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stich3 [128]
4 years ago
12

Simplify: 20 - 2 × 8 + 42 A. 20 B. 160 C. 52 D. 26

Mathematics
1 answer:
Gnom [1K]4 years ago
5 0

Answer: 46

Step-by-step explanation:

You can simplify this using PEMDAS:

Parentheses

Exponents

Multiplication/division

Addition/subtraction

Move through the steps in that order.

In this case, the first two steps are absent, so multiply first:

20 - 16 + 42

Then, add and subtract:

46.

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In the equation below a is a number between 0 and 1 8 x a = b which statement about the value of b is always true
Kamila [148]

Answer:

See Explanation

Step-by-step explanation:

Given

0 \le a \le 1

8*a =b

Required

Determine the true statement about b

The question is incomplete as options are not given. However, a general explanation is as follows:

Rewrite 8*a =b

b = 8 * a

When a = 0

b = 8 * 0 = 0

When a = 1

b = 8 * 1 = 8

This means that:

For 0 \le a \le 1

Then 0 \le b \le 8

<em>This means that: b is a number between 0 and 8</em>

3 0
3 years ago
Please help!!!! giving brainlist
brilliants [131]

Answer:

I saw this is recent so I cant explain to much because I dont know if your timed but 1.4 is equal to your number. all you got to  do is 2.1 divided by 1.5

Step-by-step explanation

6 0
3 years ago
Read 2 more answers
In the summer the temperature goes above 95 degrees on 56% of days. If the summer have 94 days how many should be above 95 degre
Otrada [13]
.56 x 94 = 52.64
You can't have .64 of a day so round up to 53 days
4 0
3 years ago
Read 2 more answers
Find the ends of the major axis and foci
poizon [28]

The ends of the major axis is = (0, ± 13) and that of the foci is: (0,±5).

<h3>What is the axis and foci about?</h3>

The term 'foci' is known to be the point at which there is the coming together of light or any other kinds of electromagnetic radiation, particles, etc.

It is also seen as the point from which they seems to go apart.

\frac{x^{2} }{144} + \frac{y^{2} }{169}  = 1

\frac{x^{2} }{12^{2} } + \frac{y^{2} }{13^{2} }

Hence, major axis is = (0, ± 13)

e = \sqrt{1 -\frac{12^{2} }{13^{2} } }

= 5/13

Foci is: (0± 13 x \frac{5}{13})

Foci is: (0, ±5)

Therefore, The ends of the major axis is = (0, ± 13) and that of the foci is: (0,±5).

Learn more about foci from

brainly.com/question/26250569

#SPJ1

8 0
2 years ago
Place the indicated product in the proper location on the grid. 3a2 · 2a3 next question ask for help turn it in
marishachu [46]
3a^2 * 2a^3 = 6a^5

because 3 x 2 = 6.....and a^2 * a^3 = a^(2 + 3) = a^5
put it all together and u get 6a^5
8 0
4 years ago
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