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
lisov135 [29]
3 years ago
7

I need help with this question it’s urgentttt

Mathematics
1 answer:
Andreas93 [3]3 years ago
4 0

Answer:

EF is equal to 6.

Step-by-step explanation:

Those triangles are similar so put them in proportion , as in 8/16=EF/12 then cross multiply and solve

You might be interested in
Last year, a car dealership sold 144 new cars and 108 used cars. Since then, the number of new cars sold is increasing by 8 cars
morpeh [17]

Answer: 4 years

Step-by-step explanation:

144 + 8(4) = 176

108 - 5(4) = 88

88 x 2 = 176

4 0
3 years ago
(1 point) A particle starts at the point P=(−2,−1,3)P=(−2,−1,3) when t=0t=0 and moves along a straight line toward Q=(−4,0,6)Q=(
Ahat [919]

Answer:

The position is given by r(t) =  (-2 -t √14, 1 + √3.5, 3 + 3√3.5)

Step-by-step explanation:

The direction is given by the difference between the starting point and the end point, thus it is (-4,0,6)-(-2,-1,3) = (-2,1,3). The norm of this vector is        √( (-2)²+1²+3²) = √14 = 3.7416 secons

Since the speed is 7 cm/sec, we need to multiply this vector by 7/√14 = √3.5 in order to obtain how much does the particle advance each second.

As a consecuence, it advances (-2,1,3) * √3.5 = (- √14, √3.5, 3 √3.5)

And, as a result, the position after t seconds is given by the function

r(t) = (-2,1,3) + t (-√14, √3.5, 3 √3.5) = (-2 -t √14, 1 + √3.5, 3 + 3√3.5)

8 0
3 years ago
Factor the expression. r^2 – 49 a. (r – 7)(r 9) b. (r 7)(r 7) c. (r – 7)(r 7) d. (r – 7)(r – 7)
gayaneshka [121]
r^2-49=r^2-7^2\\\\/use\ a^2-b^2=(a-b)(a+b)/\\\\=\boxed{(r-7)(r+7)}
6 0
3 years ago
PLEASE help ASAP! BRAINLIEST to correct answer!
SIZIF [17.4K]

Answer:

ok so here is the answer:  n

hk

b

a

х

V

Angle a = 126. What is the measure of angle b? Explain how you calculated your answer.

Angle a = 126 Write an equation(s) in terms of b to find the measure of angle h.

Calculate the measure of angle h, using the equation(s) you wrote for Part B.

How would knowing the measure of angle y change the equation(s) you wrote in Part B to find the measure of angle h?

2021 Muminate Education Inc Your input: factor x2+4x+3.

To factor the quadratic function x2+4x+3, we should solve the corresponding quadratic equation x2+4x+3=0.

Indeed, if x1 and x2 are the roots of the quadratic equation ax2+bx+c=0, then ax2+bx+c=a(x−x1)(x−x2).

Solve the quadratic equation x2+4x+3=0.

The roots are x1=−1, x2=−3 (use the quadratic equation calculator to see the steps).

Therefore, x2+4x+3=1(x+1)(x+3).

(x2+4x+3)=1(x+1)(x+3)

Step-by-step explanation:

4 0
3 years ago
Help me with this plzzzz
Firlakuza [10]

Answer:

0.25 or 1/4

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Other questions:
  • Assume that the growth rate of a population of ants is proportional to the size of the population at each instant of time. Suppo
    13·1 answer
  • A club with 24 members has 4,896 event flyers to pass out. Each member will be given the same number of flyers. How many flyers
    8·1 answer
  • Math need to simplify the expression
    13·2 answers
  • Exponential function please help
    14·1 answer
  • Please help me out!!
    6·1 answer
  • Nine cars (3 Pontiacs [labeled 1-3], 4 Fords [labeled 4-7], and 2 Chevrolet's [labeled 8-9]) are divided into 3 groups for car r
    7·1 answer
  • In 2 hours the minutes hand of a clock rotates through an angel of how many degrees?
    7·2 answers
  • (4x – 17)<br> (5x - 1)<br><br> What is x?
    6·1 answer
  • There are two bags of oranges on sale. The prices are shown below: Bag A: $2400 containing 12 oranges Bag B: $3000 containing 20
    6·1 answer
  • 10 POINTS FOR THE CORRECT ANSWER PLEASE HELP ME
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!