Answers
Answer:
C. Aka z = -3.Step-by-step explanation:
Subtract 7 from both sides.
We have:
-3z-4z=21
So:
-7z=21
21/-7 = -3
The answer is C.
Related Questions
4.
The coordinates of Care (x, 5), the coordinates of
D are (6,9), and the coordinates of the midpoint,
M, of are (-1,7). Find x.
Answers
Answer:
is there a picture if not then my bad
Answer:
x = - 8Step-by-step explanation:
Use midpoint formula for x coordinate:
x = (x₁ + x₂)/2Substitute values and solve for x:
-1 = (x + 6)/2x + 6 = -2x = -2 - 6x = -8A man weighing 800 N is hanging from a 2 mm diameter titanium wire with a cross-section of 3 x 10^-6 m^2. Will the wire break?
Answers
Answer:
Since stress is greater than ultimate strength, the wire will break.
Step-by-step explanation:
The titanium wire is experimenting an axial load. Ultimate strength equals [tex]2.20\times 10^{8}\,Pa[/tex]. The wire shall break if and only if stress is at least equal to ultimate strength. The equation for axial stress ([tex]\sigma[/tex]), measured in pascals, in the wire with circular cross-section is:
[tex]\sigma = \frac{4\cdot F}{\pi\cdot D^{2}}[/tex] (1)
Where:
[tex]F[/tex] - Axial force, measured in newtons.
[tex]D[/tex] - Cross-section diameter, measured in meters.
Please notice that axial force is the weight of the man hanging from wire.
If we know that [tex]F = 800\,N[/tex] and [tex]D = 0.002\,m[/tex], then the axial stress experimented by the titanium wire is:
[tex]\sigma = \frac{4\cdot (800\,N)}{\pi\cdot (0.002\,m)^{2}}[/tex]
[tex]\sigma \approx 2.546\times 10^{8}\,Pa[/tex]
Since stress is greater than ultimate strength, the wire will break.
please helpppp and explain
Answers
Answer:
angle BAC=50-2x
Step-by-step explanation:
angle ACD=115+x
then, angle ACB=180-(115+x) because it is a supplementary angle
angle ABC=angle ACB because it is an isosceles triangle
angle BAC=180-2[180-(115+x)]
angle BAC=180-360+230-2x
angle BAC=50-2x
Look at the information below, decide what type of substance the paint is.
ANSWER NEEDED ASAP
Answers
Answer:
A mixture?
Step-by-step explanation:
Jeff can paint 28 square feet every 15 minutes. Angela can paint 115 square feet every hour. Who can paint faster, and by how many square feet per hour?
Answers
Answer:
Angela by 3 sf per hour
Step-by-step explanation:
60÷15=4
28×4=112
115-112=3
Will give, Branliest.
Answers
Answer:
24
Step-by-step explanation:
x * 5 - 17 = 103
x * 5 = 120
x = 24
Answer:
s=24
103+17=120
120÷5=24
making the answer 24
Please mark brainliest
Amal has 1/2 pound of baked beans. She divides the beans into 8 equal servings. Write and solve an equation to find how many pounds of baked beans are in each serving
Answers
Answer:
1/16 pound or 0.0625 pound beans.
Step-by-step explanation:
According to the problem, calculation of given data are as follows,
Total baked beans = 1/2 pounds
Number of serving = 8
if distribute equal beans in each serving than,
8 serving = 1/2 pound
So, 1 serving = 1/(2×8) pound
= 1/16 pound or 0.0625 pound beans.
Hence, each serving consist of 0.0625 pound baked beans.
Does the point (2, 5) satisfy the equation y = 5x − 5?
Answers
Answer:
yes
Step-by-step explanation:
so x=2 and y=5
5 = 5 x 2 - 5
0=0
equation is right
5 Marta designs a logo for her mother's business,
X-treme Nutrition. The logo is shown.
35°
35°
b
Which equation and solution best represents
angle b?
A b + 35 = 90; b = 55°
B b-35 = 35; b = 70°
C 6+ 70 = 180; b = 110°
D b + 35 = 180; b = 145°
Answers
Answer:
(C). b + (2 × 35) = 180; b = 110°
Step-by-step explanation:
two step equation -9 + 2x = .-31
Answers
Answer:
Step-by-step explanation:
Add 9 to both sides
2x = -22
Divide both sides by 2
x = -11
please help i’ll mark brilliant
Answers
Answer: 564
Step-by-step explanation:
Answer:
The output would be 564
Step-by-step explanation:
If the input is 12, then the output would be 12 * 47 which is 564.
Please help will give brainliestw
Answers
Answer:
6 square units
Step-by-step explanation:
In oder to do this, you need graph paper to make it easier and then mark your graph paper with the quadrants.
I got 3 unites for the height and 4 units for the base
4 x 3 = 12 square units
however the formula for a triangle is Ab/2
so divide 12/2 = 6
So its 6 square units
Convert to %
1) 1/2
2) 1/4
3) 1/3
4) 3/10
5) 6.5/10
Answers
Answer:
1) 50%
2) 25%
3) 33.33 %
4) 30%
5) 65%
Can somebody help me? I need help...
Answers
Answer:
8/9
Step-by-step explanation:
your adding 1/18 each time
Solve the equation:
-35 = -30 - b
Plzzzzz help
Answers
-35=-30-b
+30 +30
-5=-b
—. —
-1. -1
5=b
I will give BRAINLIEST:)
Answers
Answer:
A'C'=AC=3
Step-by-step explanation:
Answer:
C: 3 units
Step-by-step explanation:
Just think about it... 180 degrees rotated is exactly opposite rotation degree.
If you rotate 90 degrees, the triangle will end up on quadrant 4.
Rotate 360 degrees, the triangle will stay in the same quadrant.
In conclusion, C is the best option
evaluate this expression -2.8 + -2.5
Answers
Answer:
-5.3
Step-by-step explanation:
-2.8+(-2.5)=-2.8-2.5=-5.3
Answer:
-5.3
Step-by-step explanation:
Is the relation a function?? Plzz helppp!!!
(1,19) , (2,23) , (3,23) , (4,29) , (5,31)
Answers
The value of x is -1/4. Order these expressions from least to greatest:
x; 1 – X; x– 1; -1 divided by x
Answers
1 - x
X - 1
a bag of trail mix is 4lbs. by weight, 36% is oats.
what is the weight of the oats in the trail mix?
Answers
Answer:
1.44 lbs is from the oats
Step-by-step explanation:
Multiply that by the 4 lbs of trail mix.
4 x 0.36 = 1.44 lbs
Mr. Brown purchased tires for his car. The tires were $75 each, including tax, plus $10 for installation. Mr. Brown paid $160 for the tires and installation. Which equation can be used to find the number of tires, t, that Mr. Brown purchased?
A. t = 160 + 75(10)
B. 75 + t(10) = 160
C. 75t + 10 =160
D. 160t - 75 = 10
Could you show your work? Thanks!
Answers
Answer:
Step-by-step explanation:
The answer is C because t = 2 so 75x2=150 and 150 + 10= 160.
Solve the system of linear equations below, using substitution method.
8x+9y=368x+9y=36
3x+4y=163x+4y=16
Answers
Given:
The system of equations is
[tex]8x+9y=36[/tex]
[tex]3x+4y=16[/tex]
To find:
The solution of the given system of equations using the substituting method.
Solution:
We have,
[tex]8x+9y=36[/tex] ...(i)
[tex]3x+4y=16[/tex] ...(ii)
From (ii), we get
[tex]3x=16-4y[/tex]
[tex]x=\dfrac{16-4y}{3}[/tex] ...(iii)
Putting this value in (i), we get
[tex]8\left(\dfrac{16-4y}{3}\right)+9y=36[/tex]
Multiply both sides by 3.
[tex]8(16-4y)+27y=108[/tex]
[tex]128-32y+27y=108[/tex]
[tex]-5y=108-128[/tex]
[tex]y=\dfrac{-20}{-5}[/tex]
[tex]y=4[/tex]
Putting y=4 in (iii), we get
[tex]x=\dfrac{16-4(4)}{3}[/tex]
[tex]x=\dfrac{16-16}{3}[/tex]
[tex]x=\dfrac{0}{3}[/tex]
[tex]x=0[/tex]
Therefore, the solution of given system of equations is (0,0).
1. Please help if possible :)
Answers
Answer:
54
Step-by-step explanation:
6x=9x-27
x=9
9*9-27=54
WHAT WOULD THIS BEEE!!
Answers
use Pythagoras theorem
20 units
Last week, labron jogged for 2 1/4 miles. This week , he plants to jog 2 times as far as last week. How many miles does Lebron Plant to jog this week?
Answers
Answer:
4.5 miles
Step-by-step explanation:
2 times as far as last week
last week was 2.25 miles
2* 2.25 = 4.5 miles
in order to raise money for road repairs, the bridge tolls going to increase 130% next month. If the bridge is currently 2.50 how much will the toll increase?
Answers
Answer:
$5.75
Step-by-step explanation:
I hope you get it right!
The ratio of students to teachers at a school is 19 : 1. At this school, there are 400 people (teachers and students). How many of these 400 people are students? (enter number only, without the unit)
Answers
Answer:
There are 380 students and 20 teachers.
Answer:
380
Step-by-step explanation:
Let 19x = no. of students
x = no. of teachers
Then, x + 19x = 400
20x = 400
x = 20
19x = 19(20) = 380
40 is 20 of what number
Answers
[tex]\huge\text{Hey there!}[/tex]
[tex]\large\text{40 is 20\% of what time number?}\\\\\\\bullet \large\bold{We\ are\ looking\ for\ your\ UNKNOWN\ number; we\ can\ the\ value}\\\large\bold{is\ \underline{a}\ for\ our\ answer!}\\\bullet\large\bold{REMEMBER: Percentages\ are\ out\ 100\ \& the\ word\ \underline{of}\ means\ \underline{multiply}}[/tex]
[tex]\huge\text{NOW LETS SOLVE FOR YOUR ANSWER!}[/tex]
[tex]\bold{Equation: 20\%\ \times \ a\ =\ 40}\\\\\bold{a = \dfrac{40}{20\%}}}\\\\\bold{20\% = \dfrac{20}{100}\rightarrow 0.2}}}\\\\\bold{Equation: a = \dfrac{40}{0.2}}\\\\\bold{\dfrac{40}{0.2}=200}\\\\\bold{a=200}\\\\\boxed{\boxed{\bold{Answer: 200}}}\huge\checkmark[/tex]
[tex]\large\textsf{Good luck on your assignment and enjoy your day!}[/tex]
~[tex]\frak{Amphitrite1040:)}[/tex]
Triangle PQR has the following coordinates:
P(-9, -12)
Q(-6, -13)
R(-7, -4)
Where is Q’ after a translation 9 units right and 11 units up?
Answers
Answer:
P(0, -1)
Q(3, -2)
R(2, 7)
Step-by-step explanation:
9 units right : +9 to each x-coordinate
11 units up: +11 to each y-coordinate
P(-9+9, -12+11) = P(0, -1)
Q(-6+9, -13+11) = Q(3, -2)
R(-7+9, -4+11) = R(2, 7)
The number of incidents in which police were needed for a sample of 10 schools in one county is:
6
40
49
4
42
47
17
8
32 11
Find the first and third quartiles for the data.
Part: 0/2
Part 1 of 2
First quartile Q, is
Answers
Answer:
3Step-by-step explanation:
expand My eBay and thought you might be a good time to get the latest flash player is required for video playback is unavailable right now because this video is not available for remote playback is unavailable right now because this video is not available for remote playback is unavailable right now because this video is not available for remote playback is unavailable right for me as soon is unavailable and nice and clean this is unavailable for video for me and