4 years ago

Use compatible numbers to estimate:4×26×7

Mathematics

1 answer:

Vlada [557]4 years ago

7 0

4 times 25= 100 100 times 7= 700

mark brainliest plsss

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Can someone please answer this please!

DaniilM [7]

Answer:

T = ±22

Step-by-step explanation:

Let's solve your equation step-by-step.

0=−16t2+7744

Step 1: Add 16t^2 to both sides.

0+16t2=−16t2+7744+16t2

16t2=7744

Step 2: Divide both sides by 16.

16t2

7744

t2=484

Step 3: Take square root.

t=±√484

t=22 or t=−22

6 0

3 years ago

The area of these shapes are?

kipiarov [429]

Answer:
Figure 1:
Area = 390ft^2

Figure 2:
Area = 325.17 ft^2

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3 years ago

How do you solve these problems?

Rzqust [24]

A)

$\bf log_4(x)=3\\\\
-----------------------------\\\\
log_{{ a}}{{ a}}^x\implies x\qquad \qquad 
\boxed{{{ a}}^{log_{{ a}}x}=x}\impliedby 
\begin{array}{llll}
\textit{we'll use this}\\
\textit{cancellation rule}
\end{array}\\\\
-----------------------------\\\\
4^{\cfrac{}{}log_4(x)}=4^3\implies x=4^3$

b)

$\bf 3^{2y}=81\qquad 
\begin{cases}
81=3\cdot 3\cdot 3\cdot 3\\
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\textit{same base}\\
exponents\\
must\ be\\
the\ same
\end{array}
\\\\\\
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6 0

4 years ago

PLSSS HELLPPPPP ASAPPP

padilas [110]

I believe it would be 80

8 0

3 years ago

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natita [175]

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