The function g is defined on the real numbers by g(x) = 2x + x(x+3)g(x)=2x+x(x+3). What is the value of g(2)g(2)? Ans...

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Nguyễn Thị Hồng Lê

13 tháng 6 2018 lúc 8:21

The function g is defined on the real numbers by g(x) = 2x + x(x+3)g(x)=2x+x(x+3). What is the value of g(2)g(2)?
Answer:

Câu 2

The function p is defined on the real numbers by p(q) =\dfrac{q^2-q}{(q+1)q}p(q)=(q+1)qq2−q. What is the value of 10\times p(-11)10×p(−11)?
Answer:

Câu 3

The function p is defined on the real numbers by p(q) = 3-\left| {3q-7} \right|p(q)=3−∣3q−7∣. What is the value of p(-2)p(−2)?
Answer:

Câu 4

The function f is defined on the real numbers by f(x)= 2x+a-3f(x)=2x+a−3. What is the value of a if f(-3)=6f(−3)=6?
Answer:

Câu 5

Given a negative number k and a function ff is defined on the real numbers by f(x)=\dfrac{6}{13}xf(x)=136x.
Compare: f(k)f(-k)

f(-k)f(−k)

Lớp 7 Toán Câu hỏi của OLM

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Trần Thị Anh Thư

28 tháng 2 2018 lúc 14:48

Câu 1 The function mm is defined on the real numbers by m(k) dfrac{k+2}{k+8}m(k) k+8 k+2 . What is the value of 10times m(2)10×m(2)? Answer: Câu 2 The function ff is defined on the real numbers by f(x) ax-3f(x)ax−3. What is the value of a if f(3)9f(3)9? Answer: Câu 3 The function ff is defined on the real numbers by f(x) 2x+a-3f(x)2x+a−3. What is the value of a if f(-5)11f(−5)11? Answer: Câu 4 The function ff is defined on the real numbers by f(x) 2 + x-x^2f(x)2+x−x 2 . What is the value of...

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Câu 1 The function mm is defined on the real numbers by m(k) = \dfrac{k+2}{k+8}m(k)= k+8 k+2 . What is the value of 10\times m(2)10×m(2)? Answer: Câu 2 The function ff is defined on the real numbers by f(x)= ax-3f(x)=ax−3. What is the value of a if f(3)=9f(3)=9? Answer: Câu 3 The function ff is defined on the real numbers by f(x)= 2x+a-3f(x)=2x+a−3. What is the value of a if f(-5)=11f(−5)=11? Answer: Câu 4 The function ff is defined on the real numbers by f(x) = 2 + x-x^2f(x)=2+x−x 2 . What is the value of f(-3)f(−3)? Answer: Câu 5 Given a real number aa and a function ff is defined on the real numbers by f(x)=-6\times|3x|-4f(x)=−6×∣3x∣−4. Compare: f(a)f(a) f(-a)f(−a) Câu 6 There are ordered pairs (x;y)(x;y) where xx and yy are integers such that \dfrac{5}{x}+\dfrac{y}{4}=\dfrac{1}{8} x 5 + 4 y = 8 1 Câu 7 Given a negative number kk and a function ff is defined on the real numbers by f(x)=\dfrac{6}{13}xf(x)= 13 6 x. Compare: f(k)f(k) f(-k)f(−k) Câu 8 Given a positive number kk and a function ff is defined on the real numbers by f(x)=\dfrac{-3}{4}x+4f(x)= 4 −3 x+4. Compare: f(k)f(k) f(-k)f(−k). Câu 9 A=(1+2+3+\ldots+90) \times(12 \times34-6 \times 68):(\dfrac{1}{3}+\dfrac{1}{4}+\dfrac{1}{5}+\dfrac{1}{6})=A=(1+2+3+…+90)×(12×34−6×68):( 3 1 + 4 1 + 5 1 + 6 1 )= Câu 10 Given that \dfrac{2x+y+z+t}{x}=\dfrac{x+2y+z+t}{y}=\dfrac{x+y+2z+t}{z}=\dfrac{x+y+z+2t}{t} x 2x+y+z+t = y x+2y+z+t = z x+y+2z+t = t x+y+z+2t . The negative value of \dfrac{x+y}{z+t}+\dfrac{y+z}{t+x}+\dfrac{z+t}{x+y}+\dfrac{t+x}{y+z} z+t x+y + t+x y+z + x+y z+t + y+z t+x is

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Lớp 7 Toán Câu hỏi của OLM

Tạ Kim Bảo Hoàng

8 tháng 8 2017 lúc 15:58

The function is defined on the real numbers by . What is the value of ? Answer: Câu 2:The function is defined on the real numbers by . What is the value of a if ? Answer: Câu 3:The function is defined on the real numbers by . What is the value of ? Answer: Câu 4:The function is defined on the real numbers by . What is the value of ?Answer:Câu 5:Given triangle ABC, m∠B60°. Two bisectors AP and CQ intersect at I.The measure of angle AIC is Câu 6:Câu 7:Câu 8:Given a negative number and a func...

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The function is defined on the real numbers by . What is the value of ?
Answer:

Câu 2:
The function is defined on the real numbers by . What is the value of a if ?
Answer:

Câu 3:
The function is defined on the real numbers by . What is the value of ?
Answer:

Câu 4:
The function is defined on the real numbers by . What is the value of ?
Answer:

Câu 5:
Given triangle ABC, m∠B=60°. Two bisectors AP and CQ intersect at I.The measure of angle AIC is

Câu 6:

Câu 7:

Câu 8:
Given a negative number and a function is defined on thereal numbers by .
Compare:

Câu 9:
Given a positive number and a function is defined on thereal numbers by .
Compare: .

Câu 10:
Given a real number and a function is defined on the realnumbers by .
Compare:

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Lớp 7 Toán Câu hỏi của OLM

Nguyễn Thị Hồng Lê

13 tháng 6 2018 lúc 8:19

The function f is defined on the real numbers by f(x)= ax-3f(x)=ax−3. What is the value of a if f(5)=12f(5)=12? Answer:

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Lớp 7 Toán Câu hỏi của OLM

Phạm Thùy Linh

6 tháng 1 2016 lúc 21:28

Question 1:Fill the suitable number in the following blank?.343_____3Question 2:The positive value of such that left|2x-3right|+716 is _______Question 3:Given a function gleft(xright)2sqrt{x-7} . Find the value of gleft(11right)?Answer: The value of gleft(11right) is ._________Question 4:Find the value of such that 0,008left(0,2right)^x.Answer: . x_________Question 5:Given a functiongleft(xright)frac{2}{3-x} . Find the value of .gleft(1right)+gleft(2right)Answer: The value of gleft(1right)+gl...

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Question 1:
Fill the suitable number in the following blank?
.\(343=\)_____\(3\)

Question 2:
The positive value of such that \(\left|2x-3\right|+7=16\) is _______

Question 3:
Given a function \(g\left(x\right)=2\sqrt{x-7}\) . Find the value of \(g\left(11\right)\)?
Answer: The value of \(g\left(11\right)\) is ._________

Question 4:
Find the value of such that \(0,008=\left(0,2\right)^x\).
Answer: . \(x=\)_________

Question 5:
Given a function\(g\left(x\right)=\frac{2}{3-x}\) . Find the value of .\(g\left(1\right)+g\left(2\right)\)
Answer: The value of \(g\left(1\right)+g\left(2\right)\) is ._______

Question 6:
Suppose that \(\frac{7y-x}{2x+y}=\frac{1}{3}\) then the ratio of \(x\) to \(y\) is .________

Question 7:
If \(x\) is directly proportional to \(y\) with the scaling factor is 8, \(z\) is directly proportional to \(x\) with the scaling factor is 4.
Then \(z\) is directly proportional to \(y\) with the scaling factor is______ .

Question 8:
The maximum value of \(A=\frac{6}{2.\left(x-3\right)^2+3}\) is .______

Question 10:
Suppose that\(\frac{7-3x}{5}=\frac{y+4}{3}=\frac{6x-y}{5}\) . Find the ratio of \(y\) to \(x\)
Answer: The ratio of \(y\) to \(x\) is .______________-
(write your answer by decimal in simplest form)

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Lớp 7 Toán Câu hỏi của OLM

Trần Thị Anh Thư

1 tháng 3 2018 lúc 18:15

In the figure below, x Câu 2 Find the measure of angle J if widehat{K}29^o K 29 o and angle J and K are supplementary. Answer: widehat{J} J ^o o . Câu 3 In the figure below, x Câu 4 In the figure below, x Câu 5 Solve: |2x-3|-43∣2x−3∣−43, where xx is a negative number. Answer: xx Câu 6 Calculate: 9+|-6|:1^2 9+∣−6∣:1 2 Câu 7 Compare: dfrac{36}{27} 27 36 dfrac{4}{3} 3 4 Câu 8 Find the negative number yy such that |y+dfrac{7}{2}|-dfrac{1}{2}4∣y+ 2 7 ∣− 2 1 4. Answer: yy Câu 9 Find xx su...

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In the figure below, x = Câu 2 Find the measure of angle J if \widehat{K}=29^o K =29 o and angle J and K are supplementary. Answer: \widehat{J}= J = ^o o . Câu 3 In the figure below, x = Câu 4 In the figure below, x = Câu 5 Solve: |2x-3|-4=3∣2x−3∣−4=3, where xx is a negative number. Answer: x=x= Câu 6 Calculate: 9+|-6|:1^2 =9+∣−6∣:1 2 = Câu 7 Compare: \dfrac{36}{27} 27 36 \dfrac{4}{3} 3 4 Câu 8 Find the negative number yy such that |y+\dfrac{7}{2}|-\dfrac{1}{2}=4∣y+ 2 7 ∣− 2 1 =4. Answer: y=y= Câu 9 Find xx such that \dfrac{32}{2^x}=2 2 x 32 =2. Answer: x=x= Câu 10 Find nn such that \dfrac{(-4)^n}{64}=-16 64 (−4) n =−16. Answer: n=n= Cần gấp nhé

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Lớp 7 Toán Câu hỏi của OLM

Nguyễn Phi Hòa

28 tháng 12 2015 lúc 19:49

Find the value of x such that: \(\frac{3\left(x+2\right)}{2x+3}=\frac{7}{8},\left(x\ne-\frac{3}{2}\right)\) . Answer: x = ...

( write your answer by decimal in simplest form )

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Lớp 7 Toán Câu hỏi của OLM

Nguyễn Đức Huy

10 tháng 9 2017 lúc 16:17

A function f is defined for non-negative integers n and k as follows f(0,n) = n + 1; f(k,0) = f(k-1,1) ; f(k+1,n+1) = f(k,f(k+1,n)). Evaluate f(2,2).

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Lớp 7 Toán Câu hỏi của OLM

25 tháng 12 2016 lúc 20:21

if 5+\(\sqrt{3}\)the value of \(^{x^2}\)-10+25 is

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Lớp 7 Toán Câu hỏi của OLM

Hà Phương Linh

22 tháng 12 2015 lúc 22:16

Fill in the blank with the suitable number (Note: write decimal number with the dot between number part and fraction part. Example: 0.5)Question 1:Given .Calculate: .Question 2:Given two triangles and .If and then .Question 3:Suppose that is directly proportional to with the scaling factor is .If and then k.Question 4:In this figure, find the value of ?Answer: .(write your answer by decimal in simplest form)Question 5:Find the value of ?Answer: .(write your answer by decimal in simplest f...

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Fill in the blank with the suitable number (Note: write decimal number with "the dot" between number part and fraction part. Example: 0.5)

Question 1:
Given .
Calculate: .

Question 2:
Given two triangles and .
If and then .

Question 3:
Suppose that is directly proportional to with the scaling factor is .
If and then k=.

Question 4:

In this figure, find the value of ?
Answer: .
(write your answer by decimal in simplest form)

Question 5:

Find the value of ?
Answer: .
(write your answer by decimal in simplest form)

Question 6:
Given two triangles and .
If and then the perimeter of is .

Question 7:

In this figure, .

Question 8:

The value of .
(write your answer by decimal in simplest form)

Question 9:
The perimeter of a triangle is and the sides of its are in a ratio of .
Then the sides's length of the triangle are .
(write your answer from least to greatest and used ";")

Question 10:

Fill the suitable number in the "?".
Answer: .

giúp mik vs nha please

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Lớp 7 Toán Câu hỏi của OLM

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