Answer:
the solution is D, x<-15.
Answer:
D.x<-15
Step-by-step explanation:
-3x-42>3
-3x>3+42
-3x>45
x<-45/3
x<-15
Find the solutions to the equation x2 - 15x - 100 = 0.
Answer:
X= 20 or -5
Step-by-step explanation:
Part 1: What is the rate of rice to quarts of water for this recipe that uses 4 pounds of rice and 5 quarts of boiling water?
Given:
A recipe uses 4 pounds of rice and 5 quarts of boiling water.
To find:
The rate of rice to quarts of water for this recipe.
Solution:
We need to divide the amount of rice by amount of water to get the rate of rice to quarts of water for this recipe.
[tex]\text{Required rate}=\dfrac{\text{Rice in pounds}}{\text{Water in quarts}}[/tex]
[tex]\text{Required rate}=\dfrac{4}{5}[/tex]
[tex]\text{Required rate}=0.8[/tex]
Therefore, the rate of rice to quarts of water for this recipe is 0.8.
the table shows the results of a class survey About pets. suppose 53 students were surveyed. about how many students have one pet? Justify your answer.
Answer:
26.5
Step-by-step explanation:
The table shows that 1/2 of all the students surveyed have one pet.
[tex]53 \times \frac{1}{2} = 26.5[/tex]
To make 12 ounces of hot chocolate, 3 tablespoons of cocoa are needed. How many tablespoons of cocoa are needed to make 72 ounces of hot chocolate?
Answer:
18
Step-by-step explanation:
pls help me ill mark you brainliest and show your work please
Answer:
Infinately many solutions.
Step-by-step explanation:
2x-4=2(x-2)
Distribute
2x-4=2*x-2*2
2x-4=2x-4
Since both sides are the same, there are infinately many solutions.
Hope this helps!
INSTRUCTIONS: Calculate the Mean, Median, Mode, and Range from the data set (February 14-28, 2021).
10.9, 10.4, 9, 5.7, 7.8, 9.3, 2.2, 11, 9.6, 4.8, 7.4, 8.4, 7.7, 10.8, 7.7, 10.8, 13.7 (PLS HELP)
Answer:
The mean is 128.7
There is no mode
The median is 9
The range is 11.5
Step-by-step explanation:
P(x)=0.2x^2+20x-4 where x is the number of units sold. How many units need to be sold for the business to make a profit of $101?
Answer:
5
Step-by-step explanation:
Given the profit equation ;P(x)
x = number of units sold
P(x) = profit made
P(x) = 101
101 = 0.2x^2+20x-4
0.2x^2+20x-4 - 101
0.2x² + 20x - 105 = 0
Using the formula:
-b±[sqrt(b² - 4ac) / 2a]
Where ;
a = 0.2 ; b = 20, c = - 105
Using the quadratic equation solver to save time :
The roots are :
-105 and 5
Items sold cannot be negative ;
Hence, x = units sold = 5
Percentage can be written as a percent, fraction or decimal. Which is a correct example of this? 85%=85/100=0.85 85%=85/10=0.085 85%=85/1000=0.85 85%=85/100=0.085
Answer:
85% - 85/100 - 0.85
Step-by-step explanation:
Carol ate 25% of the candies in the bag. If Carol ate 24 candies, how many candies were there total in the bag?
Answer:
6
Step-by-step explanation:
100/4 = 25%
24/4 = 6
Which is a quadrilateral that could have one pair of parallel sides and one pair of sides that are not parallel?
Answer:
trapezoid.
Step-by-step explanation:
A trapezoid is a convex quadrilateral. A trapezoid has at least on pair of parallel sides. the parallel sides are called bases while the non parallel sides are called legs
Characteristics of a trapezoid
It has 4 vertices and edges
If both pairs of its opposite sides of a trapezoid are parallel, it becomes a parallelogram
Area of a trapezoid = [tex]\frac{1}{2}[/tex] x (sum of the lengths of the parallel sides) x height
Perimeter = sum of lengths of sides of a trapezoid
I need help with these
Stephanie wants to make 22.5 qt. of a 20%
alcohol solution by mixing together a 6%
alcohol solution and a 36% alcohol solution.
How much of each solution must she use?
Answer:
y = 10.5qt
x = 12 qt
Step-by-step explanation:
0.6x+ 0.36y = 22.5 * 0.2
0.06x + 0.36y = 4.5
x + y = 22.5
x = 22.5 - y
0.06(22.5 - y) + 0.36y = 4.5
1.35 - 0.06y + 0.36y = 4.5
0.3y = 4.5 - 1.35
0.3y = 3.15
y = 3.15 / 0.3
y = 10.5 qt
x = 22.5 - y
x = 22.5 - 10.5
x = 12 qt
Surface area
Please help!!
Math, surface area
Answer:Surface area is the sum of the areas of all faces (or surfaces) on a 3D shape. A cuboid has 6 rectangular faces. ... We can also label the length (l), width (w), and height (h) of the prism and use the formula, SA=2lw+2lh+2hw, to find the surface area.
https://youtu.be/sskf3tF2heU?t=8
Explain why cos E
-
СВ/AB
Answer:
Note that the three identities above all involve squaring and the number 1.You can see the Pythagorean-Theorom relationship clearly if you consider the unit circle, where the angle is t, the "opposite" side is sin(t) = y, the "adjacent" side is cos(t) = x, and the hypotenuse is 1.. We have additional identities related to the functional status of the trig ratios:
Step-by-step explanation:
Please help me I am almost done
Answer:
129 ?
Step-by-step explanation:
.
¿En qué caso es más útil emplear el método de sustitución? ¿En qué caso es más útil emplear el método de reproducción
Answer:
I know this
Step-by-step explanation:
but I dont :) goodluck tho
which is a rational number
a) 1.4142135623
b) 3.6256256
c) 2 (pie)
d) squared 5
Answer:
Rational numbers can be expressed as a fraction
Squared 5 = 25
25 can be expressed as a fraction- 25/1, so d is correct.
Let me know if this helps!
5 squared is right im sorry i miss read it
Pease help Marking Brainiest
Answer:
150 miles
Step-by-step explanation:
x = 30y
5 inches x 30 = 150 miles
Loki wrote 1/6 of a page in 1/12 of a minute. How much time does it take him to write a full page?
Steve has a piece of fishing line measuring 6 yards. How many 1-inch strips can be cut from the line? Answers:a 6 strips b 18 strips c 36 strips d 72 strips
Answer:
216
Step-by-step explanation:
1 yard = 36 inches
so 6 yards would equal : 6 x 36 = 216 inches
Thus 216 strips would be cut
Step-by-step explanation:
D) 72 strips
5
A rectangle has a width that is 5 feet less than the length. The area of the rectangle is
126 square feet. Find the width of the rectangle. (Do not type units in the answer)
Answer:
Step-by-step explanation:
Sloths climb through the canopy while hanging upside down. If it takes a sloth 10 minutes to climb 7.5 feet, what's its climbing speed in miles per hour?
Answer:
0.00852 miles per hour
Step-by-step explanation:
Given that:
Distance = 7.5 feets
Time taken = 10 minutes
Speed = distance / time taken
Speed = 7. 5 feets / 10 minutes = 0.75 feets / minutes
Converting to miles per hour :
0.75 feets / minute :
1 mile = 5280 feets
1 minute = 1/60 = 0.0166666 hour
0.75 feets / minute = (0.75/5280)mile / 0.0166666
= 0.0001420 / 0.0166666 mile per hour
= 0.0085200 miles per hour
= 0.00852 miles per hour
im stuck on this question
Answer: f
Step-by-step explanation: I chose f because m=29.57 which is is the starting point
HELP ASAP!! BEST ANSWER GETS BRAINLY! pls only answer if u know the answer this is a test!
Which answer is the slope-intercept form for the given equation? 1/3x+2y=4/3
y=2/3x+4/3
y=−1/6x+4/3
y=−2/3x+2/3
y=−1/6x+2/3
Answer:
It's the fourth one y=-1/6x+2/3
Step-by-step explanation:
Jerry played with 333 friends today, all at different times. He played with Tommy for 1\dfrac{7}{8}1 8 7 1, start fraction, 7, divided by, 8, end fraction hours, then Nathan for 1\dfrac{3}{4}1 4 3 1, start fraction, 3, divided by, 4, end fraction hours, then Chris for \dfrac{3}{2} 2 3 start fraction, 3, divided by, 2, end fraction hours. How many hours did Jerry play with his 333 friends today?
Answer:
8 1/8 hours
Step-by-step explanation:
Jerry played with 3 friends today, all at different times.
Tommy = 1 7/8 hours
Nathan = 1 3/4 hours
Chris = 3 3/2 hours
How many hours did Jerry play with his 3 friends today?
Number of hours Jerry play with his 3 friends today = 1 7/8 + 1 3/4 + 3 3/2
= 15/8 + 7/4 + 9/2
= (15+14+36)/8
= 65/8
= 8 1/8 hours
which measurement is closest to the length of one string of lights in feet ??
Answer:
17 ft
Step-by-step explanation:
What is the area of the rectangle, in square feet?
A rectangle with length 20 feet and width 9 feet.
29
58
120
180
cos s=-2/5 and sin t=4/5, s and t are in quadrant II
find cos(s+t) and cos(s-t)
Answer:
•cos(s+t) = cos(s)cos(t) - sin(s)sin(t) = (-⅖).(-⅗) - (√21 /5).(⅘) = +6/25 - 4√21 /25 = (6-4√21)/25
•cos(s-t) = cos(s)cos(t) + sin(s)sin(t) = (-⅖).(-⅗) + (√21 /5).(⅘) = +6/25 + 4√21 /25 = (6+4√21)/25
cos(t) = ±√(1 - sin²(t)) → -√(1 - sin²(t)) = -√(1 - (⅘)²) = -⅗
sin(s) = ±√(1 - cos²(s)) → +√(1- cos²(s)) = +√(1 - (-⅖)²) = √21 /5
PLZ HELP IF CORECT WILL GIVE BRAINLIST
Answer:
65 meters
Step-by-step explanation:
you add all the side/numbers together
help me find the rate of change
Answer:
3
Step-by-step explanation:
To find the rate of change, we want to use the slope formula: (y₂ - y₁) / (x₂ - x₁)
Plug in these values using two given points. I will use the first and last points.
(1, -2) & (13, 34)
(34 - (-2)) / (13 - 1)
Simplify the parentheses.
= (34 + 2) / (12)
= 36/12
Simplify the fraction.
36/12
= 3
This is your slope.
Hope this helps!