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3 years ago

pls help me with this question..... if right I will follow u.... and give u brainliest ......pls it's urgent......

Mathematics

1 answer:

Mrac [35]3 years ago

6 0

Answer:

Step-by-step explanation:

3). Naomi walked 4560 m to the nearest 10 m. Peta walked 4600 m to the nearest 100 m.

a). 4555 m ≤ n ≤ 4564 m

4550 m ≤ p ≤ 4649 m

b). If n = 4555 m and p = 4550 m

Then Naomi walked more than Peta

If n = 4555 m and p = 4555 m

Then Both Naomi and Peta walked exactly the same.

If n = 4555 m and p = 4649 m

Then Peta walked further than Naomi.

Therefore, all three statements could be true.

4). (a). x = 120 to nearest 10 → 115 ≤ x ≤ 124

(b). y = 1.24 to 2 decimal places → 1.24

(Already given in 2 decimal places)

(c). z = 0.0124 to 3 significant numbers → 0.0124

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:P HELLLP what is (13x20)5+6 = ___ - 1/3.

Ksenya-84 [330]

Answer: 1304.7

Step-by-step explanation: just took test

7 0

3 years ago

Read 2 more answers

What is the sign of f on the interval -2

TEA [102]

Answer:

$f$ is sometimes positive and sometimes negative.

Step-by-step explanation:

$f(x)=(x-3)(x+2)(x+4)(x+4)(x-1)(2x-9)$

Take $x=-1\in(-2,\frac{9}{2})\ as-2$

$f(-1)=(-1-3)(-1+2)(-1+4)(-1-1)(-2-9)\\\\=(-4)(1)(3)(-2)(-11)\\\\=-264\\\\f(-1)$

Take $x=2\in(-2,\frac{9}{2})\ as\ -2$

$f(2)=(2,-3)(2+2)(2+4)(2-1)(2\times2-9)\\\\=(-1)(4)(6)(1)(-5)\\\\=120\\\\f(2)>0$

Hence $f(x)$ for $x=-1$ and $f(x)>0$ for $x=2$

So $f$ is sometimes positive and sometimes negative in the interval.

3 0

3 years ago

Please help me

Kruka [31]

y = x^2 -4x

x = -1

y = (-1)^2 - 4×-1=1+4 = 5

x= 0

y = (0)^2 - 4×0 = 0

x = 1

y = 1^2 -4×1 = 1-4 = -3

x = 2

y = 2^2 -4×2 = 4-8 = -4

x=3

y = 3^2 - 4×3 = 9-12 = -3

x = 4

y = 4^2 - 4×4 = 16 - 16 = 0

now 2nd equation

y = 2x^2 + x

x = -2

y = 2 (-2)^2 + (-2)= 8-2 = 6

x = -1

y = 2 (-1)^2+(-1)= 2-1 = 1

x = 0

y = 2(0)^2 +0 = 0

x = 1

y = 2 (1)^2 + 1 = 3

x = 2

y = 2(2)^2+2= 8 + 2 = 10

6 0

3 years ago

0.06 + 2 =

AysviL [449]

Answer:

1.) 2.06

2.) 0.43

3.) 0.52

4.) 5.06

5.) 0.51

6.) 4.2

7.) 2.02

8.) 0.7

9.) 0.6

10.) 3.05

11.) 1.3

12.) 0.2

13.) 0.5

14.) 0.4

15.) 0.02

16.) 0.07

17.) 6.01

18.) 3.2

19.) 0.53

20.) 1.2

Step-by-step explanation:

Simple addition with decimals. If you have a whole number like 5, with a decimal like 0.07, 5+0.07 would be 5.07. 5 would take the spot of 0 in the ones place and .07 would remain. If you have 0.10+0.8, it would be 0.9 as your answer since we make 0.8 to 0.80 or 0.10 to 0.1 and add the two together. Hope this helped!

3 0

3 years ago

The area of triangle ABC is 1.89 square feet. The measure of side c is ______.

Feliz [49]

we are given

Area is 1.89

$A=40$