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2 years ago

Plz do number 4. 5th grade math

Mathematics

2 answers:

GrogVix [38]2 years ago

5 0

Seventy eight (78)

Happy studying
Brooke

77julia77 [94]2 years ago

4 0

Answer:

your answer would be 78

Step-by-step explanation:

9/702

- 63

_____

- 72

_______

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Help me on this please

djyliett [7]

${x}^{2} = {17}^{2} - {11}^{2} \\ {x}^{2} = 289 - 121 = 168 \\ x = \sqrt{168 } = 12.96$

6 0

3 years ago

Suppose you deposit $2,500 in a savings account that pays interest at an annual rate of 6%. If no money is added or withdrawn fr

Advocard [28]

Answer:

A: 2977.54

B: 7135.84788228

C: 4

D: 6

Step-by-step explanation:

8 0

2 years ago

A seal dove 95 meters below the surface of the water to reach a fish. It traveled 18% of the total distance every second.

BlackZzzverrR [31]

95*18%
18%=0.18
95 x 0.18 =17.1
Now, multiply 17.1 by 5 = 85.5

4 0

3 years ago

Simplify using the horizontal method.

ivolga24 [154]

(2n2 + 4n + 4)(4n – 5)
= 8n^3 + 16n^2 +16n -10n^2 - 20n - 20
= 8n^3 +6n^2 -4n - 20

answer is d.
8n3 + 6n2 – 4n – 20

8 0

3 years ago

What is the zero in the quadratic function f(x)= 9x^2-54x-19?

Alex17521 [72]

Answer:

6.33... and 0.333...

Step-by-step explanation:

The quadratic formula is

$x=\frac{-b+\sqrt{b^2-4ac} }{2a}$ .

It is important because while some quadratics are factorable and can be solved not all are. The formula will solve all quadratic equations and can also give both real and imaginary solutions. Using the formula will require less work than finding the factors if factorable. We will substitute a=9, b=-54 and c=-19.

$x=\frac{-b+/-\sqrt{b^2-4ac} }{2a}\\x=\frac{-(-54)+/-\sqrt{(-54)^2-4(9)(-19)} }{2(9)}\\x=\frac{54+/-\sqrt{2916+684} }{18}$

We will now solve for the plus and the minus.

The plus,,,

$x=\frac{54+\sqrt{3600}}{18}\\x=\frac{54+60}{18}\\x=\frac{114}{18}\\x=6.3$

and the minus...

$x=\frac{54-\sqrt{3600}}{18}\\x=\frac{54-60}{18}\\x=\frac{-6}{18}\\x=-0.333...$

8 0

3 years ago

Plz do number 4. 5th grade math​

Plz do number 4. 5th grade math