Answer:
f(-2)=7
Step-by-step explanation:
substitute -2 in for x
[tex]f( - 2) = { - 2}^{2} + 3[/tex]
-2×-2=4
4+3=7
Answer:
f(-2)=7Step-by-step explanation:
[tex]f(x)=x^2+3\\\\f(-2)=?[/tex]
Substitute ; -2 for x in the given function
[tex]f(-2)= (-2)^2+3\\\\\mathrm{Calculate\:exponents}\:\left(-2\right)^2\::\quad 4\\\\f(-2)=4+3\\\\f(-2)=7[/tex]
-3/2(x - 5) = -12.
Answer:
x=13
Step-by-step explanation:
Help me brush pls I am totally dunk at mat
Answer:
Proportional
Step-by-step explanation:
A proportional graph is a straight line that passes through the origin.
A non-proportional graph can be a straight line, but it does NOT pass through the origin.
Therefore, this is a proportional graph.
Hope this helps :)
Which fraction is equivalent to this decimal?
0.16 repeating
A. 1/16
B. 16/100
C. 1/6
D. 1/3
Answer: B
16/100 = 0.16
0.16 is 16/100 exactly.
1/16 = 0.000625
1/6 = 16.666...
1/3 = 33.33...
So, the answer is 16/100.
Hope this helps!
The fraction is equivalent to the decimal number 0.16 will be 16/100. Then the correct option is B.
What is an equivalent expression?The equivalent is the expression that is in different forms but is equal to the same value.
The decimal number is the sum of a whole number and part of the fraction number. The fraction number is greater than zero but less than one.
The decimal number is given below.
⇒ 0.16
The fraction is equivalent to the decimal number 0.16 will be
Multiply and divide the number by 100. Then the fraction number will be
⇒ 0.16 x 100 / 100
⇒ 16 / 100
The fraction is equivalent to the decimal number 0.16 will be 16/100. Then the correct option is B.
More about the equivalent link is given below.
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rounded to the nearest tenths place : 2.03
Answer:
2....................
Answer:
rounded to the nearest tenths place : 2.03 is 2.0
Step-by-step explanation:
it is because 3 is lower than 5 so the number would decrease and it will be 2.0
Suppose v varies directly as g, and v = 36 when g = 4. Find v when g = 11
Step-by-step explanation:
v=kg
36=k×4
k=36/4
k=9
v=9×11
v=99
The ratio of trucks to cars in an auto show is 7 to 8. If there are a total of 21 trucks, how many cars are there?
Answer:
The answer is 24.
Explain:
7 times 3 is 21. So 8 times 3 is 24.
convert 171 lbs into kg
Write a linear function f with the values f(-6) = 10 and f(2) = 10
Find the area of the shape.
a+2xy=14 solve for y
Answer:
y= (14-Ax)/(2x)
Step-by-step explanation:
it is 14 I got u don't worry
what is 3x-2-7x = 10x + 4?
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
3x−2−7x=10x+4
3x+−2+−7x=10x+4
(3x+−7x)+(−2)=10x+4(Combine Like Terms)
−4x+−2=10x+4
−4x−2=10x+4
Step 2: Subtract 10x from both sides.
−4x−2−10x=10x+4−10x
−14x−2=4
Step 3: Add 2 to both sides.
−14x−2+2=4+2
−14x=6
Step 4: Divide both sides by -14.
−14x−14=6−14
x=−3/7
Answer:
x=−3/7
The value of x is -3/7.
What is Equation?Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides. LHS = RHS is a common mathematical formula.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given:
3x-2-7x = 10x + 4
Now, solving for x
3x-2-7x = 10x + 4
-4x - 2= 10x + 4
-4x - 10x = 4 + 2
-14x = 6
x= -6/14
c= -3/7
Hence, the value of x is -3/7.
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-8x - 5= -1 when x =2
Answer:
= -21
Step-by-step explanation:
i did it on a calculator
Can someone tell me if idid this right i’m confused.
Estimate 5/7 x 1/9 who can be the first to answer
It is 0.07936 b the way you write it
Mrs. Coners grades 120 math tests in 3
hours. Mrs. Bing grades 100 math tests in
2 hours. Who grades math tests at a
quicker rate?
Answer: The answer is Mrs. Coners.
Explain: It is Mrs. Coners because she graded 60 math test pages 2 hours,
it would be 40 math test pages per 1 hour each. <-- (3 hours)
Mrs. Bing graded 50 math test pages 1 hour each. 50 times 2 = 100.
Therefore, your answer is Mrs. Coners.
#LearnWithBrainly!
Solve the equation for the given variable.
-2 (x + 6) = 8
Answer:
x = -10
Step-by-step explanation:
-2 (x + 6) = 8
-2x + -12 = 8
+12 +12
-2x = 20
÷ -2 ÷ -2
x = -10
The endpoints of segment MP areM(-2,-4) and P(8,11) . If K portions MP in a ratios of MK:KP= 1:4, what are the coordinates of K?
Answer:
The coordinates of k are (-2,-1)
Step-by-step explanation:
Here, we are interested in calculating the coordinates of point k.
Mathematically, we will use the internal division formula for this;
This would be;
(x,y) =( nx1 + mx2)/(m + n), (ny1 + my2)/(m + n)
where m = 1 , n = 4
x1 = -2 , x2 = 8
y1 = -4 , y2 = 11
we now make the substitutions into the formula;
(x,y) = 4(-2) + 1(-2)/(1+4) , 4(-4) + 1(11)/(4 + 1)
(x,y) = (-8-2)/5 , (-16 + 11)/5
(x,y) = -10/5 , -5/5
(x,y) = (-2, -1)
is the equation true or false
Substances sometimes shrink when they dry. A silicone sheet dried and over time shrank – 6 11 inch for every linear foot. Which repeating decimal is equivalent to – 6 11 ? Negative 0.ModifyingAbove54 with bar Negative 0.5ModifyingAbove4 with bar Negative 0.54 Negative 0.8ModifyingAbove3 with bar
Answer:
they were right the answer is A give them brainliest
Step-by-step explanation:
Answer:
please mark brainiest please I showed you they didn't
Step-by-step explanation:
You go shopping at a local department store with your friend and cousin. You buy one pair of jeans, four pairs of shorts, and two shirts for $84. Your friend buys two pairs of jeans, one pair of shorts and three shirts for $76. Your cousin buys one pair of jeans, two pairs of shorts and one shirt for $52. Find the cost of one pair of shorts.
Answer:
So, cost of 1 pair of shorts =$12
Step-by-step explanation:
Let cost of 1 pair of jeans =x
Cost 1pair of shorts =y
cost of 1 pair of shirts=z
We can set up equations as
x+4 y+2 z=84
2 x+1 y+3 z=76
x+2 y+z=52
Solve the equations for y.
Take first and second equations multiply first equation by -2 and add it with second equation.
-2 x-8 y-4 z=-168
2 x+1 y+3 z=76
Add them, it gives -7 y-z =-92
Now, take second and third equations, multiply the third equation by -2 then add them together.
2 x +1 y +3 z =76
-2 x-4 y-2 z=-104
Add them together,
-3 y +z =-28
Now, take the -7 y -z =-92 and -3 y +z =-28
Add the equations
-10 y = -120
Divide both sides by -10
y =12.
So, cost of 1 pair of shorts =$12
z=8
pleas e help me quickly !!
Answer:
100
Step-by-step explanation:
Just so you know, there is a thing called calculator
You should really get one if you are asking such questions
Or maybe, IDK maybe DON'T BE LAZY AND LEARN TO DO SIMPLE CALCULATIONS
what is the measure of the following angle?
AOD
Answer:
it's 80.
Step-by-step explanation:
120-40= 80
....
Answer: 80
Step-by-step explanation:
hope this helps
what is the value of x??
Answer:
[tex]\displaystyle 25 = x[/tex]
Step-by-step explanation:
You are given the angle of the whole set, so set both expressions equivalent to the given angle measure:
[tex]\displaystyle 166° = 66° + [4x]° \hookrightarrow \frac{100}{4} = \frac{4x}{4} \\ \\ \boxed{25 = x}[/tex]
I am joyous to assist you at any time.
choose all the numbers that are factors of 16
A. 2
B. 16
C. 3
D. 4
E. 8
F. 12
G. 6
H. 5
I. 10
J. 1
twinks are a social experiment
Answer:
Step-by-step explanation:
whT
I really need help pls!
Answer:
I think 2 if it is right then follow me
What is m∠PQR?
The PS is line segment. Q is the point between segments PS. QR is another line segment passes through segment PS. The angle PQR is (3x + 5) degree and angle SQR is (x + 3) degree.
Answer: m∠PQR = 134°
Step-by-step explanation:
Given: PS is line segment. Q is the point between segment PS. QR is another line segment passes through segment PS.
That means ∠PQR and ∠SQR are linear pair [Linear pair is a pair of two angles made on one line and their sum is 180°]
⇒ ∠PQR + ∠SQR = 180° (i)
Since, ∠PQR is (3x + 5)° and ∠ SQR is (x + 3)° [given]
Put this in (i), we get
(3x + 5)° + (x + 3)° = 180°
⇒ 3x + 5 + x + 3 = 180
⇒ 4 x + 8 = 180
⇒ 4 x = 180-8
⇒ 4 x = 172
Divide both sides by 4
⇒ x= 43
So, ∠PQR= (3(43) + 5)° = 134°
Hence, m∠PQR = 134°
The measure of m ∠PQR is 134 degrees.
GivenPS is a line segment.
Q is the point between segment PS.
QR is another line segment that passes through segment PS.
Which property of the triangle is used to solve the value of x?The sum of two angles made on one line is equal to 180 degrees.
[tex]\angle \rm PQR + \angle SQR = 180[/tex]
Where the angle QPR is (3x + 5) degree and angle SQR is (x + 3) degree.
Substitute all the values in the equation
[tex]\angle \rm PQR + \angle SQR = 180\\\\(3x+5) + (x+3) =180\\\\3x+5+x+3=180\\\\4x+8=180\\\\4x=180-8\\\\4x=172\\\\x = \dfrac{172}{4}\\\\x =43[/tex]
The value of x is 43 degrees.
Therefore,
The measure of m ∠PQR is;
[tex]\rm m \angle PQR = 3x+5 = 3(43) + 5= 129+5=134[/tex]
Hence, the measure of m ∠PQR is 134 degrees.
To know more about the Properties of triangles click the link given below.
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Wilbur and Mike are selling fruit for a school fundraiser. Customers can buy small boxes of grapefruit and large boxes of grapefruit. Wilbur sold 3 small boxes of grapefruit
and 14 large boxes of grapefruit for a total of $306. Mike sold 7 small boxes of grapefruit and 7 large boxes of grapefruit for a total of $252. What is the cost each of one
small box of grapefruit and one large box of grapefru
Answer:
both size boxes are $18 each
Step-by-step explanation:
Let x and y represent the costs of the small and large boxes, respectively. Then the two sales are ...
3x +14y = 306
7x +7y = 252
Doubling the second equation and subtracting the first, we have ...
2(7x +7y) -(3x +14y) = 2(252) -(306)
11x = 198
x = 18
y = 252/7 -x = 36 -18 = 18
A small box costs $18, as does a large box.
Answer:
both size boxes are $18 each
Step-by-step explanation:
Let x and y represent the costs of the small and large boxes, respectively. Then the two sales are ...
3x +14y = 306
7x +7y = 252
Doubling the second equation and subtracting the first, we have ...
2(7x +7y) -(3x +14y) = 2(252) -(306)
11x = 198
x = 18
y = 252/7 -x = 36 -18 = 18
A small box costs $18, as does a large box.
In a certain chemical, the ratio of zinc to copper is 3 to 19. A jar of the chemical contains 760 grams of copper. How many grams of zinc does it contain?
Answer:
760-19
x-3
x=760*3=2280
2280/19=120g of zinc
Step-by-step explanation:
Which statements are true? Select the five correct answers.
O √1.8 1
O √1.8 2
O √1.9 - √1.8 > 0.1
Answer:
it is A,B,C,E
Step-by-step explanation:
if thease our wrong then i am sorry i took the quiz 3 weeks ago and cannot quite remember what choices they were but i am pretty sure it was those if not then leave it to my brain to not remember
The simplest form of the function is f(x) = x2. The graph is a parabola often called the basic parabola.
What is a parabola?A parabola is an approximately U-shaped, mirror-symmetrical plane curve in mathematics. It corresponds to a number of seemingly unrelated mathematical descriptions, all of which can be shown to define the same curves. A parabola can be described using a point and a line.
here, we have,
Three different parabolas exist. Vertex form, standard form, and intercept form are the three forms. You can access a unique key feature for the graph on each form.
Any point on a parabola is at an equal distance from both the focus, a fixed point, and the directrix, a fixed straight line. A parabola is a U-shaped plane curve.
Solve f{x}=x-2?
f(x)=x-2 x∈R
x≤0
x-2≤2
Range of f(x)=[∞,2)
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complete question:
9. Which of the following statements are true? Check the boxes of the true statements.
and, attached below.
