Answer:
(3,2)
Step-by-step explanation:
5x+2y= 19
4x - 3y = 6
I will use elimination
Multiply the first equation by 4
20x +8y = 76
Multiply the second equation by -5
-20x +15y = -30
Add them together to eliminate x
20x +8y = 76
-20x +15y = -30
---------------------------
23y = 46
Divide by 23
23y/23 = 46/23
y =2
Now find x
5x+2y =19
Substitute y=2
5x+2(2) =19
5x+4 = 19
Subtract 4 from each side
5x +4-4 =19-4
5x= 15
Divide by 5
5x/5 = 15/5
x=3
The solution is
(3,2)
does the point (4,-2) lie on the circle with a center at (4,0) and a radius of 2?
Answer:
Yes
Step-by-step explanation:
It lies on the circle because the radius is 2 and the point goes down two units just like the radius
Answer:
yes
Step-by-step explanation:
the radius extends out 2 points throughout the entire circle therefore -2 will be reached as it is 2 units below the center of (4, 0)
what is an integer function?
Answer:
The INTEGER function returns an integer representation of a number or character string in the form of an integer constant.
Step-by-step explanation:
PLS HELP PLSS WILL MARK BRAINLEST
what is the area of the triangle in square inches?
Answer:
22in.^2
Step-by-step explanation:
Area of a triangle formula is A= b*h* 1/2
(b= base h= height)
the base is 8
the height is 5 1/2
8*5 1/2
----------
2
5 1/2 = 5.5
8* 5.5 = 44
44/2 = 22
How do you solve 2y=1/2(98x+38)?
Answer:
y=24.5x+9.5
Step-by-step explanation:
simplify
2y=1/2(98x+38)
distribute 1/2
2y=49x+19
divde the each term with 2
y=24.5x+9.5
What is the approximate volume of the cylinder? Use 3.14 for
Step-by-step explanation:
it's 452.16 because it's the closest estimate
Carly missed 22.5% of the questions on
the last test, and the rest of the questions
were correct. She had 31 questions
correct. How many questions were on the
test?
Answer:
40 questions
[tex]correct \: questions = (100 - 22.5)\% \\ = 77.5\% \\ let \: total \: questions \: be \: x \\ = > 77.5\% \times x = 31 \\ \frac{77.5}{100} \times x = 31 \\ 77.5x = 3100 \\ x = 40 \\ = 40 \: questions[/tex]
In rhombus ABCD shown below, AB=17 and AC=16 determine the length of BD without (hint , not with trigonometry)
Answer:
[tex]BD = 30[/tex]
Step-by-step explanation:
Given
[tex]AB = 17[/tex]
[tex]AC = 16[/tex]
See attachment
Required
Find BD
If AC = 16, then:
[tex]AO = 16/2[/tex] i.e. half the diagonal AC
[tex]AO = 8[/tex]
The diagonals of a rhombus are perpendicular.
This implies that we can apply Pythagoras theorem.
Using Pythagoras theorem on triangle AOB, we have:
[tex]AB^2 = AO^2 + OB^2[/tex]
[tex]17^2 = 8^2 + OB^2[/tex]
[tex]289 = 64 + OB^2[/tex]
Collect like terms
[tex]OB^2 = 289 - 64[/tex]
[tex]OB^2 = 225[/tex]
Take positive square roots of both sides
[tex]OB = 15[/tex]
To solve for BD, we use:
[tex]OB = \frac{BD}{2}[/tex] --- i.e. half the diagonal BD
[tex]BD = 2 * OB[/tex]
[tex]BD = 2 * 15[/tex]
[tex]BD = 30[/tex]
What is the axis of symmetry and vertex?
y=-3x2-24x-42
Can someone help me pls
Answer:
okay can you tell me if the first -3x and second 24x are multiply or are just letters and I than I will post the answer
calculate the difference between the two times.
8: 15 am. or pm
3: 30 am or pm.
Answer:
5:15 pm is the answer for the question
!50 POINTS!
Which number is a solution of the inequality?
6 greater than z left-parenthesis 10 minus z right-parenthesis
A. 0
B. 1
C. 2
D. 3
I'm super confused on this question. Awarding Brainiest for Answer and Step By Step Explanation. Thanks!
Answer:
A. 0Step-by-step explanation:
Given inequality:
6 > z(10 - z)Solution:
6 > 10z - z²z² - 10z + 6 > 0z² - 10z + 25 > 19(z - 5)² > 19z - 5 > √19 ⇒ z > 5 + √19 ⇒ z > 9.35z - 5 < - √19 ⇒ z < 5 - √19 ⇒ z < 0.64The only number satisfying this inequality is 0.
Correct choice is A
solve for x: 2x-y=3 if you can show work thanks.
Answer:
x = 3/2 + y/2
Step-by-step explanation:
:)
what percent is 300 of 1l
Answer:
30%
Step-by-step explanation:
1L = 1000ml
--------------------
100%-> 1000
1%-> 10
300 ÷ 10 = 30%
Can someone pleaseeee help and if you’re correct i’ll give brainliest
Answer:
Rows: 3+3+3+3=12
Columns: 4+4+4=12
10x— 9y = 10
8x+9y=10
Answer:
x=10/9
y=10/81
Step-by-step explanation:
help me please thank you
Answer:A
Step-by-step explanation:
ILL MARK BRAINIEST IF YOU DO ONLY NUMBER 8 DO NOT DO 7!!!!
Answer and Step-by-step explanation:
8. We want to solve for a of the trapezoid area formula.
A = [tex]\frac{h}{2} (a + b)[/tex]
First off, we need to multiply both sides by [tex]\frac{2}{h}[/tex] to cancel out the [tex]\frac{h}{2}[/tex].
[tex]\frac{2A}{h}[/tex] = a + b
Now, we need to subtract b from both sides.
[tex]\frac{2A - b}{h}[/tex] = a
We get the answer to be:
I. a = [tex]\frac{2A - b}{h}[/tex]
#teamtrees #PAW (Plant And Water)
Which point has coordinates (-2, 3)?
Answer: I need a picture to go along with it because I see nothing.
Step-by-step explanation:
The core of the Sun is about 174,000 miles across.
What is 174,000 in scientific notation?
O A. 174 x 103
OB. 17.4 x 103
O C. 17.4 x 104
OD. 1.74 x 105
O E. 1.74 x 106
Answer: D: 1.74 x 105
What is the measure of
Angles are not necessarily drawn to scale,
A
B
С
73
x O
Answer:
17°
Step-by-step explanation:
m∠x=90-73=17° (∠AOC is right angle)
Express (2y)3/2 in radical form.
Answer:
[tex](2y)^{2/3} =\sqrt[2]{2y^{3} }[/tex]
Step-by-step explanation:
Given: [tex](2y)^{3/2}[/tex]
Rule: [tex](a)^{b/c}=\sqrt[c]{a^{b} }[/tex]
Therefore: [tex](2y)^{2/3} =\sqrt[2]{2y^{3} }[/tex]
Which of the following are identities? Check all that apply.
Answer: The correct identities are: 1 + tan^2x = sec^2x 1 + cot^2x = csc^2x sin^2x + cos^2x = 1 which correspond to B and D
Step-by-step explanation:
T////T
im ok at math if its wrong im sorry T^T
Answer:
A, B, C, and D.
Yeah, I bet you didn't see this one coming.
Hope this helps!
HELP ME HEP ME PLEASEEEE IM DESPRATE
Answer: 30 degrees
Step-by-step explanation:
90 - 60 = 30
what is the CORRECT answer?
Answer:
bro use the dang fromula
Step-by-step explanation:
L*W=A divided by 2
2.
Abus drove 70 miles in 2 hours. What is the unit rate?
d
b
70 miles
35 miles
140 miles
140 miles
1 hour
2 hours
1 hour
4 hours
No
Answer:
The unit rate is 35 miles per hour
Step-by-step explanation:
The number of hours you study for an exam impacts your grade. What is a reasonable value of the range
a.2.16
b.2/3
c.-15
d.80
Answer: 80
Step-by-step explanation:
Answer:
b.2/3
Step-by-step explanation:
I think this would be the most reasonable.
Can somebody help me
Answer:
22x
Step-by-step explanation:
Step-by-step explanation:
13) x = 17sin(59°)
x = 14.57
14) x = 17sin(60°)
x = 14.72
Guys i need these answers badly so i would appreciate if someone responded
Thanks !
Answer:
Y is the midpoint of XZ, so XY = YZ
20x - 30 = 12x + 1020x - 12x = 10 + 308x = 40x = 5Find XZ:
XZ = 2(XY) = 2(20*5 - 30) = 140The answer is:
x = 5 and XZ = 140------------------------
B is the midpoint of AC, so AB = BC
4x + 3 = 2x + 154x - 2x = 15 - 32x = 12x = 6Find AC:
AC = 2(AB) = 2(4*6 + 3) = 54The answer is:
x = 6, AC = 54Write the equation of a line parallel to the line y = 4x - 3 and passing through the point (0,10).
Answer:
y=4x + 10
Step-by-step explanation:
Parallel lines always have the same slope. The point that you have is the y-intercept because the x is 0. So now you have both the slope and y- intercept and just need to sub it into the y=mx+b equation
The equation of line passes through the point (0, 10) will be;
⇒ y = 4x + 10
What is Equation of line?The equation of line in point-slope form passing through the points
(x₁ , y₁) and (x₂, y₂) with slope m is defined as;
⇒ y - y₁ = m (x - x₁)
Where, m = (y₂ - y₁) / (x₂ - x₁)
Given that;
The point on the line are (0, 10).
And, The parallel line is,
⇒ y = 4x - 3
Now,
Since, The equation of line passes through the point (0, 10).
So, We need to find the slope of the line.
Since, The slope of the parallel line is same.
Hence, Slope of the line is,
y = 4x - 3
m = dy/dx = 4
m = 4
Thus, The equation of line with slope 4 is,
⇒ y - 10 = 4 (x - 0)
⇒ y - 10 = 4x
⇒ y = 4x + 10
Therefore, The equation of line passes through the point (0, 10) will be;
⇒ y = 4x + 10
Learn more about the equation of line visit:
https://brainly.com/question/18831322
#SPJ2
Shannon is making a rocket by folding a paper. She needs a piece of paper with a area of 84 square inches.Shannon has a piece of paper with a length of 14 inches. She will trim the paper to make it the correct width. What will the width of the paper need to be
Answer:
the 42 width of the paper need