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
RideAnS [48]
3 years ago
5

1. 9(h+7) = -12h solve for h h=

Mathematics
1 answer:
alekssr [168]3 years ago
7 0

Answer:

-3

Step-by-step explanation:

You might be interested in
Which answer choice is an expression that represents the amount of money Kelly has left, if she started with 75 dollars and the
ASHA 777 [7]

Answer:

75 - p

Step-by-step explanation: you said that she has 75$ and p is what she spent so the expression is 75 - p

7 0
2 years ago
Read 2 more answers
What is the value of x?
kondor19780726 [428]
Cos x = sin (90 - x)

cos 63 = sin (90 - 63)

cos 63 = sin 27

x = 27
8 0
3 years ago
Read 2 more answers
Tensile strength tests were performed on two different grades of aluminum spars used in manufacturing the wing of a commercial t
jekas [21]

Answer:

(12.1409, 14.0591

Step-by-step explanation:

Given that Tensile strength tests were performed on two different grades of aluminum spars used in manufacturing the wing of a commercial transport aircraft. From past experience with the spar manufacturing process and the testing procedure, the standard deviations of tensile strengths are assumed to be known.

Group   Group One     Group Two  

Mean 87.600 74.500

SD 1.000 1.500

SEM 0.316 0.433

N 10      12    

The mean of Group One minus Group Two equals 13.100

standard error of difference = 0.556

 90% confidence interval of this difference:  

(13.1-1.725*0.556,13.1+1.725*0.556)\\=(12.1409, 14.0591)

  t = 23.5520

 df = 20

4 0
3 years ago
Need help to write equations for 5, 6 & 7
Softa [21]
6)
A quadratic function has the form
y = ax^2 + bx + c

Use point (3, 5) in the equation above:

5 = a(3^2) + 3b + c
5 = 9a + 3b + c
9a + 3b + c = 5     Equation 1

Use point (4, 3) in the equation above:

3 = a(4^2) + 4b + c
16a + 4b + c = 3    Equation 2

Use point (5, 3) in the equation above.

5 = a(5^2) + 5b + c
25a + 5b + c = 5       Equation 3.

Now solve the system of equations of equations 1, 2, and 3 to find the coefficients, a, b, and c.

9a + 3b + c = 5
16a + 4b + c = 3
25a + 5b + c = 5

Subtract the first equation from the second equation.
Subtract the second equation from the third equation.
You get
7a + b = -2
9a + b = 2

Subtract the first equation above from the second equation to get.
2a = 4
a = 2

Substitute:
7a + b = -2
7(2) + b = -2
b = -16

9a + 3b + c = 5
9(2) + 3(-16) + c = 5
18 - 48 + c = 5
c - 30 = 5
c = 35

The equation in standard form is

y = 2x^2 - 16x + 35

We can find it in vertex form:

y = 2(x^2 - 8x) + 35

y = 2(x^2 - 8x + 16) + 35 - 32

y = 2(x - 4)^2 + 3
3 0
3 years ago
The regular price of a space invader game is 52, but its on sale. the discount is $13 What percent discount is this?
Mashutka [201]
25% off is the answer
5 0
3 years ago
Read 2 more answers
Other questions:
  • The product of 0.1400 × 6.02 × 1023 will have how many significant figures?
    9·2 answers
  • Can anyone help me I don’t know how to do this
    10·1 answer
  • Find the degree of the monomial x^2 z^3
    6·1 answer
  • Help with this pls, I am giving brainliest :D
    15·1 answer
  • Kitchen chairs are purchased wholesale for $36 each by a discount furniture store. Then, the store marks up the chairs by 60 per
    13·1 answer
  • Can anyone help me with this question? I’m cured taking a test and I got confused on this one question
    7·1 answer
  • 5 - 1 and 1/3 *<br><br> I’m so confused on how to do this...
    6·2 answers
  • HELP PLEASE! FOR EACH RELATION, DECIDE WHETHER OR NOT IT IS A FUNCTION.​
    10·1 answer
  • TIMED!!!
    7·1 answer
  • Which statements are true for the function y=Ixl -2?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!