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3 years ago

Use benchmark to estimate 2.81 + 3.72

Mathematics

1 answer:

Novay_Z [31]3 years ago

3 0

2.81+3.72=6.53 Which You Could Estimate To 6.50 or 6.5

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Using the following relationship,

Aleks04 [339]

D. xb-a=y because it the close to being it it looks like

8 0

3 years ago

Mrs. Grady surveyed 30 students, 12 of which said they liked basketball, 16 of which said they liked hockey, and 4 of which said

diamong [38]

Because 4 people likes both, we take out 4 from the sum of both the number to avoid double count.

People who like both sports = 12 + 16 - 4 = 24
People who do not like either sport = 30 - 24 = 6

4 0

4 years ago

Answers<br> A. 5<br> B. 9<br> C. 11<br> D. 13

MA_775_DIABLO [31]

4k-7=2k+3
-2k. -2k

2k-7=3
+7. +7
2k=10
2÷2 2÷10
k=5

4(5)-7=13

Answer D

5 0

4 years ago

Monica wants to measure the dimensions of her rectangular lawn. If the longer side of the lawn is (x + 3) feet and the diagonal

Nikolay [14]

Answer:

$\text{Hence, The shortest side of her Lawn is} \sqrt{2x+7}\text{ feet}$

Step-by-step explanation:

Given: Monica wants to measure the dimensions of her rectangular lawn.

If the longer side of the lawn is BC=(x + 3) feet.

If the diagonal length is AC=(x + 4) feet.

Let the shortest side of lawn is AB=y feet

The angle of rectangle is right angle.

Using diagonal, shortest and longer side to make a right angle triangle whose hypotenuse is length of diagonal.

Using Pythagoreous theorem,

$AB^2+BC^2=AC^2$

$y^2+(x+3)^2=(x+4)^2$

$y^2=(x+4)^2-(x+3)^2$

$y^2=x^2+16+8x-x^2-9-6x$

$y^2=2x+7$

$y=\pm \sqrt{2x+7}$

We will ignore the negative value because side of rectangle can't be negative.

$y=\sqrt{2x+7}\text{ feet}$

$\text{Hence, The shortest side of her Lawn is} \sqrt{2x+7}\text{ feet}$

4 0

3 years ago

The corrdinates of point h are 3,-2 wich point has the coordinates -3,2

timofeeve [1]

Answer: h

Step-by-step explanation: since point h corrdinates of 3,-2 and u wanna find 3,-2 the answers is in the question

8 0

3 years ago