Ask question

Ask question

All categories

3 years ago

7

(ANSWER NOW FOR 20 POINTS AND BRAINLEST) Quadrilateral EFGH is a scaled copy of quadrilateral ABCD. Answer the statement below a

s true or false. Segment EF is twice as long as segment AB.
True or False?

1 answer:

sergey [27]3 years ago

7 0

Answer:true

Step-by-step explanation:

The top line segment (12) is twice as long as the original, smaller (6), segment

You might be interested in

Solve for y.<br> 27=6x-9yx

slamgirl [31]

Answer:

Y= - 3/x+2/3

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

If 55% is 70.4 so what is hundred percent

hodyreva [135]

Answer:

55%=70.4

1%=70.4/55= 1.28

100%=1.28into 100 = 128

8 0

3 years ago

Find the value of a and of b for which<br>(a) the solution of x2 + ax < b is<br>-2<x < 4

KengaRu [80]

Answer: $a = -2$

$b = 8$

Step-by-step explanation:

Given :

$x^{2} +ax$

re - writing the equation , we have

$x^{2} +ax-b$

we need to find the value of a and b for which -2<x < 4 , this means that the roots of the quadratic equation are -2<x < 4.

The formula for finding the quadratic equation when the roots are known is :

$x^{2}$ - sum of roots(x) + product of root = 0

sum of roots = -2 + 4 = 2

product of roots = -2 x 4 = -8

substituting into the formula , we have:

$x^{2} -2x-8=0$ , which could be written in inequality form as

$x^{2} -2x-8$

comparing with $x^{2} +ax-b$ , it means that :

$a = -2$

$b = 8$

3 0

3 years ago

Sarah's mom takes the parkway to work it takes her 30 minutes to travel from mile marker 88th where she answers to her exit at m

pentagon [3]

121- 88 = 33 miles traversed in 30 minutes.

d = r*t
33 = r* (.5 hr)

Solve for r. Average speed will be in miles per hour. <span>
Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions here.
</span>

7 0

3 years ago

Suppose a population has a mean of 400 and a standard deviation of 24. if a random sample of size 144 is drawn from the populati

Drupady [299]

Find the critical value or test statistic.
$z = \frac{m - \mu}{\sigma/\sqrt{n}} = \frac{404.5 - 400}{24/\sqrt{144}} = \frac{4.5}{2} = 2.25$

Find P(z > 2.25) using a normal distribution table

P(z > 2.25) = 0.0122

6 0

3 years ago