HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
Answer:
x = 5.
y = -2
Step-by-step explanation:
y = x - 7
2x + y = 8
substitute the first equation into the second
2x + (x -7) = 8
2x + x - 7 = 8
3x - 7 = 8
3x = 8 + 7
3x/3 = 15/3
x = 5.
substitute 5 in the second equation
y = 5 - 7
y = -2
14. A system of equations is shown below. For what value of a will this system have no solutions? Justify your answer.
y = 4x-9
y = ax+6
Answer:
a = 4
Step-by-step explanation:
a = 4
If a = 4, then both lines have the same slope and different y-intercepts. That makes both lines parallel. Since the lines never intersect, there is no solution.
Answer:
x can not equal zero, as it would cause division by zero.
Step-by-step explanation:
First, let's make one equation out of them and see what we get. Because both of them have y on the left, we can say that the two right sides are equal, giving us:
4x - 9 = ax + 6
If we solve for a, we get:
ax + 6 = 4x - 9
ax = 4x - 15
a = 4 - 15 / x
With that arrangement we can see clearly that x can not be equal to zero, as it would give us division by zero.
The value of 3° is
its from the chapter exponenets
Answer:
1
Step-by-step explanation:
=>. the value of 3° = 1
=> it is known to us that any number to the
power zero is equals to 1
hope it helps
5. Solve the triangle. A = 54°, b = 11, c = 8
O a = 11.5, C = 45.8°, B = 80.2°
O a = 9.0, C = 40.6°, B = 86.4°
O No triangles possible
O a = 9.0, C = 45.8°, B = 80.2°
Answer:
no triangles possible
Step-by-step explanation:
I hope this helps
Find the area of the shaded region. Round to the nearest hundredth when necessary.
Calculate the geometric mean of 12 and 20
Answer:
The Geometric mean of two numbers is the square root of their product.
Given numbers are 12,20.
Geometric mean = √(12*20)
= √240.
= 15.49.
= 15.5.
The geometric mean of 12 and 20 is 4√15.
What is an expression?An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.
Example: 3 + 3x + 4y = 7 is an expression.
We have,
The geometric mean of a and b is √(ab).
Now,
a = 12 and b = 20
so,
The geometric mean of 12 and 20.
= √(12 x 20)
= √240
= 4√15
Thus,
The geometric mean of 12 and 20 is 4√15.
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Which of the following angle measurements would you find in an equilateral triangle?
A. 45°, 45°, 45°
B. 45°, 45°, 90°
C. 50°, 50°, 50°
D. 60°, 60°, 60°
Answer:
D. 60, 60, 60
Step-by-step explanation:
In an equilateral triangle, all sides are equal and equal to 180 when added together. because 60×3 is equal to 180, D is the right answer. I hope this helps you!
The angle measurements found in an equilateral triangle are 60°, 60°, 60°
What is an Equilateral Triangle?An equilateral triangle is an angle that has equal angles and equal sides. It implies that all the sides of the angle contain the same length.
We can also say that an equilateral triangle is also equiangular since it has equal angles. If we recall, we know that the sum of angles in a triangle is 180°.
For a triangle with equal sides, it implies that each length will possess;
= 180°/3
= 60° each.
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a trapezoid is a parallelogram always sometimes never
Answer:
never
Step-by-step explanation:
trapezoids only have one set of parallel lines. a parallelogram has to have two or more
Hermes earns $6 an hour for babysitting. He wants to earn at least $168 for a new video game system. Determine the number of hours he must babysit to earn enough money for the video game system. Then interpret the solution.
Answer:
28 hours
Step-by-step explanation:
6x28=168
To earn atleast $168, Hermes should do babysit for atleast 28 hours.
What is inequality?Inequality is just like an equation showing relationship between two or more variables but this is expressed in greater than ,less than form.
It defines a range of value of the relationship.
How to form inequality?We have been given that Hermes earns $6 per hour for babysitting and he wants to earn atleast $168 for a new video game. We have to calculate the minimum number of hours that he should do babysit in order to earn $168.
We know that total revenue will be number of hours* payment of 1 hour.
let the number of hours that he does babysit is x.
The inequality will be :
6x>168
x>168/6
x>28
Hence to earn atleast $168 he should work for atleast 28 hours.
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Solve the inequality and write the solution in set-builder notation.
t-3>-8
I have no idea what set builder is, so I'll just solve it if that's okay.
t-3>-8
First, to cancel out -3, you need to add it to both sides.
t-3>-8
+3 +3
t>-5
---
hope it helps
please help it’s due in an hour!! giving brainlest if explained thank you!!
Answer:
86%
Step-by-step explanation:
28 were placed on suspension
200 are total (including that 28)
not placed on suspension are the rest, so 200-28=172
172 out of 200 = 86% not placed on suspension
Answer:
86% Pls consider marking brainliest if correct.
Step-by-step explanation:
Okie lets see
In all : 200
Removed : 28
To find percentage : 200-28/200
200 - 28 = 172
172/200 = (172/2)/(200/2)
I did this because 200 is 100x2, and because percentage is over 100
172/2 = 86
200/2 = 100
86/100 = 0.86 = 86%
Can someone help me pls
Answer:
Yes it is tangent because it is touching a certain point
Step-by-step explanation:
Heres a pic i found of an example and it looks exactly like that one
9514 1404 393
Answer:
yes
Step-by-step explanation:
The side lengths of the triangle are 5, 12, and 5+8 = 13. We can check to see if they satisfy the Pythagorean theorem, which would indicate a right triangle.
5² + 12² = 25 +144 = 169 = 13²
These sides do satisfy the relationship between sides for a right triangle, so angle A is a right angle. That is the case when segment AB is a tangent to the circle.
Yes, AB is a tangent.
Find x using the secant-tangent theorem.
Answer:
Step-by-step explanation:
what's the value of given expression
[tex] \sqrt{21 + 79} [/tex]
Answer:
√ 21 + 79
= 10
can someone help me how to do this problem >_<
SOEINE HELP ME ASAPPP PLZ
Answer:
i attatched a picture of how it should look
Step-by-step explanation:
The value of Kensington's car decreases in value according to the exponential decay
function V
Pe-0.12t , where Vis the current value of the vehicle, t is the
number of years Kensington has owned the car and P is the purchase price of the car,
$20,000. To the nearest dollar, what will be the value of Kensington's car in 8 years?
How many solutions does the following equation have?
13(y + 3) = 13y +39
Choose 1 answer:
No solutions
Exactly one solution
Infinitely many solutions
Answer:
Infinitely many solutions
Step-by-step explanation:
This equation has an infinite number of solutions, so it will be categorized as an identity.
Convert 1/2 radians to degrees
Answer:
28.65°
Step-by-step explanation:
.5(180/π)= 28.65
Use the distributive property to remove the parentheses.
4(x+8)
Answer: 18+6w
Step-by-step explanation:
Answer:
4(x+8)
4x+32
4 x X = 4x 4 x 8 = 32
Step-by-step explanation:
Anyone help me on this plzzzz :((
Answer:
Answer should be 47
Step-by-step explanation:
Answer:
47
Step-by-step explanation:
180-133(because of straight angle )
An item is regularly priced at $ 70. It is on sale for 40% off the regular price. How much in dollars) is discounted from the
regular price?
Answer:
42
Step-by-step explanation:
70 minus 40 percent equals 42
sos please help how to do this
Answer:
±√7
Step-by-step explanation:
[tex]3 {x}^{2} + 7 = 28 \\ 3 {x}^{2} = 21 \\ {x}^{2} = 7 \\ x = \sqrt{7} [/tex]
Help please its geometry
Answer:
b
Step-by-step explanation:
Opposite angles are equal in a parallelogram. Therefore 2 angles are 112°. Angles in a parallelogram or any quadrilateral are equal to 360°. To find the remaining sides: 360-(112×2) and divide your answer by 2.
Jazmine's bakery shop Sells doughnut boxes for $10, In addition $5 for the toppings
Answer:
y=10+5x
Step-by-step explanation:
Have a great day
solve the inequality -d ≥ 0.5
Answer:
d ≤ -0.5
Step-by-step explanation:
Multiply each term by -1
Number 13 and 14 don’t matter but help ‼️
In an isosceles triangle, one of the equal interior angles is equal to the adjacent exterior
angle divided by 5. What are the values of the 3 interior angles in the triangle? Make sure
to draw and label a sketch of the triangle.
Answer:
Step-by-step explanation:
can you show a picture?
Construct a circle through points
X, Y, and Z
Answer:
Step-by-step explanation:
1st draw 3 circles where each center is on one of the points, and the other side , the drawing side of the compass is on another point.. the draw the circle ... do that for each point... there will be one point.. where all three cross some where in the middle.. put the point of your compass on that point.. and then put the drawing side on any one of the points... all 3 will now be on the circle.. draw it.. :)
The circle can be constructed through points X, Y, and Z by drawing a side on any one of the points.
What is a circle?It is described as a set of points, where each point is at the same distance from a fixed point (called the center of a circle)
As we can see in the picture.
The construction of a circle through three points can be done:
First, draw three circles with each center on one of the points and the drawing side of the compass on another point.
There will be one place where all three intersect somewhere in the middle, but the point of your compass should be on that point, and then put the drawing side on any one of the points.
Thus, the circle can be constructed through points X, Y, and Z by drawing a side on any one of the points.
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What is the value of the expression you wrote in problem 3?
Answer:
??????????????????????????
Step-by-step explanation: