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
sergey [27]
3 years ago
8

Question 1 of 10

Mathematics
1 answer:
Archy [21]3 years ago
3 0

Answer:

A. y = 7(x + 1)²-3

Step-by-step explanation:

Parabola:

y = 7x^{2} + 14x + 4

y = 7(x^{2} + 2x) + 4

Putting into vertex form, remember that:

(x + a)^{2} = x^{2} + 2ax + a^{2}

In this question:

x^{2} + 2x, to put into this format:

x^{2} + 2x + 1 = (x + 1)^{2}

We add one inside the parenthesis to do this. The parenthesis is multiplied by 7, so for the equivalent, we also have to subtract 7. Then

Vertex form:

y = 7(x^{2} + 2x + 1) + 4 - 7

y = 7(x + 1)^{2} - 3

So the correct answer is:

A. y = 7(x + 1)²-3

You might be interested in
Number 1 is the question. the second picture is the one i want you to draw the answer on please ty
laiz [17]
So 4:30 and then the second one is 15:75
4 0
2 years ago
100 POINTS PLUS BRAINLY
Iteru [2.4K]

Answer:

\sf adjacent  = 4.5 \ ft

Given:

  • opposite side: 13 ft
  • adjacent unknown
  • angle of 71°

using tan rule:

\sf tan(x) = \dfrac{opposite}{adjacent}

\hookrightarrow \sf tan(71) = \dfrac{13}{adjacent}

\hookrightarrow  \sf adjacent  = \dfrac{13}{tan(71) }

\hookrightarrow  \sf adjacent  = 4.5

4 0
2 years ago
Read 2 more answers
Can You Please Explain How To Do Problem #10? Thank you! :)​
alexandr1967 [171]

Answer:

separate and square both the top and bottom

the square of square root three is just 3 and the square of  3 (the bottom of the fraction) is 9

so now you have 3(i^2) /9

you can simplify this by three  and then i^2 is -1

you now have -1/3 and thats the final answer

6 0
3 years ago
PLEASE HELP!!!!!! 7TH GRADE MATH SO IT SHOULD BE EASY FOR SOME OF YALL. write the expression below as a product of two factors
Cloud [144]

Answer and Step-by-step explanation:

6(2x + 3y - 10) is the answer.

This is because 6 can be taken out from all 3 numbers, and will create these two factors, the factors being 6 and (2x + 3y - 10).

#teamtrees #WAP (Water And Plant)

5 0
2 years ago
Read 2 more answers
What is the density of a sample with a mass of 5250g and a volume of 4.5mL?
just olya [345]

Step-by-step explanation:

Density=5250/4.5=1166.66 g/ml

7 0
3 years ago
Other questions:
  • Write an equation for each line in slope-intercept form.
    11·1 answer
  • There is 267 students and 21 adults going on a school trip.An equal number of people will ride on each bus .If there 9 buses,how
    8·1 answer
  • A savings account is started with an initial deposit of $700. The account earns 1.5% interest compounded annually. Write an equa
    12·2 answers
  • What is repeating 8.333 in fration form as mixed and improper form?
    6·1 answer
  • Erica has a 18% discount coupon for an electronics store.she sees a new television that she wants to buy. After the 18% discount
    11·1 answer
  • What are the equivalent fractions to 20/24
    7·1 answer
  • Urgent!!
    12·1 answer
  • T-2b+c=16n solve for c
    11·1 answer
  • Help, please..................
    14·1 answer
  • <img src="https://tex.z-dn.net/?f=%5Csqrt%7Bx%7D%20%5E2%3D16" id="TexFormula1" title="\sqrt{x} ^2=16" alt="\sqrt{x} ^2=16" align
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!