Solve: 0=-x2+2x+8
[tex]0=-x2+2x+8[/tex]
Answer:
x = 4
x = -2
Step-by-step explanation:
What is the explicit rule for the arithmetic sequence? 20.5, 16, 11.5, 7, 2.5, ...
Answer:
To determine the explicit rule for the arithmetic sequence of 20.5, 16, 11.5, 7, 2.5, ..., the following logical reasoning must be performed:
20.5 - 16 = 4.5
16 - 11.5 = 4.5
11.5 - 7 = 4.5
7 - 2.5 = 4.5
Thus, the explicit rule of the arithmetic sequence is that the numbers are gradually subtracted by 4.5, with which the next number of said sequence would be -2.
Plz help with this one I have ten minutes to turn it in! Will give u points! And mark u BRAINLY
Step-by-step explanation:
[tex]f(\pi) = - 3 \\ f( \frac{\pi}{2} ) = 0 \\ f( - \frac{3\pi}{2} ) = 0[/tex]
Find the value that makes the proportion true.
Answer:
can not see page
Step-by-step explanation:
Please I need help it’s an emergency
Answer:
A. [tex] 4\sqrt{6} [/tex]
Step-by-step explanation:
Applying the leg rule which is:
[tex] \frac{Hypotenuse}{leg} = \frac{leg}{part} [/tex]
Hypotenuse = 4 + 8 = 12
Leg = x
Part = 8
Plug in the values
[tex] \frac{12}{x} = \frac{x}{8} [/tex]
Cross multiply
[tex] x*x = 8*12 [/tex]
[tex] x^2 = 96 [/tex]
[tex] \sqrt{x^2} = \sqrt{96} [/tex]
[tex] x = \sqrt{16 * 6} [/tex]
[tex] x = 4\sqrt{6} [/tex]
PLEASE HELP!!!!!! ILL GIVE BRAINLIEST *EXTRA 40 POINTS** !! DONT SKIP :((
I'm only sure about the second one
Answer:
Yes
Step-by-step explanation:
(2, 1) is a solution to the given system of linear equations.
x + 16y = 2 + 16*1 = 2 + 16 = 18
2x + 11y = 2*2 + 11*1 = 4 + 11 = 15
There are 680 students in a school. Of the students, 55% are girls and the rest are boys. How many more girls than boys are there in the school?
PLEASE HELP !! ILL GIVE BRAINLIEST *EXTRA 40 POINTS* DONT SKIP :(( .!
Answer:
One solution
Step-by-step explanation:
Basicly its just seeing if x can be anything, nothing or one thing so x · 0 = 0 has infinite answers, 4x + 6 = 11 has one solution, and 0x = 5 has no solution
Paul has some money in his wallet, all in $1 bills. He buys a hat and has $6 left, as shown in
the model below.
How much did Paul pay for the hat?
Enter your answer in the box.
Answer:
we need to see the model
Step-by-step explanation:
model please
Simplify the expression:
2n + 10(9 + 4n)
Answer:
42n+90
Step-by-step explanation:
help 10 points to solve please
Answer:
A, B, & C are true.
Hope this helps & have a great rest of your day!
Answer:I believe the answer is A,B,C
Step-by-step explanation:
Pls help me plssss plsssss
Answer:
B
Step-by-step explanation:
how many 1/2's in 4? thats how many bows so 4 ÷ 1/2
Answer:
it's b.
debbie can make 8 bowls
FIRST TWO PLEASE, HELP ASAP! THANK YOU SO MUCH I WILL MARK AS BRAINLIEST!!!
Answer:
Th answer to the first question is 18+6=24 the answer to the second question is 9 weeks
Please mark me brainliest!
The table below shows the prices for different items at a bakery. Bakery Prices Dessert Price (in dollars) Cookie 0.33 Pretzel 0.97 Cupcake 1.06 Cami buys 1 cupcake, 2 cookies, and 3 pretzels at the bakery. What is the total price for the items Cami buys? A.$2.36 B $2.69 C.$4.63
Answer:
C $4.63
Step-by-step explanation:
1.06 cup cake + 66 2 cookies + 2.91 3 pretzels
1.06+.66+2.91 = $4.63
work out the value of angle x 24 degrees
Answer:
180=2x+ 24( angles opposite to equal sides)
156/2=x
x=78
Step-by-step explanation:
The value of x from the triangle is given by the equation x = 78°
What Is an Isosceles Triangle?A triangle with two sides of equal length is an isosceles triangle. The isosceles triangle has three acute angles, meaning that the angles are less than 90°. The sum of three angles of an isosceles triangle is always 180°.
In an isosceles triangle, the two equal sides are called legs, and the remaining side is called the base. The angle opposite the base is called the vertex angle
The three types of Isosceles Triangles are :
Isosceles acute triangle
Isosceles right triangle
Isosceles obtuse triangle
Given data ,
Let the triangle be represented as ABC
Now , the measure of angle ∠A = 24°
It is an isosceles triangle with ∠B = ∠C
So , the measures of the two angles are the same
Let the Triangle be ΔABC , such that
∠A + ∠B + ∠C = 180°
Substituting the values in the equation , we get
x + x + 24° = 180°
On simplifying the equation , we get
2x = 156°
Divide by 2 on both sides of the equation , we get
x = 78°
Hence , the measure of x = 78°
To learn more about isosceles triangle click :
https://brainly.com/question/1900674
#SPJ2
f(x)=3x(x^2+4x-5) evaluate f(-2)
Answer:
f(-2) = 54
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra I
Terms/CoefficientsStep-by-step explanation:
Step 1: Define
f(x) = 3x(x² + 4x - 5)
f(-2) is x = -2
Step 2: Evaluate
Substitute in x [Function]: f(-2) = 3(-2)[(-2)² + 4(-2) - 5][Brackets] Evaluate exponents: f(-2) = 3(-2)[4 + 4(-2) - 5][Brackets] Multiply: f(-2) = 3(-2)[4 - 8 - 5][Brackets] Subtract: f(-2) = 3(-2)[-4 - 5][Brackets] Subtract: f(-2) = 3(-2)(-9)Multiply: f(-2) = -6(-9)Multiply: f(-2) = 54Solve the problem 8 - 2 9/14=
ANSWER ASAP FOR BRANLIEST
Sonia is making a recipe that requires 2 cup of water and 5 cups of flour. Which of the following combinations shows the same ratio of water to flour?
Answer:
Well, I can't say which of the following combinations, because I can't see what you see. But I will list some equivalent ratios & hope one fits. If it doesn't, maybe type in the comments what the choices are & I can help more.
Step-by-step explanation:
2:5
4:10
6:15
8:20
10:25
12:30
14:35
blank divided 2/3 = 9/10
Answer:3/5
Hope this help :)
What is the value of cos ø in the diagram below?
A. 3/5
B. 3/4
C. 4/5
D. 4/3
Answer: The answer is A. 3/5
Step-by-step explanation:
Cos is the X coordinate given in parenthesis.
The X coordinate is 0.6, so find the fraction which equals 0.6.
3/5 = 0.6
Suppose that F(x) = x2 and G(X) = 3x2 + 8. Which statement best compares
the graph of G(x) with the graph of Fx)?
Answer:
the answer is B
Step-by-step explanation:
see the image!
Give Brillianst please!!!!!
Answer:
It’s actually d
Step-by-step explanation:
When a certain kind of bacterium takes a step, it moves 3 x 10^-7 meters. When
Joe takes a step, he moves 0.75 meters. How many times larger is Joe's step
than the bacterium's step?
Joe's step is[ ] x 10^[ ]
times larger than the bacterium's step
Answer:
Step-by-step explanation:
0.75/(3*10^(-7)) = 0.25*10^7 = 2.5*10^6
Need help with this bc I suck at math:(
Answer:
-45c
Step-by-step explanation:
Answer:
4c
Step-by-step explanation:
[tex]\frac{-60*c^{7} }{-15*c^{4}}[/tex]
Let's reduce the numbers and then we'll reduce exponents of c.
[tex]\frac{-60}{-15}=4[/tex]
Using exponent rules, we simply subtract the exponent from the top and the exponent from the bottom.
7 - 6 = 1
The exponent of c is 1, which is just c
Combining this, we get 4c
John multiplies 85 by 1.35. Which number might John be trying to find?
A. 135% of 85
B. 35% of 85
C. 13.5% of 85
D. 1.35% of 85
Answer:
A. 135% of 85
Step-by-step explanation:
When you find the percent of something, you multiply it by 100, so 1.35 ÷ 100 is 135
HELP! WILL GIVE BRANLIEST! + EXTRA POINTS!
Answer:
707 bags of sand
Step-by-step explanation:
To find the area all you have to do is add 40+5+5=50 then you split that in half to get the radius. The you use the area formula to get the entire shape and the get the radius of the smaller circle. Then, you subtract the small circle from the big circle to get the amount of sand needed. When you do that you should get 706.86 but since you need a whole number you would round up to 707
Olivia has 1/2 pound of raisins. She plans to eat them for snacks over the next 6 days. If she eats the same amount each day, What fraction of a pound of raisins will she eat each day
Answer :
1/12
Step by step :
Pounds of raisins : 1/2 = 0.5
Number of days : 6
Pounds of raisins she will eat every day :
0.5 ÷ 6 = 0.83333... = 1/12
WILL MARK BRAINLELIST HELPPPP ME
Answer:
17
Step-by-step explanation:
180 - 5 - 5 = 170 : 2 = 85 : 5 = 17
Factorise
1) 9a^2 - 6a
Answer:
9a^2 - 6a
taking common
3a(3a-2)
i need help with this pls.
Answer:
The answer is D
Step-by-step explanation:
Plug all of the numbers in and they all work with the problem.
HELP PLEASE PLEASE I WILL GIVE BRAINLIEST
In the top the "f(x)" equals 9, now they are asking you to add onto the 9 by 1 causing it to be 10. If you did the first few you would have noticed that it takes 9 in order to get to 5 from -4.
here are the answers btw: