft tall by 24-7 = 17 ft across (in the upper right corner). The area we want to kick out is 10*17 = 170 sq ft.
The actual area we want is 504 - 170 = 334 square feet
There are probably other methods you could use to find the area of this figure.
There are 4 red cars and 15 black cars in a parking lot what is the ratio of black cars
Answer:
4/15
Step-by-step explanation:
Because there are 4 black and 15 red so your saying there are 4 out of 15 are black
Giuseppe’s had orders for $798.00 of pizzas. The prices were $16 for a large pizza, $15 for a medium pizza, and $11 for a small pizza. The number of large pizzas was two less than four times the number of medium pizzas. The number of small pizzas was two more than twice the number of medium pizzas. How many of each size of pizza were ordered
Answer:
Its 840$
Step-by-step explanation:
Because keep adding by the numbers to get the answer keep adding
Suppose the temperature increases 8º to -7ºF. What was the starting temperature?
a.
15º
c.
-13º
b.
-20º
d.
-15º
Answer:
the original temp was -15 hope this helped;-)
Step-by-step explanation:
2. What is the solution for the system graphed here?
Answer:
no solution
Step-by-step explanation:
The solution to a system of equations is where the two graphs intersect. The two lines do not intersect since the lines are parallel, so there is no solution.
For this exponential function,
what is the output value (y),
when the input value (x) is 3?
y = 10.5%
=
(3, [?])
Output value (y) of the y = 1.157.exponetial functio9n when x = 3 is: (3, 1,250).
What is an Exponential Function?An exponential function is a type of function that has a constant that is raised to a given power. It is expressed as [tex]y = a^x[/tex].
Given the exponential function, [tex]y = 10 \times 5^x[/tex]
When x = 3, thus:
[tex]y = 10 \times 5^3\\\\y = 1,250[/tex]
Therefore, output value (y) of the y = 1.157.exponetial function when x = 3 is: (3, 1,250).
Learn more about exponential function on:
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so If you have Dante bought 32 ounces of nuts at the store. How much is this in pounds so want do you get and I am lost.
Answer:
32 oz = 2 lbs
Step-by-step explanation:
A light bulb manufacturer claims that the mean life of a certain type of light bulb is 750 hours. If a random sample of 36 light bulbs has a mean life of 725 hours with a standard deviation of 60 hours. Use a=0.05
a. State the null and alternative hypotheses.
b. State the Type I and Type II errors.
c. Find the critical value. Do you have enough evidence to reject the manufacturer’s claim?
d. Find the p-value.
e. Construct a 95% confidence interval for the population mean.
Please show work if you can! Thank you!
An individual spins a wheel once that has 5 equal parts colored blue, green, red, yellow, and black. What is the probability that the spinner lands on red?
Answer:
1
Step-by-step explanation:
this is because it has 5 equal parts and only one red
My bag of Skittles had
80 candies inside.
Twenty-four of them
were green.
PLEASEPLEASEHELP!!!!
Answer:
MN and 170°
Step-by-step explanation:
to get around the red arc you would go alphabetically to the points M, N. since u already have 170° and a circles full rotation is 360° that means 360-170=190 and so the blue arc of the circle would either have to be 190° or 170°, and since the angle of the blue arc is farther than the red arc, that would mean the blue arc is 190°.
Travis spies an owl in a tall tree. He estimates the height of the tree to be 85 feet and the angle of elevation to the bird from where he stands to be 68°. The leaves on the tree make it difficult for Travis to watch the bird, so he takes several steps away from the tree to get a better view. He now estimates his angle of elevation to be 41°.
How many feet did Travis step back to gain a better view of the bird? Round your answer to the nearest hundredth of a foot.
Please help!!
Answer:
63.44 feet
Step-by-step explanation:
tan(68 degrees)= 85/y
y tan (68 degrees)=85
y=85/tan(68 degrees) ( cross multiply)
y = 34.34 feet
tan (41 degrees)=85/x+y
(x+y)tan(41 degrees)=85
x+y=85/tan 41 degrees
x=85/tan(41 degrees) - y
x= 85/tan (41 degrees)-(34.34) (cross multiply)
Therefore, Travis stepped back 63.44 feet to gain a better view!
The longer leg of a right triangle is 7m longer than the shorter leg. The hypotenuse is 9m longer than the shorter leg. Find the side lengths of the triangle.
Answer:
I dont really know to be honest
what is 52,437 rounded to the nearest hundred?
We buy these products for $50.00 and then sell them for $67.00
Answer:
$17.00
Step-by-step explanation:
The profit=67-50
=$17
Graph the parabola.
y=3x²-4
Plot five points on the parabola: the vertex, two points to the left of the vertex, and two points to the right of the vertex. Then click on the graph-a-function
button.
Answer:
A parabola is a curve with a focus and a directrix. The focus is any point is at an equal distance while the directrix is a fixed line. The vertex of the parabola is (2,1), the two points to the right are (3,4) & (4,13) while the two points to the left are (1,4) & (0,13).
Given that:
y = 3(x - 2)² +1
A parabola is represented as:
y = a (x − h)² + k
Where:
Vertex = (h, k)
So, by comparison; the vertex of the function is:
Vertex = (2, 1)
To plot two points to the right, we select x values greater than 2.
Let: x = 3
So, we have:
y = 3(x - 2)² + 1
y = 3(3 − 2)² + 1
y = 4
Let x = 4
y = 3(x - 2)² + 1
2:37
4G 15%
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Mathematics
5 points
Let x = 4
y = 3(x - 2)² +1
y = 3(4-2)² + 1
y = 13
To plot two points to the left, we select x values less than 2.
Let: x = 1
So, we have:
y = 3(x - 2)² +1
y = 3(1 − 2)² + 1
y = 4
Let x = 0
= 3(x - 2)² + 1 y =
y = 3(02)² +1
= 13
In conclusion:
• The vertex of the parabola is (2,1)
• The two points on the right are (3,4) and (4,13)
• The two points on the left are (1,4) and (0,13)
PLEASE HELP What is the volume of this rectangular prism?
14 ft
3 ft
6 1/4 ft
A 87 1/2 ft3
B 131 1/4 ft 3
C 252 ft3
D 262 1/2 ft
Step-by-step explanation:
25/4*14*3= 21*25/4= 262.5 ft^3
Find an equation of the circle whose diameter has endpoints (1,-5) and (-5,-3)
Answer:The solution is in the attached file below
Step-by-step explanation:
For what value of x is cos(x) = sin(14°), where 0° < x < 90°?
A.
76°
B.
28°
C.
31°
D.
14°
1. Observe Problem
Use crossout to determine the answer
As we approach immediately, we notice that A is the answer
For the equation cos(x) = sin(14°) where 0° < x < 90° the value of x is 76 degrees.
We have given,
For what value of x is,
cos(x) = sin(14°),
where 0° < x < 90°
1. Observe the problem
Use cross out to determine the answer.
[tex]cosx=sin(14^0)[/tex]
What is the value of the sin(14) degrees?The value of the sin(14) degree is 0.2491
[tex]cosx=sin(14^0)\\\\\\cosx=0.24192\\\\\\x=cos^{-1}(0.24192)[/tex]
[tex]x=76.05^0[/tex]
x=76.05 degrees.
As we approach immediately, we notice that A is the answer.
Therefore,For cos(x) = sin(14°) value of x is 76 degrees.
To learn more about the angles visit:
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If 15 apricots cost R5.60, how many apricots will R10.08 cost
Hey!
Answer:
R5.60=15 apricots
R10.08=15÷5.60×10.08
=27 apricots {ans}
please help me with my math work!!
Answer:
x = 6 and x = -6
Step-by-step explanation:
x² = 36
to solve for 'x' we need to take its square root but must do the same to the other side:
x = [tex]\sqrt{36}[/tex]
square roots have both positive and negative roots:
6 x 6 = 36
(-6) x (-6) = 36
x = ±6
What is the width and height of this triangle I’ll mark the brainiest
Answer:
The base is 6.69 and the height is 6.02 (these are rounded to nearest hundredth)
Step-by-step explanation:
soh-cah-toa
cos 42 = adjacent/9
adjacent = cos 42 x 9
adjacent = 6.69
sin 42 = opposite/9
opposite = sin 42 x 9
opposite = 6.02
Which is more, 3 fluid ounces or 1 pint?
Answer:
If I am correct 1 pint is greater
Step-by-step explanation:
it takes 16 fluid ounces to make a pint
Hope you understand :)
Answer:
1 pint
Step-by-step explanation:
1 pint because in 1 pint there are 16 fluid ounces
please mark brainliest
Compare the slope of the following equation and graph by determining which line is steeper.
A. The line represented by the equation has the same steepness as the line shown in the graph.
B. The line represented by the equation is steeper than the line shown in the graph.
C. The line shown in the graph is steeper than the line represented by the equation.
D. There is not enough information to determine the steepness of the lines.
Answer:
The equation is in the form y = mx, where m represents the slope.
So, the slope of the line represented by the equation is .
Use two points from the graph to determine the slope of the line shown on the graph.
The calculation shown below uses the points (0, 0) and (1, -2).
So, the slope of the graph is -2.
To determine which line is steeper, compare the absolute values of the slopes. The line whose absolute value of the slope is greater is the steeper line.
Therefore, the line shown in the graph is steeper than the line represented by the equation.
Answer:
C
Step-by-step explanation:
Dan made $208 for 13 hours of work.
At the same rate, how many hours would he have to work to make $112?
Answer:
7 hours
Step-by-step explanation:
Make proportion:
208/13 = 112/x
x = 112*13/208 = 7 hours
помогите пожалуйста!!
your suppose to do Base x height then you have to divide it by 2 so you'll have your answer
Find the value of x.
Answer:
x = 50°
Step-by-step explanation:
A triangle has total interior of 180 degree .
x + 84° + 46° = 180°
x = 180° -46° -84°
x = 50°
In the given triangle, the value of x is determined to be 50°. In other words, The value of x in the triangle is 50°.
To find the value of x in a triangle with angles measuring 84°, 46°, and x°, follow these steps:
Step 1: Recall that the sum of the angles in a triangle is always 180 degrees.
Therefore, the sum of the three angles in the given triangle is:
[tex]84 + 46 + x = 180[/tex]
Step 2: Combine like terms and isolate x.
Start by subtracting 84 and 46 from both sides of the equation:
[tex]84 + 46 + x - 84 - 46 = 180 - 84 - 46[/tex]
[tex]x = 50^{\circ}[/tex]
Step 3: The value of x is 50. This means that the third angle in the triangle measures 50°.
By applying the fact that the sum of angles in a triangle is 180°, set up an equation and solve for x.
The equation represents the sum of the given angles (84°, 46°, and x°) equating to the total sum of angles in a triangle (180°). By simplifying the equation, obtained x = 50, which indicates that the third angle in the triangle measures 50°.Learn more about triangles here:
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A medical researcher says that less than 25% of American adults are smokers. In a random sample of 200 adults, 28.5% say that they are smokers. At a=0.01, do you have enough evidence to reject the researcher’s claim?
a. State the null and alternative hypotheses.
b. State the Type I and Type II errors.
c. Find the critical value. Do you have enough evidence to reject the manufacturer’s claim?
d. Construct a 95% confidence interval for the difference of population means.
Write the following in terms of sine theta only.
cotangent