Hi there.
To find the value of f(-5), we need to substitute x = -5 in the equation.
[tex]f( - 5 ) = 4(3 - ( - 5))[/tex]
Now then, know the basic rules of multiplying in the negative.
When you multiply the negative with the negative, you will get the positive.
Thus, - (-5) = 5
[tex]f( - 5) = 4(3 + 5) \\ f( - 5) = 4(8)[/tex]
Then distribute 4 inside.
[tex]f( - 5) = 32[/tex]
Therefore, the answer is f(-5) = 32
Please help! giving all the points I have!!! will give brainliest!!
Juan wants to solve the equation below using the Distributive Property.
4(6 – x) = 12
What should Juan’s first step be?
A. Multiply 4 by x.
B. Subtract x from 6.
C. Distribute 4 to (6 – x).
D. Subtract 4 from both sides.
Answer:
C. Distribute 4 to (6 - x).
Step-by-step explanation:
Person above is right.
Juan’s first step should be C. Distribute 4 to (6 – x).
What is distributive property of multiplication over addition?Suppose a, b and c are three numbers. Then we have:
a(b + c) = a b + a c
(a(b+c) means a multiplied to (b+c). The sign of multiplication is usually hidden when using symbols and both quantities which are in multiplication are written together without space)
We are given an equation as;
4(6 – x) = 12
Here Juan wants to solve the equation, using the Distributive Property.
thus, 4(6 – x) = 12
First step is to distribute 4.
4(6) – 4(x) = 12
Then solve;
24 - 4x = 12
x = 3
Hence, Juan’s first step should be C. Distribute 4 to (6 – x).
Learn more about distributive property here;
https://brainly.com/question/5637942
#SPJ2
Find the value of n.
Answer:
20cm
Step-by-step explanation:
Answer:
n = 15
Step-by-step explanation:
The area (A) of a triangle is calculated as
A = [tex]\frac{1}{2}[/tex] bh ( b is the base and h the height )
Here b = n + 1 and h = n + 1 - 5 = n - 4 , then
[tex]\frac{1}{2}[/tex](n + 1)(n - 4) = 88 ( multiply both sides by 2 to clear the fraction )
(n + 1)(n - 4) = 176 ← expand the left side using FOIL
n² - 3n - 4 = 176 ( subtract 176 from both sides )
n² - 3n - 180 = 0 ← in standard form
(n - 15)(n + 12) = 0 ← in factored form
Equate each factor to zero and solve for n
n - 15 = 0 ⇒ n = 15
n + 12 = 0 ⇒ n = - 12
However, n > 0 , thus value of n = 15
Work out the answers to:
a) 7 x(-4)
b) (-6) x 8
c) (-5) × (-9)
Answer:
A=-28 B=-48 C=45
Step-by-step explanation:
-(7x4)= -28 so your first step is multiply the positive and the negative equals a negative (+)x(-)=(-) second is to multiply the numbers
-(6)x8= -28 same steps for the first
(-5)x(9) convert it to 5x9=45
Find the total surface area of this prism where
the cross-section is an isosceles triangle.
13 cm
5 cm
10 cm
24 cm
Answer:
The total surface area of the prism is 620 cm²
Step-by-step explanation:
The total area of the prism = lateral area + 2 (area of the cross-section)
The lateral area = perimeter of the cross-section × height
∵ The cross-section of the prism is an isosceles triangle
∵ The sides of the triangle are 13 cm, 13 cm, 24 cm
∵ The perimeter of the triangle is the sum of its sides
∴ The perimeter = 13 + 13 + 24 = 50 cm
∴ The perimeter of the cross-section = 50 cm
∵ The height of the prism is 10 cm
→ Use the rule of the lateral area above to find it
∴ The lateral area of the prism = 50 × 10 = 500 cm²
∵ The area of the triangle = [tex]\frac{1}{2}[/tex] × base × height
∵ The base of the triangle = 24 cm
∵ The height of the triangle = 5 cm
∴ The area of the triangle = [tex]\frac{1}{2}[/tex] × 24 × 5 = 60 cm²
∴ The area of the cross-section = 60 cm²
→ Substitute the lateral area and the area of the cross-section in the rule
of the total surface area above
∵ The surface area = 500 + 2(60)
∴ The surface area = 500 + 120
∴ The surface area = 620 cm²
∴ The total surface area of the prism is 620 cm²
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Solve the simultaneous equations:
4x+3y=44
3x+3y=39
x=
and y=
Answer:
X = 5 and Y = 8
Step-by-step explanation:
4x + 3y = 44
3x + 3y = 39
- - -
__________
x = 44 - 39
x = 5........eq 1
Now putting the values in any equation
4 ( 5 ) + 3 y = 44
20 + 3 y = 44
[tex]4(5) + 3y = 44[/tex]
[tex]20 + 3y = 44[/tex]
[tex]3y = 44 - 20[/tex]
[tex]3y = 24[/tex]
[tex]y = \frac{24}{3} [/tex]
[tex]y = 8[/tex]
Match each expression to the description shown. Answers may be used more than once.
What is the solution of the equation (4x + 3)2 = 18?
O x = 3 and x = -3
O x = -3 and x = 3
=
2
O x= -3+372 apd x = -3-3,2
4
4
x= 3+372 and x = -3 +372
4
Answer:
Step-by-step explanation:
2(4x+3)=18
8x+6=18
-6 -6
8x = 18
÷8 ÷8
x = 2.25
ive tried multiple ways and they are all different to the provided answers
Find the sum of the first 40 terms of a geometric sequence where the first term is 16 and the common ratio is 1.1. 704 7,081.48089 7,805.62898 6,423.16445
Step-by-step explanation:
The nth term of a geometric progression can be determined by using the formula:
Tn=arn−1
where: a = first term and r = common ratio
Substitute the given values of first term and common ratio into the formula:
Tn=arn−1
T5=(40)(0.5)5−1
T5=(40)(0.5)4
T5=(40)(0.0625)
T5=2.5
Micah rows his boat on a river 4.48 miles downstream, with the current, in 0.32 hours. He rows back upstream the same distance, against the current, in 0.56 hours. Assuming his rowing speed and the speed of the current are constant, what is the speed of the current?
3 miles per hour
8 miles per hour
11 miles per hour
14 miles per hour
Answer:
its 3 miles per hour which is A
Step-by-step explanation:
i got it right on the test
How would you solve equations with 3 sides or whatever this is
Answer: B. -4 < y < -1
Step-by-step explanation:
1. Subtract 2 from all three sides to isolate the variable in the center of the inequality
5 < 2 - 3y < 14
3 < -3y < 12
2. Divide each of the three sides by -3 to get y by itself, as each of the answers have y as independent.
3 < -3y < 12
-1, y, -4
3. Rearrange
-4 < y < -1 (b)
4) Name The Angle Pair Represented And Solve For x. *
37°
(6x - 11)
Answer:
x = 8
Step-by-step explanation:
The attached figure shows the angle pair representation.
Here, two lines are cut by a transversal. It means the corresponding angles are equal i.e.
37 = 6x-11
37+11 = 6x
6x = 48
x = 8
Hence, the value of x is 8.
help almost done....
which is greater -4/5 or -7/8
Answer:
-7/8 is greater
Step-by-step explanation:
-4/5=-0.8
-7/8=-0.875
To find the greater fraction, we can use the butterfly method.
Cross multiply the numerator by the denominator.[tex](-\frac{4}{5} )(- \frac{7}{8} )[/tex]
[tex]-\frac{4\times8}{5\times7}=\frac{32}{35}[/tex]
Therefore, [tex]-\frac{4}{5}[/tex] is greater than [tex]-\frac{7}{8}[/tex].
Simply the expression (5x+9y) - (11x-3y+7)
Answer:
-6+12y-7
Step-by-step explanation:
Who doesn't like short answers, instead of writing a hole paragraph.
Answer:
[tex]-6x + 12y - 7[/tex]
Step-by-step explanation:
[tex](5x + 9y) - (11x - 3y + 7)[/tex]
Lets open the brackets.
[tex]=> 5x + 9y - 11x + 3y - 7[/tex]
Now lets add/substract the like terms only.
[tex]=> 5x - 11x + 9y + 3y - 7[/tex]
[tex]=> -6x + 12y - 7[/tex]
A 20-oz bottle of soda is $1.79. A 32-oz bottle is $3.49. Which has the lower unit cost?
a) the smaller size
b) the larger size
c) the unit cost is the same
"What is the Part to Total Ratio for purple Globbles to total Globbles? There are 5 purple Globbles and 15 Globbles in all. Remember to reduce!"
Answer:
1÷3Step-by-step explanation:
5 purple Globbles and 15 Globbles in total.
Part to Total Ratio for purple:
5÷15 = 1÷3Combine Like Terms
22+15x=34-17x
Step-by-step explanation:
22+15x=34-17x
So now, the 34 will join the 22 and the 15x will join the -17x
22-34=-17x-15x
-12=-2x
So now, we divide both sides by -2x
and the negative will cancel negative so
x=6
The price of a necklace was increased by 10% to £154.
What was the price before the increase?
Answer:
answer in attached picture
Answer:
£169.4
Step-by-step explanation:
£154.00 + 10% = 169.4
Brainliest Please??!!??
- ElizabethKate
Kelsey can buy 2 pounds of apples for 7 dollars
Answer:
each pound cost 3.5 dollars
Step-by-step explanation:
7/2
Answer: each pound is 3.50 dollars
Step-by-step explanation: 7.00 divided by 2 is 3.50 dollars
Find the area of the shape below.
10 cm
27 cm
9 cm
24 cm
Answer:
there is no shape below
How many cups are in 5 quarts
Answer:
20 cups are in 5 quarts
Step-by-step explanation:
Answer:20 cups
Step-by-step explanation:because each cup is 0.25 quarts
plz leave a like
−40+10a= \,\,-70 −70
Answer:u did it wrong
Step-by-step explanation:
Sandy has 27 roses, 9 daisies, and 18 tulips. She wants to arrange all the flowers in bouquets. Each bouquet has the same number of flowers and the same type of flower. What is the greatest number of flowers that could be in a bouquet?
Answer:
The greatest number of flowers that could be in a bouquet is 9 flowers
Step-by-step explanation:
We solve the above question using Greatest Common Factor method. We find the factors of 27, 9 and 18. The greatest factor common to the 3 number is our answer.
The factors of 9 are: 1, 3, 9
The factors of 18 are: 1, 2, 3, 6, 9, 18
The factors of 27 are: 1, 3, 9, 27
Then the greatest common factor is 9.
The greatest number of flowers that could be in a bouquet is 9 flowers
What do you need to do to a variable with a coefficient?
For example: 4n=20.
add
subtract
divide
multiply
Answer:
wouldnt it be 5
Step-by-step explanation:
What is the measure of angle JHN.
Answer:
it's a)25
Step-by-step explanation:
angle MHL and JHN+NHK should be the same, they both are 95 degrees
Answer:
45°
Step-by-step explanation:
first of all find X
(3x+20) - (x+25) =x + 20
3x+20-x-25=x+20
3x-x+20-25=x+20
2x-5=x+20
collect like terms
2x-x=20+5
x=25°
recall JHN= (x+20)°
x=25
JHN=((25)+20)°
JHN=(25+20)°
JHN=45°
Hope it is helpful
Expand and simplify (x - 6)(x + 2)
Step-by-step explanation:
hope it is helpful to you
Please help is this undefined or 0?
Answer:
0
Step-by-step explanation:
A horizontal line has slope zero since it does not rise vertically (i.e. y1 − y2 = 0), while a vertical line has undefined slope since it does not run horizontally (i.e. x1 − x2 = 0).
Answer:
0
Step-by-step explanation:
Undefined slopes are vertical, this is horizontal
hope this helps
use the distributive property to rewrite 4(x+9)
Answer:
4x+36
Step-by-step explanation:
4*x+4*9
4x+36