1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Sveta_85 [38]
2 years ago
7

40

Mathematics
1 answer:
kkurt [141]2 years ago
3 0

Answer : 70

Step-by-step explanation: because  40 +30 and the biggest number in the chart  is 7 just add a 0 and it becomes 70

You might be interested in
F = uv/u + v make u the subject
never [62]

I'm assuming that you mean

\dfrac{uv}{u+v}

because if you meant

\dfrac{uv}{u}+v

then u would simplify and you couldn't make it the subject.

Under this assumption, we start with

F=\dfrac{uv}{u+v}

We multiply both sides by u+v

F(u+v)=uv

We expand the left hand side:

Fu+Fv=uv

We move all terms involving u to the left and all terms not involving u to the right:

Fu-uv=-Fv

We factor u on the left hand side:

u(F-v)=-Fv

We divide both sides by F-v

u=\dfrac{-Fv}{F-v}

3 0
3 years ago
Solve the system by substitution 5x+3y=8 3x+y=8
Yakvenalex [24]
3x+y=8
y=8-3x

5x+3(8-3x)=8
5x+24-9x=8
-4x+24=8
-4x=-16
x=4

5x+3y=8
5(4)+3y=8
20+3y=8
3y=-12
Y=-4

5x+3y=8
5(4)+3(-4)=8
20+-12=8
8=8
4 0
3 years ago
I need help finding the answer!!
Whitepunk [10]

Answer:

The second option

Step-by-step explanation:

Here, we need to multiply each part of the matrix by -10.

This will give us: [ -230 380 ]

                           [ -170    60 ]

So, the answer is the second option.

3 0
1 year ago
For the following hypothesis test, determine the null and alternative hypotheses. Also, classify the hypothesis test as two-tail
bagirrra123 [75]

Answer:

Option B:

H_0: \mu = 22.1

H_a: \mu \neq 22.1

Classification:

The hypothesis test is Two-tailed.

Step-by-step explanation:

The mean length of imprisonment for motor-vehicle theft offenders in this country is 22.1 months.

This means that the null hypothesis is that the mean is of 22.1 months, that is:

H_0: \mu = 22.1

A hypothesis test is to be performed to determine whether the mean length of imprisonment for motor-vehicle theft offenders in this city differs from the national mean of 22.1 months.

At the alternate hypothesis, we test if this mean is different of 22.1, that is:

H_a: \mu \neq 22.1

Which means that the answer is given by option b).

Which of the following is the correct classification of the hypothesis test?

We test if the mean is different from a value, which means that the hypothesis test is Two-tailed.

7 0
3 years ago
For the given points a(-4 6) and b(6 -4) find the slope of a line through points A and B
kap26 [50]

Answer:

the required slope of the points is -1...

3 0
3 years ago
Other questions:
  • What is 2 3/4 qts converted into pts
    7·1 answer
  • Triangle Congruency Proofs: <br> Complete each proof. Remember to MARK THE DIAGRAM
    6·1 answer
  • I need help with 3 and 4 and help me as soon as possible!!‼️‼️
    11·2 answers
  • To the nearest square unit, what is the area of the regular heptagon shown below?
    10·2 answers
  • What is perpendicular to y = -2/3x - 1?
    7·1 answer
  • I dont know what is the missing number 6 x ? x 3 = 90
    10·1 answer
  • Use arrow notation to describe the translation of point P(8, –5) to point P'(15, –6).
    7·1 answer
  • Which of the following is most likely the next step in the series?
    5·1 answer
  • Evaluate Vb2 - 4ac when a = -2, b = 8 and c = 1/2 Write your answer in simplest form and in decimal form rounded to the
    6·1 answer
  • In need help in this
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!