3 years ago

If someone could help me with this, that would be great.

Mathematics

1 answer:

Snowcat [4.5K]3 years ago

5 0

I’m 99% sure the answer is:

c: 2t - d = 260
t - d = 320

You might be interested in

The top portion of the Washington Monument is a square pyramid. The dimensions are shown in the net to the nearest foot.

HACTEHA [7]

5215 sq ft. S= p times h /2 +B
35*4 * 57/ 2. + 35*35
Got h=57 by a2+b2=c2
17.5 sq+ 55 sq =5215 sq rt of 5215 is 57

3 0

3 years ago

Read 2 more answers

What is the sum of 8/10 and 8/100

Ber [7]

8/10 = 80/100
So the sum is 80/100 + 8/100 = 88/100 or 22/25

4 0

3 years ago

What is the relationship between mass gravity and weight

Anastaziya [24]

Weight = mass * acceleration of gravity

6 0

3 years ago

A random sample of the amounts for 22 purchases was taken. The mean was $42.97, the standard deviation was $22.82, and the m

Illusion [34]

Answer: a) 84 and b ) 2084

Step-by-step explanation:

Given : Sample standard deviation : s= $22.82

(Population standard deviation is unknown ) , so we use t-test.

Critical value or the 95% confidence intervals : $t_{n-1}*=2.0$

Formula to find the sample size :

$n=(\dfrac{t^*\cdot s}{E})^2$

a) E = 5

$n=(\dfrac{(2)\cdot 22.82}{5})^2$

$n=(9.128)^2=83.320384\approx84$

i.e. Required sample size : n= 84

b) E = 1

$n=(\dfrac{(2)\cdot 22.82}{1})^2$

$n=(45.64)^2=2083.0096\approx2084$

i.e. Required sample size : n= 2084

8 0

3 years ago

Which verbal expression best represents the algebraic expression 3n-4?

ANTONII [103]

Answer:

-1

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers