Answer:
Step-by-step explanation:
x² + 3x - 70 = 0
x² + 3x = 70
x² + 3x + (3/2)² = 70 + (3/2)²
(x + 3/2)² = 70 + 9/4 = 289/4 = (17/2)²
so
x + 3/2 = ±17/2
x = ±17/2 - 3/2
x₁ = 17/2 - 3/2 = 14/2 = 7
x₂ = -17/2 - 3/2 = -20/2 = -10
x² = -10x - 30
x² + 10x = -30
x² + 10x + (10/2)² = -30 + (10/2)²
x² + 10x + 25 = -30 + 25 = -5
(x + 5)² = -5
[tex]x+5 = \pm\sqrt{-5}\\x + 5 = \pm i \sqrt{5}\\x = -5\pm i \sqrt{5}\\\\x_1 = -5+ i \sqrt{5}\\\\x _2= -5- i \sqrt{5}\\[/tex]
Help help help math math
Answer:
x=5
Step-by-step explanation:
[tex] \frac{ - 8 - 2x}{3} = - 6[/tex]
[tex] - 8 - 2x = - 18[/tex]
[tex] - 2x = - 10[/tex]
[tex]x = 5[/tex]
A foot contains 12 inches 5 inches is what fraction of a foot
Answer:
5/12 inches
Step-by-step explanation:
also, stop deleting my answers whoever you are
Answer:
5/12
Step-by-step explanation:
5/12 it is very easy
An isosceles triangle has one angle with a measure of 30°. What could the measure of the other two angles be?
30° and 30°
30° and 120°
75° and 75°
30° and 100°
if 30% of a number is 150, what is 40% of that number?
Given the graphs of f(x) = 2x + 1 and g(x) = 5x – 2, what is the solution to the equation f(x) = g(x)?
A) 0
B) 1
C) 3
D) –2
Answer:
1 is answer
2x+1=5x-2
5x-2x=1+2
3x=3
x=3
Find angle C, can someone help me with this please?
Answer:
m∠C = 98°
Step 1: Derive an Equation
To solve this problem, we will use what is called the Exterior Angle Theorem. This states that in a triangle, the measure of an exterior angle is equal to the sum of the measures of its 2 corresponding remote interior angles.
Exterior angle - an angle formed by the extension of 1 side of the triangleRemote interior angles - the 2 angles that don't share a vertex with the exterior angleIn this case, the exterior angle is ∠T (the obtuse one) and the remote interior angles are ∠C and ∠Y. Therefore, m∠T = m∠C + m∠Y.
Substituting the given measures into the equation, we get:
[tex]3x+2+x=130[/tex]
Step 2: Solve the Equation
[tex]3x+2+x=130[/tex]
[tex]4x+2=130[/tex] (Combine like terms)
[tex]4x=128[/tex] (Subtract 2 from both sides to isolate [tex]x[/tex])
[tex]x=32[/tex] (Divide both sides by 4 to get rid of [tex]x[/tex]'s coefficient)
Step 3: Answer the Question
We now know what [tex]x[/tex] is. Therefore, m∠C = [tex]3*32+2=\bf 98 \textdegree[/tex].
To learn more about the Exterior Angle Theorem, check out the following questions:
https://brainly.com/question/17147409https://brainly.com/question/6330929Write 43/19 as a decimal rounded not the nearest 100th
Answer: So you're looking for 43/19 but not to the nearest hundredth, so maybe your teacher is looking for the decimal to be rounded to the nearest tenth or one thousandth... Here's how you would solve this...
Step-by-step explanation:
49/13 or 49 ÷ 13
49/13 = 3.76923076923
To the Nearest 10th: Answer ≈ 3.8
To the Nearest 1,000th: Answer ≈ 3.769
To the Nearest 100th: Answer ≈ 3.77
Note: I listed the nearest 100th in case you need it, I hope this helps you!
Original price of a shirt: $76.50
Discount: 55%
Tax: 6%
Please help dont just answer a wrong answer I give 80 points to who answers it
Answer:
I believe the answer is $36.50.
Step-by-step explanation:
First, I subtracted 55% of the original price of the t-shirt to the original price of the t-shirt. Then, I added 6% of the price to the discounted price of the t-shirt.
I believe this is right.
Find the length of TV.
Answer:
30units
Step-by-step explanation:
Hope this answers helps you
The Formula for the volume of a right square pyramid is given down below, where a is the side length of the base and h is the height.
V= 1/3a^2h
Rewrite the formula and solve for a
PLEASE ANSWER WILL GIVE BRAINLIEST IF CORRECT
Answer: Is it B? I hope it helps you :)
Step-by-step explanation:
22 ounces =
how many pounds
Answer:
1 3/8 lbs or pounds
Step-by-step explanation:
1 pound is 16 ounces
22 ÷ 16 = 22/16 = 11/8 = 1 3/8
Cole rides his bike to the ball field starting from home. This describes his trip:
A. Rides toward the field
B. Stops to wait for a friend
C. Continues to ride toward the field
Drag one segment to each box to show the shape of the graph of Cole's distance from home for each interval of time. PLS HELP I GIVE 25 points
Answer:
i think it is a because that the answer
How do I solve for X
Answer:
x=16
Step-by-step explanation:
so since a right angle is shown the it's telling that it's an isosceles triangle so you do 22-6=16
answer=16
The equation is written as x + 6 = 22. Then the value of the variable 'x' will be 16.
What is the triangle?The polygonal shape of a triangle has a number of sides and three independent variables. Angles in the triangle add up to 180°.
From the figure, line AB is divided into two equal parts. Then the triangles will be congruent with each other by SAS postulates.
Then the side length (x + 6) is equal to the side length (22). Then the equation is given as,
x + 6 = 22
Simplify the equation, then we have
x + 6 = 22
x = 22 - 6
x = 16
The equation is written as x + 6 = 22. Then the value of the variable 'x' will be 16.
More about the triangle link is given below.
https://brainly.com/question/25813512
#SPJ2
Homework Section 9.. On a photograph of a triangular piece of land, the lengths of the three sides are 6 cm, 8 cm, and 9 cm, respectively The shortest side of the actual piece of land is 180 m long Find the lengths of the other two sides
Answer:
Step-by-step explanation:
180m = 180 * 100 = 18000 cm
Scale factor = 6 : 18000
= 1 : 3000
Length of other two sides:
8*3000 = 24000 cm = 240 m
9 * 3000 = 27000 cm = 270 m
(GIVING BRAINLIST)
The tables in the pottery class sit 8 students each. If there are 35 students in the class, how many tables are needed?
Group of answer choices
5
4
280
4.375
Answer:
The answer for this oblique question is 4.375
Step-by-step explanation:
for 35 ÷ 8 = 4.375
Answer:
35/8=4.375
5 tables needed
Step-by-step explanation:
35/8=4.375
you have to round cuz there can't be 0.375% of a student
and there can't be 0.375 of a table...so it's 5 tables
PLEASE HELP WILL GIVE BRAINLIEST!
The graph of Y equals X as shown in the graph below which equation represents the transformed function?
Answer:
a
Step-by-step explanation:
g(×)=(3×+12)/4
Find g^-1(×)
g^-1(6)
Answer:
fog)(x)=f(g(x))=2(3x+2)−1=6x+4−1=6x+3=3(2x+1)
f
(
x
)
=
3
−
2
x
,
g
(
x
)
=
3
x
2
+
2
Set up the composite result function.
g
(
f
(
x
)
)
Evaluate
g
(
f
(
x
)
)
by substituting in the value of
f
into
g
.
g
(
3
−
2
x
)
=
3
(
3
−
2
x
)
2
+
2
write an equivalent expression for (x+y)(x-y)
Step-by-step explanation:
(x+y)(x-y)
=> [tex] {x}^{2} - {y}^{2} [/tex]
The box plot below represents some data set. What is the range of the data?
20
40
60
80
100
Answer:
Submit Answer
Answer:
either 40 or 20 I am thinking
Nelson paid $25.95 for each adult hat and $13.95 for each youth hat he bought. Nelson bought 3 adult hats and 4 youth hats. How much money did he spend on the hats all together?
Answer:
Step-by-step explanation:
25.95 x 3 = 77.85
13.95 x 4 = 55.8
77.85 + 55.8 = 133.65
If the answer is L * W * H then why do you have to divide once you get to H to get the correct answer?
Answer:
Hi! I'm not quite sure what you entirely mean by this but I'll try to help. LxWxH is a formula used to find the volume of a rectangular prism or a box. If this is what you are using it for then there shouldn't a reason to divide. Unless maybe you're trying to find half of a box or you are trying to find the value of one of these in an equation but that's the only thing I can think of. Do you think you might be able to post an example in the comments?
Step-by-step explanation:
What is the mean of this data set? {6, 11, 5, 2, 7} Enter your answer as a decimal in the box.
Answer:
The mean is 6.2.
Step-by-step explanation:
The "mean" is the same thing as the "average". Essentially, the question is asking for the average of the numbers.
So:
Add up all of the terms. [6 + 11 + 5 + 2 + 7] = 31
You find the average by dividing the sum of the terms (31) by the number of terms (5).
31/5 = 6.2
The mean is 6.2.
I hope this helped! :)
What is the are of this figure???
Answer:
44 sq. cm
Step-by-step explanation:
I promise it's right, I did the math.
Please help me thank you!!
Answer:
[tex]F(t)=6000(0.343)^{t}[/tex]
Step-by-step explanation:
a = 6000, b = 0.7³ = 0.343
so
[tex]F(t)=6000(0.343)^{t}[/tex]
0.05194 rounded to the nearest tenth
Answer:
0.1
0.05194 rounds to 0.1, as it is shifted more towards 0.1 than 0.0 on a number line
Consider △DEF with vertices D(−5,−3),E(−1,1), and F(3,−7). Find the coordinates of the vertices of the final image of △DEF after the similarity transformation.
Is this correct?
Or the remainder must be 17.
Answer:
no, it isn't correct
Step-by-step explanation:
the answer is 13.4705 I'm pretty sure
Answer:
Both
Step-by-step explanation:
Your calculations are correct actually 100% correct but may I ask where do you get a remainder of 17.
Because do you see where you have 118 - 102 =16 that is your remainder so you are correct but what the question was wrong.
Your answer is 13 with a remainder of 16.
You did a great job and didn't need my help but I do hope this helps have a great day:)
What is the distance between the points (–4, –8) and (10, –8)?
Answer:
14 units
Step-by-step explanation:
The two given points have the same y-coordinate, so lie on the horizontal line y = -8. The distance between the points will be the difference of their x-coordinates.
distance = 10 -(-4) = 10 +4 = 14
The distance between the points is 14 units.
Answer:
14 units
The two given points have the same y-coordinate, so lie on the horizontal line y = -8. The distance between the points will be the difference of their x-coordinates.
Step-by-step explanation:
The two given points have the same y-coordinate, so lie on the horizontal line y = -8. The distance between the points will be the difference of their x-coordinates.
distance = 10 -(-4) = 10 +4 = 14
The distance between the points is 14 units.
Bobby's cat runs x mph. Bobby's dog runs twice as fast as his cat. suppose Bobbys cat and dog were 6 miles apart after 30 min. Write an equation to describe this situation
The equation to describe this situation is that Bobby's cat and dog were 6 miles apart after 30 minutes is 0.5x = 6
Bobby's cat's speedSince Bobby's cat runs at x mph, its speed is x mph.
Bobby's dog's speedAlso, Bobby's dog runs twice as fast as his cat. So, his dog's speed is v = 2x.
TimeSince they both move a distance in t = 30 min = 30 min × 1 h/60 min = 0.5 h.
Bobby's cat's distanceBobby' cat's distance in 30 mins is d = x × 0.5 h
= 0.5x miles
Bobby's dog's distanceAlso, Bobby's dog covers a distance in 30 min, D = v × 0.5 h
= 2x × 0.5 h
= x miles
The required equationSince Bobbys cat and dog were 6 miles apart after 30 min, we have that
D - d = 6
x - 0.5x = 6
0.5x = 6
So, the equation to describe this situation that Bobby's cat and dog were 6 miles apart after 30 minutes is 0.5x = 6
Learn more about linear equations here:
https://brainly.com/question/15602982
Answer:
1.5x=6
Step-by-step explanation:
after 30 min they will be 1.5x miles apart from each other, so you know that they traveled 6 miles, 1.5x=6 :)
Rsm sucks :(
remove the parentheses
8(8+v)
HELPP PLSS
Answer:
64+8v
Step-by-step explanation:
8(8+v)
distribute
64+8v