All categories

4 years ago

I need help ASAP!!!

Mathematics

1 answer:

jenyasd209 [6]4 years ago

3 0

Answer:

t is no less than 5

Step-by-step explanation:

You might be interested in

Find f(-7) if f(x) = 2x + 8

inna [77]

Answer:

-6

Step-by-step explanation:

f(x) = 2x + 8

Put x as -7.

f(-7) = 2(-7) + 8

Multiply first.

f(-7) = -14 + 8

Add.

f(-7) = -6

7 0

3 years ago

Read 2 more answers

If y varies directly with x, and y = 35 when x = 5, find x when y = -7

Igoryamba

It is C
p/s : follow me and I will help you more about maths :)))

3 0

3 years ago

Read 2 more answers

WILL MARK BRANLIEst

LenaWriter [7]

Answer:

click on the thanks button

5 0

3 years ago

John can jog twice as fast as he can walk. He was able to jog the first 5 miles to his grandmothers house, but the he tired and

Arte-miy333 [17]

Formula for speed = distance/ time
S = 7/.9 = 7.77 miles per hour or 8 mph if you round up.

8 0

3 years ago

The sum of four consecutive terms of an arithmetic progression is 32 and the ratio of product of the first and the last term to

OverLord2011 [107]

The four consecutive terms are 2,6,10,14.

Explanation:

Let the four consecutive terms of an arithmetic progression be (a - 3d), (a - d),(a + d), (a + 3d)

It is given that the sum of four consecutive terms is 32.

Thus, adding all the four consecutive terms, we have,

$\begin{array}{r}{a-3 d+a-d+a+d+a+3 d=32} \\{4 a=32} \\{a=8}\end{array}$

Thus, the value of a is 8.

It is also given that the ratio of the product of first and last term to the product of the two middle terms is 7:15. Thud, we have,

$\frac{(a-3d)(a+3d)}{(a-d)(a+d)} =\frac{7}{15}$

Simplifying the terms, we have,

$\begin{aligned} \frac{a^{2}-9 d^{2}}{a^{2}-d^{2}} &=\frac{7}{15} \\ 15\left(a^{2}-9 d^{2}\right) &=7\left(a^{2}-d^{2}\right) \\ 15 a^{2}-135 d^{2} &=7 a^{2}-7 d^{2} \\ 8 a^{2} &=128 d^{2} \end{aligned}$

Now, substituting a = 8, we have,

$\begin{aligned} 8(64) &=128 d^{2} \\ 512 &=128 d^{2} \\ 4 &=d^{2} \\ 2 &=d \end{aligned}$

Thus, the value of d is 2.

Now, we shall substitute the value of a and d in the terms (a - 3d), (a - d),(a + d), (a + 3d), we get, the four consecutive terms.

Thus, the four consecutive terms are 2,6,10,14.

8 0

3 years ago