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
BabaBlast [244]
3 years ago
11

What is -8x - 2y= -4 when y equals -5x

Mathematics
2 answers:
PSYCHO15rus [73]3 years ago
7 0
-8x - 2y = -4

When y = -5x
-8x - 2(-5x) = -4
- 8x + 10x = -4
2x = -4
x = -4/2 = -2
astra-53 [7]3 years ago
5 0
-8x - 2y = -4 ; y = -5x
-8x - 2(-5x) = -4
-8x + 10x = -4
2x = -4
2x/2 = -4/2
x = -4/2 = -2/1 = -2
x = -2
You might be interested in
Y= -(x-1)^2+1<br><br><br>please helppppp​
Readme [11.4K]

Answer:x:

y=-5/4

Step-by-step explanation:

Vertex (1,-1)

focus(1,-3/4)

Axis of symmetry(X=1)

8 0
3 years ago
Read 2 more answers
Needed help for my math please
vesna_86 [32]

Answer:

see explanation

Step-by-step explanation:

(a)

\frac{a}{a} = 1 ( any value divided by itself = 1 )

(b)

\frac{a}{1} = a ( any value divide by 1 is the value itself )

(c)

\frac{a}{b} × \frac{c}{d} = \frac{ac}{bd}

The product of 2 fractions is the product of the numerators divided by the product of the denominators

(d)

\frac{a}{b} ÷ \frac{c}{d} = \frac{ad}{bc}

To divide 2 fractions, leave the first fraction, change division to multiplication and turn the second fraction upside down, that is

\frac{a}{b} ÷ \frac{c}{d} = \frac{a}{b} × \frac{d}{c} = \frac{ad}{bc}

(e)

\frac{a}{d} + \frac{b}{d} = \frac{a+b}{d}

Since the fractions have a like denominator, add the numerators leaving the denominator. This applies to subtraction also

(f)

\frac{a}{d} - \frac{b}{d} = \frac{a-b}{d}

See explanation for part (e)




6 0
3 years ago
Please help ASAP!<br><br> what is x=-b/2a?
valina [46]

This is the formula to solve for the vertex.

Example Question:

Find the vertex of y = -0.5x^2 + 100x

-b/2a = -100/2(-0.5) = -100/-1 = 100

The x coordinate of the vertex is 100.

Best of Luck!

P.S. this is 1000th question i've answered :)

5 0
3 years ago
Use rounding to estimate 0.93+0.18 plz help me
Anastasy [175]
0.93 = 0.9
0.18 = 0.2 

0.9 + 0.2 = 1.1

Answer 1.1
6 0
3 years ago
Read 2 more answers
Is 10.846 an integer ​
yulyashka [42]

Hello!

An integer is defined as a number which is not a fraction or irrational. It should be able to be written out as just a number, without a decimal point or additional fraction. (It can have a negative sign) For example, a few integers would be 2, 5, -8, and 9109, while some non-integers would be 3.1, 3 3/2, and 5i.

In this case, 10.846 is not an integer, as it has a decimal.

Hope this helps!

3 0
3 years ago
Other questions:
  • Which rate is greater? 18 pages in 36 minutes or 20 pages in 30 minutes. Explain your resoning
    14·2 answers
  • The graph of part of linear function g is shown on the grid.
    11·1 answer
  • Middle school math <br>doesn't have to be a drawing
    6·1 answer
  • What is the volume of the cylinder below?
    12·2 answers
  • Given that XH bisects Answer choices <br> A.) 50<br> B.) 48<br> C.) 62<br> D.) none of the above
    8·1 answer
  • If g=8,what is the value of the expression g 2+3
    12·1 answer
  • Find the GCF of 72 and 81. Show your work. (3 points) Part C: Using the GCF you found in Part B, rewrite 72 + 81 as two facto
    10·1 answer
  • -1/2x = -4/5<br> Help please
    15·2 answers
  • Factor completely 2x2 − 18. Prime 2(x2 − 9) 2(x 3)(x − 3) 2(x 3)(x 3).
    11·1 answer
  • Use the information given to answer the question.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!