Answer:
B) (-2,1)
Step-by-step explanation:
In order to find a solution to a system of equations, substitute the point's x and y values into both of the equations, solve, and see if it makes the equation true.
1) Let's try the point (-2,1). First, substitute its x and y values into the first equation, 3x - 3y = -9. Thus, substitute -2 for x and 1 for y in the equation and solve:
[tex]3x-3y = -9\\3(-2)-3(1) = -9\\-6 - 3 = -9 \\- 9 = -9[/tex]
-9 does equal -9, thus (-2, 1) makes the first equation true.
2) Now, do the same thing but with the second equation, 2x + y = -3. Again, substitute -2 for x and 1 for y and solve:
[tex]2x + y = -3\\2(-2) + (1) = -3\\-4 + 1 = -3\\-3 = -3[/tex]
-3 does equal -3, thus (-2, 1) makes the second equation true.
By substituting its values into both equations, we saw that it made both equations true. Thus, (-2,1) is the answer.
IM ASKING AGAIN NEED HELPPPPPPPPP
Answer:
Step-by-step explanation:
It's should be c if it not then sry
Billy had 5 gallons of paint. Bob had 4 kilograms of paint. How do you make the paint amount equal?
Answer:
We can make the paint amount equal by making sure the parameters have the same unit
Step-by-step explanation:
Billy had 5 gallons of paint. Bob had 4 kilograms of paint. How do you make the paint amount equal?
To solve the above question, we have the conversion rate:
We can make the paint amount equal by making sure the parameters have the same unit
Hence:
1 gallon (gal) = 3.785411784 kilogram (kg).
Billy had 5 gallons of paint.
1 gallon (gal) = 3.785411784 kilogram (kg).
5 gallons of paint = x
Cross Multiply
x = 5 × 3.785411784 kg
18.92705892 kilograms of paint
Approximately 18.93 Kilograms of paint
Therefore, Billy had 18.93 kg of paint and Bob had 4 kg of paint
The base of a triangle prism shown is an isosceles triangle having a height of H cm, and an area of 36cm squared
The perimeter of the front rectanglular face of the prism is 54cm
state the value of h on the diagram
Answer:
the value of h on the diagram is 9cm
Step-by-step explanation:
area = 1/2 * base * height
a = 1/2*b*h
36=1/2*8*h
36=4h
since the 1/2 will multiply the 8
36=4h
multiply both sides by 4
h=9cm.
Help me pleaseeeeeeeeeee
Answer:
It should be C because it's a working function
Which of the following numbers is an integer but not a whole number?
5/9
– 24
-3/5
98
Answer:
Step-by-step explanation:
the last one
LLoyd used 1/4 of chocolate to make 2/3 gallons of chocolate pudding. If Lloyd's recipe is for 1 gallon of pudding, how many pounds of chocolate will he need to make 1/3 the recipe?
Answer:
1/8
Step-by-step explanation:
Llyod used 1/4 chocolates to make 2/3 gallons of chocolate pudding
= 1/4 ÷ 2/3
= 1/4 × 3/2
= 3/8
Therefore the number of pounds needed to make 1/3 of the recipe can be calculated as follows.
= 3/8 × 1/3
= 3/24
= 1/8
The graph of the equation y= ax^2 , where a is > O , is shown below, If a is multiplied by 1/2 , the graph of the new equation is
a
A widet and opens downward
B
Wider and opens upward
C
Narrower and opend downward
D
Narrower and opend upward
Answer:
wider and opens downward
Step-by-step explanation:
Can someone please help me with these
Answer:
1. 1072.6
2. 753.6
3. 194.2
4. 59.5
5. 4848.3
6. 1818.3
Step-by-step explanation:
We have to use the trigonometric functions sin, cos, and tan. Remember the mnemonic SOH-CAH-TOA when solving these problems. (sinθ=opposite/hypotenuse, cosθ=adjacent/hypotenuse, tanθ=opposite/adjacent)
1. tan(40)=900/x
x=900/tan(40)
x=1072.6
2. tan(37)=x/1000
1000tan(37)=x
753.6=x
3. sin(18)=60/x
x=60/sin(18)
x=194.2
4. sin(48)=x/80
80sin(48)=x
59.5=x
5. tan(22)=x/12000
12000tan(22)=x
4848.3=x
6. tan(33)=x/2800
2800tan(33)=x
1818.3=x
evaluate x+16, when x=8
Answer:
24
Step-by-step explanation:
x + 16
8 + 16
= 24
You just plug in 8 in the x place. Hope this helps, thank you !!
if a/b=2/3, find the value of 3a/4b
Answer:
1/2
Step-by-step explanation:
Given data
from the expression a/b=2/3 we can see that
a= 2
b= 3
given the expression
3a/4b
=3*2/4*3
=6/12
=1/2
Hence the answer is 1/2
A major storm has winds speeds that are at least 110 miles per hour.Write and solve an inequality that describes how much greater these wind speeds are than the slowest hurricane
Answer:
x ≥ 36 miles per hour
Step-by-step explanation:
The speed of a major storm is at least 110 miles per hour while the speed of the slowest hurricane is at least 74 miles per hour.
Let x represent how much greater these wind speeds are than the slowest hurricane. Therefore:
x ≥ 110 miles per hour - 74 miles per hour
x ≥ 36 miles per hour
This means that the winds speed must be 36 miles per hour greater than the slowest hurricane.
Find the slope of the line
through the points (-2, 6) and (4, 12)?
9 = v + 4/v + 12
Solve each equation
Answer:
V = -3/5
Step-by-step explanation:
Hope this helps. Pls give brainliest.
Write the rule for the arithmetic sequence in slope intercept form: 17,12, 7, 2....
9514 1404 393
Answer:
an = -5n +22
Step-by-step explanation:
We observe that the sequence has 17 as its first term and a common difference of 12-17 = -5. Then the general term is ...
an = a1 +d(n -1)
an = 17 -5(n -1)
This can be simplified to the desired form.
an = 17 -5n +5
an = -5n +22
pls help its due today pls porfavor
question 1-10
factoring x^2+bx+c
Answer:
D) -2 and 5
Step-by-step explanation:
hey carlos how have good day
[tex]2x^2-20x=x^{2} -19[/tex]
Answer:
x = 1, x = 19
Step-by-step explanation:
Given
2x² - 20x = x² - 19 ( subtract x² - 19 from both sides )
x² - 20x + 19 = 0 ← in standard form
(x - 1)(x - 19) = 0 ← in factored form
Equate each factor to zero and solve for x
x - 1 = 0 ⇒ x = 1
x - 19 = 0 ⇒ x = 19
I NEED TO PASS!!!!
The table shows a relationship between values of x and y.
Which of the following equations describes the relationship for the values in the table?
A.
y = 2x^2 – 1
B.
y = x^2 + 3
C.
y = 2x^2 + 1
D.
y = 10x – 3
Answer:
A. y = 2x^2 - 1Step-by-step explanation:
Try the points of x and y by substitution
This gives us the function:
y = 2x^2 - 1
HOW MUCH WRAPPING PAPER DO YOU NEED TO COVER THE
ENTIRE BOX WITHOUT WASTING ANY PAPER?
Answer:
290 inches
Step-by-step explanation:
John bikes for 1014 hours at a rate of 3.25 miles per hour. Then, he bikes for 534 hours at a rate of 9.3 miles per hour. Which expression can be used to find the total distance, in miles, that John traveled? help plsssss
Answer:
8,261.7
Step-by-step explanation:
multiply the unit rate by the amount of miles they bike
The hypotenuse of a right triangle measures 14 cm and one of its legs measures 3 cm.
Find the measure of the other leg. If necessary, round to the nearest tenth.
Answer:
13.7cm
Step-by-step explanation:
x² = 14²-3² = 187
x = √187 = 13.7cm
Answer:13.7
Step-by-step explanation:it says it is correct on deltamath.
can someone write
[tex] \frac{x}{3 \sqrt{x} } [/tex]
in index form
I don't know how to write it in index form but I can Rationalize the Denominator.
Rationalize the Denominator: [tex]\frac{\sqrt{x} }{3}[/tex]
Please help me with both of these!!
(2/3x+2-1/6x+4)*1/5÷1/5=
Answer:
1/2x+6
Step-by-step explanation:
I'm assuming you want to simplify .
1/5 divided by 1/5 equals 1
(2/3x+2-1/6x+4) x 1 - Multiply by one and it stays the same
2/3x+2-1/6x+4 - Calc. Difference between 2/3x and -1/6x and add 2+4
1/2x+2+4
1/2x+6
78 x 92 rounding to 1 significant figure
Answer:
7176
Step-by-step explanation:
78×92= 156 + 7020= 7176
class 7th maths chapter 13 Exponents of Power This is Test question
Answer:
-11/7
Step-by-step explanation:
11POINTS HELP Pretty Pwz
Answer:
the cube root of 512 is 8
Step-by-step explanation:
8×8×8=512
Answer:
8
Step-by-step explanation:
[tex]\sqrt[3]{512} =8[/tex]
All measures of the cube are the same so to get the volume u just multiply themselves 3 times x^3
Please help... I can't fail this.
Answer:
it can consist of translations, reflections, and rotations
Step-by-step explanation:
i would say reflection, then slide right, then slide down
Chris works at a jewelry store, and he earns 4% commission on all sales that he makes. If Chris's jewelry sales total $1,370, how much will he earn in commission?
Answer:
[tex]\boxed {\boxed {\sf \$54.80}}[/tex]
Step-by-step explanation:
Chris earns the commission on the jewelery sales. To calculate what he earned, multiply the commission rate and his sales.
[tex]commission= commission \ rate * sales[/tex]
His rate is 4% and his sales are $1,370
[tex]commission= 4\% * \$1370[/tex]
Convert the percent to a decimal. Divide by 100 or move the decimal two spots to the left.
4/100= 0.04 4.0 --> 0.4 --> 0.04[tex]commission= 0.04* $1370[/tex]
[tex]commission = \$ 54.8[/tex]
Chris's commission is $54.80
what are the answers to these?!?!?!?>>>>>
2(y−3)=4 (solve for "y")
2x+5y=10 (solve for "x")
6x+3y=4y+11 (solve for "y")
3(2x+4)=2+6x+10 (solve for "x")
y=−3x+6 (solve for "x")
m=8−2(p−m) (solve for "p")
1) y=5
2) x=(10-5y)/2
3) y=(11-6x)/-3
4) x=0
5) x=(-y+6)/3
6) p=(8+m)/2
If y varies directly as x, and y=6 when x=10, find x when y=18