Answer:
x = [-b +- sqrt(b^2-4ac)]/2a
Step-by-step explanation:
solve for x. help anyone ?
Step-by-step explanation:
[tex] \tan(60) = \frac{x}{4} \\ x = 4 \sqrt{3} [/tex]
Adam purchased some items at the school store. He bought 3 pencils for $0.15 each and 5 single-subject notebook
If these items cost a total of $6.45, what was the cost of each notebook?
O A. $1.20
B. $1.26
O c. $1.29
OD. $1.38
Answer:
The answer is A
Step-by-step explanation:
Fist multiply 3 and .15 to get .45 for 3 pencils. Then subtract .45 from 6.45 and get 6. Then divided 6 by 5 to get 1.2 for each book
i think the answer is a: $1.20
my work:
3 x 0.15 = 0.45.
6.45 - 0.45 = 6.00
6.00 / 5 = 1.20
and i checked my work by doing 1.20 x 5 + 0.40 = $6.45.
Point S is located at (-3,2) on the coordinate plane. Point S is reflected over the y-
axis to create point S'. What ordered pair describes the location of S'?
Answer:
(3,2)
Step-by-step explanation:
What’s the answer please tell me
Answer: 3
Step-by-step explanation:
The larger triangle is 5 times the size of the smaller triangle. Notice 6 increased to 30. How? 5x6 = 30, so it increased in size 5 times. The rise of the larger triangle is 15. If we know that 15 is 5 times as large as the smaller rise, then 15 divided by 5 = 3. So the smaller rise is 3
Answer:
Missing rise is 3
Step-by-step explanation:
[tex]\frac{30}{15} =\frac{6}{x}\\[/tex]
30x=90
x=3
Evaluate the expression for p = 5. Зр
Answer:
15
Step-by-step explanation:
Answer:
15
Explanation:
If p=5 then 3p=3(5)
3*5=15
Have a beautiful day!
Someone help me I will give brainliest!
Answer:
600.06
Step-by-step explanation:
Find the measure of the angle.
Answer:
37 degrees
Step-by-step explanation:
ASSIGNMENT: WS 4 - Factoring using DOTS and PST
What are the dimensions of a rectangle whose area is represented by the expression 4932 – 16?
49x - 16
LENGTH:?
WIDTH:?
What are the dimensions of a rectangle whose area is represented by the expression 4932 – 16?
49x² - 16
LENGTH: 3
WIDTH: 11
Hope this helps ~
Julie is doing some baking. Her recipe calls for 2 pints of one ingredient, 3 cups of another ingredient, 4 fluid ounces of another, and 1 1/2 cups of another ingredient. Once she combines all of these ingredients, will they fit in her 2-quart mixing bowl?
Answer:
no
Step-by-step explanation:
In ΔHIJ, the measure of ∠J=90°, HI = 8 feet, and JH = 1.9 feet. Find the measure of ∠H to the nearest tenth of a degree.
Answer:
21.9°
Step-by-step explanation:
In ΔHIJ, the measure of ∠J=90°, HI = 8 feet, and JH = 1.9 feet. Find the measure of ∠H to the nearest tenth of a degree.
We solve this above question using the Sine rule
a/sin A = b/sin B
In ΔHIJ, the measure of ∠J=90°, HI = 8 feet, and JH = 1.9 feet.
Hence:
HI/∠J = JH/∠H
= 8/sin 90° = 1.9/sin ∠H
Cross Multiply
∠H = arc sin(sin 1.9 × 90/8)
∠H = 21.9°
HELP PLZZZ THERE IS NO ANSWER CHOICES MARKING BRAINLIEST
Answer:
B = 10.5
Step-by-step explanation:
From the figures, it looks like triangle HER is similar to triangle KPS.
From that we get
[tex] \dfrac{HE}{KP} = \dfrac{ER}{SP} [/tex]
[tex] \dfrac{B}{7} = \dfrac{7.5}{5} [/tex]
Multiply both sides by 7.
B = 10.5
Answer:
B = 10.5
C = 10
Step-by-step explanation:
When one divides the corresponding sides of similar triangles, one will attain the ratio of similitude. If one multiplies one of the similar triangle's sides by the ratio of similitude, then one will attain the corresponding side of the similar triangle. In simple terms, the ratio of similitude is the scaling factor between two similar polygons.
As per the given information, the two triangles are similar, therefore one can set up a proportion with their corresponding sides;
[tex]\frac{ER}{PS} = \frac{HE}{KP} = \frac{HR}{KS}[/tex]
Substitute;
[tex]\frac{7.5}{5} = \frac{B}{7} = \frac{15}{C}[/tex]
Solve for B with cross products;
[tex](7.5)(7) = (5)(B)\\52.5 = 5B\\10.5=B[/tex]
Solve with cross products for C;
[tex](7.5)(C) = (15)(5)\\7.5C = 75\\C=10[/tex]
find AREA fast pls ASAP
What is the distance between the points (- 5, - 4) and (3, - 3) on a coordinate plane? Help asappp
Answer:
The distance between (-5, -4) and (3 , -3) is I think 9
Step-by-step explanation:
Hope this helps
Write an equation for the description.
Felix sold 35 fewer raffle tickets than Helene. How many tickets F did Felix sell if Helene sold H tickets?
Answer:
H = F + 35
Step-by-step explanation:
If Felix has 35 less than Helen, then adding 35 to Felix's amount should equal Helen's amount
Plz help me I do not get this
Answer:
Step-by-step explanation:
Let the cost of one t-shirt = t
And the cost of one sweatshirt = s
Since, Jayden sells 9 t-shirts and 3 sweatshirts for $420,
9t + 3s = 420
3t + s = 140 --------(1)
And Carson sells 1 t-shirt and 6 sweatshirts for $296,
t + 6s = 296 ----------(2)
Equation (1) multiplied by 6 then subtracted from equation (2)
(t + 6s) - 6(3t + s) = 296 - 6(140)
(t - 18t) + (6s - 6s) = 296 - 840
-17t = -544
t = $32
From equation (1),
3(32) + s = 140
s = 140 - 96
s = $44
This solution shows that cost one t-shirt is same for both sellers Carson and Jayden.
solve for x 11^(x-4)=121^(x)
Step-by-step explanation:
[tex]11 {}^{x - 4} = 121 {}^{x} \\ 11 {?}^{x - 4} = 11 {}^{11x} \\ x - 4 = 11x \\ x - 11x = 4 \\ \\ - 10x = 4 \\ x = - 0.4[/tex]
what are equations?
how do we solve equations?
Answer:
An equation is a mathematical statement that has an equal symbol between two algebraic expressions that have the same value
Step-by-step explanation:
We solve equations with math.
Sarah has a 22 ounce lemonade. She drinks 9 ounces. Enter the percentage of ounces Sarah has left of her lemonade. Round your answer to the nearest hundredth.
Answer:
40.91 percent
What number must be entered into the blank so that the equation has infinitely many
solutions?
10c + 15 = -- (2c + 5)
Answer:
0
Step-by-step explanation:
because 0 well do nothing to the numbers
Which situation describes a quantity that changes in an exponential manner relative to the other quantity? Select all that
apply.
A. The value of a printer that decreases in value by 15% each year.
B. The amount of money Lou earns on a sale that makes 5% commission.
C. The amount of money Trevor earns it he makes $12.50 per hour at his job.
D. The total value of Tiana's donations, if she gives $25 to a charity every month.
E. The amount of money in Devonte's savings account it he earns 3.5% interest each year.
Answer:
C and D
Step-by-step explanation:
Hope this Helped! Please tell me if I'm wrong!
The situations that describe a quantity that changes in an exponential manner relative to the other quantity are,
A. The value of a printer decreases in value by 15% each year.
E. The amount of money in Devonte's savings account in it he earns 3.5% interest each year.
What are some rules of exponents?Some common rules of exponents are
xᵃ×xᵇ = xᵃ⁺ᵇ.
xᵃ/xᵇ = xᵃ⁻ᵇ.
Addition and subtraction of exponents is only possible for the same base value and when the base is different and both have the same exponent we just multiply the bases and write the exponent.
The situations that describe a quantity that changes in an exponential manner relative to the other quantity are,
The value of a printer decreases in value by 15% each year,
It is an exponentially decaying function.
Suppose the first year it decayed to 85% of it's original value, next year it will decay 15% of 85% of its value.
The amount of money in Devonte's savings account it he earns 3.5% interest each year.
Suppose he earned 3.5% for $100, which is 103.5, next year he will earn
3.5% on $103.5, an exponentially growing function.
learn more about exponential functions here :
https://brainly.com/question/26977013
#SPJ2
Ok this is my last one
Answer:
A. 54 m^2
Step-by-step explanation:
You can do cross multiplication: [tex]\frac{4}{6}[/tex]×[tex]\frac{x}{9}[/tex]
4*9 = 6*x
36 = 6x
x = 6
That is the Width in m, so all you need to do is find the area!
Area = L * W
Area = 9 * 6
Area = 54
Please help: State if the three numbers can be the measures of the sides of a triangle.
Identify a common factor (other than 1) of the terms in the expression −7x+21
Answer:
Step-by-step explanation:
jjefhiuewubgiurbvrebf
Answer:
7(-x+3)
Step-by-step explanation:
21 is the multiple of 7
The vertices of a triangle are A(-1,4), B(4, 5),
and C(6, -2). After a dilation with center (0,0)
and a scale factor of 3, the vertices are translated
T(-2,5).
a. Is the image congruent to the original triangle?
Is the image similar to the original triangle?
b. What are the vertices of AA'B'C', the final
image?
Answer:
sim tem final sim amigo se eu erra mi disputa por favor
help pLs ;) tHxS
WEEEEEEEEEEEEEEEEEEEEEEEEE
Answer:
The term is unit fractions.
2x + 1 greater than 5
Answer:
X>2
Step-by-step explanation:
Subtract
1
1 from both sides. Simplify
5
−
1
5−1 to
4
4. Divide both sides by
2
2. Simplify
4
2
2
4
to
2
You can use cymath
Answer:
x > 2
Interval notation: [tex]\left(2,\:\infty \:\right)[/tex]
Step-by-step explanation:
Starting inequality: [tex]2x+1>5[/tex]
Subtract 1 from both sides: [tex]2x>4[/tex]
Divide by 2 on both sides: [tex]x>2[/tex]
Is this right. Please help me
Answer:
ye that is the correct answer
I need help with this!!
Answer:
Step-by-step explanation:
0ybv2 you know what to do me boiiiiii you got this your so cool your so cool your so cool
Which of the following are valid names for the triangle below? Check all that
apply.
Answer:
Triangle JKE and Triangle KEJ
Step-by-step explanation:
You have to look at each answer choice for this. For example, for A, it starts at K and then goes to E then to j. That forms a triangle. Whatever answer choice makes a complete triangle is your answer.
Inscribed angles
Will mark branliest
Answer:
srry it will not let me download the pdf
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