Answer:
x= -5
x= 9
Step-by-step explanation:
Answer:
x = - 5, x = 9
Step-by-step explanation:
To find the zeros equate f(x) to zero, that is
(x + 5)(x - 9) = 0
Equate each factor to zero and solve for x
x + 5 = 0 ⇒ x = - 5
x - 9 = 0 ⇒ x = 9
A scientist has two solutions, which she has labeled Solution A and Solution B. Each contains salt. She knows that Solution A is 55% salt and Solution B is 80%
salt. She wants to obtain 30 ounces of a mixture that is 65% salt. How many ounces of each solution should she use?
what is 9/32 + 7/8 plz help
Answer:
1 5/32
Step-by-step explanation:
First, find common denominators. What you do to the denominator, you must do to the numerator.
First, multiply 4 to both the numerator and denominator of the second fraction:
(7/8)(4/4) = (7 * 4)/(8 * 4) = 28/32
Next, add across:
9/32 + 28/32 = 37/32
Simplify. Turn the improper fraction into a mixed fraction:
37/32 = (32 + 5)/32 = 1 5/32
1 5/32 is your answer.
~
Answer:
37 /32
Step-by-step explanation:
Find the least common denominator or LCM of the two denominators:
LCM of 8 and 32 is 32
For the 1st fraction, since 8 × 4 = 32,
7 /8 = 7 × 4
8 × 4 = 28 /32
Likewise, for the 2nd fraction, since 32 × 1 = 32,
9 /32 = 9 × 1
32 × 1 = 9 /32
Add the two fractions:
28 /32 + 9/32 = 28 + 9 /32 = 37 /32
So, 7/8 + 9/32 = 37/32
In mixed form: 1 5 /32
Please mark as brainliest!
please help! Giving points!
Answer:
Bee
Step-by-step explanation:
Ya like jazz?
how would the numbers 6870000 appear in scientific notation on a calculator screen
Answer: D
Step-by-step explanation:
The sum of 6.7 and a number is negative. What is a possible value for that number? Explain.
Answer:
The number must be greater than 6.7. Thus, the sum will be negative.
For example, the number could be 7.
6.7 - 7 = -0.3
The number can be in the range - x ∈ (- ∞ , - 6.7)
We have - the sum of 6.7 and a number is negative.
We have to determine the possible value of that number.
For what range of values of x, the given function is equals to a negative value -y = f(x) = 2x + 10For f(x) to be negative -
f(x) < 0
2x + 10 < 0
2x < - 10
x < - 5
x ∈ (- ∞ , - 5)
According to the question, we have - the sum of 6.7 and a number is negative.
Now -
6.7 + x < 0
x < 6.7
x ∈ (- ∞ , - 6.7)
Hence, the number can be in the range - x ∈ (- ∞ , - 6.7).
To solve more questions on Numbers and range, visit the link below -
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How do I find x in this problem?
Answer:
(6-2)×180 = 720
101+154+72+123+145+x=720
595 + x = 720
x = 720-595
x= 125
You're given two side lengths of 10 centimeters and 8 centimeters. The angle between the sides measures 40°. How many triangles can you constructusing these measurements?
Answer: The 40° angle and the fixed side lengths of 10 cm and 8 cm uniquely determine the locations of Points A and B. Thus, you can construct only one triangle using these measurements.
Step-by-step explanation:
Hope it helps mark me brainliest.
PLEASE HRY ILL MARK BRAINLIEST
give the equation of the line passing through the points (-2,-5)
and (1,-1/2)
how do you solve this
-6(-3y-6)-10(6y-8) in simplest form
Answer:
Step-by-step explanation:
18y + 36 - 60y + 80
116 - 42y
Answer:
-42y+116
Step-by-step explanation:
Expand:
-6(-3y-6)-10(6y-8)
Simplify:
18y+36-60y+80
15 POINTS-
Karen invented a new product that she makes for $2.45. She sells the
product to Walmart marked up 45%. How much does Walmart pay for the
product?
Harrison wants to buy a new baseball glove that costs $37.99. The store charges 7.8% tax for every purchase. If Harrison pays for the glove with a $50 bill, how much change should he receive?
Answer:
jhhhhh
Step-by-step explanation:
hgvjjjyy
help me this is due this period please please ill mark brainiest with a bunch of points.
Answer:
(-4,1)
Step-by-step explanation:
The answer is just where the two lines intersect
I'm rather tired so double check me on this but I'm getting about (-4,1) and it's asking for an approximation so think (-4,1) is fine
Answer:
It's around (-4. 5, 1.5). It's somewhere in that range.
Cook´s bakery is making 15 cakes . Each contains 2 cups of flour . How many cups of flour {f} are needed to make all the cakes
Answer:
A
Step-by-step explanation:
i got from USATestprep
ok can you pls answer this
The test will cover 120 pages in his textbook. He has read only 36 pages. If he plans to read an equal amount every day of the week to finish the 120 pages, how much must read each day?
Answer:
He must read each day=12 pages
Step-by-step explanation:
We are given that
Total number of pages in textbook=120
He has read number of pages=36
Number of days in a week=7
We have to find the number of pages read each day to finish 120 pages in a week.
Number of pages remaining for reading=120-36
Number of pages remaining for reading=84
Now,
Number of pages read each day=[tex]\frac{84}{7}[/tex]
Number of pages read each day=12
Hence, he must read each day=12 pages
Each day that Kevin rides the train to work, he pays $2.50 each way. If Kevin takes the train to work and back 3 times, which amount represents the change in his money?
Solve the inequality
x2-x-12 < 0
+
Step-by-step explanation:
x2-x-12<0
x2-x<12
x=12
5k - 9 - 2k + 3 = 3k - 6
y=2x^2-8x
find a b and c then find the vertex then graph it
Answer:
y=2x2−8x
y=2x2−8x
Step-by-step explanation:
Xmin:
-10
Xmax:
10
Ymin:
-10
Ymax:
10
write 8,000,000 in scientific notation ?
Answer:
A: 8 x 10^6
Step-by-step explanation:
A card is in the shape of a rectangle. The length of the card is 7 cm
and the area of the card is 35 sq cm. What is the width of the card in
centimeters?
lol ok so
7*something or you can make it into a variable x=35
7*x=35
/7 /7
x=5.
What is the coefficient of 3y+7?
Answer:
3
Step-by-step explanation:
it's 3 because the number is infront of a variable
Evaluate each expression
P + 8 when P = 6
show ya work
Answer:umm so with my super jimmy neutron powers the answer is 14 because since P = 6 the equation turns into 6 + 8=14
What is -1 1/3 in a decimal
Answer:
1.333
Step-by-step explanation:
if rounded then it's 0.333
if wrong I apologize
Carson wants to install wallpaper on the wall in his bedroom with the shape and dimensions shown below. 14 ft 11 ft 12 ft - To determine the area of the wall, he divides it into a triangle and a rectangle. What are the dimensions of the triangle?
Answer:
B
Step-by-step explanation:
Answer:
Its B
Step-by-step explanation:
I did the test.
Evaluate the following expressions given x=6 and y=-3
a.
[tex] \purple{5 \times 6 - 4 \times ( - 3)}[/tex]
[tex] = 30 + 12[/tex]
[tex] \blue{ = \boxed{42}}[/tex]
b.
[tex] \purple{ {6}^{2} + \frac{6}{ - 3} }[/tex]
[tex] = 36 - 2[/tex]
[tex] \blue{ = \boxed{34}}[/tex]
c.
[tex] \purple{(6 - 5 {)}^{3} + {( - 3)}^{2} }[/tex]
[tex] = {1}^{3} + 9[/tex]
[tex] = 1 + 9[/tex]
[tex] \blue{ = \boxed{10}}[/tex]
=============================Hope it helps
=============================If x = 8, what is the value of 4x + 6?
I NEED HELP! I’m on a test!!
Answer:
=38
Step-by-step explanation:
Use substitution :3
4(8)+6=38
substitute x to 8 then calculate!
There you'll get your answer.
the required value of expression 4x + 6 is 38 when x = 8.
If x = 8, what is the value of 4x + 6 to be determine.
In mathematics, it deals with numbers of operations according to the statements.
The equation is the relationship between variables and is represented as y = 4x +8 is an example of a polynomial equation.
Here, the expression is given as,
y = 4x + 8
now we have x = 8, put this x in y
y = 4(8) + 6
Solving the equation using the PEMDAS rule of mathematics
1St open the parenthesis of 8 then multiply this 8 by 4.
y = 4*8 +6
y = 32 + 6
Now adding 32 and 6 will give 38
y = 38
Thus, the required value of expression 4x + 6 is 38 when x = 8.
Learn more about arithmetic here:
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Karen recorded the numbers of people getting off her tram. The mean number for 10 stops is 6.3. After the tram stops at the 11th stop, the mean is 8. How many people got off the tram at the 11th stop?
Answer:
32 people got off
Step-by-step explanation:For the 10th stop, we can get the total number of people that have gotten off
Mathematically, this is the product of the mean and the number of stops
= 10 * 6.3 = 63 people
Now, for the 11th stop, the total becomes
11 * 8.6 = 94.6
HELP PLS !!!!!!!!!!....